Cathleen Black - Nov 11, 2021 Form 4 Insider Report for PubMatic, Inc. (PUBM)

Role: Director
Signature: /s/ Thomas Chow, Attorney-in-Fact
Stock symbol: PUBM
Transactions as of: Nov 11, 2021
Transactions value $: $0
Form type: 4
Date filed: 11/15/2021, 05:36 PM
Next filing: Nov 19, 2021

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	PUBM	Class A Common Stock	Conversion of derivative security	$0	+37.5K		$0.00	37.5K	Nov 11, 2021	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	PUBM	Stock Option (Right to buy Class B Common Stock)	Options Exercise	$0	-37.5K	-50%	$0.00	37.5K	Nov 11, 2021	Class B Common Stock	37.5K	$1.11	Direct	F1
transaction	PUBM	Class B Common Stock	Options Exercise	$0	+37.5K	+257.25%	$0.00	52.1K	Nov 11, 2021	Class A Common Stock	37.5K		Direct	F2
transaction	PUBM	Class B Common Stock	Conversion of derivative security	$0	-37.5K	-72.01%	$0.00	14.6K	Nov 11, 2021	Class A Common Stock	37.5K		Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The options are fully vested.
F2	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.