| Insiders | Shares | % | Avg Price | Total $ | |
|---|---|---|---|---|---|
| Buys | 4 | +4,520,260 | 69% | $18.18 | +$82,199,970 |
| Sells | 6 | -1,998,708 | 31% | $38.65 | -$77,251,646 |
| Net | -2 | +2,521,552 | 39% | +$4,948,324 |
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Report Date |
|---|---|---|---|---|---|
| Brian Taylor Slingsby | Director, 10%+ Owner | $271,156,102 | -$43,350,000 | -14% | 19 Feb 2026 |
| Srinivas Akkaraju | Director, 10%+ Owner | $201,471,033 | +$14,999,993 | +8% | 19 Feb 2026 |
| Samsara BioCapital GP, LLC | 10%+ Owner | $76,611,366 | 13 Mar 2025 | ||
| Jon Congleton | Chief Executive Officer, Director | $26,740,148 | -$10,679,699 | -29% | 19 Feb 2026 |
| HBM Healthcare Investments (Cayman) Ltd. | 10%+ Owner | $19,199,542 | 14 Feb 2023 | ||
| David Malcom Rodman | Chief Medical Officer | $2,214,004 | -$13,432,017 | -86% | 09 Mar 2026 |
| Adam Scott Levy | CFO and Secretary | $1,663,882 | -$7,524,038 | -82% | 19 Feb 2026 |
| Eric Warren | Chief Commercial Officer | $1,316,352 | 04 Mar 2026 | ||
| Daphne Karydas | Director | $212,536 | -$689,797 | -76% | 19 Feb 2026 |
| Alexander M. Gold | Director | $212,536 | -$1,576,095 | -88% | 19 Feb 2026 |
| RA CAPITAL MANAGEMENT, L.P. | Director | $212,536 | +$29,999,985 | 19 Feb 2026 | |
| Glenn Sblendorio | Director | $212,536 | 19 Feb 2026 | ||
| Derek DiRocco | Director | $212,536 | 19 Feb 2026 | ||
| Takeshi Takahashi | Director | 12 Jul 2023 | |||
| Alexander Asam | Director | 09 Feb 2023 | |||
| Olivier Litzka | Director | 22 May 2024 |
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| David Malcom Rodman | MLYS | Common Stock | Sale | -2.56% | $58,270 | $26.84 | -2,171 | 82,489 | 09 Mar 2026 | Direct |
| David Malcom Rodman | MLYS | Common Stock | Options Exercise | 2.63% | 2,171 | 84,660 | 09 Mar 2026 | Direct | ||
| David Malcom Rodman | MLYS | Stock Option | Options Exercise | -8.33% | -2,171 | 23,876 | 09 Mar 2026 | Direct | ||
| Ra Capital Management, L.P. | MLYS | Common Stock | Award | 6,200 | 6,200 | 19 Feb 2026 | See footnotes | |||
| Ra Capital Management, L.P. | MLYS | Stock Option (Right to Buy) | Award | 8,300 | 8,300 | 19 Feb 2026 | See Footnote | |||
| Jon Congleton | MLYS | Common Stock | Award | 22% | 140,900 | 780,051 | 19 Feb 2026 | Direct | ||
| Jon Congleton | MLYS | Stock Option | Award | 187,900 | 187,900 | 19 Feb 2026 | Direct | |||
| Glenn Sblendorio | MLYS | Common Stock | Award | 6,200 | 6,200 | 19 Feb 2026 | Direct | |||
| Glenn Sblendorio | MLYS | Stock Option | Award | 8,300 | 8,300 | 19 Feb 2026 | Direct | |||
| Alexander M. Gold | MLYS | Common Stock | Award | 6,200 | 6,200 | 19 Feb 2026 | Direct | |||
| Alexander M. Gold | MLYS | Stock Option | Award | 8,300 | 8,300 | 19 Feb 2026 | Direct | |||
| Daphne Karydas | MLYS | Common Stock | Award | 6,200 | 6,200 | 19 Feb 2026 | Direct | |||
| Daphne Karydas | MLYS | Stock Option | Award | 8,300 | 8,300 | 19 Feb 2026 | Direct | |||
| Brian Taylor Slingsby | MLYS | Common Stock | Other | 0.08% | 6,200 | 7,910,038 | 19 Feb 2026 | See footnote | ||
| Brian Taylor Slingsby | MLYS | Common Stock | Other | -100% | -6,200 | 0 | 19 Feb 2026 | Direct | ||
| Brian Taylor Slingsby | MLYS | Common Stock | Award | 6,200 | 6,200 | 19 Feb 2026 | Direct | |||
| Brian Taylor Slingsby | MLYS | Stock Option | Other | 8,300 | 8,300 | 19 Feb 2026 | See footnote | |||
| Brian Taylor Slingsby | MLYS | Stock Option | Other | -100% | -8,300 | 0 | 19 Feb 2026 | Direct | ||
| Brian Taylor Slingsby | MLYS | Stock Option | Award | 8,300 | 8,300 | 19 Feb 2026 | Direct | |||
