Actinium PharmaceuticalsATNM
13F holders, Q2 2026 (June 30)At the end of Q2 2026, 47 institutions reported holding Actinium Pharmaceuticals Inc. (ATNM) in their 13F filings, down 7 from Q1 2026. 4 opened new positions and 12 sold out. The largest holders were Vanguard Capital Management LLC ($1.2M), Compass Financial Management LLC ($588K) and Millennium Management ($504K). 2 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Actinium Pharmaceuticals Inc.
- CUSIP
- 00507W206
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 4 | $43K |
| Exits | 12 | $256K |
All 13F filers, Q1 2026 → Q2 2026: 131,803 shares bought and 742,212 shares sold, net −610,409 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 47 holders
| Vanguard Capital Management LLC | 0.00% | Reduce -1.4% | 1,238,302 | $1.2M |
| Compass Financial Management LLC | 0.07% | — | 600,230 | $588K |
| Millennium Management | 0.00% | Reduce -8.9% | 514,580 | $504K |
| Acadian Asset Management LLC | 0.00% | Reduce -17.4% | 496,288 | $485K |
| BlackRock, Inc. | 0.00% | Add +6.7% | 395,896 | $388K |
| Renaissance Technologies | 0.00% | Reduce -19.3% | 380,491 | $373K |
| Geode Capital Management, LLC | 0.00% | Reduce -3.3% | 324,945 | $319K |
| Two Sigma Investments, LP | 0.00% | Reduce -23.1% | 259,179 | $254K |
| Gagnon Securities LLC | 0.03% | Reduce -9.5% | 182,142 | $178K |
| Vanguard Fiduciary Trust Co. | 0.00% | Add +0.8% | 161,526 | $158K |
| State Street Corp. | 0.00% | Reduce -3.2% | 122,215 | $120K |
| Gen-Wealth Partners Inc | 0.03% | Reduce -1.9% | 105,111 | $103K |
| Northern Trust Corp. | 0.00% | Reduce -8.1% | 69,743 | $68K |
| Qube Research & Technologies Ltd | 0.00% | Add +220.3% | 57,812 | $57K |
| Susquehanna International Group, LLP | 0.00% | Reduce -54.2% | 56,822 | $56K |
| Vontobel Holding Ltd. | 0.00% | Add +66.7% | 50,000 | $49K |
| Bluespring Wealth Management, LLC | 0.00% | New | 43,000 | $42K |
| Bridgeway Capital Management, LLC | 0.00% | No change | 40,000 | $39K |
| Am Investment Strategies LLC | 0.01% | No change | 29,356 | $29K |
| Gerald Baker Financial Group LLC | 0.01% | No change | 22,691 | $22K |
| Mayport, LLC | 0.00% | No change | 22,000 | $22K |
| North Star Asset Management Inc. | 0.00% | No change | 20,000 | $20K |
| Wells Fargo & Company | 0.00% | No change | 19,800 | $19K |
| Osaic Holdings, Inc. | 0.00% | Reduce -5.0% | 18,865 | $18K |
| XTX Topco Ltd | 0.00% | Reduce -54.5% | 13,731 | $13K |
| Savvy Advisors, Inc. | 0.00% | No change | 10,000 | $10K |
| Vanguard Global Advisers, LLC | 0.00% | No change | 8,893 | $9K |
| UBS Group AG | 0.00% | Reduce -53.8% | 6,758 | $7K |
| Morgan Stanley | 0.00% | Reduce -53.4% | 6,341 | $6K |
| Rockefeller Capital Management L.P. | 0.00% | No change | 4,000 | $4K |
| Steward Partners Investment Advisory, LLC | 0.00% | Reduce -7.7% | 2,000 | $2K |
| Northwestern Mutual Wealth Management Co. | 0.00% | Add +1448.6% | 1,657 | $2K |
| JPMorgan Chase & Co. | 0.00% | No change | 1,494 | $1K |
| Jones Financial Companies LLLP | 0.00% | Add +284.9% | 1,351 | $1K |
| National Bank of Canada | 0.00% | Reduce -9.8% | 921 | $903 |
| SBI Securities Co., Ltd. | 0.00% | Reduce -9.2% | 492 | $482 |
| Pittenger & Anderson Inc. | 0.00% | No change | 341 | $335 |
| Harbour Investments, Inc. | 0.00% | New | 334 | $327 |
| Nisa Investment Advisors, LLC | 0.00% | No change | 330 | $323 |
| Investors Research Corp | 0.00% | No change | 300 | $294 |
| Allied Private Wealth LLC | 0.00% | — | 240 | $232 |
| Barclays PLC | 0.00% | New | 203 | $199 |
| BNP Paribas Financial Markets | 0.00% | Reduce -15.2% | 201 | $197 |
| Federated Hermes, Inc. | 0.00% | Reduce -90.2% | 137 | $134 |
| Axiom Investment Management LLC | 0.00% | New | 5 | $5 |
| Caitong International Asset Management Co., Ltd | 0.00% | No change | 1 | $1 |
| Royal Bank of Canada | 0.00% | No change | 45 | $0 |
"% of holder's portfolio" is ATNM's weight in each manager's 13F, not the share of Actinium Pharmaceuticals Inc. the manager owns.