definiens: ( as such term is defined in Rule 144 ) of such Purchaser, provided that the transferee certifies to the Company that it is an within the meaning of Rule 501 under the Securities Act and that it is acquiring the Shares solely for investment purposes . As a condition of such transfer, any such transferee shall agree in writing to be bound by the terms of Section 7 of this Agreement and, so long as Purchaser transfers ~fl~~t:~5 % of the Shares held by it at such time to the transferee, such transferee shall have the rights of Purchaser under Section 7 of this Agreement ; provided, however, with respect to any subsequent transfer of Shares by any such subsequent transferee, such Shares shall not be considered Registrable Securities ( as defined below ) under this Agreement . Purchaser will be required to notify any subsequent transferee of any then existing resale restrictions as set forth above and to comply with the provisions of this Section 7