SAB Biotherapeutics director receives 150,000 stock options grant

SAB Biotherapeutics director reports new stock option grant.

Rhea-AI Filing Summary

SAB Biotherapeutics director reports new stock option grant. A member of the Board of Directors received a stock option covering 150,000 shares of SAB Biotherapeutics, Inc. common stock on 12/16/2025 at an exercise price of $3.99 per share. The option expires on 12/16/2035 and represents the director’s 2025 annual equity grant. The underlying shares vest in two equal annual installments on December 16, 2026 and December 16, 2027. The award was granted under the company’s 2021 Omnibus Equity Incentive Plan, as amended, and is held directly by the reporting person.

Insider Trade Summary

Grant/Award: 150,000 shares

Grant/Award 1 txn

Insider Link David

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Stock Option (right to buy)	150,000	$0.00	$0.00

Holdings After Transaction: Stock Option (right to buy) — 150,000 contracts (Direct)

Footnotes (2)

1. F1. Represents the 2025 annual grant to the Reporting Person as a member of the Board of Directors of the Issuer. Shares underlying the option vest in two equal annual installments on December 16, 2026 and December 16, 2027.
2. F2. This award was made pursuant to the Issuer's 2021 Omnibus Equity Incentive Plan, as amended.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did SAB Biotherapeutics (SABS) report?

A director of SAB Biotherapeutics, Inc. reported receiving a stock option for 150,000 shares of common stock as a 2025 annual board grant.

What is the exercise price and term of the new SAB Biotherapeutics stock options?

The director’s stock option has an exercise price of $3.99 per share and an expiration date of 12/16/2035.

When do the SAB Biotherapeutics director stock options vest?

The shares underlying the option vest in two equal annual installments on December 16, 2026 and December 16, 2027.

How many SAB Biotherapeutics shares are covered by the director’s option grant?

The reported award is a stock option covering 150,000 shares of SAB Biotherapeutics, Inc. common stock.

Under which equity plan was the SAB Biotherapeutics director option granted?

The award was made under SAB Biotherapeutics’ 2021 Omnibus Equity Incentive Plan, as amended.

Is the SAB Biotherapeutics director’s option held directly or indirectly?

The Form 4 indicates the 150,000 stock options are held in direct ownership by the reporting person.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 12/18/2025 - 04:40 PM Learn about SEC filing dates

SEC Form 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Link David

(Last) (First) (Middle)

777 W 41ST STREET, SUITE 401

(Street)

MIAMI BEACH FL 33140

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
SAB Biotherapeutics, Inc. [ SABS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
12/16/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	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 (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	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 (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (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: 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
Stock Option (right to buy)(1)(2)	$3.99	12/16/2025		A		150,000		(1)	12/16/2035	Common Stock	150,000	$0	150,000	D

Explanation of Responses:

1. Represents the 2025 annual grant to the Reporting Person as a member of the Board of Directors of the Issuer. Shares underlying the option vest in two equal annual installments on December 16, 2026 and December 16, 2027.

2. This award was made pursuant to the Issuer's 2021 Omnibus Equity Incentive Plan, as amended.

	/s/ David Charles Link	12/18/2025
	** Signature of Reporting Person	Date
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.