<SEC-DOCUMENT>0001193125-26-155140.txt : 20260414
<SEC-HEADER>0001193125-26-155140.hdr.sgml : 20260414
<ACCEPTANCE-DATETIME>20260414172935
ACCESSION NUMBER:		0001193125-26-155140
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20260410
FILED AS OF DATE:		20260414
DATE AS OF CHANGE:		20260414

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Davidson Janine
		CENTRAL INDEX KEY:			0001810963
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-43088
		FILM NUMBER:		26861822

	MAIL ADDRESS:	
		STREET 1:		1010 GRAND BLVD
		CITY:			KANSAS CITY
		STATE:			MO
		ZIP:			64106

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>3
<SEQUENCE>1
<FILENAME>ownership.xml
<DESCRIPTION>3
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0607</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2026-04-10</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001810963</rptOwnerCik>
            <rptOwnerName>Davidson Janine</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <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>false</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <remarks>Exhibit 24.1 - Power of Attorney</remarks>

    <ownerSignature>
        <signatureName>/s/ Monica Palko, by Power of Attorney</signatureName>
        <signatureDate>2026-04-14</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24.1
<SEQUENCE>2
<FILENAME>ck0002086587-ex24_1.htm
<DESCRIPTION>EX-24.1
<TEXT>
<!-- DFIN ActiveDisclosure (SM) HTML Document - http://www.dfinsolutions.com/ --><!-- Creation Date :2026-04-14T12:27:56.5091+00:00 --><!-- Copyright (c) 2026 Donnelley Financial Solutions, Inc. All Rights Reserved. -->
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  <title>EX-24.1</title>
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  <div style="padding-top:0.5in;z-index:2;min-height:1in;position:relative;box-sizing:border-box;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;margin-left:0;margin-right:0;"><font style="white-space:pre-wrap;font-size:12pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">&#160;</font></p></div>
  <div class="main-content-container" style="z-index:5;position:relative;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:12pt;text-align:center;"><font style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">POWER OF ATTORNEY<br>FOR SECTION 16 REPORTING OBLIGATIONS</font></p><p style="text-indent:6.667%;font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:12pt;text-align:justify;"><font style="text-transform:uppercase;color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">Know all by these presents</font><font style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">, that the undersigned hereby makes, constitutes and appoints Kevin Messerle and Monica Palko, each signing singly, as the undersigned&#x2019;s true and lawful attorneys-in-fact, with full power and authority as hereinafter described on behalf of and in the name, place and stead of the undersigned to:</font></p><div class="item-list-element-wrapper" style="display:flex;margin-top:0;justify-content:flex-start;align-items:baseline;margin-bottom:12pt;min-width:6.667%;text-align:justify;"><font style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;font-kerning:none;min-width:6.667%;word-break:keep-all;display:inline-flex;justify-content:flex-start;">(1)</font><div style="display:inline;"><font style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">prepare, execute, acknowledge, deliver and file Forms 3, 4 and 5 (including any amendments thereto) with respect to the securities of York Space Systems Inc., a company incorporated under the laws of the State of Delaware, or any successor thereto (the &#x201c;</font><font style="color:#000000;white-space:pre-wrap;text-decoration:underline solid;font-size:10pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">Company</font><font style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">&#x201d;), with the U.S. Securities and Exchange Commission, any national securities exchanges and the Company, as considered necessary or advisable under Section 16(a) of the Securities Exchange Act of 1934 and the rules and regulations promulgated thereunder, as amended from time to time (the &#x201c;</font><font style="color:#000000;white-space:pre-wrap;text-decoration:underline solid;font-size:10pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">Exchange Act</font><font style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">&#x201d;); </font></div></div><div class="item-list-element-wrapper" style="display:flex;margin-top:0;justify-content:flex-start;align-items:baseline;margin-bottom:12pt;min-width:6.667%;text-align:justify;"><font style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;font-kerning:none;min-width:6.667%;word-break:keep-all;display:inline-flex;justify-content:flex-start;">(2)</font><div style="display:inline;"><font style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">seek or obtain, as the undersigned&#x2019;s representative and on the undersigned&#x2019;s behalf, information of transactions in the Company&#x2019;s securities from any third-party, including brokers, employee benefit plan administrators and trustees, and the undersigned hereby authorizes any such person to release any such information to the undersigned and approves and ratifies any such release of information; and</font></div></div><div class="item-list-element-wrapper" style="display:flex;margin-top:0;justify-content:flex-start;align-items:baseline;margin-bottom:12pt;min-width:6.667%;text-align:justify;"><font style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;font-kerning:none;min-width:6.667%;word-break:keep-all;display:inline-flex;justify-content:flex-start;">(3)</font><div style="display:inline;"><font style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">perform any and all other acts which in the discretion of such attorneys-in-fact is necessary or desirable for and on behalf of the undersigned in connection with the foregoing.