Sec Form 4 Filing - Netzly Kyle @ Groupon, Inc. - 2026-07-30

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

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, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Netzly Kyle 2. Issuer Name and Ticker or Trading Symbol Groupon, Inc. [ GRPN] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Accounting Officer (Last) (First) (Middle) 35 W. WACKER, FLOOR 25 3. Date of Earliest Transaction (MM/DD/YY) 07/30/2026 (Street) CHICAGO, IL60601 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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) Code V Amount (A) or (D) Price Common Stock 07/30/2026 M 4,950 A $ 0 35,917 D Common Stock 07/30/2026 F 2,045 ( 1 ) D $ 27.89 33,872 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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 7. Title and Amount of Underlying Securities (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 of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Performance Share Units ( 2 ) 07/30/2026 M 4,950 ( 3 ) ( 3 ) Common Stock 4,950 $ 0 55,050 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Netzly Kyle 35 W. WACKER, FLOOR 25 CHICAGO, IL60601 Chief Accounting Officer Signatures /s/ Gina M. Chereck as attorney-in-fact for Kyle Netzly 08/03/2026 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Shares withheld to satisfy the mandatory tax withholding requirement upon the vesting of performance share units ("PSUs"). This is not an open market sale of securities. ( 2 )Each PSU represents a contingent right to receive one share of Groupon, Inc. (the "Issuer") common stock. ( 3 )The number of shares of common stock that will be acquired on vesting of the PSUs is contingent upon: (1) the achievement of pre-established stock price hurdles over a three-year performance period beginning on May 1, 2025, and ending on May 1, 2028; and (2) the achievement of continued service conditions measured on each of May 1, 2026, May 1, 2027, and May 1, 2028. The PSUs shall vest immediately upon certification of the achievement of both conditions by the Compensation Committee of the Issuer's Board of Directors (the "Committee"). On July 30, 2026, the Committee certified that the first pre-established stock price hurdle and the continued service condition measured as of May 1, 2026 have both been achieved, and 4,950 PSUs vested on July 30, 2026.

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).

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