<SEC-DOCUMENT>0001346824-25-000015-index.html : 20251003
<SEC-HEADER>0001346824-25-000015.hdr.sgml : 20251003
<ACCEPTANCE-DATETIME>20251003162617
ACCESSION NUMBER:		0001346824-25-000015
CONFORMED SUBMISSION TYPE:	SCHEDULE 13D
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20251003
DATE AS OF CHANGE:		20251003

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SAB Biotherapeutics, Inc.
		CENTRAL INDEX KEY:			0001833214
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		ORGANIZATION NAME:           	03 Life Sciences
		EIN:				853899721
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13D
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-92283
		FILM NUMBER:		251374277

	BUSINESS ADDRESS:	
		STREET 1:		777 W 41ST ST
		STREET 2:		SUITE 401
		CITY:			MIAMI BEACH
		STATE:			FL
		ZIP:			33140
		BUSINESS PHONE:		305-845-2813

	MAIL ADDRESS:	
		STREET 1:		777 W 41ST ST
		STREET 2:		SUITE 401
		CITY:			MIAMI BEACH
		STATE:			FL
		ZIP:			33140

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Big Cypress Acquisition Corp.
		DATE OF NAME CHANGE:	20201120

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			RA CAPITAL MANAGEMENT, L.P.
		CENTRAL INDEX KEY:			0001346824
		ORGANIZATION NAME:           	
		EIN:				830406777
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13D

	BUSINESS ADDRESS:	
		STREET 1:		200 BERKELEY STREET, 18TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
		BUSINESS PHONE:		617-778-2500

	MAIL ADDRESS:	
		STREET 1:		200 BERKELEY STREET, 18TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	RA CAPITAL MANAGEMENT, LLC
		DATE OF NAME CHANGE:	20051213
</SEC-HEADER>
<DOCUMENT>
<TYPE>SCHEDULE 13D
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
Document 1 - file: primary_doc.html

Document 1 - RAW XML: primary_doc.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>ex-99-10032025_081016.htm
<DESCRIPTION>JOINT FILING AGREEMENT
<TEXT>
Document 2 - file: ex-99-10032025_081016.htm

</DOCUMENT>
</SEC-DOCUMENT>