X0306 4 2021-05-17 0 0001422930 PubMatic, Inc. PUBM 0001106255 DRAPER ASSOCIATES L P 55 EAST 3RD AVENUE SAN MATEO CA 94401 0 0 1 0 0001312964 Draper Fisher Jurvetson Fund VIII L P 2882 SAND HILL ROAD, SUITE 150 MENLO PARK CA 94025 0 0 1 0 0001327087 DRAPER FISHER JURVETSON PARTNERS VIII LLC 2882 SAND HILL ROAD, SUITE 150 MENLO PARK CA 94025 0 0 1 0 0001565284 Draper Associates Riskmasters Fund II, LLC 55 EAST 3RD AVENUE SAN MATEO CA 94401 0 0 1 0 0001565224 Draper Associates Riskmasters Fund III, LLC 55 EAST 3RD AVENUE SAN MATEO CA 94401 0 0 1 0 0001074910 DRAPER TIMOTHY C 55 EAST 3RD AVENUE SAN MATEO CA 94401 0 0 1 0 0001304934 Fisher John H N 2882 SAND HILL ROAD, SUITE 150 MENLO PARK CA 94025 0 0 1 0 Class A Common Stock 2021-05-18 4 C 0 283434 0.00 A 283434 I By Draper Associates, L.P. Class A Common Stock 2021-05-17 4 C 0 3290530 0.00 A 3290530 I By Draper Fisher Jurvetson Fund VIII, L.P. Class A Common Stock 2021-05-17 4 C 0 73123 0.00 A 73123 I By Draper Fisher Jurvetson Partners VIII, LLC Class A Common Stock 2021-05-18 4 C 0 4909 0.00 A 4909 I By Draper Associates Riskmasters Fund II, LLC Class A Common Stock 2021-05-18 4 C 0 4148 0.00 A 4148 I By Draper Associates Riskmasters Fund III, LLC Class B Common Stock 2021-05-18 4 C 0 283434 0.00 D Class A Common Stock 283434 0 I By Draper Associates, L.P. Class B Common Stock 2021-05-17 4 C 0 3290530 0.00 D Class A Common Stock 3290530 0 I By Draper Fisher Jurvetson Fund VIII, L.P. Class B Common Stock 2021-05-17 4 C 0 73123 0.00 D Class A Common Stock 73123 0 I By Draper Fisher Jurvetson Partners VIII, LLC Class B Common Stock 2021-05-18 4 C 0 4909 0.00 D Class A Common Stock 4909 0 I By Draper Associates Riskmasters Fund II, LLC Class B Common Stock 2021-05-18 4 C 0 4148 0.00 D Class A Common Stock 4148 0 I By Draper Associates Riskmasters Fund III, LLC These shares are held of record by Draper Associates, L.P. ("DALP"). DALP invests lockstep alongside Draper Fisher Jurvetson Fund VIII, L.P ("Fund VIII"). The General Partner of DALP is Draper Management Company, LLC ("DMC"). The Managing Member of DMC is Timothy C. Draper. Mr. Draper may be deemed to have voting and investment power over the securities held by DALP. Mr. Draper disclaims beneficial ownership over such securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes. These shares are held of record by Fund VIII. Timothy C. Draper and John H.N. Fisher are Managing Directors of the general partner entities of Fund VIII (Draper Fisher Jurvetson Fund VIII Partners, L.P. and DFJ VIII, Ltd) and as such, they may be deemed to have voting and investment power with respect to such shares. Mr. Draper and Mr. Fisher (and the general partners of Fund VIII) each disclaims beneficial ownership over such securities except to the extent of their pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes. These shares are held of record by Draper Fisher Jurvetson Partners VIII, LLC ("Fund VIII LLC") which is a side-by-side fund of Fund VIII. Fund VIII LLC invests lockstep alongside Fund VIII. The Managing Members of Fund VIII LLC are Timothy C. Draper and John H.N. Fisher and as such, they may be deemed to have voting and investment power with respect to such shares. Mr. Draper and Mr. Fisher each disclaims beneficial ownership over such securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes. Each outstanding share of Class B Common Stock converted at the option of the Reporting Person into one share of Class A Common Stock. These shares are held of record by Draper Associates Riskmasters Fund II, LLC ("DARF II"). DARF II invests lockstep alongside Fund VIII. The Managing Member of DARF II is Timothy C. Draper. Mr. Draper may be deemed to have voting and investment power over the securities held by DARF II. Mr. Draper disclaims beneficial ownership over such securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes. These shares are held of record by Draper Associates Riskmasters Fund III, LLC ("DARF III"). DARF III invests lockstep alongside Fund VIII. The Managing Member of DARF III is Timothy C. Draper. Mr. Draper may be deemed to have voting and investment power over the securities held by DARF III. Mr. Draper disclaims beneficial ownership over such securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes. Draper Associates, L.P., By: Draper Management Company, LLC (General Partner, By: /s/ Timothy C. Draper, Name: Timothy C. Draper, Title: Managing Member 2021-05-19 Draper Fisher Jurvetson Fund VIII, L.P., By: Draper Fisher Jurvetson Fund VIII Partners, L.P. (general partner), By: DFJ Fund VIII, Ltd., its general partner, By: /s/ John H. N. Fisher, Name: John H. N. Fisher, Title: Managing Director 2021-05-19 Draper Fisher Jurvetson Partners VIII, LLC, By: /s/ John H. N. Fisher, Name: John H. N. Fisher, Title: Managing Director 2021-05-19 Draper Associates Riskmasters Fund II, LLC, By: /s/ Timothy C. Draper, Name: Timothy C. Draper, Title: Managing Member 2021-05-19 Draper Associates Riskmasters Fund III, LLC, By: /s/ Timothy C. Draper, Name: Timothy C. Draper, Title: Managing Member 2021-05-19 /s/ Timothy C. Draper 2021-05-19 /s/ John H. N. Fisher 2021-05-19