Actinium Pharmaceuticals (ATNM)
Develops targeted radiotherapies for cancer and transplant conditioning.
$1.20
vs last close+0.03 (+2.56%)
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13F · 13D/G · Form 4
| Institutions | 16.83% | 5.29M shares | |
|---|---|---|---|
| 48 holders · as of Jun 30, 2026 | |||
| Insiders | 8.27% | 2.60M shares | |
| 8 holders · as of Sep 10, 2026 | |||
| Strategic holders | 10.55% | 3.32M shares | |
| 2 holders · as of Nov 4, 2024 | |||
| Other | 64.35% | 20.23M shares | |
| remainder | |||
31.44M company shares as of Sep 23, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
13F, as of Jun 30, 2026
48 holders · 5.29M shares · 7 new positions · 13 increased · 21 reduced · 13 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Vanguard Capital Management LLC | 1.24M | 3.94% | −17.2K | Aug 13, 2026 |
| Compass Financial Management LLC | 600.2K | 1.91% | +600.2Knew | Aug 12, 2026 |
| Millennium Management LLC | 514.6K | 1.64% | −50.0K | Aug 14, 2026 |
| Acadian Asset Management LLC | 496.3K | 1.58% | −104.5K | Aug 13, 2026 |
| BlackRock, Inc. | 395.9K | 1.26% | +24.7K | Aug 7, 2026 |
| Renaissance Technologies LLC | 380.5K | 1.21% | −91.1K | Aug 13, 2026 |
| Geode Capital Management, LLC | 324.9K | 1.03% | −11.1K | Aug 12, 2026 |
| Two Sigma Investments, LP | 259.2K | 0.82% | −78.0K | Aug 14, 2026 |
13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| The Vanguard Group | 5.21% | 1.63M | 13G | Nov 4, 2024 |
Form 4
Latest trades
No open-market trades in the last 12 months.
House and Senate disclosures
Not reported.