</font></div></div><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:12pt;text-align:justify;"><font style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">The undersigned acknowledges that:</font></p><div class="item-list-element-wrapper" style="display:flex;margin-top:0;justify-content:flex-start;align-items:baseline;margin-bottom:12pt;min-width:6.667%;text-align:justify;"><font style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;font-kerning:none;min-width:6.667%;word-break:keep-all;display:inline-flex;justify-content:flex-start;">(1)</font><div style="display:inline;"><font style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">this Power of Attorney authorizes, but does not require, such attorneys-in-fact to act in his or her discretion on information provided to such attorneys-in-fact without independent verification of such information; </font></div></div><div class="item-list-element-wrapper" style="display:flex;margin-top:0;justify-content:flex-start;align-items:baseline;margin-bottom:12pt;min-width:6.667%;text-align:justify;"><font style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;font-kerning:none;min-width:6.667%;word-break:keep-all;display:inline-flex;justify-content:flex-start;">(2)</font><div style="display:inline;"><font style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">any documents prepared, executed, acknowledged and/or delivered by such attorneys-in-fact on behalf of the undersigned pursuant to this Power of Attorney will be in such form and will contain such information and disclosure as such attorneys-in-fact, in his or her discretion, deems necessary or desirable;</font></div></div><div class="item-list-element-wrapper" style="display:flex;margin-top:0;justify-content:flex-start;align-items:baseline;margin-bottom:12pt;min-width:6.667%;text-align:justify;"><font style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;font-kerning:none;min-width:6.667%;word-break:keep-all;display:inline-flex;justify-content:flex-start;">(3)</font><div style="display:inline;"><font style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">neither the Company nor such attorneys-in-fact assumes (i) any liability for the undersigned&#x2019;s responsibility to comply with the requirements of the Exchange Act, (ii) any liability of the undersigned for any failure to comply with such requirements or (iii) any obligation or liability of the undersigned for profit disgorgement under Section 16(b) of the Exchange Act; and </font></div></div><div class="item-list-element-wrapper" style="display:flex;margin-top:0;justify-content:flex-start;align-items:baseline;margin-bottom:12pt;min-width:6.667%;text-align:justify;"><font style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;font-kerning:none;min-width:6.667%;word-break:keep-all;display:inline-flex;justify-content:flex-start;">(4)</font><div style="display:inline;"><font style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">this Power of Attorney does not relieve the undersigned from responsibility for compliance with the undersigned&#x2019;s obligations under the Exchange Act, including without limitation the reporting requirements under Section 16 of the Exchange Act.</font></div></div><p style="text-indent:6.667%;font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:12pt;text-align:justify;"><font style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">The undersigned hereby gives and grants the foregoing attorneys-in-fact full power and authority to do and perform all and every act and thing whatsoever requisite, necessary or appropriate to be done in and about the foregoing matters as fully to all intents and purposes as the undersigned might or could do if present, hereby ratifying all that such attorneys-in-fact of, for and on behalf of the undersigned, shall lawfully do or cause to be done by virtue of this Power of Attorney.</font><font style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;"> </font></p><p style="text-indent:6.667%;font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:12pt;text-align:justify;"><font style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">This Power of Attorney shall remain in full force and effect until revoked by the undersigned in a signed writing delivered to such attorneys-in-fact.</font></p></div>
  <div style="z-index:2;flex-direction:column;display:flex;padding-bottom:0.5in;min-height:1in;justify-content:flex-end;position:relative;box-sizing:border-box;"><p style="font-size:10pt;margin-top:6pt;font-family:Times New Roman;margin-bottom:0;text-align:left;margin-left:0;margin-right:0;"><font style="white-space:pre-wrap;font-size:8pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">&#160;</font></p></div>
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  <div class="main-content-container" style="z-index:5;position:relative;"><p style="text-indent:6.667%;font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:12pt;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 14th day of April 2026.</font></p>
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     <td style="padding-top:0.01in;padding-left:0in;vertical-align:top;padding-bottom:0in;border-bottom:0.5pt solid #ffffff03;padding-right:0.01in;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="white-space:pre-wrap;font-kerning:none;min-width:fit-content;">&#160;</font></p></td>
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     <td style="padding-top:0.01in;padding-left:0in;vertical-align:top;padding-bottom:0in;padding-right:0.01in;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="white-space:pre-wrap;font-kerning:none;min-width:fit-content;">&#160;</font></p></td>
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