X0306 4 2022-07-18 0 0001422930 PubMatic, Inc. PUBM 0001833508 Goel Amar K. C/O PUBMATIC, INC. 601 MARSHALL STREET REDWOOD CITY CA 94063 1 1 1 0 Chairman, Chief Growth Officer Class A Common Stock 2022-07-18 4 C 0 8000 0.00 A 8000 I By Birchwood Trust Class A Common Stock 2022-07-18 4 S 0 8000 15.8499 D 0 I By Birchwood Trust Class A Common Stock 2022-07-18 4 C 0 5000 0.00 A 5000 I By By Marais Irrevocable Trust Class A Common Stock 2022-07-18 4 S 0 5000 15.946 D 0 I By Marais Irrevocable Trust Class A Common Stock 2022-07-18 4 C 0 5000 0.00 A 5000 I By Tuscan Irrevocable Trust Class A Common Stock 2022-07-18 4 S 0 5000 15.9425 D 0 I By Tuscan Irrevocable Trust Class A Common Stock 2022-07-18 4 C 0 3000 0.00 A 3000 I By RAJN Trust - A Class A Common Stock 2022-07-18 4 S 0 3000 16.0061 D 0 I By RAJN Trust - A Class A Common Stock 2022-07-18 4 C 0 3000 0.00 A 3000 I By RAJN Trust - N Class A Common Stock 2022-07-18 4 S 0 3000 15.9982 D 0 I By RAJN Trust - N Class B Common Stock 2022-07-18 4 C 0 8000 0.00 D Class A Common Stock 8000 1335636 I By Birchwood Trust Class B Common Stock 2022-07-18 4 C 0 3000 0.00 D Class A Common Stock 5000 855000 I By Marais Irrevocable Trust Class B Common Stock 2022-07-18 4 C 0 3000 0.00 D Class A Common Stock 5000 855000 I By Tuscan Irrevocable Trust Class B Common Stock 2022-07-18 4 C 0 5000 0.00 D Class A Common Stock 3000 623652 I By RAJN Trust-A Trust Class B Common Stock 2022-07-18 4 C 0 5000 0.00 D Class A Common Stock 3000 623652 I By RAJN Trust-N These shares are held by the Birchwood Trust, of which the Reporting Person and his spouse are beneficiaries. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Birchwood Trust. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.59 to $16.16 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. These shares are held by the Marais Irrevocable Trust, of which the Reporting Person's spouse is a beneficiary. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, if any, and the filing of this report is not an admission that the Reporting Person is the beneficial owner of these securities for purposes of Section 16 or for any other purpose. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Marais Irrevocable Trust. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.63 to $16.16 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. These shares are held by the Tuscan Irrevocable Trust, of which the Reporting Person is a beneficiary. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Tuscan Irrevocable Trust. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.62 to $16.16 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. These shares are held by the RAJN Trust-A, of which one of the Reporting Person's children is a beneficiary. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, if any, and the filing of this report is not an admission that the Reporting Person is the beneficial owner of these securities for purposes of Section 16 or for any other purpose. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the RAJN Trust-A. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.79 to $16.17 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. These shares are held by the RAJN Trust-N, of which one of the Reporting Person's children is a beneficiary. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, if any, and the filing of this report is not an admission that the Reporting Person is the beneficial owner of these securities for purposes of Section 16 or for any other purpose. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the RAJN Trust-N. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.78 to $16.17 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Each share of Class B common stock held by the Issuer's executive officers, directors and their respective affiliates will convert automatically into one share of Class A common stock upon any transfer, except for certain permitted transfers. /s/ Thomas Chow, Attorney-in-Fact 2022-07-20