[144] PubMatic, Inc. SEC Filing

Rhea-AI Filing Summary

PubMatic, Inc. disclosed a proposed insider sale under Rule 144: 10,460 shares of common stock through Morgan Stanley Smith Barney LLC on 10/03/2025. The shares were acquired as Restricted Stock Units on 10/01/2025 and the filing shows the same holder sold 10,874 shares on 10/02/2025 for $89,529.99. The filing lists 37,459,793 shares outstanding and an aggregate market value of $86,608.80 for the proposed sale. The notice includes the required representation that the seller is not aware of undisclosed material adverse information and identifies the executing broker and approximate sale date.

Positive

• 10,460 shares to be sold through Morgan Stanley Smith Barney LLC
• Securities were acquired as Restricted Stock Units, disclosed in the filing
• Broker and market identified: NASDAQ, supporting orderly market execution

Negative

• Insider sold 10,874 shares on 10/02/2025 for $89,529.99
• Proposed sale aggregate market value is reported as only $86,608.80, indicating a modest sale relative to outstanding shares

Insights

Securities Attorney

TL;DR: A Rule 144 notice documents an insider selling recently-granted RSUs via a broker under standard compliance representations.

Form 144 is the regulatory notice used when restricted or control securities are proposed to be sold under Rule 144. The filing states the securities were acquired as Restricted Stock Units and names the broker Morgan Stanley Smith Barney LLC, which supports orderly, compliant disposition.

The signer represents they lack undisclosed material adverse information; this is the usual attestation required to rely on Rule 144. There is no disclosure here of any trading plan adoption date that would indicate a 10b5-1 plan.

Equity Markets Analyst

TL;DR: An insider executed a near-term sale and filed a planned sale of 10,460 shares, with a prior sale of 10,874 shares recorded the day before.

The filing shows a proposed sale amount and identifies the executing broker and market ( NASDAQ ), which signals ordinary-market liquidity usage rather than a block trade. The aggregate market value reported for the proposed sale is $86,608.80.

This disclosure is material as a documented insider sale sequence, but the filing does not state any company-specific operational or financial developments.

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	10460	86608.80	37459793	10/03/2025	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	10/01/2025	Restricted Stock Units	Issuer			10460	10/01/2025	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
PAULINA KLIMENKO 601 MARSHALL STREET Redwood City CA 94063	Common	10/02/2025	10874	89529.99

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)

FAQ

What did PubMatic (PUBM) disclose in this Form 144?

The filing notifies a proposed sale of 10,460 common shares via Morgan Stanley Smith Barney LLC on 10/03/2025, acquired as Restricted Stock Units on 10/01/2025.

How many shares did the insider recently sell prior to this notice?

The filing shows the insider sold 10,874 shares on 10/02/2025 for $89,529.99.

What is the aggregate market value of the proposed sale?

The aggregate market value reported for the proposed 10,460 share sale is $86,608.80.

Who is the broker handling the proposed sale?

The seller identified Morgan Stanley Smith Barney LLC (Executive Financial Services, New York) as the broker.

How many shares outstanding does the filing list?

The filing lists 37,459,793 shares outstanding.