CLRB: Cellectar Biosciences, Inc. insider trading, 5% holders and institutional ownership
From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.
Insider trading
0 open-market buys totaling - and 0 sales totaling - in the last 180 days.
Activist and 5% holders
| Filed | What | Holder | Stake | Change | Filing |
|---|---|---|---|---|---|
| 2026-08-14 | New 13G stake | Caligan Partners LP | 5.90% | SEC | |
| 2026-08-14 | New 13G stake | SilverArc Capital Management, LLC | 9.99% | SEC | |
| 2026-08-14 | New 13G stake | StemPoint Capital LP | 9.90% | SEC | |
| 2026-08-14 | New 13G stake | BALYASNY ASSET MANAGEMENT L.P. | 9.99% | SEC | |
| 2026-08-13 | New 13G stake | Bleichroeder LP | 9.99% | SEC | |
| 2026-08-04 | New 13G stake | Empery Asset Management, LP | 9.99% | SEC |
Institutional ownership (Q2 2026)
29 institutions reported holding $9.65M of Cellectar Biosciences, Inc. on Form 13F (19 the quarter before). 13 opened a new position and 4 sold out. Shares held by institutions: +1020%.
| Largest holders | Shares | Value |
|---|---|---|
| Caligan Partners LP | 469,998 | $1.31M |
| Nantahala Capital Management, LLC | 439,996 | $1.22M |
| STEMPOINT CAPITAL LP | 354,938 | $987K |
| VANGUARD CAPITAL MANAGEMENT LLC | 327,367 | $910K |
| SILVERARC CAPITAL MANAGEMENT, LLC | 321,728 | $894K |
| Bleichroeder LP | 288,679 | $803K |
| Jupiter Topco LLC | 274,156 | $759K |
| Balyasny Asset Management L.P. | 220,000 | $612K |
| Empery Asset Management, LP | 189,605 | $527K |
| DIADEMA PARTNERS LP | 138,341 | $385K |
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