Shattuck Labs director granted 81,000 stock options

Shattuck Labs, Inc. director George Golumbeski received a compensation-related grant of stock options covering 81,000 shares of common stock.

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Form Type

Rhea-AI Filing Summary

Shattuck Labs, Inc. director George Golumbeski received a compensation-related grant of stock options covering 81,000 shares of common stock. The options have an exercise price of $5.95 per share and expire on May 29, 2036. They vest in full on the earlier of the one-year anniversary of the May 29, 2026 grant date or immediately before the company’s next annual meeting of stockholders, subject to his continued service. Following this grant, he holds 81,000 stock options directly.

Insider Trade Summary

Grant/Award: 81,000 shares

Grant/Award 1 txn

Insider Golumbeski George

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Stock Option (Right to Buy)	81,000	$0.00	$0.00

Holdings After Transaction: Stock Option (Right to Buy) — 81,000 contracts (Direct)

Footnotes (1)

F1. This option represents the right to purchase a total of 81,000 shares of the Issuer's common stock, which will vest in full on the earlier of the one-year anniversary of the grant date or immediately prior to the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continued service to the Issuer.

Key Figures

Options granted: 81,000 options Exercise price: $5.95 per share Expiration date: May 29, 2036 +2 more

5 metrics

Options granted 81,000 options Stock Option (Right to Buy) grant on May 29, 2026

Exercise price $5.95 per share Conversion or exercise price for granted options

Expiration date May 29, 2036 Option term end for granted stock options

Underlying shares 81,000 shares Common stock underlying the stock options

Post‑grant option holdings 81,000 options Total derivative securities owned after transaction

Key Terms

Stock Option (Right to Buy), Grant, award, or other acquisition, exercise price, annual meeting of stockholders

4 terms

Stock Option (Right to Buy) financial

"security_title: "Stock Option (Right to Buy)""

Grant, award, or other acquisition financial

"transaction_code_description: "Grant, award, or other acquisition""

exercise price financial

"conversion_or_exercise_price: "5.9500""

The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.

annual meeting of stockholders financial

"vest in full on the earlier of the one-year anniversary ... or immediately prior to the Issuer's next annual meeting of stockholders"

FAQ

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

What did Shattuck Labs (STTK) director George Golumbeski report in this Form 4?

George Golumbeski reported receiving a grant of stock options for 81,000 shares of Shattuck Labs common stock. These options are a compensation-related award, not an open-market purchase or sale, and are exercisable at a fixed price set in the grant.

How many Shattuck Labs (STTK) shares are covered by the new stock options?

The grant covers stock options on 81,000 shares of Shattuck Labs common stock. This entire amount represents newly awarded options, and after the transaction Golumbeski directly holds options for 81,000 underlying shares according to the Form 4 disclosure.

What is the exercise price and expiration date of George Golumbski’s STTK stock options?

The stock options have an exercise price of $5.95 per share and expire on May 29, 2036. This means he can choose to buy shares at $5.95 any time before the expiration date, once the options are fully vested.

When do George Golumbeski’s Shattuck Labs (STTK) stock options vest?

The 81,000 stock options vest in full on the earlier of the one-year anniversary of the May 29, 2026 grant date or immediately prior to Shattuck Labs’ next annual stockholder meeting, assuming Golumbeski continues serving the company until that vesting event.

Is this STTK Form 4 an open-market trade or a compensation award?

This Form 4 reflects a compensation award, not an open-market trade. The transaction code is “A” for a grant, and the options were granted at no purchase cost as a right to buy shares later at the fixed exercise price.

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

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Accepted by SEC EDGAR 06/02/2026 - 08:00 PM

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^*

Golumbeski George

(Last)

(First)

(Middle)

C/O SHATTUCK LABS, INC.

500 W. 5TH STREET, SUITE 1200

(Street)

AUSTIN

TEXAS

78701

(City)

(State)

(Zip)

UNITED STATES

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/29/2026

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

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

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

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Stock Option (Right to Buy)	$5.95	05/29/2026		A		81,000		⁽¹⁾	05/29/2036	Common Stock	81,000	$0	81,000	D

Explanation of Responses:

1. This option represents the right to purchase a total of 81,000 shares of the Issuer's common stock, which will vest in full on the earlier of the one-year anniversary of the grant date or immediately prior to the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continued service to the Issuer.

	/s/ Andrew R. Neill, Attorney-in-Fact for George Golumbeski	06/02/2026
	** 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.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR