definiens: ( each such Person, an ) of [COMPANY] within the meaning of Rule 145 promulgated under the Securities Act of 1933, as amended . [COMPANY] shall provideAVANT such information and documents as AVANT shall reasonably request for purposes of reviewing such list . Celldexshall use its reasonable best efforts to deliver or cause to be delivered to AVANT, prior to the Closing Date, from each of theAffiliates of [COMPANY] identified in the foregoing list, an Affiliate Letter in the form attached hereto as Exhibit C ( ) . AVANT shall be entitled to place legends as specified in such Affiliate Letters on the certificates evidencing anyshares of AVANT Common Stock to be received by such Affiliates pursuant to the terms of this Agreement, and to issueappropriate stop transfer instructions to the transfer agent for the shares of AVANT Common Stock, consistent with the termsof such Affiliate Letters