ATNM — Actinium Pharmaceuticals, Inc.
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2016-01-04.
Performance
Technicals
Others in Healthcare
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2025-08-18 | SETH SANDESH Chief Executive Officer | Shares withheld for tax | 120.9K | 1.71 | 206.7K |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC | 1.2M | 1.3M |
| MILLENNIUM MANAGEMENT LLC | 561.9K | 564.6K |
| RENAISSANCE TECHNOLOGIES LLC | 469.4K | 471.6K |
| BlackRock, Inc. | 369.5K | 371.2K |
| TWO SIGMA INVESTMENTS, LP | 335.6K | 337.2K |
| GEODE CAPITAL MANAGEMENT, LLC | 334.6K | 336.1K |
| GAGNON SECURITIES LLC | 200.4K | 201.3K |
| VANGUARD FIDUCIARY TRUST CO | 159.5K | 160.3K |
| STATE STREET CORP | 125.6K | 126.2K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 123.4K | 124.0K |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Latest SEC filings
| form | filed | period | |
|---|---|---|---|
| 8-K | 2026-08-14 | 2026-08-12 | on EDGAR ↗ |
| 10-Q | 2026-08-07 | 2026-06-30 | on EDGAR ↗ |
| 8-K | 2026-06-18 | 2026-06-18 | on EDGAR ↗ |
| 8-K | 2026-05-29 | 2026-05-27 | on EDGAR ↗ |
| 10-Q | 2026-05-08 | 2026-03-31 | on EDGAR ↗ |
| 10-K | 2026-03-30 | 2025-12-31 | on EDGAR ↗ |
| 8-K/A | 2026-03-26 | 2025-11-26 | on EDGAR ↗ |
| 8-K | 2026-02-13 | 2026-02-11 | on EDGAR ↗ |
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
Recent headlines
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