Shattuck Labs (STTK) CTO receives 315,500 options at $4.75 vesting to 2030

Rhea-AI Filing Summary

Shattuck Labs, Inc. reported an equity award to its Chief Technical Officer, Abhinav A. Shukla. On January 10, 2026, he received a stock option covering 315,500 shares of Shattuck Labs common stock at an exercise price of $4.75 per share, reported as a derivative security held directly.

The option has a long-term vesting schedule: one quarter of the shares will vest on January 10, 2027, with the remaining three quarters vesting in equal monthly installments through January 10, 2030, conditioned on his continued service with the company. The option expires on January 10, 2036, giving him a multi-year window to exercise once vested.

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
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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^*

Shukla Abhinav A.

(Last) (First) (Middle)

C/O SHATTUCK LABS, INC.

500 W. 5TH STREET, SUITE 1200

(Street)

AUSTIN TX 78701

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Shattuck Labs, Inc. [ STTK ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
01/10/2026

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
Common Stock	$4.75	01/10/2026		A		315,500		(1)	01/10/2036	Common Stock	315,500	$0	315,500	D

Explanation of Responses:

1. This option represents a right to purchase a total of 315,500 shares of the Issuer's common stock, one quarter of which will vest on January 10, 2027, with the remaining three quarters vesting in equal monthly installments through January 10, 2030, subject to the Reporting Person's continued service to the Issuer.

	/s/ Andrew R. Neill, Attorney-in-fact for Abhinav A. Shukla	01/13/2026
	** 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.

FAQ

What insider transaction did Shattuck Labs (STTK) disclose in this Form 4?

Shattuck Labs disclosed a stock option grant to its Chief Technical Officer, Abhinav A. Shukla, for 315,500 shares of common stock at an exercise price of $4.75 per share.

Who received the stock options reported by Shattuck Labs (STTK)?

The options were granted to Abhinav A. Shukla, who serves as the company’s Chief Technical Officer.

What is the vesting schedule for the 315,500 Shattuck Labs stock options?

One quarter of the option, covering 315,500 shares in total, will vest on January 10, 2027. The remaining three quarters will vest in equal monthly installments through January 10, 2030, subject to the executive’s continued service.

When do the Shattuck Labs (STTK) CTO’s stock options expire?

The reported stock options expire on January 10, 2036, providing a long exercise period after vesting.

How many derivative securities does the Shattuck Labs CTO hold after this transaction?

Following this grant, the Chief Technical Officer beneficially owns 315,500 derivative securities in the form of stock options, held directly, as reported.

What was the reported price for the Shattuck Labs CTO’s option grant?

The Form 4 shows an exercise price of $4.75 per share for the option, with the option itself reported at $0 per derivative security on the grant date, reflecting a typical compensatory option award.