Insider Transactions Reported by 15 Insiders of ScanTech AI Systems Inc.

Symbol: STAI on Nasdaq
Location: New York, NY

Quick Takeaways

STAI - ScanTech AI Systems Inc. has 15 insiders with reported activity on this page.
Net insider value flow over the last year: -$391,946.
Recent transaction rows are available for direct filing-level review.

What Changed

Buy value: ; sell value: $391,946.
Net share flow: <span class="text-red-600">-568,628</span>.

Why This Matters

This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.

Official SEC Source

Filed on Form 4

Issuer insider activity is sourced from SEC Forms 3, 4, and 5.

See Original Filing

Insider trading overview

Last 12 months

Net insider flow leans to selling over the last 12 months. Net value: -$391,946.

Buys

Shares: 0

Insiders: 0

Sells

$391,946

Shares: 568,628

Insiders: 1

Net

-$391,946

Shares: -568,628

Insiders: -1

Window (months)	Sell shares	Buy $	Sell $	Net $
0-3	70,000	$0	$34,118	+$34,118
3-6	268,628	$0	$190,124	+$190,124
6-9	230,000	$0	$167,704	+$167,704
9-12	0	$0	$0	$0

ScanTech AI Systems Inc. executives and other stock owners filed with the SEC include:

Name	Relationship	Holdings Value	Past Year Net Change	Change %	Valuation	Report Date
Karl Brenza	Director	$2,845,144			Mixed	02 May 2025
Marion Starns IV	EVP and COO	$932,309			Mixed	02 May 2025
Alfred Forbes IV	VP and Chief Science Officer	$752,700			Mixed	02 May 2025
Christopher Kareem Green	Vice President and CTO	$727,184			Mixed	02 May 2025
James White Clinton Jr.	Chief Financial Officer	$490,528			Mixed	02 May 2025
Dolan Falconer	Chief Executive Officer, Director	$406,113			Mixed	03 Sep 2025
SEAPORT GLOBAL ASSET MANAGEMENT LLC	10%+ Owner	$356,711	-$391,946	-52%	Filing P/S	10 Feb 2026
Sole Owner DeMeakey Williams	Senior Vice President of Sales, Business Development, and Investor Relations	$176,161			Mixed	01 Jul 2025
Roosevelt Council	Director				Mixed	21 Nov 2025
James M. Jenkins	Director				Mixed	17 Jan 2025
Keisha Bottoms	Director				Mixed	17 Jan 2025
Michael Christopher McGarrity	Director				Mixed	17 Jan 2025
C. Thomas McMillen	Director				Mixed	17 Jan 2025
Bradley Buswell	Director				Mixed	17 Jan 2025
Michael David Palmer Cavanaugh	Director				Mixed	08 Dec 2025

Top shareholders of ScanTech AI Systems Inc. (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
Karl Brenza	3/4/5	Director	2.6%	1,835,577	$2,845,144	—	02 May 2025	3/4/5
York Capital Management Global Advisors, LLC	13D/G	—	6.6%	1,700,000	$2,635,000	$0	19 May 2025	13D/G
Shanchun Huang	13D/G	—	5.5%	2,438,599	$1,999,651	$0	02 Apr 2025	13D/G
SEAPORT GLOBAL ASSET MANAGEMENT LLC	13D/G 3/4/5	10%+ Owner	16%	731,867	$1,939,448	-$193,450	10 Feb 2026	13D/G 3/4/5
Marion Starns IV	3/4/5	EVP and COO	0.77%	545,210	$932,309	—	02 May 2025	3/4/5
Alfred Forbes IV	3/4/5	VP and Chief Science Officer	0.62%	440,176	$752,700	—	02 May 2025	3/4/5
Christopher Kareem Green	3/4/5	Vice President and CTO	0.6%	425,254	$727,184	—	02 May 2025	3/4/5
James White Clinton Jr.	3/4/5	Chief Financial Officer	0.4%	286,859	$490,528	—	02 May 2025	3/4/5
Dolan Falconer	3/4/5	Chief Executive Officer, Director	1.2%	864,072	$406,113	—	03 Sep 2025	3/4/5
Polar Asset Management Partners Inc.	13D/G 13F	Company	0.11%	75,000	$200,002	-$3,800,048	31 Dec 2025	13D/G 13F
Sole Owner DeMeakey Williams	3/4/5	Senior Vice President of Sales, Business Development, and Investor Relations	0.49%	347,870	$176,161	—	01 Jul 2025	3/4/5
VANGUARD GROUP INC	13F	Company	0.47%	21,986	$54,085	—	31 Dec 2025	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.45%	20,970	$51,585	—	31 Dec 2025	13F
UBS Group AG	13F	Company	0.11%	5,119	$12,593	—	31 Dec 2025	13F
Mint Tower Capital Management B.V.	13F	Company	0%	750	$2,000	—	31 Dec 2025	13F
CITIGROUP INC	13F	Company	0%	35	$86	—	31 Dec 2025	13F
BANK OF AMERICA CORP /DE/	13F	Company	0%	23	$56	—	31 Dec 2025	13F
SBI Securities Co., Ltd.	13F	Company	0%	7	$17	—	31 Dec 2025	13F
James M. Jenkins	3/4/5	Director	— class O/S missing	17,250	—	—	17 Jan 2025	3/4/5
Michael Christopher McGarrity	3/4/5	Director	— class O/S missing	5,000	—	—	17 Jan 2025	3/4/5

