PubMatic (PUBM) insider Lisa Gimbel plans 2,000-share stock sale under Form 144

Rhea-AI Filing Summary

Lisa Gimbel, a security holder of PubMatic, Inc., filed a notice of proposed sales of PubMatic common stock under Form 144. The filing lists a planned sale of 2,000 common shares through Morgan Stanley Smith Barney LLC with an aggregate market value of $35,300.00, expected to be sold on or after August 12, 2026 on the NASDAQ market. It also reports that 2,863 common shares were sold during the past three months on May 18, 2026 for $28,318.79. The shares to be sold are related to Restricted Stock Units issued on May 15, 2025.

Key Figures

Shares proposed for sale: 2,000 shares Aggregate market value of proposed sale: $35,300.00 Proposed sale date: 08/12/2026 +4 more

7 metrics

Shares proposed for sale 2,000 shares Common stock to be sold through Morgan Stanley Smith Barney LLC

Aggregate market value of proposed sale $35,300.00 Reported value for 2,000 common shares in the planned Form 144 sale

Proposed sale date 08/12/2026 Expected date for selling 2,000 PubMatic common shares on NASDAQ

Shares sold in past 3 months 2,863 shares Common shares sold on 05/18/2026 reported in the Form 144

Value of past 3‑month sale $28,318.79 Total proceeds from 2,863 shares sold on 05/18/2026

RSU grant date 05/15/2025 Restricted Stock Units related to the common shares being sold

Shares underlying RSUs listed 2,000 shares Common shares tied to Restricted Stock Units dated 05/15/2025

Key Terms

Form 144, Restricted Stock Units, Executive Financial Services, Rule 144

4 terms

Form 144 regulatory

"144: Securities Information Common | Morgan Stanley Smith Barney LLC"

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

"Common | 05/15/2025 | 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.

Executive Financial Services financial

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

Rule 144 regulatory

"144: Securities To Be Sold Common | Morgan Stanley Smith Barney LLC"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

FAQ

What stock sale is Lisa Gimbel planning for PubMatic (PUBM) under Form 144?

Lisa Gimbel plans to sell 2,000 shares of PubMatic common stock with an aggregate market value of $35,300.00. The shares are expected to be sold on or after August 12, 2026 through Morgan Stanley Smith Barney LLC on NASDAQ.

What prior PubMatic (PUBM) stock sales does Lisa Gimbel disclose in this Form 144?

The filing discloses that 2,863 common shares of PubMatic were sold on May 18, 2026 for total proceeds of $28,318.79. This transaction is reported as securities sold during the past three months before the planned sale.

What type of PubMatic (PUBM) securities is Lisa Gimbel selling under this Form 144?

The securities are PubMatic common stock, associated with Restricted Stock Units granted on May 15, 2025. The Form 144 reflects proposed sales of shares underlying these equity awards rather than a new issuance by the company.

On which market will Lisa Gimbel’s planned PubMatic (PUBM) share sale occur?

The proposed sale of 2,000 PubMatic common shares is expected to occur on the NASDAQ market. Morgan Stanley Smith Barney LLC Executive Financial Services is listed as the broker handling the transaction from its New York office.

What is the aggregate market value of Lisa Gimbel’s planned PubMatic (PUBM) stock sale?

The Form 144 reports an aggregate market value of $35,300.00 for the planned sale of 2,000 PubMatic common shares. This value reflects the market price used for the notice of proposed sale under Rule 144 requirements.

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

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Available on EDGAR 08/12/2026 - 04:37 PM Accepted by SEC EDGAR 08/12/2026 - 04:37 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
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	2000	35300.00	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	05/15/2025	Restricted Stock Units	Issuer			2000	05/15/2025	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
LISA GIMBEL 601 MARSHALL STREET Redwood City CA 94063	Common	05/18/2026	2863	28318.79

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)