<SEC-DOCUMENT>0001193125-26-102697.txt : 20260311
<SEC-HEADER>0001193125-26-102697.hdr.sgml : 20260311
<ACCEPTANCE-DATETIME>20260311195633
ACCESSION NUMBER:		0001193125-26-102697
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20260130
FILED AS OF DATE:		20260311
DATE AS OF CHANGE:		20260311

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Wallinger Dirk
		CENTRAL INDEX KEY:			0002100113
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-43088
		FILM NUMBER:		26745143

	MAIL ADDRESS:	
		STREET 1:		6060 S WILLOW DRIVE
		CITY:			GREENWOOD VILLAGE
		STATE:			CO
		ZIP:			80111

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			York Space Systems Inc.
		CENTRAL INDEX KEY:			0002086587
		STANDARD INDUSTRIAL CLASSIFICATION:	GUIDED MISSILES & SPACE VEHICLES & PARTS [3760]
		ORGANIZATION NAME:           	04 Manufacturing
		EIN:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		6060 S WILLOW DR.
		CITY:			GREENWOOD VILLAGE
		STATE:			CO
		ZIP:			80111
		BUSINESS PHONE:		720-537-2655

	MAIL ADDRESS:	
		STREET 1:		6060 S WILLOW DR.
		CITY:			GREENWOOD VILLAGE
		STATE:			CO
		ZIP:			80111

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Yellowstone Midco Holdings II, LLC
		DATE OF NAME CHANGE:	20250917
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>ownership.xml
<DESCRIPTION>4/A
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2026-01-30</periodOfReport>

    <dateOfOriginalSubmission>2026-02-03</dateOfOriginalSubmission>

    <issuer>
        <issuerCik>0002086587</issuerCik>
        <issuerName>York Space Systems Inc.</issuerName>
        <issuerTradingSymbol>YSS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002100113</rptOwnerCik>
            <rptOwnerName>Wallinger Dirk</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O YORK SPACE SYSTEMS INC.</rptOwnerStreet1>
            <rptOwnerStreet2>6060 S WILLOW DRIVE</rptOwnerStreet2>
            <rptOwnerCity>GREENWOOD VILLAGE</rptOwnerCity>
            <rptOwnerState>CO</rptOwnerState>
            <rptOwnerZipCode>80111</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>true</isDirector>
            <isOfficer>true</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle>Chief Executive Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>false</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-01-30</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>211176</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>9783222</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Represents restricted stock units which vest over three years. This amendment corrects the original Form 4, which inadvertently included 358,744 shares of restricted stock, which shares were previously reported by Mr. Wallinger on the Form 3 filed January 29, 2026.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Monica Palko, by Power of Attorney</signatureName>
        <signatureDate>2026-03-11</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
