Sec Form 4 Filing - SEAPORT GLOBAL ASSET MANAGEMENT LLC @ ScanTech AI Systems Inc. - 2025-02-18

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 SEAPORT GLOBAL ASSET MANAGEMENT LLC 2. Issuer Name and Ticker or Trading Symbol ScanTech AI Systems Inc. [ STAI] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 360 MADISON AVENUE 3. Date of Earliest Transaction (MM/DD/YY) 02/18/2025 (Street) NEW YORK, NY10017 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, par value $0.0001 per share 02/18/2025 C 303,951 A $ 9.87 5,858,743 I See footnote ( 1 ) Common Stock, par value $0.0001 per share 02/18/2025 J( 2 ) 2,249,230 A 8,107,973 I See footnote ( 1 ) Common Stock, par value $0.0001 per share 04/02/2025 X 3,000,000 A $ 0.01 11,107,973 I See footnote ( 1 ) Common Stock, par value $0.0001 per share 04/02/2025 J( 2 ) 200,000 A 11,307,973 I See footnote ( 1 ) Common Stock, par value $0.0001 per share 04/17/2025 J( 2 ) 5,350,000 A 16,657,973 I See footnote ( 1 )

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 Convertible Promissory Note $ 0 02/18/2025 C 1,000,000 ( 2 ) ( 2 ) Common Stock 303,951 $ 1,000,000 0 I See footnote ( 1 ) Warrant (right to buy) $ 0.01 02/18/2025 J( 3 ) 3,000,000 02/18/2025 02/18/2026 Common Stock 3,000,000 ( 3 ) 3,000,000 I See footnote ( 1 ) Warrant (right to buy) $ 0.01 04/02/2025 X 3,000,000 02/18/2025 02/18/2026 Common Stock 3,000,000 $ 0 0 I See footnote ( 1 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other SEAPORT GLOBAL ASSET MANAGEMENT LLC 360 MADISON AVENUE NEW YORK, NY10017 X Signatures /s/ Stephen C. Smith - for Seaport Global Asset Management LLC, By: Stephen C. Smith, Authorized Signatory 05/08/2025 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Shares held directly by Seaport Group SIBS LLC ("SIBS"). SIBS is managed by Seaport Global Asset Management LLC ("SGAM"). ( 2 )Represents shares of Common Stock of ScanTech AI Systems Inc. (the "Issuer") received by SIBS in settlement of debts previously contracted. ( 3 )Received in exchange for the forfeit by SIBS of shares of ScanTech Identification Beams Systems, LLC ("ScanTech") held by SIBS in connection with ScanTech's business combination.

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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