X0508 4 2023-10-01 0 0001422930 PubMatic, Inc. PUBM 0001833511 Goel Rajeev K. C/O PUBMATIC, INC. 601 MARSHALL STREET REDWOOD CITY CA 94063 1 1 1 0 Chief Executive Officer 1 Class A Common Stock 2023-10-01 4 M 0 34280 0.00 A 84389 D Class A Common Stock 2023-10-02 4 S 0 17893 11.8246 D 66496 D Class A Common Stock 2023-10-03 4 C 0 7500 0.00 A 7500 I See footnote Class A Common Stock 2023-10-03 4 S 0 7500 11.7508 D 0 I See footnote Restricted Stock Unit 0.00 2023-10-01 4 M 0 11237 0.00 D Class A Common Stock 11237 101128 D Restricted Stock Unit 0.00 2023-10-01 4 M 0 23043 0.00 D Class A Common Stock 23043 299552 D Class B Common Stock 2023-10-03 4 C 0 7500 0.00 D Class A Common Stock 7500 472013 I See footnote Class B Common Stock Class A Common Stock 581260 581260 I See footnote Class B Common Stock Class A Common Stock 400000 400000 I See footnote Class B Common Stock Class A Common Stock 68616 68616 I See footnote Class B Common Stock Class A Common Stock 308775 308775 I See footnote Class B Common Stock Class A Common Stock 308775 308775 I See footnote Class B Common Stock Class A Common Stock 210984 210984 D The sales reported on this Form 4 represent shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of restricted stock units ("RSUs"). The sales were to satisfy tax withholding obligations to be funded by a "sell to cover" transaction. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.87 to $12.08, inclusive. The Reporting Person undertakes to provide to the Issuer, any securityholder 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 herein. These securities are held by The Goel Family 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 Goel Family Trust on March 1, 2023. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.63 to $11.85, inclusive. The Reporting Person undertakes to provide to the Issuer, any securityholder 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 herein. Each RSU represents a right to receive one share of the Issuer's Class A Common Stock at the time of settlement for no consideration. The RSUs vested as to 1/16th of the total shares on April 1, 2022, and 1/16th of the total shares vest quarterly thereafter, subject to the Reporting Person's provision of service to the Issuer on each vesting date. RSUs do not expire; they either vest or are canceled prior to the vesting date. The RSUs vested as to 1/16th of the total shares on April 1, 2023, and 1/16th of the total shares will vest quarterly thereafter, subject to the Reporting Person's provision of service to the Issuer on each vesting date. 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. These securities are held by the Reporting Person, as custodian for the benefit of his children under the California Uniform Transfers to Minors Act. These securities are held by The Goel Heritage Trust, of which the Reporting Person's children are beneficiaries. 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. These securities are held by The Goel Family Gift Trust, of which family members and certain other individuals are beneficiaries. 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. These securities are held by a trust for the benefit of the Reporting Person's child. 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. /s/ Andrew Woods, Attorney-in-Fact 2023-10-03