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* August Capital Management V, L.L.C. (Last) (First) (Middle) PMB #456, 660 4TH STREET (Street) SAN FRANCISCO CA 94107 (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 X 10% Owner Officer (give title below) Other (specify below)	5. If Amendment, Date of Original Filed (Month/Day/Year)
			6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X 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
Series D Preferred Stock	(1)	(1)	Class B Common Stock(2)	6,136,776	(1)	I	See footnote(3)
Series D Prime Preferred Stock	(1)	(1)	Class B Common Stock(2)	1,036,974	(1)	I	See footnote(3)

1. Name and Address of Reporting Person* August Capital Management V, L.L.C. (Last) (First) (Middle) PMB #456, 660 4TH STREET (Street) SAN FRANCISCO CA 94107 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* August Capital Strategic Partners V, L.P. (Last) (First) (Middle) PMB #456, 660 4TH STREET (Street) SAN FRANCISCO CA 94107 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Hartenbaum Howard (Last) (First) (Middle) PMB #456, 660 4TH STREET (Street) SAN FRANCISCO CA 94107 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Hornik David (Last) (First) (Middle) C/O AUGUST CAPITAL PMB #456, 660 4TH STREET (Street) SAN FRANCISCO CA 94107 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* August Capital V Special Opportunities, L.P. (Last) (First) (Middle) PMB #456, 660 4TH STREET (Street) SAN FRANCISCO CA 94107 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

Explanation of Responses:

1. Each share of Series D Preferred Stock and Series D Prime Preferred Stock will automatically convert into one share of Class B common stock immediately prior to the closing of the Issuer's initial public offering. The Series D Preferred Stock and Series D Prime Preferred Stock have no expiration date.

2. 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.

3. These securities are held by August Capital V Special Opportunities, L.P., as nominee for August Capital V Special Opportunities, L.P., August Capital Strategic Partners V, L.P. and related individuals (collectively, the August Capital Funds). August Capital Management V, L.L.C. is the general partner of the August Capital Funds and may be deemed to have sole voting power and sole investment power over the shares held by the August Capital Funds. Howard Hartenbaum and David M. Hornik are the members of August Capital Management V, L.L.C. and they, along with W. Eric Carlborg as a voting party with respect to the Issuer's securities, may be deemed to share voting and investment power with respect to the shares held by the August Capital Funds.

Remarks:

This report is one of two reports, each on a separate Form 3, but relating to the same transactions being filed by entities and persons affiliated with August Capital.

	/s/ Abigail Hipps, Attorney-in-Fact for August Capital entities /s/ Abigail Hipps, Attorney-in-Fact for Howard Hartenbaum /s/ Abigail Hipps, Attorney-in-Fact for David Hornik	12/08/2020
	** Signature of Reporting Person	Date
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