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PubMatic CFO Steven Pantelick sells 50,000 shares

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Form Type
4

Rhea-AI Filing Summary

PubMatic, Inc. (PUBM) Chief Financial Officer Steven Pantelick converted 50,000 Class B Common Stock shares into Class A shares on November 12, 2026, then reported sales totaling 50,000 Class A shares: 24,500 at a weighted-average $18.4849 and 25,500 at $18.9283. The reported sale-price ranges were $17.7776-$18.77 and $18.78-$19.14, respectively. No Rule 10b5-1 plan is reported.

Insider Pantelick Steven
Role CHIEF FINANCIAL OFFICER
Sold 50,000 shs ($936K)
Approx. gross sale proceeds $936K
Type Security Shares Price Value
Conversion Class B Common Stock F3 50,000 $0.00 $0.00
Conversion Class A Common Stock 50,000 $0.00 $0.00
Sale Class A Common Stock F1 24,500 $18.4849 $453K
Sale Class A Common Stock F2 25,500 $18.9283 $483K
Holding Class B Common Stock F3 -- -- --
Holding Class B Common Stock F3, F4 -- -- --
Holding Class B Common Stock F3, F5 -- -- --
Holdings After Transaction: Class B Common Stock — 247,488 shares (Direct); Class A Common Stock — 10,353 shares (Direct); Class B Common Stock — 73,464 shares (Indirect, By spouse); Class B Common Stock — 41,536 shares (Indirect, By PSLT DE LLC); Class B Common Stock — 115,000 shares (Indirect, By SMP DE LLC)
Footnotes (5)
  1. F1. The price reported in this line item is a weighted average price. These shares were sold at prices ranging from $17.7776 to $18.77, inclusive. The Reporting Person undertakes to provide to the Issuer, any securityholder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.
  2. F2. The price reported in this line item is a weighted average price. These shares were sold at prices ranging from $18.78 to $19.14, inclusive. The Reporting Person undertakes to provide to the Issuer, any securityholder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.
  3. F3. Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.
  4. F4. The Reporting Person and his children are beneficiaries of PSLT DE LLC.
  5. F5. The Reporting Person's spouse and his children are beneficiaries of SMP DE LLC.
Class B shares converted 50,000 shares Converted into Class A Common Stock on November 12, 2026
First Class A sale 24,500 shares; weighted-average $18.4849 per share November 12, 2026; reported price range $17.7776-$18.77
Second Class A sale 25,500 shares; weighted-average $18.9283 per share November 12, 2026; reported price range $18.78-$19.14
Direct Class B holdings 247,488 shares Reported following the transaction
Class B holdings through spouse 73,464 shares Indirect holding reported following the transaction
Class B holdings through PSLT DE LLC 41,536 shares Indirect holding reported following the transaction
Class B holdings through SMP DE LLC 115,000 shares Indirect holding reported following the transaction
weighted average price financial
"the weighted average price reported for the 24,500-share sale"
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
Class B Common Stock technical
"each share of Class B Common Stock is convertible into one share of Class A Common Stock"
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.
convertible technical
"convertible into one share of Class A Common Stock at the option of the holder"
A convertible is a type of investment that starts as a loan or preferred stake (like a bond or preferred share) but can be exchanged for common shares of the company at a set price or under certain conditions. It matters to investors because it offers a mix of steady income and downside protection like a loan, plus the upside of stock ownership if the company does well—similar to holding a coupon that you can trade for a full ticket if the event becomes valuable.

FAQ

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

How many PUBM shares did Steven Pantelick sell, and at what prices?

Steven Pantelick, PubMatic's chief financial officer, reported selling 50,000 Class A shares on November 12, 2026: 24,500 at a weighted-average $18.4849 and 25,500 at a weighted-average $18.9283. The reported price ranges were $17.7776-$18.77 and $18.78-$19.14, respectively; no Rule 10b5-1 plan is reported.

How many PUBM Class B shares remained after Steven Pantelick's conversion?

Pantelick's reported direct Class B position after the conversion was 247,488 shares. Separate Class B holdings were listed through his spouse (73,464 shares), PSLT DE LLC (41,536) and SMP DE LLC (115,000). He and his children are beneficiaries of PSLT DE LLC, while his spouse and children are beneficiaries of SMP DE LLC. Each Class B share is convertible at the holder's option into one Class A share and has no expiration date.

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

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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).
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*
Pantelick Steven

(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)
CHIEF FINANCIAL OFFICER
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
11/12/2026
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 Stock11/12/2026C50,000A$060,353D
Class A Common Stock11/12/2026S24,500D$18.4849(1)35,853D
Class A Common Stock11/12/2026S25,500D$18.9283(2)10,353D
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
Class B Common Stock(3)11/12/2026C50,000 (3) (3)Class A Common Stock50,000$0247,488D
Class B Common Stock(3) (3) (3)Class A Common Stock73,46473,464IBy spouse
Class B Common Stock(3) (3) (3)Class A Common Stock41,53641,536IBy PSLT DE LLC(4)
Class B Common Stock(3) (3) (3)Class A Common Stock115,000115,000IBy SMP DE LLC(5)
Explanation of Responses:
1. The price reported in this line item is a weighted average price. These shares were sold at prices ranging from $17.7776 to $18.77, inclusive. The Reporting Person undertakes to provide to the Issuer, any securityholder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.
2. The price reported in this line item is a weighted average price. These shares were sold at prices ranging from $18.78 to $19.14, inclusive. The Reporting Person undertakes to provide to the Issuer, any securityholder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.
3. Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.
4. The Reporting Person and his children are beneficiaries of PSLT DE LLC.
5. The Reporting Person's spouse and his children are beneficiaries of SMP DE LLC.
/s/ Andrew Woods, Attorney-in-Fact11/13/2026
** 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)

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