🕵️ Perspective Therapeutics, Inc. ($CATX)
SEC insider & ownership activity, last 12 months · CIK 728387 · every row links its SEC filing
Over the last 12 months insiders sold $1.6M against $42K of open-market buying. Lantheus Alpha Therapy, LLC sold $1.3M (Aug–Sep). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
2 buyers, $42K (2 lots) · 2 sellers, $1.6M (7 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Lantheus Alpha Therapy, LLC | 0 | – | 5 | $1.3M | Sep 4, 2026 |
| Lantheus Holdings, Inc. | 0 | – | 2 | $357K | Sep 1, 2026 |
| Hunt Jonathan Robert | 1 | $22K | 0 | – | Nov 13, 2025 |
| Robert F. Williamson III | 1 | $20K | 0 | – | Nov 12, 2025 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Lantheus Medical Imaging, Inc. | 10.0% | 13D | May 15, 2024 | filing ↗ | |
| Lantheus Holdings, Inc. | 10.0% | 13D | May 15, 2024 | filing ↗ | |
| Lantheus Alpha Therapy, LLC | 10.0% | 13D | May 15, 2024 | filing ↗ | |
| Commodore Capital LP | 9.9% | 13G | Feb 9, 2026 | filing ↗ | |
| Commodore Capital Master LP | 9.9% | 13G | Feb 9, 2026 | filing ↗ | |
| Robert Egen Atkinson | 9.9% | 13G | Feb 9, 2026 | filing ↗ | |
| Michael Kramarz | 9.9% | 13G | Feb 9, 2026 | filing ↗ | |
| Chen Yu | 6.9% | 13G | Feb 6, 2026 | filing ↗ | |
| BlackRock, Inc. | 6.8% | 13G | Jul 29, 2026 | filing ↗ | |
| Qatar Investment Authority | 6.2% | 13G | Feb 5, 2026 | filing ↗ | |
| Millennium Management LLC | 5.5% | 13G | Aug 13, 2026 | filing ↗ | |
| Millennium Group Management LLC | 5.5% | 13G | Aug 13, 2026 | filing ↗ | |
| Israel A. Englander | 5.5% | 13G | Aug 13, 2026 | filing ↗ | |
| Avidity Partners Management LP | 5.3% | 13G | Mar 10, 2026 | filing ↗ | |
| Avidity Partners Management (GP) LLC | 5.3% | 13G | Mar 10, 2026 | filing ↗ | |
| Avidity Capital Partners Fund (GP) LP | 5.3% | 13G | Mar 10, 2026 | filing ↗ | |
| Avidity Capital Partners (GP) LLC | 5.3% | 13G | Mar 10, 2026 | filing ↗ | |
| Michael Gregory | 5.3% | 13G | Mar 10, 2026 | filing ↗ | |
| State Street Corporation | 5.3% | 13G | Aug 7, 2026 | filing ↗ | |
| Integrated CORE Strategies (US) LLC | 5.2% | 13G | Aug 13, 2026 | filing ↗ | |
| Avidity Private Master Fund I LP | 5.1% | 13G | Mar 10, 2026 | filing ↗ |
Planned insider sales (Form 144)
No sale notices filed in the last 12 months.
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Other events (8.01) | Sep 14, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 14, 2026 | filing ↗ |
| Other events (8.01) | Sep 8, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 8, 2026 | filing ↗ |
| Earnings (2.02) | Aug 10, 2026 | filing ↗ |
| Other events (8.01) | Aug 10, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 10, 2026 | filing ↗ |
| Other events (8.01) | Aug 3, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 3, 2026 | filing ↗ |
| Other events (8.01) | Jul 1, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 1, 2026 | filing ↗ |
| Other events (8.01) | Jun 1, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 1, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 27, 2026 | filing ↗ |
| Other events (8.01) | May 21, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 21, 2026 | filing ↗ |
| Earnings (2.02) | May 11, 2026 | filing ↗ |
| Other events (8.01) | May 11, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 11, 2026 | filing ↗ |
| Earnings (2.02) | May 4, 2026 | filing ↗ |
| Other events (8.01) | May 4, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 4, 2026 | filing ↗ |
| Other events (8.01) | Apr 18, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 18, 2026 | filing ↗ |
| Other events (8.01) | Apr 1, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 1, 2026 | filing ↗ |
| Earnings (2.02) | Mar 16, 2026 | filing ↗ |
| Other events (8.01) | Mar 16, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 16, 2026 | filing ↗ |
| Material agreement (1.01) | Feb 2, 2026 | filing ↗ |