Andrew R. Neill - 10 Jan 2026 Form 4 Insider Report for Shattuck Labs, Inc. (STTK)

Reporting relationship: Chief Financial Officer
Issuer ticker: STTK
Reported as of: 10 Jan 2026
Net transaction value: -$31,635
SEC form: 4
Accepted by SEC: 13 Jan 2026, 16:42:08 UTC
Prior SEC filing: 27 Aug 2025
Next SEC filing: 27 Jan 2026
Source filing: View source filing
Reporting owner signature: /s/ Andrew R. Neill

Key filing fact

Andrew R. Neill filed Form 4 for Shattuck Labs, Inc. (STTK) on 13 Jan 2026.

Key facts

This page summarizes Andrew R. Neill's Form 4 filing for Shattuck Labs, Inc. (STTK).
2 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 13 Jan 2026, 16:42.

Change

Previous filing in this sequence was filed on 27 Aug 2025.
Current net transaction value: -$31,635.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001827204 Primary reporting owner

Neill Andrew R

Relationship: Chief Financial Officer
Address: C/O SHATTUCK LABS, INC., 500 W. 5TH STREET, SUITE 1200, AUSTIN
Signature: /s/ Andrew R. Neill
Signature date: 13 Jan 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

STTK transaction

Common Stock

Tax liability

Transaction value: $31,635
Shares: -6,660
Change %: -2.8%
Price: $4.75
Shares after: 230,813
Date: 10 Jan 2026
Ownership: Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

STTK transaction Derivative

Stock Option (Right to Buy)

Award

Transaction value: $0
Shares: +549,800
Change %
Price: $0.000000
Shares after: 549,800
Date: 10 Jan 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 549,800
Exercise price: $4.75
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

This option represents a right to purchase a total of 549,800 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.