Common use of Exercise of the Purchase Rights Clause in Contracts

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (A-B) ------- A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Stock. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (AY(A-B) ------- ------ A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Stock. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (A-B) ------- A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Stock. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.number

Exercise of the Purchase Rights. The (a) Subject to this Agreement, the purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, Warrantholder at any time, or from time to time, prior to the expiration of the applicable term set forth in Section 2 above2, by tendering to the Company at its principal office a notice of exercise in the form attached hereto to this Agreement as Exhibit I A (the "“Notice of Exercise"”), duly completed and executed, together with a cashier’s check or wire transfer (or other mode of payment acceptable to the Company as provided in Section 3(b) below) in the amount of the aggregate purchase price of the Shares to be purchased, together with all applicable transfer taxes, if any provided, however, in no event may Warrantholder exercise this Warrant for less than Twenty Five Thousand (25,000) shares in any single exercise. Promptly upon Upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereaftertherefore, the Company shall issue to Warrantholder a share certificate for the number of Shares purchased. (b) Provided the Company’s Common Stock is quoted on the OTC Bulletin Board or listed on the American Stock Exchange, Nasdaq Capital Market, Nasdaq Global Select Market, Nasdaq Global Market, or New York Stock Exchange, this Warrant may also be exercised by means of a "cashless exercise" in which the Warrantholder shall be entitled to receive a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject Warrant Shares equal to future purchasesX=(Y(A-B))/A, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formulawhere: X = Y (A-B) ------- A Where: X = X= the number of shares of Preferred Common Stock to be issued to the Warrantholder. Y = holder Y= the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Stock. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share purchasable under the Warrant or, if only a portion of Common Stock: the Warrant is being exercised, the portion of the Warrant being exercised (iat the date of such calculation) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "A= Fair Market Value B= Purchase Price to Public" specified in the final prospectus with respect (as adjusted to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions date of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.calculation)

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit EXHIBIT I (the "Notice of ExerciseNOTICE OF EXERCISE"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net IssuanceNET ISSUANCE") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (AY(A-B) ------- ------ A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Stock. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice acknowledgment of Exercise exercise in the form attached hereto as Exhibit II (the "Acknowledgment of Exercise") indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (AY(A-B) ------- A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Preferred Stock. B = the Exercise Price. As used hereinFor purposes of the above calculation, current fair market value of Common Preferred Stock shall mean with respect to each share of Common Preferred Stock: (i) if the exercise is in connection with an initial public offeringoffering of the Company's Common Stock, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the fair market value per share shall be the product of (x) the initial "Price to Public" specified in the final prospectus with respect to the offeringoffering and (y) the number of shares of Common Stock into which each share of Preferred Stock is convertible at the time of such exercise; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the product of (x) the average of the closing prices over a twenty-one five (215) day period ending three days before the day the current fair market value of the securities is being determineddetermined and (y) the number of shares of Common Stock into which each share of Preferred Stock is convertible at the time of such exercise; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the product of (x) the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one five (215) day period ending three days before the day the current fair market value of the securities is being determineddetermined and (y) the number of shares of Common Stock into which each share of Preferred Stock is convertible at the time of such exercise; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Preferred Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its the Company's Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Preferred Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (AY(A-B) ------- ----- A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Stock. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice Acknowledgment of Exercise in the form attached hereto as Exhibit II indicating the number of shares which remain subject to future purchases, if any. In the event of an initial public offering, and if specifically requested by the Underwriter(s), Warrantholder will agree to lockup provisions equivalent to but not to exceed those required of the other preferred shareholders. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (AY(A-B) ------- ------ A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested as to be which the Warrants are being exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Stock. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the Securities and Exchange Commission (the "SEC"), then the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. below If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (AY(A-B) ------- ------ A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Stock. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if anyany and an acknowledgment of exercise duly completed and executed in the form attached hereto as Exhibit III. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by cancellation by Warrantholder or indebtedness of the Company under the Loan Agreement and Note to Warrantholder, (iii) by surrender of Warrants ("Net Issuance") as determined below, or (iv) by a combination of (i), (ii), and (iii). If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (AY(A-B) ------- A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common StockPreferred Stock (at the date of calculation). B = the Exercise PricePrice (as adjusted to the date of calculation). As used hereinFor purposes of the above calculation, current fair market value of Common Preferred Stock shall mean with respect to each share of Common Preferred Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial fair market value per share shall be the product of (x) the "Initial Price to Public" specified in the final prospectus with respect to the offering;offering and (y) the number of shares of Common Stock into which each share of Preferred Stock is convertible at the time of such exercise: (ii) if If this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the product of (x) the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determineddetermined and (y) the number of shares of Common Stock into which each share of Preferred Stock is convertible at the time; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the produce of (x) the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determineddetermined and (y) the number of shares of Common Stock into which each share of Preferred Stock is convertible at the time of such exercise; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Preferred Stock shall be the product of (x) the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, and (y) the number of shares of Common Stock into which each share of Preferred Stock is convertible at the time of such exercise, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuanceany method, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (AY(A-B) ------- A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Stock. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Common Stock purchased and shall execute the Notice Acknowledgment of Exercise in the form attached hereto as Exhibit II indicating the number of shares which remain subject to future purchases, if any. In the event of an initial public offering, and if specifically requested by the Underwriter(s), Warrantholder will agree to lockup provisions equivalent to but not to exceed those required of the other common shareholders. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Common Stock in accordance with the following formula: X = Y (AY(A-B) ------- ------ A Where: X = the number of shares of Preferred Common Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Common Stock requested as to be which the Warrants are being exercised under this Warrant Agreement. A = the current fair market value of one (1) share of Common Stock. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (bii) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the Company's Preferred Common Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the WarrantholderHolder hereof, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 aboveon the face hereof, by tendering to the Company at its principal office a notice of exercise in the form attached annexed hereto as Exhibit I 2 (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder Holder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchasespurchase, if any. The Exercise Price may be paid at the WarrantholderHolder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder Holder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (AY(A-B) ------- ------ A Where: X = the number of shares of Preferred Stock to be issued to the WarrantholderHolder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant AgreementWarrant. A = the fair market value of one (1) share of Common Stockstock. B = the Exercise PricePrice of one (1) share of stock. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (bii) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from was paid by a willing and informed buyer (not under no compulsion to purchase to a current employee or director) for shares of Common Stock sold willing and informed seller under no compulsion to sell as such purchase was recorded by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair "market value of Common Stock shall be deemed to be the value received by the holders maker" of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereofStock.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchasesPurchases, if any. The Exercise Price may be paid at the Warrantholder's Warrantholder"s election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (AY(A-B) ------- ------ A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Stock. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Company"s Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's Company"s initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices on the principal securities exchange over a twenty-one twenty"one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) director)~ for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All AU other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (AY(A-B) ------- ------ A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Stock. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (AY(A-B) ------- A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Stock. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices on the principal securities exchange over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the CompanyCompan's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (AY(A-B) ------- ------ A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. Agreement A = the fair market value of one (1) share of Common Stock. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised afteralter, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof. Notwithstanding the foregoing, Warrantholder shall only be allowed to exercise via a Net Issuance when at least one of the following conditions is met: 1) the company is a public corporation with its securities traded on a securities exchange or traded over-the-counter; or 2) the company is subject to a merger event as defined in Section 8(a); or 3) this Warrant Agreement is due to expire within three (3) months of the date of the Warrantholder's exercise thereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (AY(A-B) ------- ------ A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Stock. