Contract

Exhibit 10.55

EXECUTION VERSION

THIS WARRANT AND THE UNDERLYING SECURITIES HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “ACT”), OR UNDER THE SECURITIES LAWS OF ANY STATE. THESE SECURITIES MAY NOT BE OFFERED, SOLD OR OTHERWISE TRANSFERRED, PLEDGED OR HYPOTHECATED EXCEPT AS PERMITTED UNDER THE ACT AND APPLICABLE STATE SECURITIES LAWS IN ACCORDANCE WITH APPLICABLE REGISTRATION REQUIREMENTS OR AN EXEMPTION THEREFROM. THE ISSUER OF THESE SECURITIES MAY REQUIRE AN OPINION OF COUNSEL REASONABLY SATISFACTORY TO THE ISSUER THAT SUCH OFFER, SALE, TRANSFER, PLEDGE OR HYPOTHECATION OTHERWISE COMPLIES WITH THE ACT AND ANY APPLICABLE STATE SECURITIES LAWS. THIS WARRANT MUST BE SURRENDERED TO THE COMPANY OR ITS TRANSFER AGENT AS A CONDITION PRECEDENT TO THE SALE, TRANSFER, PLEDGE OR HYPOTHECATION OF ANY INTEREST IN ANY OF THE SECURITIES REPRESENTED HEREBY.

REPLACEMENT

WARRANT TO PURCHASE SHARES OF COMMON STOCK OF

T2 BIOSYSTEMS, INC.

Dated as of March 13, 2019

Void after the date specified in Section 8

Warrant to Purchase 14,441 Shares of Common Stock (subject to adjustment)

WHEREAS, T2 BIOSYSTEMS, INC., a Delaware corporation (the “Company”), issued to CRG PARTNERS III (CAYMAN) L.P. (the “Previous Holder”) a warrant, dated as of December 30, 2016 (the “Existing Warrant”), for shares of the Company’s common stock, par value $0.001 per share (the “Shares”) in the amount of 192,541 Shares in connection with the transactions described in the Term Loan Agreement, dated as of December 30, 2016 (as amended, supplemented or otherwise modified from time to time, the “Term Loan Agreement”), by and between the Company, the Subsidiary Guarantors from time to time party thereto, the Lenders from time to time party thereto and CRG Servicing LLC; and

WHEREAS, in connection with an amendment and waiver to the Term Loan Agreement, dated as of the date hereof, (i) the Previous Holder will assign the Existing Warrant to (x) with respect to 14,441 Shares, CRG PARTNERS III (CAYMAN) UNLEV AIV I L.P., or its registered assigns (the “Holder”) pursuant to this Warrant and (y) with respect to 178,100 Shares, CRG PARTNERS III (CAYMAN) LEV AIV L.P. (“Lev”) pursuant to the warrant, dated as of the date hereof (the “Lev Warrant”), issued by the Company to Lev and (ii) the Company and the Holder have agreed to adjust the Exercise Price (as defined below).

NOW, THEREFORE, THIS CERTIFIES THAT, for value received, the Holder is entitled, subject to the provisions and upon the terms and conditions set forth herein, to purchase Shares from the Company in the amounts, at such times and at the price per share set forth in Section 1. The term “Warrant” as used herein shall include this Warrant and any warrants delivered in substitution or exchange therefor as provided herein.

The following is a statement of the rights of the Holder and the conditions to which this Warrant is subject, and to which Holder, by acceptance of this Warrant, agrees:

1.Number and Price of Shares; Exercise Period.

(a)Number of Shares. Subject to any previous exercise of the Warrant, the Holder shall have the right to purchase up to 14,441 Shares, as may be adjusted pursuant hereto prior to (or in connection with) the expiration of this Warrant as provided in Section 8.

200321000 v3

(b)Exercise Price. The exercise price per Share shall be equal to $4.35, subject to adjustment pursuant hereto (the “Exercise Price”).

(c)Exercise Period. This Warrant shall be exercisable, in whole or in part, prior to (or in connection with) the expiration of this Warrant as set forth in Section 8.

Exercise of the Warrant.

(a)Exercise. The purchase rights represented by this Warrant may be exercised at the election of the Holder, in whole or in part, in accordance with Section 1, by:

(i)the tender to the Company at its principal office (or such other office or agency as the Company may designate) of a notice of exercise in the form of Exhibit A (the “Notice of Exercise”), duly completed and executed by or on behalf of the Holder, together with the surrender of this Warrant; and

(ii)the payment to the Company of an amount equal to (x) the Exercise Price multiplied by (y) the number of Shares being purchased, by wire transfer or certified, cashier’s or other check acceptable to the Company and payable to the order of the Company.

