    <SEC-DOCUMENT>0001193125-26-030469-index.html : 20260130
    <SEC-HEADER>0001193125-26-030469.hdr.sgml : 20260130
    <ACCEPTANCE-DATETIME>20260130065945
    ACCESSION NUMBER:		0001193125-26-030469
    CONFORMED SUBMISSION TYPE:	424B4
    PUBLIC DOCUMENT COUNT:		15
    FILED AS OF DATE:		20260130
    DATE AS OF CHANGE:		20260130

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			Yellowstone Midco Holdings II, LLC
    		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

    	FILING VALUES:
    		FORM TYPE:		424B4
    		SEC ACT:		1933 Act
    		SEC FILE NUMBER:	333-291581
    		FILM NUMBER:		26580507

    	BUSINESS ADDRESS:
    		STREET 1:		1449 7TH STREET, SUITE 425
    		CITY:			DENVER
    		STATE:			CO
    		ZIP:			80204
    		BUSINESS PHONE:		720-537-2655

    	MAIL ADDRESS:
    		STREET 1:		1449 7TH STREET, SUITE 425
    		CITY:			DENVER
    		STATE:			CO
    		ZIP:			80204
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>424B4
    <SEQUENCE>1
    <FILENAME>d941199d424b4.htm
    <DESCRIPTION>424B4
    <TEXT>
    Document 1 - file: d941199d424b4.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>g941199g01a01.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: g941199g01a01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>g941199g01a68.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: g941199g01a68.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>g941199g02a00.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: g941199g02a00.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>g941199g03a00.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: g941199g03a00.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>g941199g04a00.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: g941199g04a00.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>g941199g06u00.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: g941199g06u00.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>g941199g06u01.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: g941199g06u01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>g941199g40j10.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: g941199g40j10.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>g941199g63u34.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 10 - file: g941199g63u34.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>g941199g72t70.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 11 - file: g941199g72t70.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>g941199g79g89.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 12 - file: g941199g79g89.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>g941199g84b24.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 13 - file: g941199g84b24.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>g941199g88z53.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 14 - file: g941199g88z53.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>g941199g90c76.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 15 - file: g941199g90c76.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>