2026Q1
| Insider | Role (last 12 mo) | Shares held | Filed at |
|---|---|---|---|
| Behbahani Ali | Director | 4,448,757 | Jun 21, 2024 |
| Biotech Growth N V | 10% Owner | 2,733,547 | Mar 20, 2025 |
| Bb Biotech Ag | 10% Owner | 2,733,547 | Mar 20, 2025 |
| Walker Paul Edward | — | 2,648,757 | Jan 29, 2020 |
| Sonsini Peter W. | — | 2,648,757 | Jan 29, 2020 |
| Exec date | Filing date | Insider | Role | Signal | Confidence | Shares | % of shares | Under plan? | Amount (USD) |
|---|---|---|---|---|---|---|---|---|---|
| Jan 21, 2026 | Jan 23, 2026 | Jones Erika | Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jan 21, 2026 | Jan 23, 2026 | Hatzis-Schoch Brent | Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jan 21, 2026 | Jan 23, 2026 | Buck Elizabeth | CHIEF SCIENTIFIC OFFICER | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jan 21, 2026 | Jan 23, 2026 | Yurasov Sergey | CHIEF MEDICAL OFFICER | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jan 21, 2026 | Jan 23, 2026 | Velleca Mark A. | CEO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Dec 12, 2025 | Dec 15, 2025 | Behbahani Ali | Director | Neutral | 55.0 | +5,208 | 0.11% | ✗ | - |
| Dec 12, 2025 | Dec 15, 2025 | Raman Prakash | Director | Neutral | 90.0 | +4,665 | 17.70% | ✗ | - |
| Sep 19, 2025 | Sep 22, 2025 | Behbahani Ali | Director | Neutral | 55.0 | +4,291 | 0.09% | ✗ | - |
| Sep 19, 2025 | Sep 22, 2025 | Raman Prakash | Director | Neutral | 90.0 | +3,843 | 17.07% | ✗ | - |
| Jun 20, 2025 | Jun 20, 2025 | Behbahani Ali | Director | Neutral | 55.0 | +6,170 | 0.14% | ✗ | - |
| Jun 20, 2025 | Jun 20, 2025 | Raman Prakash | Director | Neutral | 90.0 | +5,526 | 32.52% | ✗ | - |
| Jun 12, 2025 | Jun 12, 2025 | Behbahani Ali | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 12, 2025 | Jun 12, 2025 | Menzel Garry E | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 12, 2025 | Jun 12, 2025 | Raman Prakash | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 12, 2025 | Jun 12, 2025 | Campbell Shannon | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 12, 2025 | Jun 12, 2025 | Dhingra Kapil | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 12, 2025 | Jun 12, 2025 | Kulkarni Samarth | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Mar 21, 2025 | Mar 21, 2025 | Behbahani Ali | Director | Neutral | 55.0 | +7,646 | 0.17% | ✗ | - |
| Mar 21, 2025 | Mar 21, 2025 | Raman Prakash | Director | Neutral | 90.0 | +6,848 | 67.50% | ✗ | - |
| Mar 19, 2025 | Mar 20, 2025 | BIOTECH GROWTH N V | 10% Owner | Sell | 15.0 | -5,784,292 | -67.91% | ✗ | $12M |
| Jan 30, 2025 | Jan 31, 2025 | Velleca Mark A. | CEO | Neutral | 90.0 | +75,000 | 161.21% | ✗ | - |
| Jan 30, 2025 | Jan 31, 2025 | Yurasov Sergey | CHIEF MEDICAL OFFICER | Neutral | 90.0 | +75,000 | 100.00% | ✗ | - |
| Jan 30, 2025 | Jan 31, 2025 | Buck Elizabeth | CHIEF SCIENTIFIC OFFICER | Neutral | 90.0 | +75,000 | 78.79% | ✗ | - |
| Jan 30, 2025 | Jan 31, 2025 | Jones Erika | Officer | Neutral | 90.0 | +75,000 | 738.92% | ✗ | - |
| Jan 30, 2025 | Jan 31, 2025 | Hatzis-Schoch Brent | Officer | Neutral | 90.0 | +75,000 | 892.86% | ✗ | - |
| Dec 13, 2024 | Dec 16, 2024 | Behbahani Ali | Director | Neutral | 55.0 | +5,750 | 0.13% | ✗ | - |
| Dec 13, 2024 | Dec 16, 2024 | Raman Prakash | Director | Neutral | 90.0 | +5,150 | 103.10% | ✗ | - |
| Dec 13, 2024 | Dec 16, 2024 | Campbell Shannon | Director | Neutral | 90.0 | +4,500 | 103.09% | ✗ | - |
| Sep 20, 2024 | Sep 20, 2024 | Behbahani Ali | Director | Neutral | 55.0 | +3,007 | 0.07% | ✗ | - |
| Sep 20, 2024 | Sep 20, 2024 | Campbell Shannon | Director | Neutral | 90.0 | +2,354 | 117.06% | ✗ | - |