(b)Net Issue Exercise. In lieu of exercising this Warrant pursuant to Section 2(a)(ii), if the fair market value of one Share is greater than the Exercise Price (at the date of calculation as set forth below), the Holder may elect to receive a number of Shares equal to the value of this Warrant (or of any portion of this Warrant being canceled) by surrender of this Warrant at the principal office of the Company (or such other office or agency as the Company may designate) together with a properly completed and executed Notice of Exercise reflecting such election, in which event the Company shall issue to the Holder that number of Shares computed using the following formula:

= Y (A – B) A

Where:

X =The number of Shares to be issued to the Holder

Y =

The number of Shares purchasable under this Warrant or, if only a portion of the Warrant is being exercised, the portion of the Warrant being canceled (at the date of such calculation)

A =The fair market value of one Share (at the date of such calculation) B=The Exercise Price (as adjusted to the date of such calculation)

For purposes of the calculation above, the fair market value of one Share shall be determined as follows:

(i)if the Shares are traded on any securities exchange or quoted on an established automated over-the-counter market, the fair market value shall be deemed to be the average of the closing prices over a ten (10) Trading Day period ending five (5) Trading Days before the date of calculation; or

(ii)if at any time the Common Stock is not listed on any securities exchange or quoted on an established automated over-the-counter market, the fair market value of Common Stock shall be the 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 Reorganization, in which case the fair market value of the Common Stock shall be deemed to be the per share value received by the holders of the Company’s Common Stock pursuant to such Reorganization.

200321000 v3

For purposes hereof, the date of calculation shall be the date the Holder sends to the Company a Notice of Exercise. “Trading Day” means a day in which trading in the Shares generally occurs on The Nasdaq Global Market or if the Shares are not then listed on The Nasdaq Global Market, on the principal other U.S. national or regional securities exchange on which the Shares are then listed, or if the Shares are not then listed on a U.S. national or regional securities exchange, on the principal other market on which the Shares are then traded. If the Shares are not so listed or traded, “Trading Day” means any Business Day. “Business Day” means any day other than a Saturday, a Sunday or a day on which the Federal Reserve Bank of New York is authorized or required by law or executive order to close or be closed.

(c)Exercise Prior to Expiration or Change of Control. To the extent this Warrant is not previously exercised as to all Shares subject hereto, and if the fair market value of one Share is greater than the Exercise Price then in effect, this Warrant shall be deemed automatically exercised pursuant to Section 2(b) (even if not surrendered) immediately before its expiration or termination pursuant to Section 8(b) below. For purposes of such automatic exercise, the fair market value of one Share upon such expiration shall be determined pursuant to Section 2(b). To the extent this Warrant or any portion thereof is deemed automatically exercised pursuant to this Section 2(c), the Company agrees to promptly notify the Holder of the number of shares of Common Stock, if any, the Holder is to receive by reason of such automatic exercise.

(d)Stock Certificates. The rights under this Warrant shall be deemed to have been exercised and the Shares issuable upon such exercise shall be deemed to have been issued immediately prior to the close of business on the date this Warrant is exercised in accordance with its terms, and the person entitled to receive the Shares issuable upon such exercise shall be treated for all purposes as the holder of record of such Shares as of the close of business on such date. As promptly as reasonably practicable on or after such date, the Company shall issue and deliver to the person or persons entitled to receive the same a certificate or certificates (or other reasonably acceptable evidence of issuance if the Company ordinarily registers uncertificated book-entry positions with its transfer agent) for that number of shares issuable upon such exercise. In the event that the rights under this Warrant are exercised in part and have not expired, the Company shall execute and deliver a new Warrant reflecting the number of Shares that remain subject to this Warrant.

(e)No Fractional Shares or Scrip. No fractional shares or scrip representing fractional shares shall be issued upon the exercise of the rights under this Warrant. In lieu of such fractional share to which the Holder would otherwise be entitled, the Company shall make a cash payment equal to the Exercise Price multiplied by such fraction.

(f)Conditional Exercise. The Holder may exercise this Warrant conditioned upon (and effective immediately prior to) consummation of any transaction that would cause the expiration of this Warrant pursuant to Section 8 by so indicating in the notice of exercise.

(g)Reservation of Stock. The Company agrees during the term the rights under this Warrant are exercisable to reserve and keep available from its authorized and unissued shares of common stock of the Company for the purpose of effecting the exercise of this Warrant such number of shares as shall from time to time be sufficient to effect the exercise of the rights under this Warrant; and if at any time the number of authorized but unissued shares of common stock shall not be sufficient for purposes of the exercise of this Warrant in accordance with its terms, without limitation of such other remedies as may be available to the Holder, the Company will use all reasonable efforts to take such corporate action as may be necessary to increase its authorized and unissued shares of common stock of the Company to a number of shares as shall be sufficient for such purposes. The Company represents and warrants that all shares that may be issued upon the exercise of this Warrant will, when issued in accordance with the terms hereof, including the proper exercise of this Warrant, be validly issued, fully paid and nonassessable.

(h)Issued Securities. The Company represents and warrants to the Holder that all issued and outstanding shares of common stock or any other securities of the Company have been duly authorized and that all outstanding shares of common stock of the Company have been validly issued and are fully paid and nonassessable. All outstanding shares of common stock and any other securities were issued in full compliance with all federal and state securities laws. In addition, as of March 8, 2019:

200321000 v3

(i)The authorized capital of the Company consists of (A) 200,000,000 shares of common stock, of which 44,320,048 shares are issued and outstanding, and (B) 10,000,000 shares of preferred stock, of which no shares are issued and outstanding.

