Only open-market buys / sells (codes P/S) are a conviction signal; grants, option exercises, tax-withholding, and gifts are compensation mechanics, shown but greyed. The trailing 12-month tallies run to today but the store covers filings through 2026-06-30 only (SEC bulk data sets publish quarterly), so recent activity may be absent.
| Date | Insider | Role | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2025-11-13 | Hunt Jonathan Robert | Officer | +Buy | 11,000 | $2.03 | $22,330 |
| 2025-11-12 | Williamson Robert F III | Director | +Buy | 9,498 | $2.10 | $19,946 |
| 2025-03-31 | Woods Lori A | Director | +Buy | 23,475 | $2.13 | $50,002 |
| 2025-03-31 | Williamson Robert F III | Director | +Buy | 38,145 | $2.14 | $81,630 |
| 2025-03-28 | Graham Juan | Officer | +Buy | 33,333 | $2.25 | $74,999 |
| 2025-03-28 | Williamson Robert F III | Director | +Buy | 22,192 | $2.27 | $50,376 |
| 2025-03-28 | Spoor Johan M. | Director,Officer | +Buy | 22,026 | $2.24 | $49,338 |
| 2025-03-28 | Spoor Johan M. | Director,Officer | +Buy | 4,650 | $2.21 | $10,277 |
| 2024-12-04 | Spoor Johan M. | Director,Officer | +Buy | 8,000 | $3.77 | $30,160 |
| 2024-12-04 | HENSON HEIDI | Director | +Buy | 25,975 | $3.85 | $100,004 |
| 2024-11-25 | Spoor Johan M. | Director,Officer | +Buy | 5,400 | $3.80 | $20,520 |
| 2024-11-25 | Spoor Johan M. | Director,Officer | +Buy | 14,500 | $3.78 | $54,810 |
| 2024-11-25 | Spoor Johan M. | Director,Officer | +Buy | 6,600 | $3.80 | $25,080 |
| 2024-11-25 | Hunt Jonathan Robert | Officer | +Buy | 29 | $3.94 | $114 |
| 2024-11-25 | Hunt Jonathan Robert | Officer | +Buy | 400 | $3.55 | $1,420 |
| 2024-11-25 | Hunt Jonathan Robert | Officer | +Buy | 2,400 | $3.60 | $8,640 |
| 2024-11-25 | Hunt Jonathan Robert | Officer | +Buy | 10,000 | $3.88 | $38,800 |
| 2024-11-25 | Williamson Robert F III | Director | +Buy | 2,619 | $3.67 | $9,612 |
| 2024-11-25 | Williamson Robert F III | Director | +Buy | 3,647 | $3.62 | $13,202 |
| 2024-06-17 | Hunt Jonathan Robert | Officer | +Buy | 1,800 | $9.82 | $17,676 |
| 2024-06-14 | Woods Lori A | Director | +Buy | 83 | $10.80 | $896 |
| 2024-06-14 | Woods Lori A | Director | +Buy | 4,504 | $10.90 | $49,094 |
| 2024-06-13 | Spoor Johan M. | Director,Officer | +Buy | 100,000 | $1.17 | $117,000 |
| 2024-06-03 | Woods Lori A | Director | +Buy | 34,246 | $1.46 | $49,999 |
| 2024-05-31 | Williamson Robert F III | Director | +Buy | 55,000 | $1.38 | $75,900 |
| 2024-05-31 | Hunt Jonathan Robert | Officer | +Buy | 12,000 | $1.40 | $16,800 |
| 2024-05-31 | Hunt Jonathan Robert | Officer | +Buy | 13,006 | $1.40 | $18,208 |
| 2024-05-29 | Williamson Robert F III | Director | +Buy | 18,656 | $1.34 | $24,999 |
| 2024-05-29 | Williamson Robert F III | Director | +Buy | 11,375 | $1.32 | $15,015 |
| 2024-04-23 | Austin Mark John | Officer | +Exercise | 30,000 | $0.36 | $10,800 |
| 2024-03-06 | Lantheus Alpha Therapy, LLC | TenPercentOwner | +Buy | 60,431,039 | $0.95 | $57M |
| 2024-01-30 | Williamson Robert F III | Director | +Buy | 3,500 | $0.70 | $2,450 |
| 2024-01-30 | Williamson Robert F III | Director | +Buy | 18,579 | $0.71 | $13,191 |
| 2024-01-30 | Williamson Robert F III | Director | +Buy | 5,127 | $0.71 | $3,640 |
| 2024-01-30 | Williamson Robert F III | Director | +Buy | 57,121 | $0.71 | $40,556 |
| 2024-01-30 | Williamson Robert F III | Director | +Buy | 42,879 | $0.72 | $30,873 |
| 2024-01-29 | Williamson Robert F III | Director | +Buy | 4,031 | $0.64 | $2,580 |
| 2024-01-29 | Williamson Robert F III | Director | +Buy | 21,235 | $0.64 | $13,590 |
| 2024-01-26 | Williamson Robert F III | Director | +Buy | 14,850 | $0.61 | $9,059 |
| 2024-01-26 | Williamson Robert F III | Director | +Buy | 12,250 | $0.61 | $7,473 |
| 2024-01-26 | Williamson Robert F III | Director | +Buy | 50,000 | $0.54 | $27,000 |
| 2024-01-26 | Williamson Robert F III | Director | +Buy | 25,000 | $0.55 | $13,750 |
| 2024-01-26 | Williamson Robert F III | Director | +Buy | 8,513 | $0.59 | $5,023 |
| 2024-01-25 | Williamson Robert F III | Director | +Buy | 22,134 | $0.49 | $10,846 |
| 2024-01-24 | Williamson Robert F III | Director | +Buy | 29,862 | $0.49 | $14,632 |
| 2024-01-24 | Puhlmann Markus | Officer | +Buy | 280,000 | $0.50 | $140,000 |
| 2023-12-21 | Williamson Robert F III | Director | +Buy | 3,663 | $0.33 | $1,209 |
| 2023-12-19 | Puhlmann Markus | Officer | +Buy | 400,000 | $0.34 | $136,000 |
| 2023-12-19 | Williamson Robert F III | Director | +Buy | 13,680 | $0.32 | $4,378 |
| 2023-12-18 | Puhlmann Markus | Officer | +Buy | 60,419 | $0.26 | $15,709 |
| 2023-12-18 | Williamson Robert F III | Director | +Buy | 10,000 | $0.26 | $2,600 |
| 2023-12-18 | Hunt Jonathan Robert | Officer | +Buy | 125,000 | $0.26 | $32,500 |
| 2023-12-15 | Woods Lori A | Director | +Buy | 152,962 | $0.27 | $41,300 |
| 2023-12-15 | Puhlmann Markus | Officer | +Buy | 135,006 | $0.27 | $36,452 |
| 2023-12-14 | Woods Lori A | Director | +Buy | 32,238 | $0.27 | $8,704 |
Source: the SEC bulk insider (Form 3/4/5) data sets — non-derivative transactions in the issuer's common stock, most recent first, covering filings through 2026-06-30. Insiders file within 2 business days of a transaction, but the bulk sets publish quarterly, so this store lags live filings; option/derivative lines are excluded. Codes: P buy · S sell · A grant · M/X/C exercise · F tax · G gift.
Model-derived estimate for research. See the Disclaimer.
