Mukul Kumar - 02 Jun 2026 Form 4 Insider Report for PubMatic, Inc. (PUBM)

Reporting relationship: PRESIDENT, ENGINEERING
Issuer ticker: PUBM
Reported as of: 02 Jun 2026
Net transaction value: -$95,700
SEC form: 4
Accepted by SEC: 03 Jun 2026, 17:32:36 UTC
Prior SEC filing: 19 Feb 2026
Source filing: View source filing
Reporting owner signature: /s/ Andrew Woods, Attorney-in-Fact

Key filing fact

Mukul Kumar filed Form 4 for PubMatic, Inc. (PUBM) on 03 Jun 2026.

Key facts

This page summarizes Mukul Kumar's Form 4 filing for PubMatic, Inc. (PUBM).
5 reported transactions and 3 derivative rows are listed below.
Accepted by SEC: 03 Jun 2026, 17:32.

Change

Previous filing in this sequence was filed on 19 Feb 2026.
Current net transaction value: -$95,700.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001833462 Primary reporting owner

Kumar Mukul

Relationship: PRESIDENT, ENGINEERING
Address: C/O PUBMATIC, INC., 601 MARSHALL STREET, REDWOOD CITY
Signature: /s/ Andrew Woods, Attorney-in-Fact
Signature date: 03 Jun 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

PUBM transaction

Class A Common Stock

Conversion of derivative security

Transaction value
Shares: +8,000
Change %: +7.9%
Price: $0.000000^*
Shares after: 108,869
Date: 02 Jun 2026
Ownership: Direct
Footnotes: F1

PUBM transaction

Class A Common Stock

Sale

Transaction value: $95,700
Shares: -8,000
Change %: -7.3%
Price: $11.96
Shares after: 100,869
Date: 02 Jun 2026
Ownership: Direct
Footnotes: F2, F3

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

PUBM transaction Derivative

Stock Option (Right to buy Class B Common Stock)

Options Exercise

Transaction value
Shares: -8,000
Change %: -17%
Price: $0.000000^*
Shares after: 39,000
Date: 02 Jun 2026
Ownership: Direct
Underlying class: Class B Common Stock
Underlying amount: 8,000
Exercise price: $2.15
Footnotes: F4

PUBM transaction Derivative

Class B Common Stock

Options Exercise

Transaction value
Shares: +8,000
Change %: +5.9%
Price: $0.000000^*
Shares after: 143,600
Date: 02 Jun 2026
Ownership: Direct
Underlying class: Class A Common Stock
Underlying amount: 8,000
Exercise price
Footnotes: F5

PUBM transaction Derivative

Class B Common Stock

Conversion of derivative security

Transaction value
Shares: -8,000
Change %: -5.6%
Price: $0.000000^*
Shares after: 135,600
Date: 02 Jun 2026
Ownership: Direct
Underlying class: Class A Common Stock
Underlying amount: 8,000
Exercise price
Footnotes: F5

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 5 footnotes

Footnote F1

Includes 1,384 shares of Class A Common Stock acquired by the Reporting Person pursuant to the Issuer's employee stock purchase plan.

Footnote F2

The sales reported in this line item were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 3, 2026.

Footnote F3

Represents the weighted average sale price. The lowest price at which shares were sold was $11.67 and the highest price at which shares were sold was $12.12. The Reporting Person undertakes to provide upon request to the staff of the Securities and Exchange Commission, the Issuer or its stockholders, full information regarding the total number of shares sold at each separate price within the range set forth herein.

Footnote F4

The options are fully vested.

Footnote F5

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.