(ii)The Company has reserved 4,462,779 shares of its common stock for issuance under its stock incentive plans, under which (i) 4,243,732 shares are issuable upon the exercise of stock options outstanding on the date hereof and (ii) up to 1,131,218 shares are issuable under awards of restricted stock units outstanding on the date hereof. The Company has also reserved 809,323 shares of its common stock for issuance pursuant to the Company’s employee stock purchase plan. Except as stated above and except for the warrant issued to the Holder pursuant to this Warrant and the other warrants issued on the date hereof in connection with the Term Loan Agreement, there are no other options, warrants, conversion privileges or other rights presently outstanding to purchase or otherwise acquire any authorized but unissued shares of the Company’s capital stock or other securities of the Company.

3.Replacement of the Warrant. Subject to the receipt of evidence reasonably satisfactory to the Company of the loss, theft, destruction or mutilation of this Warrant and, in the case of loss, theft or destruction, on delivery of an indemnity agreement reasonably satisfactory in form and substance to the Company or, in the case of mutilation, on surrender and cancellation of this Warrant, the Company at the expense of the Holder shall execute and deliver, in lieu of this Warrant, a new warrant of like tenor and amount.

Transfer of the Warrant.

(a)Warrant Register. The Company shall maintain a register (the “Warrant Register”) containing the name and address of the Holder or Holders. Until this Warrant is transferred on the Warrant Register in accordance herewith, the Company may treat the Holder as shown on the Warrant Register as the absolute owner of this Warrant for all purposes, notwithstanding any notice to the contrary. Any Holder of this Warrant (or of any portion of this Warrant) may change its address as shown on the Warrant Register by written notice to the Company requesting a change.

(b)Warrant Agent. The Company may appoint an agent for the purpose of maintaining the Warrant Register referred to in Section 4(a), issuing the Shares or other securities then issuable upon the exercise of the rights under this Warrant, exchanging this Warrant, replacing this Warrant or conducting related activities.

(c)Transferability of the Warrant. Subject to the provisions of this Warrant with respect to compliance with the Securities Act of 1933, as amended (the “Securities Act”) as set forth in Section 5, title to this Warrant may be transferred by endorsement (by the transferor and the transferee executing the assignment form attached as Exhibit B (the “Assignment Form”)) and delivery in the same manner as a negotiable instrument transferable by endorsement and delivery.

(d)Exchange of the Warrant upon a Transfer. On surrender of this Warrant (and a properly endorsed Assignment Form) for exchange, subject to the provisions of this Warrant with respect to compliance with the Securities Act and limitations on assignments and transfers, the Company shall issue to or on the order of the Holder a new warrant or warrants of like tenor, in the name of the Holder or as the Holder (on payment by the Holder of any applicable transfer taxes) may direct, for the number of shares issuable upon exercise hereof, and the Company shall register any such transfer upon the Warrant Register. This Warrant (and the securities issuable upon exercise of the rights under this Warrant) must be surrendered to the Company or its warrant or transfer agent, as applicable, as a condition precedent to the sale, pledge, hypothecation or other transfer of any interest in any of the securities represented hereby.

(e)Taxes. In no event shall the Company be required to pay any tax which may be payable in respect of any transfer involved in the issue and delivery of any certificate in a name other than that of the Holder, and the Company shall not be required to issue or deliver any such certificate unless and until the person or persons requesting the issue thereof shall have paid to the Company the amount of such tax or shall have established to the satisfaction of the Company that such tax has been paid or is not payable.

200321000 v3

5.Compliance with Securities Laws. By acceptance of this Warrant, the Holder agrees to comply with the following:

(a)Restrictions on Transfers. Any transfer of this Warrant or the Shares (the “Securities”) must be in compliance with all applicable federal and state securities laws. The Holder agrees not to make any sale, assignment, transfer, pledge or other disposition of all or any portion of the Securities, or any beneficial interest therein, unless and until the transferee thereof has agreed in writing for the benefit of the Company to take and hold such Securities subject to, and to be bound by, the terms and conditions set forth in this Warrant to the same extent as if the transferee were the original Holder hereunder, and

(i)there is then in effect a registration statement under the Securities Act covering such proposed disposition and such disposition is made in accordance with such registration statement, or

(ii)(A) such Holder shall have given prior written notice to the Company of such Holder’s intention to make such disposition and shall have furnished the Company with a reasonable detailed description of the manner and circumstances of the proposed disposition, (B) the transferee shall have made the representations set forth in Section 10 with respect to itself as a Holder and (C) if requested by the Company, such Holder shall have furnished the Company, at the Holder’s expense, with (i) evidence reasonably satisfactory to the Company that such disposition will not require registration of such Securities under the Securities Act or (ii) a legal opinion to the effect that the transfer of such Securities may be effected in compliance with the terms of the Securities Act. Notwithstanding the foregoing, compliance with clauses (B) and (C) above shall not be required for any transfer in compliance with Rule 144 or compliance with clause (C) above shall not be required for any transfer by the Holder to any affiliate of the Holder (or any fund or partnership under common control with one of more general partners or managing members of, or shares the same management company with, the Holder) or a transfer by the Holder to any of the Holder’s partners, members or other equity owners, or retired partners, members or other equity owners or the estate of any partners, members or other equity owners or retired partners, members or other equity owners.