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect request to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-twenty one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice acknowledgment of Exercise exercise in the form attached hereto as Exhibit II (the "Acknowledgment of Exercise") indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net IssuanceIssuances") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (AY(A-B) ------- ------ A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the current fair market value of one (11 ) share of Common StockPreferred Stock as of the date of exercise. B = the Exercise Price. As used hereinFor purposes of the above calculation, current fair market value of Common Preferred Stock shall mean with respect to each share of Common Preferred Stock: (i) if the exercise is in connection with an initial public offeringoffering of the Company's Common Stock, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the fair market value per share shall be the product of (x) the initial "Price to Public" specified in the final prospectus with respect to the offeringoffering and (y) the number of shares of Common Stock into which each share of Preferred Stock is convertible at the time of such exercise; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the product of (x) the average of the closing prices over a twenty-one ten (2110) day period ending three days before the day the current fair market value of the securities is being determineddetermined and (y) the number of shares of Common Stock into which each share of Preferred Stock is convertible at the time of such exercise; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the product of (x) the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one ten (2110) day period ending three days before the day the current fair market value of the securities is being determineddetermined and (y) the number of shares of Common Stock into which each share of Preferred Stock is convertible at the time of such exercise; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Preferred Stock shall be the product of (x) the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of DirectorsDirectors and (y) the number of shares of Common Stock into which each share of Preferred Stock is convertible at the time of such exercise, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Preferred Stock shall be deemed to be the value received by the holders of the Company's Companies Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (A-B) ------- A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholderwarrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Stock. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices on the principal securities exchange over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "“Notice of Exercise"”), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice acknowledgment of Exercise exercise in the form attached hereto as Exhibit II (the “Acknowledgment of Exercise”) indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's ’s election either (i) by cash or check, or (ii) by surrender of Warrants ("“Net Issuance"”) as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (A-B) ------- A WhereWHERE: X = the number of shares of Preferred Stock to be issued to the WarrantholderTHE NUMBER OF SHARES OF PREFERRED STOCK TO BE ISSUED TO THE WARRANTHOLDER. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. . A = the fair market value of one (1) share of Common Preferred Stock. . B = the Exercise Price. As used hereinFor purposes of the above calculation, current fair market value of Common Preferred Stock shall mean with respect to each share of Common Preferred Stock: (i) if the exercise is in connection with an initial public offeringoffering of the Company’s Common Stock, and if the Company's ’s Registration Statement relating to such public offering has been declared effective by the SEC, then the fair market value per share shall be the product of (x) the initial "“Price to Public" ” specified in the final prospectus with respect to the offeringoffering and (y) the number of shares of Common Stock into which each share of Preferred Stock is convertible at the time of such exercise; (ii) if this Warrant is exercised after, and not in connection with the Company's ’s initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the product of (x) the average of the closing prices over a twenty-one five (215) day period ending three days before the day the current fair market value of the securities is being determineddetermined and (y) the number of shares of Common Stock into which each share of Preferred Stock is convertible at the time of such exercise; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the product of (x) the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one five (215) day period ending three days before the day the current fair market value of the securities is being determineddetermined and (y) the number of shares of Common Stock into which each share of Preferred Stock is convertible at the time of such exercise; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Preferred Stock shall be the product of (x) the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of DirectorsDirectors and (y) the number of shares of Common Stock into which each share of Preferred Stock is convertible at the time of such exercise, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Preferred Stock shall be deemed to be the value received by the holders of the Company's ’s Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office this Warrant Agreement with a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of this Warrant Agreement with the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one thirty (2130) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice acknowledgment of Exercise exercise in the form attached hereto as Exhibit II (the "Acknowledgment of Exercise") indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid shall at the Warrantholder's election be paid to the Company at its principal address either (i) by cash cash, wire transfer or certified check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (AY(A-B) ------- ------ A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Stock. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, (at the Company shall promptly issue an amended Warrant Agreement representing the remaining number date of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereofcalculation).

