Actinium PharmaceuticalsATNM
13F holders, Q4 2025 (December 31)At the end of Q4 2025, 60 institutions reported holding Actinium Pharmaceuticals Inc. (ATNM) in their 13F filings, down 1 from Q3 2025. 9 opened new positions and 8 sold out. The largest holders were Vanguard Group Inc. ($1.9M), Acadian Asset Management LLC ($823K) and Millennium Management ($818K). 3 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Steve Cohen (0.0% of Point72 Asset Management's portfolio).
- Company
- Actinium Pharmaceuticals Inc.
- CUSIP
- 00507W206
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 9 | $384K |
| Exits | 8 | $278K |
All 13F filers, Q3 2025 → Q4 2025: 583,760 shares bought and 309,895 shares sold, net +273,865 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 60 holders
| Vanguard Group Inc. | 0.00% | Add +2.6% | 1,421,038 | $1.9M |
| Acadian Asset Management LLC | 0.00% | Add +23.9% | 606,339 | $823K |
| Millennium Management | 0.00% | Reduce -3.7% | 601,600 | $818K |
| Renaissance Technologies | 0.00% | Add +35.4% | 390,784 | $531K |
| BlackRock, Inc. | 0.00% | Add +0.9% | 366,931 | $499K |
| Geode Capital Management, LLC | 0.00% | Add +0.2% | 328,994 | $448K |
| Two Sigma Investments, LP | 0.00% | Reduce -10.5% | 209,692 | $285K |
| Gagnon Securities LLC | 0.06% | Reduce -10.8% | 201,807 | $274K |
| Two Sigma Advisers, LP | 0.00% | Reduce -0.1% | 196,076 | $267K |
| State Street Corp. | 0.00% | No change | 126,215 | $172K |
| Gen-Wealth Partners Inc | 0.05% | Reduce -2.1% | 107,131 | $146K |
| Jane Street Group, LLC | 0.00% | Add +0.2% | 93,192 | $127K |
| Susquehanna International Group, LLP | 0.00% | Reduce -21.8% | 82,474 | $112K |
| Goldman Sachs Group Inc. | 0.00% | New | 70,358 | $96K |
| Squarepoint Ops LLC | 0.00% | New | 65,730 | $89K |
| Bailard, Inc. | 0.00% | New | 57,867 | $79K |
| Northern Trust Corp. | 0.00% | Add +18.7% | 42,610 | $58K |
| Bridgeway Capital Management, LLC | 0.00% | No change | 40,000 | $54K |
| Dimensional Fund Advisors LP | 0.00% | No change | 34,923 | $47K |
| Vontobel Holding Ltd. | 0.00% | No change | 30,000 | $41K |
| Am Investment Strategies LLC | 0.01% | New | 29,356 | $40K |
| XTX Topco Ltd | 0.00% | Add +30.1% | 25,976 | $35K |
| Callan Family Office, LLC | 0.00% | No change | 23,603 | $32K |
| Mayport, LLC | 0.01% | No change | 22,000 | $30K |
| Osaic Holdings, Inc. | 0.00% | Add +183.4% | 20,265 | $28K |
| North Star Asset Management Inc. | 0.00% | No change | 20,000 | $27K |
| Wells Fargo & Company | 0.00% | No change | 19,800 | $27K |
| Morgan Stanley | 0.00% | Add +304.1% | 19,070 | $26K |
| Qube Research & Technologies Ltd | 0.00% | Reduce -26.9% | 18,812 | $26K |
| Cetera Investment Advisers | 0.00% | Add +5.3% | 15,259 | $21K |
| FMR LLC | 0.00% | Reduce -31.9% | 14,373 | $20K |
| Russell Investments Group, Ltd. | 0.00% | No change | 13,340 | $18K |
| Two Sigma Securities, LLC | 0.00% | New | 12,965 | $18K |
| NINE MASTS CAPITAL Ltd | 0.00% | New | 12,940 | $18K |
| HRT Financial LP | 0.00% | New | 13,010 | $17K |
| Intrepid Financial Planning Group LLC | 0.01% | Reduce -16.0% | 10,500 | $14K |
| Point72 Asset Management | 0.00% | New | 10,295 | $14K |
| Level Four Advisory Services, LLC | 0.00% | No change | 10,000 | $14K |
| Savvy Advisors, Inc. | 0.00% | New | 10,000 | $14K |
| Rockefeller Capital Management L.P. | 0.00% | Reduce -11.1% | 4,000 | $5K |
| Steward Partners Investment Advisory, LLC | 0.00% | No change | 2,166 | $3K |
| JPMorgan Chase & Co. | 0.00% | Reduce -4.3% | 1,494 | $2K |
| Federated Hermes, Inc. | 0.00% | Reduce -27.1% | 1,403 | $2K |
| Nisa Investment Advisors, LLC | 0.00% | No change | 958 | $1K |
| National Bank of Canada | 0.00% | No change | 855 | $1K |
| Cwm, LLC | 0.00% | Reduce -55.6% | 620 | $1K |
| Arax Advisory Partners | 0.00% | Add +1979.4% | 707 | $962 |
| Bank of America Corp. | 0.00% | Add +0.1% | 649 | $882 |
| SBI Securities Co., Ltd. | 0.00% | No change | 542 | $737 |
| Citigroup Inc. | 0.00% | Reduce -66.5% | 431 | $586 |
| Jones Financial Companies LLLP | 0.00% | No change | 351 | $477 |
| Pittenger & Anderson Inc. | 0.00% | No change | 341 | $464 |
| Investors Research Corp | 0.00% | No change | 300 | $408 |
| BNP Paribas Financial Markets | 0.00% | No change | 237 | $322 |
| Northwestern Mutual Wealth Management Co. | 0.00% | No change | 107 | $146 |
| UBS Group AG | 0.00% | Reduce -99.3% | 96 | $131 |
| EverSource Wealth Advisors, LLC | 0.00% | Reduce -81.4% | 16 | $22 |
| Essential Partners LLC | 0.00% | Reduce -92.5% | 4 | $5 |
| Barclays PLC | 0.00% | Reduce -75.0% | 1 | $1 |
| Royal Bank of Canada | 0.00% | Reduce -98.6% | 80 | $0 |
"% of holder's portfolio" is ATNM's weight in each manager's 13F, not the share of Actinium Pharmaceuticals Inc. the manager owns.