PubMatic's Mukul Kumar exercises 8,000 options

Q: How many PUBM options did Mukul Kumar exercise, and at what price?

Mukul Kumar exercised 8,000 fully vested options at $2.15 per share to acquire Class B common stock. The shares converted into Class A common stock, and his reported option position afterward was 7,000.

PubMatic's President, Engineering made the reported sales under a Rule 10b5-1 plan adopted March 3, 2026.

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Rhea-AI Filing Summary

At PubMatic, Inc., President, Engineering Mukul Kumar exercised 8,000 fully vested options at $2.15 per share to acquire Class B common stock; his reported option position afterward was 7,000. The 8,000 Class B shares converted into Class A shares, and Kumar sold 5,400 at a weighted average of $16.8045 per share and 2,600 at a weighted average of $17.7848 per share on October 16, 2026. The sales were made under a Rule 10b5-1 trading plan adopted March 3, 2026.

Insider Trade Summary 10b5-1

Exercise and sale activity reported; no spread calculated

Exercise and Sale 6 txns

Insider Kumar Mukul

Role PRESIDENT, ENGINEERING

Sold 8,000 shs ($137K)

Approx. gross sale proceeds $137K

Type	Security	Shares	Price	Value
Exercise	Stock Option (Right to buy Class B Common Stock) ^F4	8,000	$0.00	$0.00
Exercise	Class B Common Stock ^F5	8,000	$2.15	$17K
Conversion	Class B Common Stock ^F5	8,000	$0.00	$0.00
Conversion	Class A Common Stock	8,000	$0.00	$0.00
Sale	Class A Common Stock ^{F1, F2}	5,400	$16.8045	$91K
Sale	Class A Common Stock ^{F1, F3}	2,600	$17.7848	$46K

Holdings After Transaction: Stock Option (Right to buy Class B Common Stock) — 7,000 contracts (Direct); Class B Common Stock — 135,600 contracts (Direct); Class A Common Stock — 117,041 shares (Direct)

Footnotes (5)

F1. The sales reported in this line item were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 3, 2026.
F2. Represents the weighted average sale price. The lowest price at which shares were sold was $16.53 and the highest price at which shares were sold was $17.52. The Reporting Person undertakes to provide upon request to the staff of the Securities and Exchange Commission, the Issuer or its stockholders, full information regarding the total number of shares sold at each separate price within the range set forth herein.
F3. Represents the weighted average sale price. The lowest price at which shares were sold was $17.57 and the highest price at which shares were sold was $18.02. The Reporting Person undertakes to provide upon request to the staff of the Securities and Exchange Commission, the Issuer or its stockholders, full information regarding the total number of shares sold at each separate price within the range set forth herein.
F4. The options are fully vested.
F5. Each share of Class B common stock held by the Issuer's executive officers, directors and their respective affiliates will convert automatically into one share of Class A common stock upon any transfer that occurs after the closing of the Issuer's initial public offering, except for certain permitted transfers.

Key Figures

Options exercised: 8,000 options Exercise price: $2.15 per share Options following transaction: 7,000 options +4 more

7 metrics

Options exercised 8,000 options October 16, 2026; to acquire Class B common stock

Exercise price $2.15 per share Options exercised October 16, 2026

Options following transaction 7,000 options Reported after the October 16, 2026 transaction

Class A shares sold 5,400 shares October 16, 2026; weighted average sale price $16.8045 per share

Weighted average sale price $16.8045 per share 5,400 Class A shares sold October 16, 2026

Class A shares sold 2,600 shares October 16, 2026; weighted average sale price $17.7848 per share

Weighted average sale price $17.7848 per share 2,600 Class A shares sold October 16, 2026

Key Terms

Rule 10b5-1 trading plan, weighted average sale price, fully vested, convert automatically

4 terms

Rule 10b5-1 trading plan regulatory

"effected pursuant to a Rule 10b5-1 trading plan"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

weighted average sale price financial

"Represents the weighted average sale price"

fully vested financial

"The options are fully vested"

convert automatically technical

"will convert automatically into one share of Class A common stock"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many PUBM shares did the President, Engineering sell, and at what prices?

On October 16, 2026, Mukul Kumar sold 5,400 Class A shares at a weighted average of $16.8045 per share and 2,600 at a weighted average of $17.7848 per share. The respective sale-price ranges were $16.53 to $17.52 and $17.57 to $18.02. The sales were made under a Rule 10b5-1 plan adopted March 3, 2026.

How many PUBM options did Mukul Kumar exercise, and at what price?

Mukul Kumar exercised 8,000 fully vested options at $2.15 per share to acquire Class B common stock. The shares converted into Class A common stock, and his reported option position afterward was 7,000.

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

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Available on EDGAR 10/19/2026 - 04:10 PM EDT Accepted by SEC EDGAR 10/19/2026 - 04:09 PM EDT

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^*

Kumar Mukul

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/16/2026

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)
Class A Common Stock	10/16/2026		C		8,000	A	$0	133,041	D
Class A Common Stock	10/16/2026		S⁽¹⁾		5,400	D	$16.8045⁽²⁾	125,041	D
Class A Common Stock	10/16/2026		S⁽¹⁾		2,600	D	$17.7848⁽³⁾	117,041	D

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)
Stock Option (Right to buy Class B Common Stock)	$2.15	10/16/2026		M			8,000	⁽⁴⁾	05/01/2027	Class B Common Stock	8,000	$0	7,000	D
Class B Common Stock	⁽⁵⁾	10/16/2026		M		8,000		⁽⁵⁾	⁽⁵⁾	Class A Common Stock	8,000	$2.15	143,600	D
Class B Common Stock	⁽⁵⁾	10/16/2026		C			8,000	⁽⁵⁾	⁽⁵⁾	Class A Common Stock	8,000	$0	135,600	D

Explanation of Responses:

1. The sales reported in this line item were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 3, 2026.

2. Represents the weighted average sale price. The lowest price at which shares were sold was $16.53 and the highest price at which shares were sold was $17.52. The Reporting Person undertakes to provide upon request to the staff of the Securities and Exchange Commission, the Issuer or its stockholders, full information regarding the total number of shares sold at each separate price within the range set forth herein.

3. Represents the weighted average sale price. The lowest price at which shares were sold was $17.57 and the highest price at which shares were sold was $18.02. The Reporting Person undertakes to provide upon request to the staff of the Securities and Exchange Commission, the Issuer or its stockholders, full information regarding the total number of shares sold at each separate price within the range set forth herein.

4. The options are fully vested.

5. Each share of Class B common stock held by the Issuer's executive officers, directors and their respective affiliates will convert automatically into one share of Class A common stock upon any transfer that occurs after the closing of the Issuer's initial public offering, except for certain permitted transfers.

	/s/ Andrew Woods, Attorney-in-Fact	10/19/2026
	** 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