Shattuck Labs, Inc.
STTK- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001680367
In the last 90 days, Shattuck Labs, Inc. insiders filed 0 open-market purchases and 3 sales; 100 institutions reported holding it in 13F filings for Q2 2026, worth $581.3M in total; no superinvestor holds it.
Holders of 5% or more of STTK
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Shattuck Labs, Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| OrbiMed Advisors LLC | 13D | 9.99%6.31M shares | New | Sep 2, 20251 filing | Sep 2, 2025 | SEC |
| Prosight Management, LP | 13G/A | 9.90%6.54M shares | – | Nov 13, 20251 filing | Nov 13, 2025 | SEC |
| Redmile Group, LLC | 13D/A | 9.90%6.38M shares | −1.90 ppfrom 11.80% | Aug 6, 20252 filings | Aug 26, 2025 | SEC |
| Adage Capital Partners GP, L.L.C. | 13G/A | 9.79%4.67M shares | – | Feb 12, 20251 filing | Feb 12, 2025 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
7 Schedule 13D and 13G filings on Shattuck Labs, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Nov 13, 20257:38 PM ET | Prosight Management, LPand 4 others | 13G/A | 9.90%6.54M shares | – | Sep 30, 2025 | SEC |
| Sep 2, 20259:53 PM ET | OrbiMed Advisors LLCand 2 others | 13D | 9.99%6.31M shares | New | Aug 25, 2025 | SEC |
| Aug 26, 20255:01 PM ET | Redmile Group, LLCand 2 others | 13D/A | 9.90%6.38M shares | −1.90 ppfrom 11.80% | Aug 25, 2025 | SEC |
| Aug 6, 20259:00 PM ET | Redmile Group, LLCand 2 others | 13D/A | 11.80%5.65M shares | – | Aug 4, 2025 | SEC |
| Jul 29, 20252:32 PM ET | Vanguard Group Inc | 13G/A | 4.48%2.15M shares | –Below 5% | Jun 30, 2025 | SEC |
| Jul 16, 20257:02 PM ET | BlackRock, Inc. | 13G/A | 1.80%878.8K shares | –Below 5% | Jun 30, 2025 | SEC |
| Feb 12, 20259:33 AM ET | Adage Capital Partners GP, L.L.C.and 3 others | 13G/A | 9.79%4.67M shares | – | Dec 31, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Shattuck Labs, Inc. shares.
No Form 144 notices for Shattuck Labs, Inc. are on file.