Shattuck Labs (STTK) CFO Neill reports 2,589-share Form 4 stock disposal

Rhea-AI Filing Summary

Shattuck Labs Chief Financial Officer Andrew R. Neill reported a small change in his holdings of Shattuck Labs, Inc. common stock. On January 25, 2026, he disposed of 2,589 shares of common stock in a transaction reported under SEC transaction code "F" at a reported price of $4.15 per share. Following this transaction, Neill beneficially owns 228,224 shares of Shattuck Labs common stock, held directly.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Neill Andrew R

Role Chief Financial Officer

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	2,589	$4.15	$11K

Holdings After Transaction: Common Stock — 228,224 shares (Direct)

Footnotes (1)

Form 4 Insider Transactions: What Each Field Means →

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^*

Neill Andrew R

(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 Financial Officer

3. Date of Earliest Transaction (Month/Day/Year)
01/25/2026

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
Common Stock	01/25/2026		F		2,589	D	$4.15	228,224	D

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

Explanation of Responses:

	/s/ Andrew R. Neill	01/27/2026
	** 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) report for its CFO?

Shattuck Labs Chief Financial Officer Andrew R. Neill reported a disposition of 2,589 shares of Shattuck Labs common stock on January 25, 2026, shown under SEC transaction code "F" at $4.15 per share.

How many Shattuck Labs (STTK) shares does the CFO own after this Form 4?

After the reported transaction, Chief Financial Officer Andrew R. Neill beneficially owns 228,224 shares of Shattuck Labs common stock, held in direct ownership.

What does transaction code "F" indicate in the Shattuck Labs (STTK) Form 4?

The filing lists the disposition of 2,589 shares of Shattuck Labs common stock under SEC transaction code "F", indicating the specific transaction type as defined in SEC Form 4 reporting rules.

Did the Shattuck Labs (STTK) CFO report any derivative securities in this Form 4?

The Form 4 table for derivative securities shows no derivative transactions reported for Chief Financial Officer Andrew R. Neill in this filing.

Is the Shattuck Labs (STTK) CFO a 10% owner according to this filing?

The Form 4 identifies Andrew R. Neill as an officer of Shattuck Labs, serving as Chief Financial Officer, and does not mark him as a 10% owner.

Is this Shattuck Labs (STTK) Form 4 filed by more than one reporting person?

No. The Form 4 is marked as filed by one reporting person, identifying only Chief Financial Officer Andrew R. Neill as the reporting person.