PUBM insider plans sale of 40,000 shares

PUBM insider Paulina Klimenko has filed a Form 144 indicating an intention to sell up to 40,000 shares of common stock through Morgan Stanley Smith Barney LLC Executive Financial Services at 1 New York Plaza, New York.

Rhea-AI Filing Summary

PUBM insider Paulina Klimenko has filed a Form 144 indicating an intention to sell up to 40,000 shares of common stock through Morgan Stanley Smith Barney LLC Executive Financial Services at 1 New York Plaza, New York. The proposed aggregate sale amount is $687,872.00, with trading referenced to NASDAQ on or after 08/12/2026. The shares relate to multiple tranches of restricted stock vesting under a registered plan for services rendered between 2024 and 2025. Over the past three months, Klimenko has sold 9,254, 14,914, and 9,009 shares of common stock for proceeds of $124,175.00, $203,553.73, and $120,518.00, respectively.

Key Figures

Planned shares to be sold: 40,000 shares Proposed aggregate sale amount: $687,872.00 Shares sold 07/01/2026: 9,254 shares +5 more

8 metrics

Planned shares to be sold 40,000 shares Common stock under Form 144 through Morgan Stanley Smith Barney LLC

Proposed aggregate sale amount $687,872.00 Planned sale of 40,000 common shares

Shares sold 07/01/2026 9,254 shares Common stock sale by Paulina Klimenko

Proceeds 07/01/2026 sale $124,175.00 Sale of 9,254 common shares

Shares sold 07/02/2026 14,914 shares Common stock sale by Paulina Klimenko

Proceeds 07/02/2026 sale $203,553.73 Sale of 14,914 common shares

Shares sold 07/06/2026 9,009 shares Common stock sale by Paulina Klimenko

Proceeds 07/06/2026 sale $120,518.00 Sale of 9,009 common shares

Key Terms

Restricted Stock Vesting Under a Registered Plan, services rendered, Executive Financial Services, Securities Sold During The Past 3 Months, +1 more

5 terms

Restricted Stock Vesting Under a Registered Plan financial

"Common | 04/01/2024 | Restricted Stock Vesting Under a Registered Plan | Issuer"

services rendered financial

"1676 | 04/01/2024 | Services Rendered Common | 04/01/2024"

Executive Financial Services financial

"Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza"

Securities Sold During The Past 3 Months regulatory

"144: Securities Sold During The Past 3 Months"

Common financial

"COMMON | 07/06/2026 | 9009 | 120518.00"

FAQ

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

What is PUBM insider Paulina Klimenko planning to sell under this Form 144?

PUBM insider Paulina Klimenko plans to sell up to 40,000 shares of common stock. The proposed aggregate sale amount is $687,872.00, with sales referenced to NASDAQ starting on or after 08/12/2026.

Which broker is handling the planned Form 144 stock sale for PUBM?

The planned PUBM stock sale is through Morgan Stanley Smith Barney LLC Executive Financial Services. The broker’s address is listed as 1 New York Plaza, 8th Floor, New York, NY 10004 in the Form 144 information.

How many PUBM shares has Paulina Klimenko sold in the past three months?

Over the past three months, Paulina Klimenko sold 9,254, 14,914, and 9,009 PUBM common shares. These transactions occurred on 07/01/2026, 07/02/2026, and 07/06/2026, respectively, as listed in the Form 144 data.

What dollar amounts did PUBM insider Paulina Klimenko receive from recent share sales?

Recent PUBM share sales by Paulina Klimenko generated $124,175.00, $203,553.73, and $120,518.00. These proceeds correspond to sales of 9,254, 14,914, and 9,009 common shares on three July 2026 transaction dates.

What is the origin of the PUBM shares listed for sale by Paulina Klimenko?

The shares listed relate to restricted stock vesting under a registered plan for services rendered. Multiple vesting dates are shown between 04/01/2024 and 07/01/2025, each associated with specific numbers of PUBM common shares.

When does the planned PUBM stock sale under Form 144 begin?

The planned PUBM stock sale is tied to a proposed sale date of 08/12/2026. On or after this date, up to 40,000 PUBM common shares may be sold through Morgan Stanley Smith Barney LLC Executive Financial Services.

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

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Accepted by SEC EDGAR 08/12/2026 - 04:14 PM EDT Learn about SEC filing dates

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	0001974892
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	650-331-3485
Name of Person for Whose Account the Securities are To Be Sold	PAULINA KLIMENKO
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

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	40000	687872.00	37303647	08/12/2026	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	04/01/2024	Restricted Stock Vesting Under a Registered Plan	Issuer			1676	04/01/2024	Services Rendered
Common	04/01/2024	Restricted Stock Vesting Under a Registered Plan	Issuer			1349	04/01/2024	Services Rendered
Common	07/01/2024	Restricted Stock Vesting Under a Registered Plan	Issuer			1255	07/01/2024	Services Rendered
Common	07/01/2024	Restricted Stock Vesting Under a Registered Plan	Issuer			98	07/01/2024	Services Rendered
Common	07/01/2024	Restricted Stock Vesting Under a Registered Plan	Issuer			1671	07/01/2024	Services Rendered
Common	09/30/2024	Restricted Stock Vesting Under a Registered Plan	Issuer			569	09/30/2024	Services Rendered
Common	10/01/2024	Restricted Stock Vesting Under a Registered Plan	Issuer			3225	10/01/2024	Services Rendered
Common	10/01/2024	Restricted Stock Vesting Under a Registered Plan	Issuer			1443	10/01/2024	Services Rendered
Common	10/01/2024	Restricted Stock Vesting Under a Registered Plan	Issuer			3275	10/01/2024	Services Rendered
Common	12/31/2024	Restricted Stock Vesting Under a Registered Plan	Issuer			579	12/31/2024	Services Rendered
Common	01/01/2025	Restricted Stock Vesting Under a Registered Plan	Issuer			1881	01/01/2025	Services Rendered
Common	01/01/2025	Restricted Stock Vesting Under a Registered Plan	Issuer			3950	01/01/2025	Services Rendered
Common	01/01/2025	Restricted Stock Vesting Under a Registered Plan	Issuer			3911	01/01/2025	Services Rendered
Common	04/01/2025	Restricted Stock Vesting Under a Registered Plan	Issuer			1930	04/01/2025	Services Rendered
Common	07/01/2025	Restricted Stock Vesting Under a Registered Plan	Issuer			3318	07/01/2025	Services Rendered
Common	07/01/2025	Restricted Stock Vesting Under a Registered Plan	Issuer			4247	07/01/2025	Services Rendered
Common	07/01/2025	Restricted Stock Vesting Under a Registered Plan	Issuer			1440	07/01/2025	Services Rendered
Common	07/01/2025	Restricted Stock Vesting Under a Registered Plan	Issuer			4183	07/01/2025	Services Rendered

* 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
PAULINA KLIMENKO 3 Lagoon Drive, Suite 180 Redwood City CA 94065	COMMON	07/06/2026	9009	120518.00
Klimenko Paulina 3 Lagoon Drive, Suite 180 Redwood City CA 94065	COMMON	07/02/2026	14914	203553.73
PAULINA KLIMENKO 3 Lagoon Drive, Suite 180 Redwood City CA 94065	COMMON	07/01/2026	9254	124175.00

144: Remarks and Signature

Remarks
Date of Notice	08/12/2026
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/ Paulina Klimenko
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)