| Srinivas Akkaraju | MLYS | Common Stock | Award | 6,200 | 6,200 | 19 Feb 2026 | Direct | |||
| Srinivas Akkaraju | MLYS | Stock Option | Award | 8,300 | 8,300 | 19 Feb 2026 | Direct | |||
| Derek DiRocco | MLYS | Common Stock | Award | 6,200 | 6,200 | 19 Feb 2026 | Direct | |||
| Derek DiRocco | MLYS | Stock Option | Award | 8,300 | 8,300 | 19 Feb 2026 | Direct | |||
| David Malcom Rodman | MLYS | Common Stock | Award | 87.1% | 38,400 | 82,489 | 19 Feb 2026 | Direct | ||
| David Malcom Rodman | MLYS | Stock Option | Award | 51,300 | 51,300 | 19 Feb 2026 | Direct | |||
| Adam Scott Levy | MLYS | Common Stock | Award | 461.9% | 39,900 | 48,538 | 19 Feb 2026 | Direct | ||
| Adam Scott Levy | MLYS | Stock Option | Award | 53,300 | 53,300 | 19 Feb 2026 | Direct | |||
| David Malcom Rodman | MLYS | Common Stock | Sale | -0.94% | $11,505 | $27.59 | -417 | 44,089 | 17 Feb 2026 | Direct |
| David Malcom Rodman | MLYS | Common Stock | Options Exercise | 0.95% | 417 | 44,506 | 17 Feb 2026 | Direct | ||
| David Malcom Rodman | MLYS | Stock Option | Options Exercise | -7.15% | -417 | 5,417 | 17 Feb 2026 | Direct | ||
| David Malcom Rodman | MLYS | Common Stock | Sale | -24.2% | $385,732 | $27.44 | -14,055 | 44,089 | 13 Feb 2026 | Direct |
| David Malcom Rodman | MLYS | Common Stock | Options Exercise | 16.4% | 7,707 | 54,603 | 13 Feb 2026 | Direct | ||
| David Malcom Rodman | MLYS | Stock Option | Options Exercise | -7.16% | -7,707 | 100,001 | 13 Feb 2026 | Direct | ||
| David Malcom Rodman | MLYS | Common Stock | Sale | -11.2% | $184,077 | $28.99 | -6,349 | 50,437 | 12 Feb 2026 | Direct |
| David Malcom Rodman | MLYS | Common Stock | Options Exercise | 12.6% | 6,349 | 56,786 | 12 Feb 2026 | Direct | ||
| David Malcom Rodman | MLYS | Stock Option | Options Exercise | -16.7% | -6,349 | 31,743 | 12 Feb 2026 | Direct | ||
| David Malcom Rodman | MLYS | Common Stock | Sale | -4.13% | $65,586 | $30.21 | -2,171 | 50,437 | 09 Feb 2026 | Direct |
| David Malcom Rodman | MLYS | Common Stock | Options Exercise | 4.3% | 2,171 | 52,608 | 09 Feb 2026 | Direct | ||
| David Malcom Rodman | MLYS | Stock Option | Options Exercise | -7.69% | -2,171 | 26,047 | 09 Feb 2026 | Direct | ||
| David Malcom Rodman | MLYS | Common Stock | Sale | -0.82% | $13,354 | $32.10 | -416 | 50,437 | 20 Jan 2026 | Direct |
| David Malcom Rodman | MLYS | Common Stock | Options Exercise | 0.82% | 416 | 50,853 | 20 Jan 2026 | Direct | ||
| David Malcom Rodman | MLYS | Stock Option | Options Exercise | -6.66% | -416 | 5,834 | 20 Jan 2026 | Direct | ||
| David Malcom Rodman | MLYS | Common Stock | Sale | -18.4% | $370,645 | $32.61 | -11,367 | 50,437 | 14 Jan 2026 | Direct |
| David Malcom Rodman | MLYS | Common Stock | Sale | -11.1% | $252,470 | $32.75 | -7,709 | 61,804 | 13 Jan 2026 | Direct |
| David Malcom Rodman | MLYS | Common Stock | Options Exercise | 12.5% | 7,709 | 69,513 | 13 Jan 2026 | Direct | ||
| David Malcom Rodman | MLYS | Stock Option | Options Exercise | -6.89% | -7,709 | 104,167 | 13 Jan 2026 | Direct | ||
| Jon Congleton | MLYS | Common Stock | Sale | -2.48% | $529,640 | $32.62 | -16,236 | 639,151 | 12 Jan 2026 | Direct |
| David Malcom Rodman | MLYS | Common Stock | Sale | -9.31% | $205,143 | $32.32 | -6,348 | 61,804 | 12 Jan 2026 | Direct |
| David Malcom Rodman | MLYS | Common Stock | Options Exercise | 10.3% | 6,348 | 68,152 | 12 Jan 2026 | Direct | ||
| David Malcom Rodman | MLYS | Stock Option | Options Exercise | -14.3% | -6,348 | 38,092 | 12 Jan 2026 | Direct |