| Sep 20, 2024 | Sep 20, 2024 | Raman Prakash | Director | Neutral | 90.0 | +2,694 | 117.08% | ✗ | - |
| Aug 28, 2024 | Aug 30, 2024 | Versant Venture Capital VI, L.P. | 10% Owner | Sell | 17.5 | -221,600 | -3.45% | ✗ | $1.4M |
| Jun 21, 2024 | Jun 21, 2024 | Behbahani Ali | Director | Neutral | 55.0 | +2,887 | 0.06% | ✗ | - |
| Jun 21, 2024 | Jun 21, 2024 | Raman Prakash | Director | Neutral | 90.0 | +2,301 | 100.00% | ✗ | - |
| Jun 21, 2024 | Jun 21, 2024 | Campbell Shannon | Director | Neutral | 90.0 | +2,011 | 100.00% | ✗ | - |
| Jun 6, 2024 | Jun 6, 2024 | Behbahani Ali | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 6, 2024 | Jun 6, 2024 | Kulkarni Samarth | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 6, 2024 | Jun 6, 2024 | Menzel Garry E | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 6, 2024 | Jun 6, 2024 | Raman Prakash | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 6, 2024 | Jun 6, 2024 | Campbell Shannon | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 6, 2024 | Jun 6, 2024 | Dhingra Kapil | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Apr 10, 2024 | Apr 12, 2024 | Campbell Shannon | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Apr 10, 2024 | Apr 12, 2024 | Raman Prakash | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Apr 12, 2024 | Campbell Shannon | Director | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Apr 12, 2024 | Raman Prakash | Director | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Mar 15, 2024 | Apr 3, 2024 | Behbahani Ali | Director | Neutral | 55.0 | +3,166 | 0.07% | ✗ | - |
| Mar 15, 2024 | Apr 3, 2024 | DIXON WENDY L | Director | Neutral | 85.0 | +3,253 | 9.35% | ✗ | - |
| Feb 14, 2024 | Feb 15, 2024 | Ni Fang | Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Feb 14, 2024 | Feb 15, 2024 | Hatzis-Schoch Brent | Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Feb 14, 2024 | Feb 15, 2024 | Yurasov Sergey | CHIEF MEDICAL OFFICER | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Feb 14, 2024 | Feb 15, 2024 | Buck Elizabeth | CHIEF SCIENTIFIC OFFICER | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Feb 14, 2024 | Feb 15, 2024 | Velleca Mark A. | CEO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Feb 14, 2024 | Feb 15, 2024 | Jones Erika | Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Dec 15, 2023 | Dec 15, 2023 | Behbahani Ali | Director | Neutral | 55.0 | +4,455 | 0.10% | ✗ | - |
| Dec 15, 2023 | Dec 15, 2023 | DIXON WENDY L | Director | Neutral | 90.0 | +4,043 | 13.14% | ✗ | - |
| Oct 17, 2023 | Oct 19, 2023 | BIOTECH GROWTH N V | 10% Owner | Buy | 90.0 | +400,000 | 4.93% | ✗ | $934.1K |
| Sep 15, 2023 | Sep 18, 2023 | Behbahani Ali | Director | Neutral | 55.0 | +3,299 | 0.07% | ✗ | - |
| Sep 15, 2023 | Sep 18, 2023 | Velleca Mark A. | CEO | Neutral | 90.0 | +5,208 | 12.61% | ✗ | - |
| Sep 15, 2023 | Sep 18, 2023 | DIXON WENDY L | Director | Neutral | 90.0 | +2,986 | 10.75% | ✗ | - |
| Jul 5, 2023 | Jul 7, 2023 | RA CAPITAL MANAGEMENT, L.P. | Director | Buy | 100.0 | +935,850 | 41.08% | ✗ | $4.7M |
| Jul 5, 2023 | Jul 6, 2023 | Behbahani Ali | Director | Buy | 100.0 | +1,000,000 | 28.66% | ✗ | $5M |
| Jun 30, 2023 | Jul 3, 2023 | BIOTECH GROWTH N V | 10% Owner | Buy | 100.0 | +1,000,000 | 14.05% | ✗ | $5M |
| Jun 27, 2023 | Jun 29, 2023 | BIOTECH GROWTH N V | 10% Owner | Buy | 100.0 | +1,740,000 | 32.36% | ✗ | $9.6M |
| Jun 27, 2023 | Jun 28, 2023 | Epstein David M. | Officer | Sell | 41.3 | -25,000 | -2.60% | ✓ | $167.5K |
| Jun 16, 2023 | Jun 16, 2023 | Behbahani Ali | Director | Neutral | 55.0 | +5,655 | 0.16% | ✗ | - |
