PubMatic: Birchwood Trust proposes $285K share sale

Available on EDGAR 11/13/2026 - 04:39 PM EST Accepted by SEC EDGAR 11/13/2026 - 04:39 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

PubMatic, Inc. is named in a Form 144 notice for a proposed sale by the Birchwood Trust U/T/A DTD 09/10/2012 of 15,000 common shares, with an aggregate market value of $285,300.00 and an approximate sale date of November 13, 2026. The shares are described as Class B restricted shares acquired from the issuer on November 24, 2006. The notice lists 37,630,887 common shares outstanding.

The notice lists director, officer and 10% stockholder as issuer relationship categories, and Amar Goel signed it. It gives June 4, 2026 as the plan adoption or instruction date in the field for a sale relying on Rule 10b5-1. The notice also reports three recent common-share sales by Amar Goel: 10,795 shares on October 5, 2026; 7,302 on October 2, 2026; and 6,250 on September 3, 2026.

Key Figures

Proposed common shares for sale: 15,000 shares Aggregate market value: $285,300.00 Common shares outstanding: 37,630,887 shares +5 more

8 metrics

Proposed common shares for sale 15,000 shares Birchwood Trust; approximate sale date November 13, 2026

Aggregate market value $285,300.00 Value associated with the proposed sale of 15,000 common shares

Common shares outstanding 37,630,887 shares As stated in the notice

Common shares sold 10,795 shares Amar Goel sale reported October 5, 2026; gross proceeds $201,487.60

Gross proceeds $201,487.60 Amar Goel sale reported October 5, 2026

Common shares sold 7,302 shares Amar Goel sale reported October 2, 2026; gross proceeds $138,545.23

Common shares sold 6,250 shares Amar Goel sale reported September 3, 2026; gross proceeds $106,526.88

Plan adoption or instruction date June 4, 2026 Date entered in the field for a sale relying on Rule 10b5-1

Key Terms

Rule 10b5-1, Class B Restricted Shares

2 terms

Rule 10b5-1 regulatory

"If Relying on Rule 10b5-1"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

Class B Restricted Shares technical

"Nature of Acquisition Transaction: Class B Restricted Shares"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many PUBM shares does the Birchwood Trust plan to sell?

The notice reports a proposed sale of 15,000 PubMatic common shares, with an aggregate market value of $285,300.00 and an approximate sale date of November 13, 2026.

What Rule 10b5-1 date is listed for the proposed PUBM sale?

The notice lists June 4, 2026 as the plan adoption or instruction date in the field for a sale relying on Rule 10b5-1.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001833508
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	PUBMATIC INC
SEC File Number	001-39748
Address of Issuer	601 MARSHALL STREET Redwood City CALIFORNIA 94063
Phone	6503313485
Name of Person for Whose Account the Securities are To Be Sold	THE BIRCHWOOD TRUST U/T/A DTD09/10/2012
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Director
Relationship to Issuer	Officer
Relationship to Issuer	10% Stockholder

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	15000	285300.00	37630887	11/13/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	11/24/2006	Class B Restricted Shares	Issuer			15000	11/24/2006	N/A

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
10b5-1 Sales for AMAR GOEL 601 MARSHALL STREET Redwood City CA 94063	Common	10/05/2026	10795	201487.60
AMAR GOEL 601 MARSHALL STREET Redwood City CA 94063	Common	10/02/2026	7302	138545.23
10b5-1 Sales for AMAR GOEL 601 MARSHALL STREET Redwood City CA 94063	Common	09/03/2026	6250	106526.88

144: Remarks and Signature

Remarks
Date of Notice	11/13/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	06/04/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Amar Goel
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)