Abhinav A. Shukla - 02 Jul 2026 Form 4 Insider Report for Shattuck Labs, Inc. (STTK)

Reporting relationship: Chief Technical Officer
Issuer ticker: STTK
Reported as of: 02 Jul 2026
Net transaction value: -$2,874
SEC form: 4
Accepted by SEC: 07 Jul 2026, 19:00:06 UTC
Prior SEC filing: 02 Jul 2026
Source filing: View source filing
Reporting owner signature: /s/ Andrew R. Neill, Attorney-in-fact for Abhinav A. Shukla

Key filing fact

Abhinav A. Shukla filed Form 4 for Shattuck Labs, Inc. (STTK) on 07 Jul 2026.

Key facts

This page summarizes Abhinav A. Shukla's Form 4 filing for Shattuck Labs, Inc. (STTK).
5 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 07 Jul 2026, 19:00.

Change

Previous filing in this sequence was filed on 02 Jul 2026.
Current net transaction value: -$2,874.

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 0001923377 Primary reporting owner

Shukla Abhinav A.

Relationship: Chief Technical Officer
Address: C/O SHATTUCK LABS, INC., 500 W. 5TH STREET, SUITE 1200, AUSTIN
Signature: /s/ Andrew R. Neill, Attorney-in-fact for Abhinav A. Shukla
Signature date: 07 Jul 2026

Reported non-derivative transactions

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

STTK transaction

Common Stock

Options Exercise

Transaction value
Shares: +410
Change %: +0.47%
Price: $3.57^*
Shares after: 86,790
Date: 02 Jul 2026
Ownership: Direct

STTK transaction

Common Stock

Sale

Transaction value: $2,874
Shares: -410
Change %: -0.47%
Price: $7.01
Shares after: 86,380
Date: 02 Jul 2026
Ownership: Direct
Footnotes: F1, F2

STTK transaction

Common Stock

Options Exercise

Transaction value
Shares: +12,153
Change %: +14%
Price: $3.57^*
Shares after: 98,533
Date: 06 Jul 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)

Options Exercise

Transaction value
Shares: -410
Change %: -1.5%
Price: $0.000000^*
Shares after: 26,293
Date: 02 Jul 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 410
Exercise price: $3.57
Footnotes: F3

STTK transaction Derivative

Stock Option (Right to Buy)

Options Exercise

Transaction value
Shares: -12,153
Change %: -46%
Price: $0.000000^*
Shares after: 14,140
Date: 06 Jul 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 12,153
Exercise price: $3.57
Footnotes: F3

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

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 3 footnotes

Footnote F1

Sale of shares effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 2, 2026. The plan is intended to execute sales of shares received upon option exercise only as needed to fund the exercise price and estimated tax withholding associated with option exercises under the plan. Under the procedures of the administering broker, acquired shares are first sold to fund the aggregate exercise price and estimated tax withholding with respect to all possible option exercises in a particular order under the plan and only once fully funded will acquired shares be held by the Reporting Person. This transaction represents the final sale of shares needed to fully fund the exercise price and estimated tax withholding for the option exercises under this order of the plan and the remaining shares acquired upon exercise under this order will be held by the Reporting Person.

Footnote F2

The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $7.000 to $7.030, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

Footnote F3

This option represents a right to purchase a total of 52,200 shares of the Issuer's common stock, one quarter of which will vest on January 25, 2024, with the remaining three quarters vesting in equal monthly installments through January 25, 2027, subject to the Reporting Person's continued service to the Issuer.