Sec Form 4 Filing - Flanagan Mimi @ Zapata Computing Holdings Inc. - 2024-03-28

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 Flanagan Mimi 2. Issuer Name and Ticker or Trading Symbol Zapata Computing Holdings Inc. [ ZPTA] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Financial Officer (Last) (First) (Middle) 100 FEDERAL STREET, 20TH FLOOR 3. Date of Earliest Transaction (MM/DD/YY) 03/28/2024 (Street) BOSTON, MA02110 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 03/28/2024 A 13,140 A 13,140 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 Stock Option (Right to Buy) $ 2.02 03/28/2024 A 21,139 ( 2 ) 03/24/2031 Common Stock 21,139 ( 3 ) 21,139 D Stock Option (Right to Buy) $ 2.02 03/28/2024 A 45,705 ( 4 ) 02/04/2031 Common Stock 45,705 ( 5 ) 45,705 D Stock Option (Right to Buy) $ 2.7 03/28/2024 A 102,838 ( 6 ) 10/13/2031 Common Stock 102,838 ( 7 ) 102,838 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Flanagan Mimi 100 FEDERAL STREET 20TH FLOOR BOSTON, MA02110 Chief Financial Officer Signatures /s/ Stacie S. Aarestad, Attorney-in-Fact 04/01/2024 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Received in accordance with the terms of the Business Combination Agreement (the "Business Combination Agreement"), dated as of September 6, 2023, by and among Andretti Acquisition Corp., Tigre Merger Sub, Inc. and Zapata Computing, Inc. ("Private Zapata"), in exchange for 14,375 shares of common stock of Private Zapata. ( 2 )The option became or will become exercisable in equal monthly installments over four years from January 26, 2021. ( 3 )Received in accordance with the terms of the Business Combination Agreement in exchange for an option to acquire 23,125 shares of common stock of Private Zapata at a purchase price of $1.84 per share. ( 4 )The option became or will become exercisable over four years from January 26, 2021, with 25% vested on January 26, 2022 and the remainder vesting in equal monthly installments thereafter. ( 5 )Received in accordance with the terms of the Business Combination Agreement in exchange for an option to acquire 50,000 shares of common stock of Private Zapata at a purchase price of $1.84 per share. ( 6 )The option became or will become exercisable in equal monthly installments over four years from October 1, 2021. ( 7 )Received in accordance with the terms of the Business Combination Agreement in exchange for an option to acquire 112,500 shares of common stock of Private Zapata at a purchase price of $2.46 per share.

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).

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