As Of	Filer	Filing¹	For·On·As	Docs:Size	Issuer		Filing Agent

 4/24/06  Bailey Gregory                    3          Director²   1:5K   Acer Therapeutics Inc.            Rouse William            
 4/24/06  Albert & Margaret Alk… Foundation SC 13D                 2:204K Acer Therapeutics Inc.            Bowne - Houston/FA       
          Albert & Margaret Alkek Foundation³
          Alkek & Williams Ventures Ltd.³
          Chaswil, Ltd.³
          Daniel C. Arnold³
          DLD Family Investments, LLC³
          Joe M. Bailey³
          Randa Duncan Williams³
          Scott B. Seaman³
 4/24/06  Albert & Margaret Alk… Foundation 3          10% Owner²  1:6K   Acer Therapeutics Inc.            DONNELLEY FIN… File16/FA 
 4/24/06  Seaman Scott B                    3          Director²   1:6K   Acer Therapeutics Inc.            DONNELLEY FIN… File16/FA 
 4/24/06  Marxe Austin W & Greenhouse Da… M SC 13D                 1:12K  Acer Therapeutics Inc.                                     
          Austin W. Marxe³
          Awm Investment Co., Inc.³
          David M. Greenhouse³
          LS Advisers, LLC³
          MG Advisers, L.L.C.³
          MGP Advisers Ltd. Partnership³
          Special Situations Cayman Fund, L.P.³
          Special Situations Fund III QP, L.P.³
          Special Situations Fund III, L.P.³
          Special Situations Life Sciences Fund, L.P.³
          Special Situations Private Equity Fund, L.P.³
 4/24/06  Marxe Austin W & Greenhouse Da… M 3          10% Owner²  1:6K   Acer Therapeutics Inc.                                     

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¹	Filing/Form Types:  -U
	3	Initial Statement of Beneficial Ownership of Securities by an Insider — Form 3 { The Filer is an Insider² of the Issuer }.
	SC 13D	Statement of Acquisition of Beneficial Ownership by an “Active” Investor — Schedule 13D.
²	Insider:  The Filer is a Director, Officer, 10% Owner and/or Other “insider” of the Issuer.
³	Group Member:  A Registrant or non-Registrant party to this Filing made by a Group.