Insider files to sell 11,784 shares of common stock

Paulina Klimenko filed a notice proposing the sale of 11,784 shares of Common Stock reported as restricted stock units to be sold through Morgan Stanley Smith Barney LLC.

Rhea-AI Filing Summary

Paulina Klimenko filed a notice proposing the sale of 11,784 shares of Common Stock reported as restricted stock units to be sold through Morgan Stanley Smith Barney LLC. The filing references an earlier sale of 12,091 shares on 04/02/2026 for $98,823.37.

Insights

Securities Compliance Analyst

Routine Form 144 notice of proposed insider sale; procedural filing, not an executed market trade.

Form 144 is a notification required when an affiliate intends to sell restricted or control securities. The filing lists 11,784 shares tied to restricted stock units and names a broker-dealer for execution.

Timing and actual execution depend on market activity and compliance with resale conditions; subsequent Form 4/transaction reports would show completed sales.

Key Figures

Proposed shares to sell: 11,784 shares Prior sale quantity: 12,091 shares Proceeds from prior sale: $98,823.37 +2 more

5 metrics

Proposed shares to sell 11,784 shares listed as securities to be sold (restricted stock units)

Prior sale quantity 12,091 shares sold during the past 3 months on <date>04/02/2026</date>

Proceeds from prior sale $98,823.37 aggregate amount shown for the 04/02/2026 sale

Amount shown near filing $97,453.68 numeric value present in filing excerpt (exact label in excerpt unclear)

Large numeric string present 39,142,185 numeric value appearing in the excerpt (context not explicitly labeled)

Key Terms

Form 144, Restricted Stock Units, Filer, Broker-dealer

4 terms

Form 144 regulatory

"144: Securities To Be Sold"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Restricted Stock Units financial

"Restricted Stock Units | Issuer"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Filer regulatory

"Filer Information | 144: Filer Information"

Broker-dealer financial

"Morgan Stanley Smith Barney LLC Executive Financial Services"

A broker-dealer is a licensed firm or individual that both executes trades on behalf of clients (acting as a broker) and buys or sells securities for its own account (acting as a dealer). Investors care because broker-dealers provide the plumbing of markets — they place orders, hold or move cash and securities, offer research or advice, and their stability and fees directly affect trade execution, costs, and the safety of client funds; think of them as a combined travel agent and taxi for your investments.

FAQ

What does PUBM's Form 144 by Paulina Klimenko mean?

It notifies the SEC of a planned sale of restricted securities. The filing shows 11,784 shares tied to restricted stock units to be sold through Morgan Stanley, signaling a planned, compliant resale rather than an immediate market execution.

How many shares did the filing say will be sold for PUBM?

The notice lists 11,784 shares of Common Stock as the securities to be sold. The filing also records a prior sale of 12,091 shares on 04/02/2026, with proceeds shown as $98,823.37.

Who is the broker handling the proposed PUBM sale?

The filing names Morgan Stanley Smith Barney LLC as the broker-dealer for execution. This indicates the sale is planned to be handled through a registered brokerage channel rather than an informal transfer.

Does this Form 144 mean the shares have already been sold?

No. Form 144 is a notice of an intended resale of restricted securities. The document reports a planned sale of 11,784 shares; completed transactions would appear in subsequent trade reports or Form 4 filings if required.

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

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Accepted by SEC EDGAR 04/06/2026 - 04:29 PM 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	6503313485
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	Officer

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	11784	97453.68	39142185	04/06/2026	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	04/01/2026	Restricted Stock Units	Issuer			11784	04/01/2026	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
PAULINA KLIMENKO 601 MARSHALL STREET Redwood City CA 94063	Common	04/02/2026	12091	98823.37

144: Remarks and Signature

Remarks
Date of Notice	04/06/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	05/08/2025
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)