(b)Investment Representation Statement. Unless the rights under this Warrant are exercised pursuant to an effective registration statement under the Securities Act that includes the Shares with respect to which the Warrant was exercised or pursuant to Section 2(b) that results in the Shares issued upon exercise being eligible for resale under Rule 144, it shall be a condition to any exercise of the rights under this Warrant that the Holder shall have confirmed the representations set forth in Section 10 hereof.

(c)Securities Law Legend. Subject to Section 5(e), the Securities shall (unless otherwise permitted by the provisions of this Warrant) be stamped or imprinted with a legend substantially similar to the following (in addition to any legend required by state securities laws):

THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “ACT”), OR UNDER THE SECURITIES LAWS OF CERTAIN STATES. THESE SECURITIES MAY NOT BE OFFERED, SOLD OR OTHERWISE TRANSFERRED, PLEDGED OR HYPOTHECATED EXCEPT AS PERMITTED UNDER THE ACT AND APPLICABLE STATE SECURITIES LAWS IN ACCORDANCE WITH APPLICABLE REGISTRATION REQUIREMENTS OR AN EXEMPTION THEREFROM. THE ISSUER OF THESE SECURITIES MAY REQUIRE AN OPINION OF COUNSEL REASONABLY SATISFACTORY TO THE ISSUER THAT SUCH OFFER, SALE OR TRANSFER, PLEDGE OR HYPOTHECATION OTHERWISE COMPLIES WITH THE ACT AND ANY APPLICABLE STATE SECURITIES LAWS. THIS CERTIFICATE MUST BE SURRENDERED TO THE COMPANY OR ITS TRANSFER AGENT AS A CONDITION PRECEDENT TO THE SALE, TRANSFER, PLEDGE OR HYPOTHECATION OF ANY INTEREST IN ANY OF THE SECURITIES REPRESENTED HEREBY.

(d)Instructions Regarding Transfer Restrictions. Subject to Section 5(e), the Holder consents to the Company making a notation on its records and giving instructions to any transfer agent in order to implement the restrictions on transfer established in this Section 5.

(e)

Removal of Legend. The legend referring to federal and state securities laws identified in

200321000 v3

Section 5(c) stamped on a certificate evidencing the Shares and the stock transfer instructions and record notations with respect to such securities shall be removed promptly upon request by the Holder and the Company shall issue a certificate without such legend to the holder of such securities if (i) such securities are registered under the Securities Act, (ii) such securities are eligible for resale under Rule 144, or (iii) such holder provides the Company with an opinion of counsel reasonably acceptable to the Company to the effect that a sale or transfer of such securities may be made without registration or qualification.

(f)Compliance with Securities Laws. The Holder is aware of the restrictions imposed by the United States securities laws on the purchase or sale of securities by any person who has received material, non- public information from the issuer of such securities and on the communication of such information to any other person when it is reasonably foreseeable that such other person is likely to purchase or sell such securities in reliance upon such information.

6.Adjustments. Subject to the expiration of this Warrant pursuant to Section 8, the number and kind of shares purchasable hereunder and the Exercise Price therefor are subject to adjustment from time to time, as follows:

(a)Merger or Reorganization. If at any time there shall be any reorganization, recapitalization, merger or consolidation (a “Reorganization”) involving the Company (other than as otherwise provided for herein or as would cause the expiration of this Warrant under Section 8) in which shares of the Company’s stock are converted into or exchanged for securities, cash or other property, then, as a part of such Reorganization, lawful provision shall be made so that the Holder shall thereafter be entitled to receive upon exercise of this Warrant, the kind and amount of securities, cash or other property of the successor corporation resulting from such Reorganization (collectively, “Reference Property”), equivalent in value to that which a holder of the Shares deliverable upon exercise of this Warrant would have been entitled in such Reorganization if the right to purchase the Shares hereunder had been exercised immediately prior to such Reorganization. In any such case, appropriate adjustment (as determined in good faith by the Board of Directors of the successor corporation) shall be made in the application of the provisions of this Warrant with respect to the rights and interests of the Holder after such Reorganization to the end that the provisions of this Warrant shall be applicable after the event, as near as reasonably may be, in relation to any shares or other securities deliverable after that event upon the exercise of this Warrant. Without limiting the foregoing, in connection with any Reorganization, upon the closing thereof, the successor or surviving entity shall assume the obligations of this Agreement. The provisions of this Section 6(a) shall similarly apply to successive Reorganizations.

(b)Reclassification of Shares. If the securities issuable upon exercise of this Warrant are changed into the same or a different number of securities of any other class or classes by reclassification, capital reorganization or otherwise (other than as otherwise provided for herein) (a “Reclassification”), then, in any such event, in lieu of the number of Shares which the Holder would otherwise have been entitled to receive, the Holder shall have the right thereafter to exercise this Warrant for a number of shares of such other class or classes of stock that a holder of the number of securities deliverable upon exercise of this Warrant immediately before that change would have been entitled to receive in such Reclassification, all subject to further adjustment as provided herein with respect to such other shares.