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice acknowledgment of Exercise exercise in the form attached hereto as Exhibit II (the "Acknowledgment of Exercise") indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (AY(A-B) ------- ------ A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Preferred Stock. B = the Exercise Price. As used hereinFor purposes of the above calculation, current fair market value of Common Preferred Stock shall mean with respect to each share of Common Preferred Stock: (i) if the exercise is in connection with an initial public offeringoffering of the Company's Common Stock, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the fair market value per share shall be the product of (x) the initial "Price to Public" specified in the final prospectus with respect to the offeringoffering and (y) the number of shares of Common Stock into which each share of Preferred Stock is convertible at the time of such exercise; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the product of (x) the average of the closing prices over a twenty-one five (215) day period ending three days before the day the current fair market value of the securities is being determineddetermined and (y) the number of shares of Common Stock into which each share of Preferred Stock is convertible at the time of such exercise; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the product of (x) the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one five (215) day period ending three days before the day the current fair market value of the securities is being determineddetermined and (y) the number of shares of Common Stock into which each share of Preferred Stock is convertible at the time of such exercise; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System National Market or the over-the-the- counter market, the current fair market value of Common Preferred Stock shall be the product of (x) the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of DirectorsDirectors and (y) the number of shares of Common Stock into which each share of Preferred Stock is convertible at the time of such exercise, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Preferred Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (A-B) ------- A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Stock. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or) (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof. Notwithstanding the foregoing, Warrantholder shall only be allowed to exercise via a Net Issuance when at least one of the following conditions is met: 1) the company is a public corporation with its securities traded on a securities exchange or traded over-the-counter; or 2) the company is subject to a merger event as defined in Section 8(a); or 3) this Warrant Agreement is due to expire within three (3) months of the date of the Warrantholder's exercise thereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in partpart (but not for a fraction of a share), at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one thirty (2130) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares shams of Preferred Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price for the number of shares of Preferred Stock to be purchased by the Warrantholder may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (AY(A-B) ------- _____ A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Stock. B = the Exercise Price. As used herein, current fair market value of Common Stock as of a particular date (the "Determination Date") shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the Securities and Exchange Commission ("SEC"), then the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determinedDetermination Date; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determinedDetermination Date; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise of this Warrant by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, time or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants at the principal office of the Company ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (AY(A-B) ------- ------ A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common StockPreferred Stock (at the date of calculation). B = the Exercise PricePrice (as adjusted to the date of calculation). As used hereinFor purposes of the above calculation, current fair market value of Common Preferred Stock shall mean with respect to each share of Common Preferred Stock: (i) if the exercise is in connection with an initial public offeringoffering of the Company's Common Stock, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial fair market value per share shall be the product of (x) the "Initial Price to Public" specified in the final prospectus with respect to the offeringoffering and (y) the number of shares of Common Stock into which each share of Preferred Stock is convertible at time of such exercise; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a1) if traded on a securities exchange, the fair market value shall be deemed to be the product of (x) the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.day

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Common Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by the surrender by the Warrantholder to the Company of any promissory notes or other obligations issued by the Company, with all such notes and obligations so surrendered being credited against the Exercise Price in an amount equal to the principal amount thereof plus accrued interest to the date of surrender, (iii) by surrender of Warrants ("Net Issuance") as determined below, or (iv) by any combination of the foregoing. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Common Stock in accordance with the following formula: X = Y (AY(A-B) ------- ------ A Where: X = the number of shares of Preferred Common Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Common Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Stock. B = the Exercise PricePrice in effect under the Warrant Agreement at the time the net issue election is made pursuant to this Section 3. As used herein, current fair market value of a share of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a1) if traded on a securities exchange, the fair market value shall of the Common Stock dull be deemed to be the average of the closing prices over a twenty-one (212 1) day period ending three days before the day the current fair market value of the securities is being determined; ordetermined and the fair market value of the Common Stock shall be deemed to be such fair market value of the Common Stock: (b2) if actively traded over-the-counter, the fair market value of the Common Stock shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined;determined and the fair market value of the Common Stock shall be deemed to be such fair market value of the Common Stock; and (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, market the current fair market value of the Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless and the fair market value of the Common Stock shall be deemed to be such fair market value of the Common Stock; provided, that if the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the me surviving party, in which case the fair market value of the Common Stock shall be deemed to be the value per share of the consideration received by the holders of the Company's Preferred Common Stock on a common equivalent basis pursuant to such merger or acquisitionacquisition and the fair market value of the Common Stock shall be deemed to be such fair market value of the Common Stock. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms term and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, time or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants at the principal office of the Company ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (AX= Y(A-B) ------- ------ A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common StockPreferred Stock (at the date of calculation). B = the Exercise PricePrice (as adjusted to the date of calculation). As used hereinFor purposes of the above calculation, current fair market value of Common Preferred Stock shall mean with respect to each share of Common Preferred Stock: (i) if the exercise is in connection with an initial public offeringoffering of the Company's Common Stock, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial fair market value per share shall be the product of (x) the "Initial Price to Public" specified in the final prospectus with respect to the offeringoffering and (y) the number of shares of Common Stock into which each share of Preferred Stock is convertible at time of such exercise; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a1) if traded on a securities exchange, the fair market value shall be deemed to be the product of (x) the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.day

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Common Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by the surrender by the Warrantholder to the Company of any promissory notes or other obligations issued by the Company, with all such notes and obligations so surrendered being credited against the Exercise Price in an amount equal to the principal amount thereof plus accrued interest to the date of surrender, (iii) by surrender of Warrants ("Net Issuance") as determined below, or (iv) by any combination of the foregoing. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Common Stock in accordance with the following formula: X = Y (AY(A-B) ------- ------ A Where: X = the number of shares of Preferred Common Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Common Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Stock. B = the Exercise PricePrice in effect under the Warrant Agreement at the time the net issue election is made pursuant to this Section 3. As used herein, current fair market value of a share of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a1) if traded on a securities exchange, the fair market value of the Common Stock shall be deemed to be the average of the closing prices over a twenty-one (2121 ) day period ending three days before the day the current fair market value of the securities is being determined; ordetermined and the fair market value of the Common Stock shall be deemed to be such fair market value of the Common Stock; (b2) if actively traded over-the-counter, the fair market value of the Common Stock shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined;determined and the fair market value of the Common Stock shall be deemed to be such fair market value of the Common Stock; and (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of the Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless and the fair market value of the Common Stock shall be deemed to be such fair market value of the Common Stock; provided, that if the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of the Common Stock shall be deemed to be the value per share of the consideration received by the holders of the Company's Preferred Common Stock on a common equivalent basis pursuant to such merger or acquisitionacquisition and the fair market value of the Common Stock shall be deemed to be such fair market value of the Common Stock. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.purchasable

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, . or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed, together with payment of the Exercise price in the manner described below. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock (or other securities) purchased and shall execute the Notice an Acknowledgment of Exercise indicating the number of shares securities which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or certified or official bank check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock or Common Stock as follows: (A) prior to the earlier to occur of the IPO Effective rime (as hereinafter defined) or the Automatic Conversion Effective Time (as hereinafter defined), the Company will issue Preferred Stock in accordance with the following formula: X = Y (AY(A-B) ------- ------ A Where: X = the number of shares of Preferred Stock to be issued Issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Preferred Stock. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (AY(A-B) ------- ------ A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = Y= the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Stock. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchangeexchange or listed on NASDAQ, the fair market value shall be deemed to be the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the per share value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in In this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (AY(A-B) ------- ------ A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Stock. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchangeexchange or listed on NASDAQ, the fair market value shall be deemed to be the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the per share value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, Warrantholder in whole or in partpart (not to exceed four (4) different exercises), at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Common Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Common Stock in accordance with the following formula: X = Y (AY(A-B) ------- ------ A Where: X = the number of shares of Preferred Common Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Common Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Stock. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect to the offering; (the foregoing shall not be construed as giving the Warrantholder any right to participate in or require any such initial public offering); (ii) if this Warrant warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the Company's Preferred Common Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (AY(A-B) ------- ------ A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Stock. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such much amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (AY(A-B) ------- ------ A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Stock. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price 3 to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Common Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, check or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Common Stock in accordance with the following formula: X = Y (A-B) ------- A Where: X = the number of shares of Preferred Common Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Common Stock requested to be exercised under this Warrant Agreement. Agreement A = the fair market value of one (1) share of Common Stock. