PubMatic (PUBM) director Anton Hanebrink granted 15,811 deferred RSUs

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

Hanebrink Anton reported acquisition or exercise transactions in this Form 4 filing.

PubMatic, Inc. director Anton Hanebrink received a grant of 15,811 restricted stock units. Each RSU represents the right to receive one share of Class A Common Stock. These RSUs vest in full on the earliest of the first anniversary of the grant date, immediately before the 2026 annual stockholders’ meeting, the director’s death or disability, or a change in control of the company. Hanebrink has elected to defer settlement so that shares will only be delivered upon death or disability, a change in control, or separation of service. This is a compensation-related equity award rather than an open-market share purchase or sale.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Hanebrink Anton

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units	15,811	$0.00	--

Holdings After Transaction: Restricted Stock Units — 15,811 shares (Direct)

Footnotes (1)

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock upon settlement. The RSUs vest in full on the earliest to occur of (a) the first anniversary of the grant date, (b) immediately prior to the Company's annual meeting of stockholders in 2026, (c) the Reporting Person's death or disability, and (d) a change in control of the Issuer. The Reporting Person has elected to defer settlement of the RSUs until the earliest to occur of (i) the Reporting Person's death or disability, (ii) a change in control of the Issuer, and (iii) the Reporting Person's separation of service from the Issuer. Shares of the Issuer's Class A Common Stock will be delivered to the Reporting Person upon settlement of the RSUs. RSUs do not expire; they either vest or are cancelled prior to vesting date.

Key Figures

RSUs granted: 15,811 units Grant price per RSU: $0.00 RSUs held after grant: 15,811 units

3 metrics

RSUs granted 15,811 units Grant of restricted stock units to director on May 30, 2025

Grant price per RSU $0.00 Stated transaction price per restricted stock unit

RSUs held after grant 15,811 units Total RSUs directly owned following the reported transaction

Key Terms

Restricted Stock Units, Class A Common Stock, change in control, separation of service, +1 more

5 terms

Restricted Stock Units financial

"security_title: "Restricted Stock Units" and related footnotes describing RSUs"

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.

Class A Common Stock financial

"Each RSU represents a contingent right to receive one share of Class A Common Stock"

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

change in control financial

"vest in full on ... a change in control of the Issuer"

A "change in control" occurs when the ownership or management of a company shifts significantly, such as through a merger, acquisition, or sale of a large part of its assets. This change can impact how the company is run and may influence its future direction. For investors, it matters because it can affect the company's stability, strategy, and value, often signaling potential changes in investment risk or opportunity.

separation of service financial

"earliest to occur of ... the Reporting Person's separation of service from the Issuer"

defer settlement financial

"The Reporting Person has elected to defer settlement of the RSUs"

Form 4 Insider Transactions: What Each Field Means →

04/14/2026 - 05:41 PM

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Hanebrink Anton

(Last)

(First)

(Middle)

C/O PUBMATIC, INC.

601 MARSHALL STREET

(Street)

REDWOOD CITY

CALIFORNIA

94063

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
PubMatic, Inc. [ PUBM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/30/2025

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Stock Units	⁽¹⁾	05/30/2025		A		15,811		⁽²⁾	⁽³⁾	Class A Common Stock	15,811	$0	15,811	D

Explanation of Responses:

1. Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock upon settlement.

2. The RSUs vest in full on the earliest to occur of (a) the first anniversary of the grant date, (b) immediately prior to the Company's annual meeting of stockholders in 2026, (c) the Reporting Person's death or disability, and (d) a change in control of the Issuer. The Reporting Person has elected to defer settlement of the RSUs until the earliest to occur of (i) the Reporting Person's death or disability, (ii) a change in control of the Issuer, and (iii) the Reporting Person's separation of service from the Issuer. Shares of the Issuer's Class A Common Stock will be delivered to the Reporting Person upon settlement of the RSUs.

3. RSUs do not expire; they either vest or are cancelled prior to vesting date.

	/s/ Andrew Woods, Attorney-in-Fact	04/14/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did PubMatic (PUBM) report for Anton Hanebrink?

PubMatic reported that director Anton Hanebrink received a grant of 15,811 restricted stock units. Each RSU entitles him to one share of Class A Common Stock upon future settlement, making this a compensation-related equity award rather than a market purchase or sale.

How many PubMatic (PUBM) RSUs did Anton Hanebrink receive in this Form 4?

Anton Hanebrink received 15,811 restricted stock units from PubMatic. After this grant, his reported direct holdings in these RSUs total 15,811 units, all tied to future vesting and settlement conditions instead of immediate delivery of Class A Common Stock shares.

At what price were the PubMatic (PUBM) RSUs granted to Anton Hanebrink?

The restricted stock units granted to Anton Hanebrink have a stated price of $0.00 per unit. This reflects that RSUs are a form of stock-based compensation, granting rights to future shares rather than involving an immediate cash transaction or open-market purchase.

When do Anton Hanebrink’s PubMatic (PUBM) RSUs vest according to the filing?

The RSUs vest in full on the earliest of the first anniversary of the grant date, immediately before PubMatic’s 2026 annual stockholders’ meeting, Hanebrink’s death or disability, or a change in control. These multiple triggers provide several potential vesting events for the award.

When will PubMatic (PUBM) shares be delivered for Anton Hanebrink’s RSUs?

Shares underlying the RSUs will be delivered only upon settlement, which Hanebrink has elected to defer until the earliest of his death or disability, a change in control of PubMatic, or his separation of service, turning this into a deferred equity compensation arrangement.

Do Anton Hanebrink’s PubMatic (PUBM) RSUs expire if they do not vest?

The filing states that PubMatic RSUs do not have an expiration date. They either vest according to their specified conditions or are cancelled before the vesting date, meaning there is no separate time-based expiration apart from vesting or cancellation.