(c)Subdivisions and Combinations. In the event that the outstanding shares of common stock are subdivided (by stock split, by payment of a stock dividend or otherwise) into a greater number of shares of such securities, the number of Shares issuable upon exercise of the rights under this Warrant immediately prior to such subdivision shall, concurrently with the effectiveness of such subdivision, be proportionately increased, and the Exercise Price shall be proportionately decreased, and in the event that the outstanding shares of common stock are combined (by reclassification or otherwise) into a lesser number of shares of such securities, the number of Shares issuable upon exercise of the rights under this Warrant immediately prior to such combination shall, concurrently with the effectiveness of such combination, be proportionately decreased, and the Exercise Price shall be proportionately increased.

(d)Notice of Adjustments. Upon any adjustment in accordance with this Section 6, the Company shall give notice thereof to the Holder, which notice shall state the event giving rise to the adjustment, the Exercise Price as adjusted and the number of securities or other property purchasable upon the exercise of the rights under this Warrant, setting forth in reasonable detail the method of calculation of each. The Company shall, upon the

200321000 v3

written request of any Holder, furnish or cause to be furnished to such Holder a certificate setting forth (i) such adjustments, (ii) the Exercise Price at the time in effect and (iii) the number of securities and the amount, if any, of other property that at the time would be received upon exercise of this Warrant.

7.Notification of Certain Events. Prior to the expiration of this Warrant pursuant to Section 8, in the event that the Company shall authorize:

(a)the issuance of any dividend or other distribution on the capital stock of the Company (other than (i) dividends or distributions otherwise provided for in Section 6, (ii) repurchases of common stock issued to or held by employees, officers, directors or consultants of the Company or its subsidiaries upon termination of their employment or services pursuant to agreements providing for the right of said repurchase; (iii) repurchases of common stock issued to or held by employees, officers, directors or consultants of the Company or its subsidiaries pursuant to rights of first refusal or first offer contained in agreements providing for such rights; or (iv) repurchases of capital stock of the Company in connection with the settlement of disputes with any stockholder ), whether in cash, property, stock or other securities;

(b)

the voluntary liquidation, dissolution or winding up of the Company; or

(c)

any transaction resulting in the expiration of this Warrant pursuant to Section 8(b);

the Company shall send to the Holder of this Warrant at least ten (10) calendar days prior written notice of the date on which a record shall be taken for any such dividend or distribution specified in clause (a) or the expected effective date of any such other event specified in clause (b) or (c), as applicable. The notice provisions set forth in this section may be shortened or waived prospectively or retrospectively by the consent of the Holder of this Warrant.

8.Expiration of the Warrant. This Warrant shall expire and shall no longer be exercisable as of the earlier of:

(a)5:00 p.m., Pacific time, on December 30, 2026; or

(b)(i) the acquisition of the Company by another entity by means of any transaction or series of related transactions to which the Company is a party (including, without limitation, any stock acquisition, reorganization, merger or consolidation, but excluding any sale of stock for capital raising purposes and any transaction effected primarily for purposes of changing the Company’s jurisdiction of incorporation) other than a transaction or series of related transactions in which the holders of the voting securities of the Company outstanding immediately prior to such transaction or series of related transactions receive voting securities of such other surviving or resulting entity (or if the Company or such other surviving or resulting entity is a wholly-owned subsidiary immediately following such acquisition, its parent), or (ii) a sale, lease or other disposition of all or substantially all of the assets of the Company and its subsidiaries taken as a whole by means of any transaction or series of related transactions, except where such sale, lease or other disposition is to a wholly-owned subsidiary of the Company.

9.No Rights as a Stockholder. Nothing contained herein shall entitle the Holder to any rights as a stockholder of the Company or to be deemed the holder of any securities that may at any time be issuable on the exercise of the rights hereunder for any purpose nor shall anything contained herein be construed to confer upon the Holder, as such, any right to vote for the election of directors or upon any matter submitted to stockholders at any meeting thereof, or to give or withhold consent to any corporate action (whether upon any recapitalization, issuance of stock, reclassification of stock, change of par value or change of stock to no par value, consolidation, merger, conveyance or otherwise) or to receive notice of meetings, or to receive dividends or subscription rights or any other rights of a stockholder of the Company until the rights under the Warrant shall have been exercised and the Shares purchasable upon exercise of the rights hereunder shall have become deliverable as provided herein.

10.Representations and Warranties of the Holder. By acceptance of this Warrant, the Holder represents and warrants to the Company as follows:

200321000 v3

(a)No Registration. The Holder understands that the Securities have not been, and will not be, registered under the Securities Act by reason of a specific exemption from the registration provisions of the Securities Act, the availability of which depends upon, among other things, the bona fide nature of the investment intent and the accuracy of the Holder’s representations as expressed herein or otherwise made pursuant hereto.

(b)Investment Intent. The Holder is acquiring the Securities for investment for its own account, not as a nominee or agent, and not with a view to, or for resale in connection with, any distribution thereof. The Holder has no present intention of selling, granting any participation in, or otherwise distributing the Securities, nor does it have any contract, undertaking, agreement or arrangement for the same.

(c)Investment Experience. The Holder has substantial experience in evaluating and investing in private placement transactions of securities in companies similar to the Company, and has such knowledge and experience in financial or business matters so that it is capable of evaluating the merits and risks of its investment in the Company and protecting its own interests.