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the fair market value shall be the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offeringInitial Public Offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, market the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value per share of Common Stock received by the holders of the Company's Preferred Common Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon Upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at Notwithstanding anything to the Warrantholder's election contrary contained in Section 2 above or this Section 3, the Warrantholder shall either (i) exercise all outstanding warrants by paying to the Company, by cash or check, an amount equal to the aggregate Warrant Price of the shares being purchased, or (ii) receive shares equal to the value (as determined below) of this Warrant by surrender of Warrants ("Net Issuance") as determined below. If the Warrant at the principal office of the Company together with notice of such election in which event the Company shall issue to the Warrantholder elects the Net Issuance method, the Company will issue a number of shares of Preferred Stock in accordance with computed using the following formula: X = Y (AY(A-B) ------- ------ A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant AgreementWarrant. A = the fair market value of one (1) share of Common StockCommon. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be Stock the average of the closing prices of the Company's Common Stock sold on all securities exchanges on which the Common Stock may at the time be listed, or, if there have been no sales on any such exchange on any day, the average of the highest bid and lowest asked prices on all such exchanges at the end of such day, or, if on any day the Common Stock is not so listed, the average of the representative bid and asked prices quoted in the NASDAQ System as of 4:00 p.m., New York City time, or, if on any day the Common Stock is not quoted in the NASDAQ System, the average of the highest bid and lowest asked price on such day in the domestic over-the-counter market as reported by the National Quotation Bureau, Incorporated, or any similar successor organization, in each such case averaged over a twenty-one (21) day period ending three of 21 days before consisting of the day as of which the current fair market value of the securities Common Stock is being determined; or (b) if actively traded over-the-counter, determined and the fair market value shall be deemed 20 consecutive business days prior to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if such day. If at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Preferred Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Preferred Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its the Board of DirectorsDirectors of the Company, unless (i) the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the current fair market value of Common the Preferred Stock shall be deemed to be the value received by the holders of the Company's Series C Preferred Stock on a common equivalent basis for each share of Series C Preferred Stock (or Common Stock if all such shares have been converted into Common Stock) pursuant to the Company's acquisition; or (ii) the Warrantholder shall purchase such merger or acquisition. Upon partial exercise by either cash or Net Issuance, shares in conjunction with the Company shall promptly issue an amended Warrant Agreement representing initial underwritten public offering of the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical Company's Common Stock pursuant to those contained herein, including, but not limited to the Effective Date hereof.a registration statement filed under

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X x = Y (AY(A-B) ------- ------ A Where: X x = the number of shares of Preferred Stock to be issued to the Warrantholder. Y y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common StockCommon. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock:. (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted Closing Price on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value date of the securities is being determined;Notice of Exercise. (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "“Notice of Exercise"”), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice acknowledgment of Exercise exercise in the form attached hereto as Exhibit II (the “Acknowledgment of Exercise”) indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's ’s election either (i) by cash or check, or (ii) by surrender of Warrants ("“Net Issuance"”) as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (AY(A-B) ------- A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. . A = the fair market value of one (1) share of Common Preferred Stock. . B = the Exercise Price. As used hereinFor purposes of the above calculation, current fair market value of Common Preferred Stock shall mean with respect to each share of Common Preferred Stock: (i) if the exercise is in connection with an initial public offeringoffering of the Company’s Common Stock, and if the Company's ’s Registration Statement relating to such public offering has been declared effective by the SEC, then the fair market value per share shall be the product of (x) the initial "“Price to Public" ” specified in the final prospectus with respect to the offeringoffering and (y) the number of shares of Common Stock into which each share of Preferred Stock is convertible at the time of such exercise; (ii) if this Warrant is exercised after, and not in connection with the Company's ’s initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the product of (x) the average of the closing prices over a twenty-one five (215) day period ending three days before the day the current fair market value of the securities is being determineddetermined and (y) the number of shares of Common Stock into which each share of Preferred Stock is convertible at the time of such exercise; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the product of (x) the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one five (215) day period ending three days before the day the current fair market value of the securities is being determineddetermined and (y) the number of shares of Common Stock into which each share of Preferred Stock is convertible at the time of such exercise; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Preferred Stock shall be the product of (x) the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of DirectorsDirectors and (y) the number of shares of Common Stock into which each share of Preferred Stock is convertible at the time of such exercise, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Preferred Stock shall be deemed to be the value received by the holders of the Company's ’s Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (AY(A-B) ------- ------ A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Stock. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof. Notwithstanding the foregoing, Warrantholder shall only be allowed to exercise via a Net Issuance when at least one of the following conditions is met: 1) the company is a public corporation with its securities traded on a securities exchange or traded over-the-counter; or 2) the company is subject to a merger event as defined in Section 8(a); or 3) this Warrant Agreement is due to expire within three (3) months of the date of the Warrantholder's exercise thereof.

