PubMatic (PUBM) insider Steve Pantelick plans sale of 22,203 common shares

Rhea-AI Filing Summary

PUBM insider Steve Pantelick filed a notice of proposed sale of up to 22,203 shares of common stock through Morgan Stanley Smith Barney LLC Executive Financial Services, with the shares listed on Nasdaq. The filing also lists prior sales in the last three months of 12,548 shares for $168,336.44 on July 6, 2026 and 23,548 shares for $321,394.88 on July 2, 2026 under a 10b5-1 sales plan.

Key Figures

Proposed shares to be sold: 22,203 shares Recent sale 1: 12,548 shares for $168,336.44 Recent sale 2: 23,548 shares for $321,394.88 +1 more

4 metrics

Proposed shares to be sold 22,203 shares Common stock proposed for sale through Morgan Stanley Smith Barney LLC Executive Financial Services

Recent sale 1 12,548 shares for $168,336.44 Common stock sale dated 07/06/2026 under a 10b5-1 sales plan

Recent sale 2 23,548 shares for $321,394.88 Common stock sale dated 07/02/2026 under a 10b5-1 sales plan

Grant-related reference date 04/01/2026 Date associated with Restricted Stock Units referenced in the securities to be sold

Key Terms

Restricted Stock Units, 10b5-1 Sales Plan, Executive Financial Services

3 terms

Restricted Stock Units financial

"Common | 04/01/2026 | 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.

10b5-1 Sales Plan financial

"10b5-1 Sales Plan for STEVE PANTELICK 601 MARSHALL STREET"

A 10b5-1 sales plan is a written, prearranged schedule that company insiders use to buy or sell their employer’s stock under a U.S. securities rule, so trades occur automatically at set times or prices regardless of later private information. It matters to investors because it reduces the risk of insider-trading accusations and signals that certain insider trades were planned ahead—like putting transactions on autopilot—while still affecting share supply and market confidence.

Executive Financial Services financial

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

FAQ

What does PUBM's Form 144 filing by Steve Pantelick disclose?

The filing discloses a proposed sale of 22,203 shares of PUBM common stock through Morgan Stanley Smith Barney LLC, along with details of prior sales made under a 10b5-1 sales plan during the past three months.

How many PUBM shares is Steve Pantelick planning to sell?

Steve Pantelick plans to sell up to 22,203 shares of PUBM common stock. This figure appears in the securities information section describing the proposed transaction to be executed via Morgan Stanley Smith Barney LLC Executive Financial Services.

What recent PUBM stock sales by Steve Pantelick are listed in the Form 144?

The filing lists two recent sales: 12,548 shares for $168,336.44 on July 6, 2026 and 23,548 shares for $321,394.88 on July 2, 2026, both involving PUBM common stock under a 10b5-1 sales plan.

Is Steve Pantelick’s PUBM stock sale under a 10b5-1 trading plan?

Yes. The securities sold during the past three months are specifically referenced under a 10b5-1 Sales Plan for Steve Pantelick, indicating that the disclosed PUBM sales followed a pre-established trading plan.

What type of PUBM security is involved in Steve Pantelick’s Form 144 filing?

The filing involves PUBM common stock, including shares linked to Restricted Stock Units originally dated April 1, 2026, and now covered in the proposed and historical sales disclosures.

On which market is the PUBM stock in this Form 144 listed?

The common stock referenced in Steve Pantelick’s Form 144 filing is listed on NASDAQ, as indicated in the securities information section describing the proposed sale of PUBM shares.

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Available on EDGAR 08/12/2026 - 04:31 PM Accepted by SEC EDGAR 08/12/2026 - 04:30 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	22203	391882.95	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	04/01/2026	Restricted Stock Units	Issuer			22203	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
10b5-1 Sales Plan for STEVE PANTELICK 601 MARSHALL STREET Redwood City CA 94063	Common	07/06/2026	12548	168336.44
STEVE M PANTELICK 601 MARSHALL STREET Redwood City CA 94063	Common	07/02/2026	23548	321394.88

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)