(d)Speculative Nature of Investment. The Holder understands and acknowledges that its investment in the Company is highly speculative and involves substantial risks. The Holder can bear the economic risk of its investment and is able, without impairing its financial condition, to hold the Securities for an indefinite period of time and to suffer a complete loss of its investment.

(e)Accredited Investor. The Holder is an “accredited investor” within the meaning of Regulation D, Rule 501(a), promulgated by the Securities and Exchange Commission and agrees to submit to the Company such further assurances of such status as may be reasonably requested by the Company. The Holder has furnished or made available any and all information requested by the Company or otherwise necessary to satisfy any applicable verification requirements as to “accredited investor” status. Any such information is true, correct, timely and complete.

(f)Residency. The residency of the Holder (or, in the case of a partnership or corporation, such entity’s principal place of business) is correctly set forth on the signature page hereto.

(g)Restrictions on Resales. The Holder acknowledges that the Securities must be held indefinitely unless subsequently registered under the Securities Act or an exemption from such registration is available. The Holder is aware of the provisions of Rule 144 promulgated under the Securities Act, which permit resale of shares purchased in a private placement subject to the satisfaction of certain conditions, which may include, among other things, the availability of certain current public information about the Company; the resale occurring not less than a specified period after a party has purchased and paid for the security to be sold; the number of shares being sold during any three-month period not exceeding specified limitations; the sale being effected through a “broker’s transaction,” a transaction directly with a “market maker” or a “riskless principal transaction” (as those terms are defined in the Securities Act or the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder); and the filing of a Form 144 notice, if applicable. The Holder acknowledges and understands that the Company may not be satisfying the current public information requirement of Rule 144 at the time the Holder wishes to sell the Securities and that, in such event, the Holder may be precluded from selling the Securities under Rule 144 even if the other applicable requirements of Rule 144 have been satisfied. The Holder acknowledges that, in the event the applicable requirements of Rule 144 are not met, registration under the Securities Act or an exemption from registration will be required for any disposition of the Securities. The Holder understands that, although Rule 144 is not exclusive, the Securities and Exchange Commission has expressed its opinion that persons proposing to sell restricted securities received in a private offering other than in a registered offering or pursuant to Rule 144 will have a substantial burden of proof in establishing that an exemption from registration is available for such offers or sales and that such persons and the brokers who participate in the transactions do so at their own risk.

(h)Authorization. The Holder has full legal capacity, power and authority to execute and deliver this Warrant and to perform its obligations hereunder. This Warrant constitutes the valid and binding obligations of the Holder, enforceable in accordance with its terms, except as limited by bankruptcy, insolvency or other laws of general application relating to or affecting the enforcement of creditors’ rights generally and general principles of equity.

200321000 v3

11.

Miscellaneous.

(a)Amendments. Except as expressly provided herein, neither this Warrant nor any term hereof may be amended, waived, discharged or terminated other than by a written instrument referencing this Warrant and signed by the Company and the Holder of this Warrant.

(b)Waivers. No waiver of any single breach or default shall be deemed a waiver of any other breach or default theretofore or thereafter occurring.

(c)Notices. All notices and other communications required or permitted hereunder shall be in writing and shall be mailed by registered or certified mail, postage prepaid, sent by facsimile or electronic mail (if to the Holder) or otherwise delivered by hand, messenger or courier service addressed:

(i)if to the Holder, to the Holder at the Holder’s address, facsimile number or electronic mail address as shown in the Company’s records, as may be updated in accordance with the provisions hereof, or until any such Holder so furnishes an address, facsimile number or electronic mail address to the Company, then to and at the address, facsimile number or electronic mail address of the last holder of this Warrant for which the Company has contact information in its records; or

(ii)if to the Company, to the attention of the Chief Executive Officer or Chief Financial Officer of the Company at the Company’s address as shown on the signature page hereto, or at such other current address as the Company shall have furnished to the Holder.

Each such notice or other communication shall for all purposes of this Warrant be treated as effective or having been given (i) if delivered by hand, messenger or courier service, when delivered (or if sent via a nationally-recognized overnight courier service, freight prepaid, specifying next-business-day delivery, one business day after deposit with the courier), or (ii) if sent via mail, at the earlier of its receipt or five days after the same has been deposited in a regularly-maintained receptacle for the deposit of the United States mail, addressed and mailed as aforesaid, or (iii) if sent via facsimile, upon confirmation of facsimile transfer or, if sent via electronic mail, upon confirmation of delivery when directed to the relevant electronic mail address, if sent during normal business hours of the recipient, or if not sent during normal business hours of the recipient, then on the recipient’s next business day. In the event of any conflict between the Company’s books and records and this Warrant or any notice delivered hereunder, the Company’s books and records will control absent fraud or error.

(d)Governing Law. This Warrant and all actions arising out of or in connection with this Warrant shall be governed by and construed in accordance with the laws of the State of Delaware, without regard to the conflicts of law provisions of the State of Delaware, or of any other state.