Exercise of the Purchase Rights. (a) The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I APPENDIX II (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one fifteen (2115) days thereafter, the Company shall instruct its transfer agent to issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if anyWarrant Shares purchased. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants all or a portion of the Warrant ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock Warrant Shares in accordance with the following formula: X = Y (AP)(A-B) ------- -------- A Where: X = the number of shares of Preferred Stock Warrant Shares to be issued to the WarrantholderWarrantholder for the portion of the Warrant being exercised. Y P = the number of shares of Preferred Stock Warrant Shares requested to be exercised under this Warrant Agreement. A = the fair market value Fair Market Value (defined below) of one (1) share of the Company's Common StockStock multiplied by the number of shares of Common Stock issuable upon conversion of one Warrant Share on this date of exercise. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Common Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Common Stock in accordance with the following formula: X = Y (AY(A-B) ------- ------ A Where: X = X= the number of shares of Preferred Common Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Common Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Stock. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the fair market value shall be the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offeringInitial Public Offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock stock shall be deemed to be the value per share of Common Stock received by the holders of the Company's Preferred Common Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (AY(A-B) ------- ------ A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Stock. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased purchase and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by the surrender by the Warrantholder to the Company of any promissory notes or other obligations issued by the Company, with all such notes and obligations so surrendered being credited against the Exercise Price in an amount equal to the principal amount thereof plus accrued interest to the date of surrender, (iii) by surrender of Warrants ("Net Issuance") as determined below, or (iv) by any combination of the foregoing. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock (or Common Stock if the Preferred Stock has been automatically converted into Common Stock) in accordance with the following formula: X = Y (AY(A-B) ------- ------ A Where: X = the number of shares of Preferred Stock (or Common Stock) to be issued to the Warrantholder. Y = the number of shares of Preferred Stock (or Common Stock) requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Preferred Stock (or Common Stock). B = the Exercise PricePrice in effect under the Warrant Agreement at the time the net issue election is made pursuant to this Section 3. As used herein, current fair market value of a share of Preferred Stock (or Common Stock if the Preferred Stock has been automatically converted into Common Stock) shall mean with respect to each share of Preferred Stock (or Common Stock:): (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect to the offeringoffering multiplied by the number of shares of Common Stock into which each share of Preferred Stock is then convertible; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a1) if traded on a securities exchange, the fair market value of the Common Stock shall be deemed to be the average of the closing prices over a twenty-one (212 1) day period ending three days before the day the current fair market value of the securities is being determineddetermined and the fair market value of the Preferred Stock shall be deemed to be such fair market value of the Common Stock multiplied by the number of shares of Common Stock into which each share of Preferred Stock is then convertible; or (b2) if actively traded over-the-counter, the fair market value of the Common Stock shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined;determined and the fair market value of the Preferred Stock shall be deemed to be such fair market value of the Common Stock multiplied by the number of shares of Common Stock into which each share of Preferred Stock is then convertible; and (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of the Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless and the fair market value of the Preferred Stock shall be deemed to be such fair market value of the Common Stock multiplied by the number of shares of Common Stock into which each share of Preferred Stock is then convertible; provided, that if the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of the Common Stock shall be deemed to be the value per share of the consideration received by the holders of the Company's Preferred Common Stock on a common equivalent basis pursuant to such merger or acquisitionacquisition and the fair market value of the Preferred Stock shall be deemed to be such fair market value of the Common Stock multiplied by the number of shares of Common Stock into which each share of Preferred Stock is then convertible. