X0306 4 2017-12-12 0001069308 Acer Therapeutics Inc. ACER 0001599744 TVM Life Science Ventures VI GmbH & Co KG C/O TVM CAPITAL GROUP OTTOSTRASSE 4 MUNICH 2M 80333 GERMANY 1 0 1 0 0001318584 TVM Life Science Ventures VI LP C/O TVM CAPITAL GROUP OTTOSTRASSE 4 MUNICH 2M 80333 GERMANY 1 0 1 0 0001640880 TVM Life Science Ventures VII L.P. C/O TVM CAPITAL GROUP 204, RUE NOTRE-DAME OUEST, BUREAU 350 MONTREAL A8 H2Y 1T3 QUEBEC, CANADA 1 0 1 0 0001398598 Birner Hubert C/O TVM CAPITAL GROUP OTTOSTRASSE 4 MUNICH 2M 80333 GERMANY 1 0 1 0 0001639971 Marengere Luc C/O TVM CAPITAL GROUP OTTOSTRASSE 4 MUNICH 2M 80333 GERMANY 1 0 1 0 0001398596 Fischer Stefan C/O TVM CAPITAL GROUP OTTOSTRASSE 4 MUNICH 2M 80333 GERMANY 0 0 1 0 0001133921 SCHUHSLER HELMUT C/O TVM CAPITAL GROUP OTTOSTRASSE 4 MUNICH 2M 80333 GERMANY 0 0 1 0 0001718086 Wanless Mark C/O TVM CAPITAL GROUP OTTOSTRASSE 4 MUNICH 2M 80333 GERMANY 0 0 1 0 0001718117 Leatt Gary C/O TVM CAPITAL GROUP OTTOSTRASSE 4 MUNICH 2M 80333 GERMANY 0 0 1 0 Common Stock 2017-12-12 4 P 0 62062 12.00 A 725844 I See Footnote Common Stock 2017-12-12 4 P 0 21271 12.00 A 248756 I See Footnote Common Stock 2017-12-12 4 P 0 250000 12.00 A 1422709 I See Footnote The shares are directly held by TVM Life Science Ventures VI GmbH & Co. KG ("TVM VI"). Hubert Birner ("Birner"), Stefan Fischer ("Fischer"), and Helmut Schuhsler ("Schuhsler") are members of the investment committee of TVM Life Science Ventures Management VI L.P. ("TVM VI Management"), a special limited partner of TVM VI, with voting and dispositive power over the shares held by TVM VI. TVM VI Management, Birner, Schuhsler and Fischer each disclaim beneficial ownership of the shares held by TVM VI, except to the extent of any pecuniary interest therein, if any. Birner is a director of the Issuer. The shares are directly held by TVM Life Science Ventures VI L.P. ("TVM VI LP"). Birner, Schuhsler and Fischer are members of the investment committee of TVM VI Management, a special limited partner of TVM VI LP, with voting and dispositive power over the shares held by TVM VI LP. TVM VI Management, Birner, Schuhsler and Fischer each disclaim beneficial ownership of the shares held by TVM VI LP, except to the extent of any pecuniary interest therein, if any. These shares are directly held by TVM Life Science Ventures VII L.P. ("TVM VII LP"). TVM Life Science Ventures VII (GP) Ltd. ("TVM VII GP Ltd") is the general partner of TVM VII LP. Luc Marengere ("Marengere"), Mark Wanless ("Wanless"), Gary Leatt ("Leatt"), Birner, Fischer and Schuhsler are members of the investment committee of TVM VII GP Ltd, which has voting and investment power with respect to these shares. TVM VII GP Ltd, Birner, Fischer, Schuhsler, Marengere, Wanless and Leatt each disclaim any beneficial ownership of the reported securities, except to the extent of any pecuniary interest therein, if any. Marengere is a director of the Issuer. /s/ Stefan Fischer, Director of TVM Life Science Ventures VI LLC, general partner of TVM Life Science Ventures Management VI L.P., managing limited partner of TVM Life Science Ventures VI GMBH & Co. KG 2018-01-12 /s/ Stefan Fischer, Director of TVM Life Science Ventures VI LLC, general partner of TVM Life Science Ventures Management VI L.P., managing limited partner of TVM Life Science Ventures VI L.P. 2018-01-12 /s/ Stefan Fischer, Director of TVM Life Science Ventures VII (GP) Ltd., general partner of TVM Life Science Ventures VII L.P. 2018-01-12 /s/ Stefan Fischer, Attorney in Fact for Hubert Birner 2018-01-12 /s/ Luc Marengere 2018-01-12 /s/ Stefan Fischer 2018-01-12 /s/ Stefan Fischer, Attorney in Fact for Helmut Schuhsler 2018-01-12 /s/ Mark Wanless 2018-01-12 /s/ Gary Leatt 2018-01-12