Climb Bio, Inc.
CLYM- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001768446
In the last 90 days, Climb Bio, Inc. insiders filed 0 open-market purchases and 1 sale; 108 institutions reported holding it in 13F filings for Q2 2026, worth $734.3M in total; no superinvestor holds it.
Holders of 5% or more of CLYM
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Climb Bio, Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Ra Capital Management, L.P. | 13D/A | 33.00%22.6M shares | 0.00 ppfrom 33.00% | Dec 15, 20252 filings | Apr 29, 2026 | SEC |
| Pontifax Management 4 G.P. (2015) Ltd. | 13G | 7.70%5.21M shares | New | Sep 18, 20251 filing | Sep 18, 2025 | SEC |
| MPM Oncology Impact Management LP | 13G | 5.60%2.67M shares | New | Feb 17, 20261 filing | Feb 17, 2026 | 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 Climb Bio, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Apr 29, 20266:44 PM ET | Ra Capital Management, L.P.and 5 others | 13D/A | 33.00%22.6M shares | 0.00 ppfrom 33.00% | Apr 27, 2026 | SEC |
| Feb 17, 20264:09 PM ET | MPM Oncology Impact Management LP | 13G | 5.60%2.67M shares | New | Dec 31, 2025 | SEC |
| Dec 15, 20257:56 PM ET | Ra Capital Management, L.P.and 5 others | 13D/A | 33.00%18.0M shares | – | Dec 11, 2025 | SEC |
| Oct 16, 20255:48 PM ET | AI Eti LLCand 3 others | 13D/A | 0.00%0 shares | −5.66 ppfrom 5.66%Below 5% | Oct 14, 2025 | SEC |
| Oct 7, 20254:51 PM ET | AI Eti LLCand 3 others | 13D/A | 5.66%3.84M shares | – | Oct 3, 2025 | SEC |
| Sep 18, 20259:26 AM ET | Pontifax Management 4 G.P. (2015) Ltd.and 3 others | 13G | 7.70%5.21M shares | New | Jun 27, 2024 | SEC |
| Feb 13, 20253:56 PM ET | BML Investment Partners, L.P.and 1 other | 13G/A | 0.00%0 shares | –Below 5% | Dec 31, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Climb Bio, Inc. shares.
No Form 144 notices for Climb Bio, Inc. are on file.