Amar K. Goel - 03 Sep 2026 Form 4 Insider Report for PubMatic, Inc. (PUBM)

Reporting relationship: CHAIRMAN, CHIEF INNOVATION OFF, Director, 10%+ Owner
Issuer ticker: PUBM
Reported as of: 03 Sep 2026
Net transaction value: -$106,527
SEC form: 4
Accepted by SEC: 04 Sep 2026, 17:03:44 UTC
Prior SEC filing: 06 Jul 2026
Source filing: View source filing
Reporting owner signature: /s/ Andrew Woods, Attorney-in-Fact

Key filing fact

Amar K. Goel filed Form 4 for PubMatic, Inc. (PUBM) on 04 Sep 2026.

Key facts

This page summarizes Amar K. Goel's Form 4 filing for PubMatic, Inc. (PUBM).
5 reported transactions and 9 derivative rows are listed below.
Accepted by SEC: 04 Sep 2026, 17:03.

Change

Previous filing in this sequence was filed on 06 Jul 2026.
Current net transaction value: -$106,527.

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 0001833508 Primary reporting owner

Goel Amar K.

Relationship: CHAIRMAN, CHIEF INNOVATION OFF, Director, 10%+ Owner
Address: C/O PUBMATIC, INC., 601 MARSHALL STREET, REDWOOD CITY
Signature: /s/ Andrew Woods, Attorney-in-Fact
Signature date: 04 Sep 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: +6,250
Change %: +18%
Price
Shares after: 41,830
Date: 03 Sep 2026
Ownership: Direct
Footnotes: F1

PUBM transaction

Class A Common Stock

Sale

Transaction value: $106,527
Shares: -6,250
Change %: -15%
Price: $17.04
Shares after: 35,580
Date: 03 Sep 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: -6,250
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 03 Sep 2026
Ownership: Direct
Underlying class: Class A Common Stock
Underlying amount: 6,250
Exercise price: $2.15
Footnotes: F4

PUBM transaction Derivative

Class B Common Stock

Options Exercise

Transaction value
Shares: +6,250
Change %
Price: $2.15^*
Shares after: 6,250
Date: 03 Sep 2026
Ownership: Direct
Underlying class: Class A Common Stock
Underlying amount: 6,250
Exercise price
Footnotes: F1

PUBM transaction Derivative

Class B Common Stock

Conversion of derivative security

Transaction value
Shares: -6,250
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 03 Sep 2026
Ownership: Direct
Underlying class: Class A Common Stock
Underlying amount: 6,250
Exercise price
Footnotes: F1

PUBM holding Derivative

Class B Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 755,314
Date: 03 Sep 2026
Ownership: By Marais Irrevocable Trust
Underlying class: Class A Common Stock
Underlying amount: 755,314
Exercise price
Footnotes: F1, F5

PUBM holding Derivative

Class B Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 755,584
Date: 03 Sep 2026
Ownership: By Tuscan Irrevocable Trust
Underlying class: Class A Common Stock
Underlying amount: 755,584
Exercise price
Footnotes: F1, F6

PUBM holding Derivative

Class B Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 524,162
Date: 03 Sep 2026
Ownership: By RAJN Trust-A
Underlying class: Class A Common Stock
Underlying amount: 524,162
Exercise price
Footnotes: F1, F7

PUBM holding Derivative

Class B Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 524,247
Date: 03 Sep 2026
Ownership: By RAJN Trust-N
Underlying class: Class A Common Stock
Underlying amount: 524,247
Exercise price
Footnotes: F1, F8

PUBM holding Derivative

Class B Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 443,414
Date: 03 Sep 2026
Ownership: See footnote
Underlying class: Class A Common Stock
Underlying amount: 443,414
Exercise price
Footnotes: F1, F9

PUBM holding Derivative

Class B Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 1,231,585
Date: 03 Sep 2026
Ownership: By Birchwood Trust
Underlying class: Class A Common Stock
Underlying amount: 1,231,585
Exercise price
Footnotes: F1, F10

^* 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 10 footnotes

Footnote F1

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.

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 June 4, 2026.

Footnote F3

Represents the weighted average sale price. The lowest price at which shares were sold was $16.795 and the highest price at which shares were sold was $17.73. 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

These shares are held by the Marais Irrevocable Trust, of which the Reporting Person's spouse is a beneficiary. 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.

Footnote F6

These shares are held by the Tuscan Irrevocable Trust, of which the Reporting Person is a beneficiary.

Footnote F7

These shares are held by the RAJN Trust-A, of which one of the Reporting Person's children is a beneficiary. 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.

Footnote F8

These shares are held by the RAJN Trust-N, of which one of the Reporting Person's children is a beneficiary. 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.

Footnote F9

These securities are held by the Reporting Person, as custodian for the benefit of his children under the California Uniform Transfers to Minors Act.

Footnote F10

These shares are held by the Birchwood Trust, of which the Reporting Person and his spouse are beneficiaries.

We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. to update or revoke optional consent for future visits. For more information, see our Privacy Policy .