Restriction on Transfer of Shares Proxies and Non-Interference. Beginning on the date hereof and ending on the later to occur of (A) last date the Stock Options are exercisable pursuant to Section 3 hereof and (B) the date that all of the Stockholder's obligations under Section 2 have terminated, except as contemplated by this Agreement or the Merger Agreement, no Stockholder shall, directly or indirectly, (i) offer for sale, sell, transfer, tender, pledge, encumber, assign or otherwise dispose of, or enter into any contract, option or other arrangement or understanding with respect to or consent to the offer for sale, sale, transfer, tender, pledge, encumbrance, assignment or other disposition of, any or all of the Shares or any interest therein; (ii) except as contemplated by this Agreement, grant any proxies or powers of attorney, deposit any of the Shares into a voting trust or enter into a voting agreement with respect to any of the Shares; or (iii) take any action that would make any representation or warranty of the Stockholder contained herein untrue or incorrect or have the effect of preventing or disabling the Stockholder from performing the Stockholder's obligations under this Agreement. Notwithstanding anything to the contrary provided in this Agreement, a Stockholder shall have the right to make Permitted Transfers of Shares. The Stockholder agrees with, and covenants to, Sub that beginning on the date hereof and ending on the last date the Stock Options are exercisable pursuant to Section 3 hereof, the Stockholder shall not request that the Company register the transfer (book-entry or otherwise) of any certificate or uncertificated interest representing any of the Shares, unless such transfer is made in compliance with this Agreement (including the provisions of Section 2 hereof).