Abhinav A. Shukla - 10 Jan 2026 Form 4 Insider Report for Shattuck Labs, Inc. (STTK)

Role: Chief Technical Officer
Signature: /s/ Andrew R. Neill, Attorney-in-fact for Abhinav A. Shukla
Issuer symbol: STTK
Transactions as of: 10 Jan 2026
Net transactions value: $0
Form type: 4
Filing time: 13 Jan 2026, 16:48:00 UTC
Previous filing: 27 Aug 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Shukla Abhinav A.	Chief Technical Officer	C/O SHATTUCK LABS, INC., 500 W. 5TH STREET, SUITE 1200, AUSTIN	/s/ Andrew R. Neill, Attorney-in-fact for Abhinav A. Shukla	13 Jan 2026	0001923377

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	STTK	Common Stock	Award	$0	+315,500		$0.000000	315,500	10 Jan 2026	Common Stock	315,500	$4.75	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	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.