SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person* Hirsch Jeffrey K. (Last) (First) (Middle) C/O PUBMATIC, INC. 3 LAGOON DRIVE, SUITE 180 (Street) REDWOOD CITY CA 94065 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 12/08/2020	3. Issuer Name and Ticker or Trading Symbol PubMatic, Inc. [ PUBM ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) Chief Commercial Officer	5. If Amendment, Date of Original Filed (Month/Day/Year) 12/08/2020
			6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (Right to buy Class B Common Stock)	(1)	08/15/2026(2)	Class B Common Stock(3)	175,000	1.11	D
Stock Option (Right to buy Class B Common Stock)	(4)	03/13/2028	Class B Common Stock(3)	70,000	3.89	D
Stock Option (Right to buy Class B Common Stock)	(5)	05/20/2029	Class B Common Stock(3)	70,000	2.97	D
Stock Option (Right to buy Class B Common Stock)	(6)	07/28/2030	Class B Common Stock(3)	100,000	2.16	D

Explanation of Responses:

1. The options are fully vested.

2. This amendment to Form 3 filed on December 8, 2020 reflects a correction to the stock option expiration date.

3. 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 that occurs after the closing of the Issuer's initial public offering, except for certain permitted transfers.

4. The option vests as to 1/48 of the total shares on February 1, 2018, and 1/48 of the total shares will vest monthly thereafter, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

5. The option vests as to 1/48 of the total shares on February 1, 2019, and 1/48 of the total shares will vest monthly thereafter, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

6. The option vests as to 1/48 of the total shares on February 1, 2020, and 1/48 of the total shares will vest monthly thereafter, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

Remarks:

	/s/ Thomas Chow, Attorney-in-Fact	12/10/2020
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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