| Jun 16, 2023 | Jun 16, 2023 | DIXON WENDY L | Director | Neutral | 90.0 | +5,119 | 22.60% | ✗ | - |
| Jun 16, 2023 | Jun 16, 2023 | Velleca Mark A. | Director | Neutral | 90.0 | +8,929 | 27.57% | ✗ | - |
| May 16, 2023 | May 17, 2023 | Behbahani Ali | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| May 16, 2023 | May 17, 2023 | Mayweg Alexander | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| May 16, 2023 | May 17, 2023 | Shah Rajeev M. | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| May 16, 2023 | May 17, 2023 | Velleca Mark A. | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| May 16, 2023 | May 17, 2023 | Menzel Garry E | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| May 16, 2023 | May 17, 2023 | Kulkarni Samarth | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| May 16, 2023 | May 17, 2023 | DIXON WENDY L | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| May 16, 2023 | May 17, 2023 | Dhingra Kapil | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Mar 16, 2023 | Mar 20, 2023 | Behbahani Ali | Director | Neutral | 60.0 | +7,111 | 0.20% | ✗ | - |
| Mar 16, 2023 | Mar 20, 2023 | DIXON WENDY L | Director | Neutral | 90.0 | +6,437 | 39.70% | ✗ | - |
| Mar 16, 2023 | Mar 20, 2023 | Velleca Mark A. | Director | Neutral | 90.0 | +11,228 | 53.07% | ✗ | - |
| Feb 13, 2023 | Feb 15, 2023 | Yurasov Sergey | CHIEF MEDICAL OFFICER | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Feb 13, 2023 | Feb 15, 2023 | Ni Fang | Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Feb 13, 2023 | Feb 15, 2023 | Jones Erika | Officer | Neutral | 90.0 | +5,075 | 100.00% | ✗ | - |
| Feb 13, 2023 | Feb 15, 2023 | Epstein David M. | Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Feb 13, 2023 | Feb 15, 2023 | Buck Elizabeth | CHIEF SCIENTIFIC OFFICER | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Feb 13, 2023 | Feb 15, 2023 | Hatzis-Schoch Brent | Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Dec 21, 2022 | Dec 23, 2022 | Ni Fang | Officer | Buy | 95.0 | +56,363 | 81.65% | ✗ | $72.4K |
| Dec 16, 2022 | Dec 19, 2022 | Behbahani Ali | Director | Neutral | 60.0 | +7,917 | 0.23% | ✗ | - |
| Dec 16, 2022 | Dec 19, 2022 | Velleca Mark A. | Director | Neutral | 90.0 | +8,424 | 66.16% | ✗ | - |
| Dec 16, 2022 | Dec 19, 2022 | DIXON WENDY L | Director | Neutral | 90.0 | +7,167 | 79.20% | ✗ | - |
| Dec 16, 2022 | Dec 19, 2022 | INGRAM ROBERT ALEXANDER | Other | Neutral | 90.0 | +9,375 | 28.00% | ✗ | - |
| Oct 31, 2022 | Nov 2, 2022 | BIOTECH GROWTH N V | 10% Owner | Buy | 82.5 | +99,801 | 1.89% | ✗ | $224.9K |
| Oct 27, 2022 | Oct 31, 2022 | BIOTECH GROWTH N V | 10% Owner | Buy | 92.5 | +364,652 | 7.42% | ✗ | $736.2K |
| Oct 21, 2022 | Oct 25, 2022 | BIOTECH GROWTH N V | 10% Owner | Buy | 82.5 | +87,850 | 1.82% | ✗ | $132.8K |
| Oct 19, 2022 | Oct 21, 2022 | BIOTECH GROWTH N V | 10% Owner | Buy | 87.5 | +131,423 | 2.80% | ✗ | $179.1K |
| Sep 16, 2022 | Sep 19, 2022 | Behbahani Ali | Director | Neutral | 55.0 | +4,532 | 0.13% | ✗ | - |
| Sep 16, 2022 | Sep 19, 2022 | DIXON WENDY L | Director | Neutral | 90.0 | +4,103 | 82.96% | ✗ | - |
| Sep 16, 2022 | Sep 19, 2022 | Velleca Mark A. | Director | Neutral | 90.0 | +4,294 | 50.88% | ✗ | - |
| Sep 16, 2022 | Sep 19, 2022 | INGRAM ROBERT ALEXANDER | Director | Neutral | 90.0 | +6,584 | 24.48% | ✗ | - |
| Jun 17, 2022 | Jun 30, 2022 | DIXON WENDY L | Director | Neutral | 90.0 | +4,946 | 100.00% | ✗ | - |
| Jun 29, 2022 | Jun 30, 2022 | Ni Fang | Officer | Buy | 95.0 | +25,000 | 56.78% | ✗ | $61K |
| Jun 17, 2022 | Jun 17, 2022 | Behbahani Ali | Director | Neutral | 55.0 | +5,850 | 0.17% | ✗ | - |