Recent Insider Transactions by Companies or Individuals for ScanTech AI Systems Inc.

Showing up to 300 most recent insider transactions from the last 12 months.

Insider	Symbol	Class	Transaction	%	Value $	* Price $	Shares	Shares Owned	Date	Ownership
Seaport Global Asset Management Llc	STAI	Common Stock, par value $0.0001 per share	Sale	-8.73%	$34,118	$0.4874	-70,000	731,867	10 Feb 2026	See footnote
Seaport Global Asset Management Llc	STAI	Common Stock, par value $0.0001 per share	Sale	-0.37%			-3,000	801,867	22 Dec 2025	See footnote
Seaport Global Asset Management Llc	STAI	Common Stock, par value $0.0001 per share	Sale	-0.01%			-100	804,867	17 Dec 2025	See footnote
Seaport Global Asset Management Llc	STAI	Common Stock, par value $0.0001 per share	Sale	-0.37%			-3,000	804,967	16 Dec 2025	See footnote
Seaport Global Asset Management Llc	STAI	Common Stock, par value $0.0001 per share	Sale	-0.06%	$6,616	$0.6616	-10,000	16,159,345	28 Oct 2025	See footnote
Seaport Global Asset Management Llc	STAI	Common Stock, par value $0.0001 per share	Sale	-0.82%	$92,858	$0.6949	-133,628	16,169,345	27 Oct 2025	See footnote
Seaport Global Asset Management Llc	STAI	Common Stock, par value $0.0001 per share	Sale	-0.76%	$90,650	$0.7252	-125,000	16,302,973	10 Oct 2025	See footnote
Seaport Global Asset Management Llc	STAI	Common Stock, par value $0.0001 per share	Sale	-0.7%	$58,374	$0.5076	-115,000	16,427,973	19 Sep 2025	See footnote
Dolan Falconer	STAI	Common Stock	Disposed to Issuer	-19.4%			-207,256	864,072	03 Sep 2025	Direct
Seaport Global Asset Management Llc	STAI	Common Stock, par value $0.0001 per share	Sale	-0.66%	$104,280	$0.9480	-110,000	16,542,973	30 Jul 2025	See footnote
Seaport Global Asset Management Llc	STAI	Common Stock, par value $0.0001 per share	Sale	-0.03%	$5,050	$1.01	-5,000	16,652,973	29 Jul 2025	See footnote
Sole Owner DeMeakey Williams	STAI	Common Stock	Award	8050.7%			343,602	347,870	01 Jul 2025	By Crane Consulting Firm, Corp.
Demeakey Voshay Williams Sr.	STAI	Common Stock	Award				4,268	4,268	14 May 2025	Direct
Alfred Forbes IV	STAI	Common Stock	Award	1055.2%			402,073	440,176	02 May 2025	Direct
Marion Starns IV	STAI	Common Stock	Award	1132.5%			500,974	545,210	02 May 2025	Direct
Christopher Kareem Green	STAI	Common Stock	Award	1003.6%			386,720	425,254	02 May 2025	Direct
Dolan Falconer	STAI	Common Stock	Award	285.2%			800,577	1,081,328	02 May 2025	Direct
Karl Brenza	STAI	Common Stock	Award	232%			800,577	1,145,577	02 May 2025	Direct
James White Clinton Jr.	STAI	Common Stock	Award				286,859	286,859	02 May 2025	Direct
Seaport Global Asset Management Llc	STAI	Common Stock, par value $0.0001 per share	Other	47.3%			5,350,000	16,657,973	17 Apr 2025	See footnote

* An asterisk sign (*) next to the price indicates that the price is likely invalid.