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice acknowledgment of Exercise exercise in the form attached hereto as Exhibit II (the "Acknowledgment of Exercise") indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (AY(A-B) ------- A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Preferred Stock. B = the Exercise Price. As used hereinFor purposes of the above calculation, current fair market value of Common Preferred Stock shall mean with respect to each share of Common Preferred Stock: (i) if the exercise is in connection with an initial public offeringoffering of the Company's Common Stock, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the fair market value per share shall be the product of (x) the initial "Price to Public" specified in the final prospectus with respect to the offeringoffering and (y) the number of shares of Common Stock into which each share of Preferred Stock is convertible at the time of such exercise; (ii) if this Warrant is exercised after, and not in connection with the Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the product of (x) the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determineddetermined and (y) the number of shares of Common Stock into which each share of Preferred Stock is convertible at the time of such exercise; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the product of (x) the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determineddetermined and (y) the number of shares of Common Stock into which each share of Preferred Stock is convertible at the time of such exercise; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Preferred Stock shall be the product of (x) the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of DirectorsDirectors and (y) the number of shares of Common Stock into which each share of Preferred Stock is convertible at the time of such exercise, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Preferred Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.

Exercise of the Purchase Rights. The purchase rights set forth in this Warrant Agreement are exercisable by the Warrantholder, in whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2 above, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as Exhibit I (the "Notice of Exercise"), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the purchase price in accordance with the terms set forth below, and in no event later than twenty-one (21) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of shares of Preferred Stock purchased and shall execute the Notice of Exercise indicating the number of shares which remain subject to future purchases, if any. The Exercise Price may be paid at the Warrantholder's election either (i) by cash or check, or (ii) by surrender of Warrants ("Net Issuance") as determined below. If the Warrantholder elects the Net Issuance method, the Company will issue Preferred Stock in accordance with the following formula: X = Y (AY(A-B) ------- ------ A Where: X = the number of shares of Preferred Stock to be issued to the Warrantholder. Y = the number of shares of Preferred Stock requested to be exercised under this Warrant Agreement. A = the fair market value of one (1) share of Common Stock. B = the Exercise Price. As used herein, current fair market value of Common Stock shall mean with respect to each share of Common Stock: (i) if the exercise is in connection with an initial public offering, and if the Company's Registration Statement relating to such public offering has been declared effective by the SEC, then the initial "Price to Public" specified in the final prospectus with respect to the offering; (ii) if this Warrant is exercised after, and not in connection with the 3 Company's initial public offering, and: (a) if traded on a securities exchange, the fair market value shall be deemed to be the average of the closing prices over a twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; or (b) if actively traded over-the-counter, the fair market value shall be deemed to be the average of the closing bid and asked prices quoted on the NASDAQ system (or similar system) over the twenty-one (21) day period ending three days before the day the current fair market value of the securities is being determined; (iii) if at any time the Common Stock is not listed on any securities exchange or quoted in the NASDAQ System or the over-the-counter market, the current fair market value of Common Stock shall be the highest price per share which the Company could obtain from a willing buyer (not a current employee or director) for shares of Common Stock sold by the Company, from authorized but unissued shares, as determined in good faith by its Board of Directors, unless the Company shall become subject to a merger, acquisition or other consolidation pursuant to which the Company is not the surviving party, in which case the fair market value of Common Stock shall be deemed to be the value received by the holders of the Company's Preferred Stock on a common equivalent basis pursuant to such merger or acquisition. Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Warrant Agreement representing the remaining number of shares purchasable hereunder. All other terms and conditions of such amended Warrant Agreement shall be identical to those contained herein, including, but not limited to the Effective Date hereof.