[Form 4] ScanTech AI Systems Inc. Insider Trading Activity

Rhea-AI Filing Summary

Seaport Global Asset Management LLC reported a sale of 115,000 shares of ScanTech AI Systems Inc. (STAI) common stock. The shares were disposed at a price of $0.5076 per share. After the reported transaction, the reporting person beneficially owns 16,427,973 shares indirectly through an affiliated entity; those shares are managed by Seaport Global Asset Management LLC with an additional ownership link to an identified manager. The filing identifies the transaction as a direct sale by the reporting entity and provides an explanation of indirect ownership but contains no other financial metrics or forward-looking commentary.

Positive

• Full disclosure of transaction details including number of shares sold and sale price
• Substantial indirect ownership remains: 16,427,973 shares held through affiliated entity
• Clear description of ownership chain explaining management and indirect holding structure

Negative

• Insider sale of 115,000 shares which may be viewed negatively by some investors
• No explanation provided in the filing for the reason behind the disposition

Insights

Securities Analyst

TL;DR: A disclosed insider sale of 115,000 STAI shares occurred at $0.5076, while substantial indirect ownership remains.

The sale appears properly reported and provides transparent disclosure of both the transaction price and the remaining indirect stake of 16,427,973 shares. From a trading-impact perspective, the disclosed volume is precise but its materiality is unclear without context on total outstanding shares or recent trading volume. The clear chain of indirect ownership adds governance transparency, showing the manager relationship between the reporting entities.

Corporate Governance Expert

TL;DR: Reporting shows compliant disclosure and explains indirect ownership structure; a sale was conducted by the reporting entity.

The form correctly discloses the nature of indirect beneficial ownership and identifies the manager responsible for the affiliated entity holding shares. This level of detail aids investors assessing insider alignment. The single reported sale does not include explanations for the disposition, so governance implications are limited to the factual disclosure provided.

SEC Form 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

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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^*

SEAPORT GLOBAL ASSET MANAGEMENT LLC

(Last) (First) (Middle)

360 MADISON AVENUE

(Street)

NEW YORK NY 10017

(City) (State) (Zip)

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)

3. Date of Earliest Transaction (Month/Day/Year)
09/19/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock, par value $0.0001 per share	09/19/2025		S		115,000	D	$0.5076	16,427,973	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 (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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Shares held directly by Seaport Group SIBS LLC ("SIBS"). SIBS is managed by Seaport Global Asset Management LLC ("SGAM"). Stephen C. Smith is the manager of SGAM.

	/s/ Stephen C. Smith - for Seaport Global Asset Management LLC, By: Stephen C. Smith, Authorized Signatory	09/23/2025
	** Signature of Reporting Person	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).
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.

FAQ

What transaction was reported on the Form 4 for STAI?

The Form 4 reports a sale of 115,000 shares of ScanTech AI Systems Inc. common stock (STAI) at $0.5076 per share.

How many STAI shares does the reporting person beneficially own after the transaction?

The reporting person beneficially owns 16,427,973 shares indirectly following the reported transaction.

Who is the reporting person on this Form 4 for STAI?

The reporting person is Seaport Global Asset Management LLC, with shares held directly by an affiliated entity managed by Seaport.

Does the Form 4 explain the nature of the indirect ownership?

Yes. The filing explains shares are held directly by Seaport Group SIBS LLC (SIBS), which is managed by Seaport Global Asset Management LLC, and identifies the manager of SGAM.

Is there any derivative or option activity reported?

No derivative securities, options, or other derivative transactions are reported in Table II of the Form 4.