<SEC-DOCUMENT>0001104659-25-007318.txt : 20250129
<SEC-HEADER>0001104659-25-007318.hdr.sgml : 20250129
<ACCEPTANCE-DATETIME>20250129200029
ACCESSION NUMBER:		0001104659-25-007318
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250117
FILED AS OF DATE:		20250129
DATE AS OF CHANGE:		20250129

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			McMillen Charles Thomas
		CENTRAL INDEX KEY:			0001332108
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-42463
		FILM NUMBER:		25570746

	MAIL ADDRESS:	
		STREET 1:		1103 SOUTH CAROLINA AVENUE
		CITY:			WASHINGTON
		STATE:			DC
		ZIP:			20003

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ScanTech AI Systems Inc.
		CENTRAL INDEX KEY:			0001994624
		STANDARD INDUSTRIAL CLASSIFICATION:	INSTRUMENTS FOR MEAS & TESTING OF ELECTRICITY & ELEC SIGNALS [3825]
		ORGANIZATION NAME:           	08 Industrial Applications and Services
		IRS NUMBER:				933502562
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1177 AVENUE OF THE AMERICA, SUITE 5100
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10036
		BUSINESS PHONE:		8886221218

	MAIL ADDRESS:	
		STREET 1:		1177 AVENUE OF THE AMERICA, SUITE 5100
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10036
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>tm254276d7_3seq1.xml
<DESCRIPTION>OWNERSHIP DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2025-01-17</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001994624</issuerCik>
        <issuerName>ScanTech AI Systems Inc.</issuerName>
        <issuerTradingSymbol>STAI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001332108</rptOwnerCik>
            <rptOwnerName>McMillen Charles Thomas</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1735 ENTERPRISE DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>BUFORD</rptOwnerCity>
            <rptOwnerState>GA</rptOwnerState>
            <rptOwnerZipCode>30518</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <ownerSignature>
        <signatureName>/s/ Thomas McMillen</signatureName>
        <signatureDate>2025-01-29</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
