Cellectar Biosciences, Inc.
CLRB- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001279704
No open-market purchases or sales by Cellectar Biosciences, Inc. insiders were filed in the last 90 days; 29 institutions reported holding it in 13F filings for Q2 2026, worth $9.08M in total; no superinvestor holds it.
Holders of 5% or more of CLRB
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Cellectar Biosciences, Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Rosalind Advisors, Inc. | 13G/A | 9.90%7.47M shares | – | Feb 3, 20251 filing | Feb 3, 2025 | SEC |
| Bleichroeder LP | 13G | 6.08%200.0K shares | New | Nov 14, 20251 filing | Nov 14, 2025 | SEC |
| Hexstone Capital LLC | 13G | 5.60%150.0K shares | New | Aug 8, 20251 filing | Aug 8, 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
11 Schedule 13D and 13G filings on Cellectar Biosciences, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Nov 14, 202510:46 AM ET | Bleichroeder LPand 2 others | 13G | 6.08%200.0K shares | New | Sep 30, 2025 | SEC |
| Aug 14, 20257:39 PM ET | ADAR1 Capital Management, LLCand 3 others | 13G/A | 0.10%2.96K shares | –Below 5% | Jun 30, 2025 | SEC |
| Aug 14, 20256:12 PM ET | Lytton Laurence W | 13G/A | 1.60%51.4K shares | −7.20 ppfrom 8.80%Below 5% | Jun 30, 2025 | SEC |
| Aug 14, 20254:39 PM ET | Nantahala Capital Management, LLCand 2 others | 13G/A | 0.06%1.11K shares | −5.67 ppfrom 5.73%Below 5% | Jun 30, 2025 | SEC |
| Aug 8, 20254:05 PM ET | Hexstone Capital LLCand 1 other | 13G | 5.60%150.0K shares | New | Jul 2, 2025 | SEC |
| Jul 8, 20255:02 PM ET | Intracoastal Capital, LLCand 2 others | 13G | 4.99%140.1K shares | NewBelow 5% | Jul 1, 2025 | SEC |
| Feb 14, 20254:32 PM ET | Nantahala Capital Management, LLCand 2 others | 13G/A | 5.73%2.51M shares | −4.26 ppfrom 9.99% | Dec 31, 2024 | SEC |
| Feb 13, 20253:49 PM ET | Lytton Laurence W | 13G/A | 8.80%3.96M shares | – | Dec 31, 2024 | SEC |
| Feb 3, 20254:57 PM ET | Rosalind Advisors, Inc.and 4 others | 13G/A | 9.90%7.47M shares | – | Dec 31, 2024 | SEC |
| Jan 27, 202510:07 AM ET | Hirschman Orinand 1 other | 13G/A | 4.90%2.02M shares | –Below 5% | Dec 31, 2024 | SEC |
| Nov 14, 20244:53 PM ET | Nantahala Capital Management, LLCand 2 others | 13G/A | 9.99%3.68M shares | – | Sep 30, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Cellectar Biosciences, Inc. shares.
No Form 144 notices for Cellectar Biosciences, Inc. are on file.