Sec Form 4 Filing - Dinwoodie Anna Grace @ trivago N.V. - 2026-05-15

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 Dinwoodie Anna Grace 2. Issuer Name and Ticker or Trading Symbol trivago N.V. [ TRVG] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Financial Reporting Lead (Last) (First) (Middle) C/O TRIVAGO N.V., KESSELSTRASSE 5-7 3. Date of Earliest Transaction (MM/DD/YY) 05/15/2026 (Street) DUSSELDORF40221 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 American Depositary Shares ( 1 ) 05/15/2026 M 1,325 A $ 0 3,449 D American Depositary Shares ( 1 ) 05/15/2026 F( 2 ) 689 D $ 0 2,760 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 Restricted Stock Units $ 0 05/15/2026 M 375 ( 3 ) ( 4 ) American Depositary Shares ( 1 ) 375 $ 0 2,631 D Restricted Stock Units $ 0 05/15/2026 M 950 ( 5 ) ( 4 ) American Depositary Shares ( 1 ) 950 $ 0 9,500 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Dinwoodie Anna Grace C/O TRIVAGO N.V. KESSELSTRASSE 5-7 DUSSELDORF40221 Financial Reporting Lead Signatures /s/ Olga Mizikova, as Attorney-in-Fact 05/19/2026 Signature of Reporting Person Date

Explanation of Responses:

( 1 )One (1) American Depositary Share (ADS) represents five (5) Class A Shares. ( 2 )Represents American Depositary Shares of trivago N.V. withheld for payment of taxes due in connection with the vesting of restricted stock units. ( 3 )These Restricted Stock Units were granted on February 27, 2025 for a total of 4,506 units. 1/12th vested on May 15, 2025, and an additional 1/12th will vest quarterly on the vesting dates 15 February, 15 May, 15 August and 15 November thereafter until the award is fully vested, subject to continued service on such vesting date. ( 4 )RSUs do not have an Expiration Date. ( 5 )These Restricted Stock Units were granted on December 4, 2025 for a total of 11,400 units. 1/12th vested on February 15, 2026, and an additional 1/12th will vest quarterly on the vesting dates 15 February, 15 May, 15 August and 15 November thereafter until the award is fully vested, subject to continued service on such vesting 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).

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