Sec Form 4 Filing - King Michael @ SAB Biotherapeutics, Inc. - 2023-10-30

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL OMB Number: 3235-0287 Expires: November 30, 2011 Estimated average burden hours per response... 0.5

1. Name and Address of Reporting Person King Michael 2. Issuer Name and Ticker or Trading Symbol SAB Biotherapeutics, Inc. [ SABS] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) CHIEF FINANCIAL OFFICER (Last) (First) (Middle) 2100 E 54TH STREET NORTH 3. Date of Earliest Transaction (MM/DD/YY) 10/30/2023 (Street) SIOUX FALLS, SD57104 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Employee Stock Option (right to buy) $ 0.798 ( 1 ) 10/30/2023 A 850,000 ( 1 ) ( 2 ) 10/30/2033 Common Stock 850,000 $ 0 850,000 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other King Michael 2100 E 54TH STREET NORTH SIOUX FALLS, SD57104 CHIEF FINANCIAL OFFICER Signatures /s/ Michael G. King, Jr. 11/03/2023 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents options to purchase shares of common stock of the Registrant pursuant to the Registrant's 2021 Omnibus Equity Incentive Plan. The exercise price of the options was determined as of the date that the compensation committee of the board of directors of the Registrant approved the award, October 19, 2023. The award was contingent upon the Reporting Person's commencement of service as Chief Financial Officer of the Registrant, which occurred on October 30, 2023. ( 2 )The shares underlying the option vest over a four-year period, with 1/4 vesting on the one-year anniversary date from the Reporting Person's commencement of service as Chief Financial Officer (October 30, 2024), and the remainder vesting thereafter in equal monthly installments over a three year period.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.