    <SEC-DOCUMENT>0001829126-25-004416-index.html : 20251223
    <SEC-HEADER>0001829126-25-004416.hdr.sgml : 20251223
    <ACCEPTANCE-DATETIME>20250611173819
    <PRIVATE-TO-PUBLIC>
    ACCESSION NUMBER:		0001829126-25-004416
    CONFORMED SUBMISSION TYPE:	DRS
    PUBLIC DOCUMENT COUNT:		7
    FILED AS OF DATE:		20250612
    <PUBLIC-REL-DATE>20251223
    DATE AS OF CHANGE:		20250611

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			Black Hawk Acquisition Corp
    		CENTRAL INDEX KEY:			0002000775
    		STANDARD INDUSTRIAL CLASSIFICATION:	BLANK CHECKS [6770]
    		ORGANIZATION NAME:           	03 Life Sciences
    		EIN:				000000000
    		FISCAL YEAR END:			1130

    	FILING VALUES:
    		FORM TYPE:		DRS
    		SEC ACT:		1933 Act
    		SEC FILE NUMBER:	377-08098
    		FILM NUMBER:		251041042

    	BUSINESS ADDRESS:
    		STREET 1:		4125 BLACKHAWK PLAZA CIRCLE
    		STREET 2:		SUITE 166
    		CITY:			DANVILLE
    		STATE:			CA
    		ZIP:			94506
    		BUSINESS PHONE:		203-520-7122

    	MAIL ADDRESS:
    		STREET 1:		4125 BLACKHAWK PLAZA CIRCLE
    		STREET 2:		SUITE 166
    		CITY:			DANVILLE
    		STATE:			CA
    		ZIP:			94506
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DRS
    <SEQUENCE>1
    <FILENAME>filename1.htm
    <TEXT>
    Document 1 - file: filename1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>img_001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: img_001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>img_002.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: img_002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>img_003.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: img_003.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>img_004.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: img_004.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>img_005.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: img_005.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>img_006.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: img_006.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>