(e)Jurisdiction and Venue. The Company agrees that any suit, action or proceeding with respect to this Agreement or any other Loan Document to which it is a party or any judgment entered by any court in respect thereof may be brought initially in the federal or state courts in Houston, Texas or in the courts of its own corporate domicile and irrevocably submits to the non-exclusive jurisdiction of each such court for the purpose of any such suit, action, proceeding or judgment. This Section 11(e) is for the benefit of the Holder only and, as a result, Holder shall not be prevented from taking proceedings in any other courts with jurisdiction. Nothing herein shall in any way be deemed to limit the ability of the Holder to serve any such process or summonses in any other manner permitted by applicable law. The Company irrevocably waives to the fullest extent permitted by law any objection that it may now or hereafter have to the laying of the venue of any suit, action or proceeding arising out of or relating to this Warrant and hereby further irrevocably waives to the fullest extent permitted by law any claim that any such suit, action or proceeding brought in any such court has been brought in an inconvenient forum. A final judgment (in respect of which time for all appeals has elapsed) in any such suit, action or proceeding shall be conclusive and may be enforced in any court to the jurisdiction of which the Company is or may be subject, by suit upon judgment.

(f)Titles and Subtitles. The titles and subtitles used in this Warrant are used for convenience only and are not to be considered in construing or interpreting this Warrant. All references in this Warrant to sections, paragraphs and exhibits shall, unless otherwise provided, refer to sections and paragraphs hereof and exhibits

200321000 v3

attached hereto.

(g)Severability. If any provision of this Warrant becomes or is declared by a court of competent jurisdiction to be illegal, unenforceable or void, portions of such provision, or such provision in its entirety, to the extent necessary, shall be severed from this Warrant, and such illegal, unenforceable or void provision shall be replaced with a valid and enforceable provision that will achieve, to the extent possible, the same economic, business and other purposes of the illegal, unenforceable or void provision. The balance of this Warrant shall be enforceable in accordance with its terms.

(h)Waiver of Jury Trial. EACH OF THE HOLDER AND THE COMPANY WAIVES, TO THE FULLEST EXTENT PERMITTED BY LAW, ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING (WHETHER BASED ON CONTRACT, TORT OR OTHERWISE) ARISING OUT OF OR RELATED TO THIS WARRANT.

(i)California Corporate Securities Law. THE SALE OF THE SECURITIES THAT ARE THE SUBJECT OF THIS WARRANT HAS NOT BEEN QUALIFIED WITH THE COMMISSIONER OF CORPORATIONS OF THE STATE OF CALIFORNIA AND THE ISSUANCE OF SUCH SECURITIES OR THE PAYMENT OR RECEIPT OF ANY PART OF THE CONSIDERATION THEREFOR PRIOR TO SUCH QUALIFICATION IS UNLAWFUL, UNLESS THE SALE OF SECURITIES IS EXEMPT FROM QUALIFICATION BY SECTION 25100, 25102, OR 25105 OF THE CALIFORNIA CORPORATIONS CODE. THE RIGHTS OF ALL PARTIES TO THIS WARRANT ARE EXPRESSLY CONDITIONED UPON THE QUALIFICATION BEING OBTAINED, UNLESS THE SALE IS SO EXEMPT.

(j)Saturdays, Sundays and Holidays. If the last or appointed day for the taking of any action or the expiration of any right required or granted herein shall be a Saturday, Sunday or U.S. federal holiday, then such action may be taken or such right may be exercised on the next succeeding day that is not a Saturday, Sunday or

U.S. federal holiday.

(k)Rights and Obligations Survive Exercise of the Warrant. Except as otherwise provided herein, the rights and obligations of the Company and the Holder under this Warrant shall survive exercise of this Warrant.

(l)Entire Agreement. Except as expressly set forth herein, this Warrant (including the exhibits attached hereto) constitutes the entire agreement and understanding of the Company and the Holder with respect to the subject matter hereof and supersede all prior agreements and understandings relating to the subject matter hereof.

Existing Warrant.

(m)

Replacement. This Warrant, together with the Lev Warrant, replace, in its entirety, the

(signature page follows)

200321000 v3

The Company and the Holder sign this Warrant as of the date stated on the first page.

COMPANY:

Address for Notices:

000 Xxxxxxxx Xxxxxx,

Xxxxxxxxx, XX 00000 Attn:

Xxxxxxx Xxxxx Tel.:(000) 000-0000

Fax:(000) 000-0000

Email: xxxxxx@x0xxxxxxxxxx.xxx

AGREED AND ACKNOWLEDGED,

HOLDER:

CRG PARTNERS III (CAYMAN) UNLEV AIV I L.P.

By CRG PARTNERS III (CAYMAN) GP L.P., its General

Partner

By CRG PARTNERS III (CAYMAN) GP LLC, its General

Partner

Name: Title:

Witness: Name:

Address for Notices:

0000 Xxxx Xxxxxx, Xxxxx 0000

Xxxxxxx, XX 00000

Attn:

Portfolio Reporting Tel.:000.000.0000

Fax:000.000.0000

Email: xxxxxxx@xxxxx.xxx

200321000 v3

[Signature Page -Warrant]

The Company and the Holder sign this Warrant as of the date stated on the first page.

COMPANY:

T2 BIOSYSTEMS, INC.

