STOCK TITAN

PubMatic (NASDAQ: PUBM) president sells 8,000 shares, exercises derivatives

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

PubMatic, Inc. executive Mukul Kumar reported a combination of stock sales and derivative exercises. He sold 8,000 shares of Class A Common Stock in an open‑market transaction at a weighted average price of $11.9625 per share pursuant to a Rule 10b5‑1 trading plan. Following the sale, he directly held 100,869 shares of Class A Common Stock. Kumar also exercised and converted derivative securities involving Class B Common Stock into Class A Common Stock, reflecting compensation-related activity rather than additional market purchases.

Positive

  • None.

Negative

  • None.
Insider Kumar Mukul
Role PRESIDENT, ENGINEERING
Sold 8,000 shs ($96K)
Type Security Shares Price Value
Exercise Stock Option (Right to buy Class B Common Stock) 8,000 $0.00 --
Exercise Class B Common Stock 8,000 $0.00 --
Conversion Class B Common Stock 8,000 $0.00 --
Conversion Class A Common Stock 8,000 $0.00 --
Sale Class A Common Stock 8,000 $11.9625 $96K
Holdings After Transaction: Stock Option (Right to buy Class B Common Stock) — 39,000 shares (Direct, null); Class B Common Stock — 143,600 shares (Direct, null); Class A Common Stock — 108,869 shares (Direct, null)
Footnotes (1)
  1. Includes 1,384 shares of Class A Common Stock acquired by the Reporting Person pursuant to the Issuer's employee stock purchase plan. 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. Represents the weighted average sale price. The lowest price at which shares were sold was $11.67 and the highest price at which shares were sold was $12.12. 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. The options are fully vested. 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.
Shares sold 8,000 shares Class A Common Stock sold in open market
Sale price (weighted average) $11.9625 per share Open-market sale of Class A shares
Class A shares held after sale 100,869 shares Direct ownership following transactions
Derivative exercises/conversions 24,000 shares Exercise or conversion of derivative securities
Option exercise price $2.15 per share Stock option to buy Class B Common Stock
Class B shares after conversions 143,600 shares Direct Class B Common Stock holdings
Rule 10b5-1 trading plan financial
"The sales reported in this line item were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person"
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. The lowest price at which shares were sold was $11.67 and the highest price"
employee stock purchase plan financial
"Includes 1,384 shares of Class A Common Stock acquired by the Reporting Person pursuant to the Issuer's employee stock purchase plan"
An employee stock purchase plan is a company program that lets workers buy shares through small payroll deductions, often at a discount to the market price and after a set offering period. Think of it like a workplace savings plan that turns into ownership: it encourages employees to share in the company’s success and can create predictable buying or selling of stock that investors watch because it affects supply, demand and employee incentives.
Class B common stock financial
"Each share of Class B common stock held by the Issuer's executive officers, directors and their respective affiliates will convert automatically"
A class B common stock is one of multiple types of a company’s ordinary shares that carries specific rights—often different voting power or dividend priority—compared with other classes. For investors it matters because those differences affect how much influence you have over company decisions, the income you might receive, and how freely the shares trade; think of it like owning a car with different keys: some keys let you start the engine and open the trunk, others only unlock the door.
Stock Option (Right to buy Class B Common Stock) financial
"Stock Option (Right to buy Class B Common Stock)"
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SEC Form 4
FORM 4UNITED 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).
X
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)
Director10% Owner
XOfficer (give title below)Other (specify below)
PRESIDENT, ENGINEERING
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/02/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Class A Common Stock06/02/2026C8,000A$0108,869(1)D
Class A Common Stock06/02/2026S(2)8,000D$11.9625(3)100,869D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Option (Right to buy Class B Common Stock)$2.1506/02/2026M8,000 (4)05/01/2027Class B Common Stock8,000$039,000D
Class B Common Stock(5)06/02/2026M8,000 (5) (5)Class A Common Stock8,000$0143,600D
Class B Common Stock(5)06/02/2026C8,000 (5) (5)Class A Common Stock8,000$0135,600D
Explanation of Responses:
1. Includes 1,384 shares of Class A Common Stock acquired by the Reporting Person pursuant to the Issuer's employee stock purchase plan.
2. 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.
3. Represents the weighted average sale price. The lowest price at which shares were sold was $11.67 and the highest price at which shares were sold was $12.12. 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-Fact06/03/2026
** Signature of Reporting PersonDate
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)

FAQ

What did PubMatic (PUBM) executive Mukul Kumar report in this Form 4?

Mukul Kumar reported an open‑market sale and several derivative exercises. He sold 8,000 Class A shares and converted derivative and Class B holdings into Class A stock as part of compensation-related activity.

How many PubMatic (PUBM) shares did Mukul Kumar sell and at what price?

He sold 8,000 shares of PubMatic Class A Common Stock. The weighted average sale price was $11.9625 per share, with individual trades ranging from $11.67 to $12.12 according to the filing footnotes.

How many PubMatic (PUBM) Class A shares does Mukul Kumar hold after the transactions?

After the reported transactions, Mukul Kumar directly holds 100,869 shares of PubMatic Class A Common Stock. This figure reflects his position following the 8,000‑share open‑market sale disclosed in the Form 4.

Were Mukul Kumar’s PubMatic (PUBM) stock sales pre‑planned?

Yes. The filing states the sales were effected under a Rule 10b5‑1 trading plan adopted on March 3, 2026. Such plans pre‑schedule trades, making the timing more routine and less discretionary.

What derivative securities did Mukul Kumar exercise or convert in PubMatic (PUBM)?

He exercised and converted derivative securities tied to Class B Common Stock, including stock options with a $2.15 per‑share exercise price, resulting in acquisitions of additional Class A and Class B shares as disclosed in the transactions table.

Does Mukul Kumar still have derivative positions in PubMatic (PUBM) after these transactions?

The derivative section in the summary of the filing shows no remaining derivative positions. This suggests the reported exercises and conversions effectively cleared the derivative holdings visible in this Form 4.