Redmile Group, LLC - 25 Aug 2025 Form 4 Insider Report for Shattuck Labs, Inc. (STTK)

Reporting relationship: Director, 10%+ Owner
Issuer ticker: STTK
Reported as of: 25 Aug 2025
Net transaction value: $0
SEC form: 4
Accepted by SEC: 26 Aug 2025, 17:00:29 UTC
Prior SEC filing: 15 Aug 2025
Next SEC filing: 28 Oct 2025
Source filing: View source filing
Reporting owner signature: By: /s/ Jeremy Green, Managing Member of Redmile Group, LLC

Key filing fact

Redmile Group, LLC filed Form 4 for Shattuck Labs, Inc. (STTK) on 26 Aug 2025.

Key facts

This page summarizes Redmile Group, LLC's Form 4 filing for Shattuck Labs, Inc. (STTK).
2 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 26 Aug 2025, 17:00.

Change

Previous filing in this sequence was filed on 15 Aug 2025.
Current net transaction value: $0.

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 (2)

CIK 0001425738 Primary reporting owner

Redmile Group, LLC

Relationship: Director, 10%+ Owner
Address: ONE LETTERMAN DRIVE, BUILDING D, SUITE D3-300, SAN FRANCISCO
Signature: By: /s/ Jeremy Green, Managing Member of Redmile Group, LLC
Signature date: 26 Aug 2025

CIK 0001650527

Green Jeremy

Relationship: Director, 10%+ Owner
Address: C/O REDMILE GROUP, LLC (NY OFFICE), 45 W. 27TH STREET, FLOOR 11, NEW YORK
Signature: /s/ Jeremy Green
Signature date: 26 Aug 2025

Reported derivative securities

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

STTK transaction Derivative

Pre-Funded Warrants to Purchase Common Stock

Award

Transaction value
Shares: +4,097,730
Change %: +132%
Price
Shares after: 7,198,553
Date: 25 Aug 2025
Ownership: See Footnotes
Underlying class: Common Stock
Underlying amount: 4,097,730
Exercise price: $0.000100
Footnotes: F1, F2, F3, F4

STTK transaction Derivative

Common Warrants to Purchase Common Stock

Award

Transaction value
Shares: +4,097,730
Change %
Price
Shares after: 4,097,730
Date: 25 Aug 2025
Ownership: See Footnotes
Underlying class: Common Stock
Underlying amount: 4,097,730
Exercise price: $1.08
Footnotes: F1, F2, F3, F4

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

Additional SEC filing notes

Filing notes and footnotes

Section 16 status

Redmile Group, LLC is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may still apply in specific circumstances.

Explanation of responses 4 footnotes

Footnote F1

On August 25, 2025 (the "Closing Date"), pursuant to the terms of that certain securities purchase agreement, dated as of August 4, 2025 (the "Purchase Agreement") and following the satisfaction of certain material conditions set forth therein, the Issuer issued and sold to certain institutional investors in a private placement, including certain private investment vehicles managed by Redmile Group, LLC (the "Redmile Clients"), pre-funded warrants (the "Pre-Funded Warrants") to purchase shares of the Issuer's common stock, par value $0.0001 per share (the "Common Stock"), accompanied by warrants (the "Common Warrants") to purchase an equal number of shares of Common Stock (or, in lieu thereof, Pre-Funded Warrants to purchase up to the same number of shares), at a combined purchase price for both securities of $0.8676.

Footnote F2

The Pre-Funded Warrants and Common Warrants are exercisable by the holder at any time on or after the Closing Date, subject to a 9.99% beneficial ownership blocker. The Pre-Funded Warrants do not have an expiration date. The Common Warrants will expire 30 days after a public announcement of the data from the Issuer's Phase 1 clinical trial for SL-325 in healthy volunteers and the design of its Phase 2 clinical trial.

Footnote F3

The reported securities are directly owned by the Redmile Clients, and may be deemed beneficially owned by Redmile Group, LLC ("Redmile") as the investment manager of the Redmile Clients.

Footnote F4

The reported securities may also be deemed beneficially owned by Jeremy Green as the principal of Redmile. Redmile and Mr. Green disclaim beneficial ownership of the reported securities except to the extent of its or his pecuniary interest therein, if any, and this Form 4 shall not be deemed an admission that Redmile or Mr. Green is the beneficial owner of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

SEC remarks

Mr. Michael Lee, a managing director of Redmile, resigned as a member of the board of directors of the Issuer effective as of the Closing Date.