Name: Title:

Address for Notices: 000 Xxxxxxxx Xxxxxx,

Xxxxxxxxx, XX 00000 Attn:Xxxxxxx Xxxxx Tel.:(000) 000-0000

Fax:(000) 000-0000

Email: xxxxxx@x0xxxxxxxxxx.xxx

AGREED AND ACKNOWLEDGED,

HOLDER:

CRG PARTNERS III (CAYMAN) UNLEV AIV I L.P.

By CRG PARTNERS III (CAYMAN) GP L.P., its General

Partner

By CRG PARTNERS III (CAYMAN) GP LLC, its General

Partner

Name: Title:

Xxxxxx Xxxxxx Authorized Signatory

Witness:

Name:

Noah Putter

Address for Notices:

0000 Xxxx Xxxxxx, Xxxxx 0000

Xxxxxxx, XX 00000

Attn:Portfolio Reporting Tel.:000.000.0000

Fax:000.000.0000

Email: xxxxxxx@xxxxx.xxx

[Signature Page – Warrant]

200321000 v3

EXHIBIT A NOTICE OF EXERCISE

TO:T2 BIOSYSTEMS, INC. (the “Company”)

Attention:CHIEF FINANCIAL OFFICER

(1)

Exercise. The undersigned elects to purchase the following pursuant to the terms of the attached warrant: Number of shares:

Type of security:

(2)

Method of Exercise. The undersigned elects to exercise the attached warrant pursuant to:

[ ]

A cash payment, and tenders herewith payment of the purchase price for such shares in full, together with all applicable transfer taxes, if any.

[ ]The net issue exercise provisions of Section 2(b) of the attached warrant.

(3)

Conditional Exercise. Is this a conditional exercise pursuant to Section 2(f):

[ ] Yes [ ] No

If “Yes,” indicate the applicable condition:

(4)

Stock Certificate. Please issue a certificate or certificates representing the shares in the name of:

[ ]The undersigned

[ ]Other—Name:

Address:

(5)

Unexercised Portion of the Warrant. Please issue a new warrant for the unexercised portion of the attached warrant in the name of:

[ ]The undersigned

[ ]Other—Name:

Address:

[ ]Not applicable

(6)

[Investment Intent. The undersigned represents and warrants that the aforesaid shares are being acquired for investment for its own account and not with a view to, or for resale in connection with, the distribution thereof, and that the undersigned has no present intention of selling, granting any participation in, or

A-1

200321000 v3

otherwise distributing the shares, nor does it have any contract, undertaking, agreement or arrangement for the same, and all representations and warranties of the undersigned set forth in Section 10 of the attached warrant are true and correct as of the date hereof. ]1

([6][7]) Consent to Receipt of Electronic Notice. Subject to the limitations set forth in §232(e) of the General Corporation Law of the State of Delaware (the “DCGL”), the undersigned consents to the delivery of any notice to stockholders given by the Company under the DGCL or the Company’s certificate of incorporation or bylaws by (i) facsimile telecommunication to the facsimile number provided below (or to any other facsimile number for the undersigned in the Company’s records), (ii) electronic mail to the electronic mail address provided below (or to any other electronic mail address for the undersigned in the Company’s records), (iii) posting on an electronic network together with separate notice to the undersigned of such specific posting or (iv) any other form of electronic transmission (as defined in the DGCL) directed to the undersigned. This consent may be revoked by the undersigned by written notice to the Company and may be deemed revoked in the circumstances specified in XXXX §000.

(Print name of the warrant holder)

(Signature)

(Name and title of signatory, if applicable)

(Date)

(Fax number)

(Email address)

1 Note to Draft: Include if exercised pursuant to Section 2(a).

A-1-2

200321000 v3

EXHIBIT B ASSIGNMENT FORM

ASSIGNOR:

COMPANY:T2 BIOSYSTEMS, INC.

WARRANT:

THE REPLACEMENT WARRANT TO PURCHASE SHARES OF COMMON STOCK DATED AS OF MARCH 13, 2019 (THE “WARRANT”)

DATE:

(1)

Assignment. The undersigned registered holder of the Warrant (“Assignor”) assigns and transfers to the assignee named below (“Assignee”) all of the rights of Assignor under the Warrant, with respect to the number of shares set forth below:

Name of Assignee:

Address of Assignee:

Number of Shares Assigned:

and does irrevocably constitute and appoint

as attorney to make such transfer

on the books of T2 Biosystems, Inc., maintained for the purpose, with full power of substitution in the premises.

(2)

Obligations of Assignee. Assignee agrees to take and hold the Warrant and any shares of stock to be issued upon exercise of the rights thereunder (the “Securities”) subject to, and to be bound by, the terms and conditions set forth in the Warrant to the same extent as if Assignee were the original holder thereof.

(3)

[Investment Intent. Assignee represents and warrants that the Securities are being acquired for investment for its own account, not as a nominee or agent, and not with a view to, or for resale in connection with, the distribution thereof, and that Assignee has no present intention of selling, granting any participation in, or otherwise distributing the shares, nor does it have any contract, undertaking, agreement or arrangement for the same, and all representations and warranties set forth in Section 10 of the Warrant are true and correct as to Assignee as of the date hereof.]2