Actinium PharmaceuticalsATNM
13F holders, Q3 2025 (September 30)61holders −2
9new positions
10sold out
4famous investors
$1.60avg. 13F price*
At the end of Q3 2025, 61 institutions reported holding Actinium Pharmaceuticals Inc. (ATNM) in their 13F filings, down 2 from Q2 2025. 9 opened new positions and 10 sold out. The largest holders were Vanguard Group Inc. ($2.2M), Millennium Management ($1000K) and Acadian Asset Management LLC ($782K). 4 famous investors held it, including Israel Englander (0.0% of Millennium Management's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Actinium Pharmaceuticals Inc.
- CUSIP
- 00507W206
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 9 | $575K |
| Exits | 10 | $534K |
All 13F filers, Q2 2025 → Q3 2025: 754,389 shares bought and 1,069,018 shares sold, net −314,629 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 61 holders
| Vanguard Group Inc. | 0.00% | Add +0.9% | 1,384,543 | $2.2M |
| Millennium Management | 0.00% | Reduce -5.8% | 624,697 | $1000K |
| Acadian Asset Management LLC | 0.00% | Reduce -0.5% | 489,577 | $782K |
| BlackRock, Inc. | 0.00% | Reduce -22.3% | 363,486 | $582K |
| Geode Capital Management, LLC | 0.00% | Reduce -0.4% | 328,419 | $526K |
| Renaissance Technologies | 0.00% | Add +37.8% | 288,630 | $462K |
| Two Sigma Investments, LP | 0.00% | Add +403.4% | 234,293 | $375K |
| Gagnon Securities LLC | 0.07% | Reduce -0.2% | 226,257 | $362K |
| Two Sigma Advisers, LP | 0.00% | New | 196,376 | $314K |
| Citadel Advisors | 0.00% | Add +130.2% | 126,615 | $203K |
| State Street Corp. | 0.00% | Reduce -43.1% | 126,215 | $202K |
| Gen-Wealth Partners Inc | 0.06% | New | 109,381 | $175K |
| Susquehanna International Group, LLP | 0.00% | Add +26.9% | 105,440 | $169K |
| Jane Street Group, LLC | 0.00% | Reduce -57.4% | 93,022 | $149K |
| Bridgeway Capital Management, LLC | 0.00% | No change | 40,000 | $64K |
| Northern Trust Corp. | 0.00% | Reduce -40.2% | 35,895 | $57K |
| Dimensional Fund Advisors LP | 0.00% | No change | 34,923 | $56K |
| Vontobel Holding Ltd. | 0.00% | No change | 30,000 | $48K |
| Marshall Wace, LLP | 0.00% | Reduce -73.2% | 26,336 | $42K |
| Qube Research & Technologies Ltd | 0.00% | Reduce -48.5% | 25,722 | $41K |
| Callan Family Office, LLC | 0.00% | No change | 23,603 | $38K |
| Mayport, LLC | 0.01% | New | 22,000 | $35K |
| FMR LLC | 0.00% | Reduce -13.2% | 21,100 | $34K |
| North Star Asset Management Inc. | 0.00% | No change | 20,000 | $32K |
| XTX Topco Ltd | 0.00% | Add +50.7% | 19,961 | $32K |
| Wells Fargo & Company | 0.00% | Add +259.5% | 19,800 | $32K |
| AQR Capital Management | 0.00% | Reduce -78.2% | 16,805 | $27K |
| UBS Group AG | 0.00% | Reduce -43.0% | 14,576 | $23K |
| Cetera Investment Advisers | 0.00% | New | 14,491 | $23K |
| Russell Investments Group, Ltd. | 0.00% | Reduce -3.0% | 13,340 | $21K |
| Intrepid Financial Planning Group LLC | 0.01% | No change | 12,500 | $20K |
| Point72 Asia (Singapore) Pte. Ltd. | 0.00% | Reduce -51.1% | 10,295 | $16K |
| Level Four Advisory Services, LLC | 0.00% | New | 10,000 | $16K |
| Osaic Holdings, Inc. | 0.00% | No change | 7,150 | $12K |
| Royal Bank of Canada | 0.00% | Add +0.9% | 5,717 | $9K |
| Morgan Stanley | 0.00% | Reduce -89.4% | 4,719 | $8K |
| Rockefeller Capital Management L.P. | 0.00% | New | 4,500 | $7K |
| Advisory Services Network, LLC | 0.00% | New | 2,460 | $4K |
| Steward Partners Investment Advisory, LLC | 0.00% | Add +8.3% | 2,166 | $3K |
| Federated Hermes, Inc. | 0.00% | Reduce -63.8% | 1,925 | $3K |
| JPMorgan Chase & Co. | 0.00% | Reduce -91.6% | 1,562 | $2K |
| Citigroup Inc. | 0.00% | Reduce -91.5% | 1,285 | $2K |
| Cwm, LLC | 0.00% | Reduce -81.5% | 1,395 | $2K |
| Nisa Investment Advisors, LLC | 0.00% | No change | 958 | $2K |
| National Bank of Canada | 0.00% | No change | 855 | $1K |
| Bank of America Corp. | 0.00% | Reduce -97.5% | 648 | $1K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -77.6% | 555 | $888 |
| Group One Trading LLC | 0.00% | No change | 547 | $875 |
| SBI Securities Co., Ltd. | 0.00% | No change | 542 | $867 |
| Jones Financial Companies LLLP | 0.00% | Add +17.0% | 351 | $565 |
| Pittenger & Anderson Inc. | 0.00% | No change | 341 | $546 |
| Investors Research Corp | 0.00% | No change | 300 | $480 |
| Groupe la Francaise | 0.00% | New | 316 | $436 |
| BNP Paribas Financial Markets | 0.00% | Reduce -82.9% | 237 | $379 |
| Northwestern Mutual Wealth Management Co. | 0.00% | No change | 107 | $171 |
| EverSource Wealth Advisors, LLC | 0.00% | Reduce -60.0% | 86 | $138 |
| Essential Partners LLC | 0.00% | Reduce -76.0% | 53 | $85 |
| Arax Advisory Partners | 0.00% | New | 34 | $54 |
| Barclays PLC | 0.00% | Reduce -99.8% | 4 | $7 |
| True Wealth Design, LLC | 0.00% | Reduce -91.7% | 2 | $4 |
| Cubist Systematic Strategies, LLC | 0.00% | Reduce -100.0% | 1 | $2 |
"% of holder's portfolio" is ATNM's weight in each manager's 13F, not the share of Actinium Pharmaceuticals Inc. the manager owns.