2025Q4
| Insider | Role (last 12 mo) | Shares held | Filed at |
|---|---|---|---|
| Perlroth Victor | CEO | 406,000 | Aug 7, 2024 |
| Ehrlich Jason | Officer | 207,500 | Jun 27, 2023 |
| Liang Hong | SVP, Discovery Medicine | 130,166 | Apr 6, 2020 |
| Baker Bros. Advisors Lp | Director | 40,000 | Jul 2, 2024 |
| 667, L.P. | Director | 40,000 | Jul 2, 2024 |
| Exec date | Filing date | Insider | Role | Signal | Confidence | Shares | % of shares | Under plan? | Amount (USD) |
|---|---|---|---|---|---|---|---|---|---|
| Dec 26, 2025 | Feb 17, 2026 | PERLROTH VICTOR | CEO | Neutral | 37.5 | -12,500 | -0.59% | ✗ | - |
| Dec 18, 2025 | Dec 19, 2025 | BAKER BROS. ADVISORS LP | Director | Buy | 100.0 | +2,608,696 | 15.07% | ✗ | $60M |
| Jul 4, 2025 | Jul 8, 2025 | BORGESON JOHN A. | Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jul 4, 2025 | Jul 8, 2025 | PERLROTH VICTOR | CEO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 30, 2025 | Jul 2, 2025 | BAKER BROS. ADVISORS LP | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 30, 2025 | Jul 2, 2025 | PROFUSEK ROBERT | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 30, 2025 | Jul 2, 2025 | Yang Taiyin | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 30, 2025 | Jul 2, 2025 | Levy Richard S | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 30, 2025 | Jul 2, 2025 | Bancroft Charles A | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 30, 2025 | Jul 2, 2025 | Dahiyat Bassil I | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 15, 2025 | Jun 17, 2025 | BORGESON JOHN A. | Officer | Sell | 53.8 | -723 | -0.39% | ✓ | $2.6K |
| Aug 5, 2024 | Aug 7, 2024 | BORGESON JOHN A. | Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Aug 5, 2024 | Aug 7, 2024 | PERLROTH VICTOR | CEO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 28, 2024 | Jul 2, 2024 | BAKER BROS. ADVISORS LP | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 28, 2024 | Jul 1, 2024 | Yang Taiyin | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 28, 2024 | Jul 1, 2024 | PROFUSEK ROBERT | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 28, 2024 | Jul 1, 2024 | Levy Richard S | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 28, 2024 | Jul 1, 2024 | Dahiyat Bassil I | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 28, 2024 | Jul 1, 2024 | Bancroft Charles A | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 15, 2024 | Jun 18, 2024 | BORGESON JOHN A. | Officer | Sell | 50.0 | -2,874 | -1.55% | ✓ | $7.9K |
| Jun 11, 2024 | Jun 13, 2024 | BORGESON JOHN A. | Officer | Sell | 52.5 | -1,558 | -0.86% | ✓ | $4.5K |
| Jun 30, 2023 | Jul 5, 2023 | BAKER BROS. ADVISORS LP | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 30, 2023 | Jul 3, 2023 | Yang Taiyin | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 30, 2023 | Jul 3, 2023 | PROFUSEK ROBERT | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 30, 2023 | Jul 3, 2023 | Levy Richard S | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 30, 2023 | Jul 3, 2023 | Dahiyat Bassil I | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 30, 2023 | Jul 3, 2023 | Bancroft Charles A | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 24, 2023 | Jun 27, 2023 | EHRLICH JASON | Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 24, 2023 | Jun 27, 2023 | BORGESON JOHN A. | Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 24, 2023 | Jun 27, 2023 | PERLROTH VICTOR | CEO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 14, 2023 | Jun 16, 2023 | EHRLICH JASON | Officer | Sell | 45.0 | -3,390 | -2.73% | ✓ | $31.5K |
| Jun 14, 2023 | Jun 16, 2023 | BORGESON JOHN A. | Officer | Sell | 48.8 | -4,197 | -1.17% | ✓ | $39K |
| Jun 11, 2023 | Jun 13, 2023 | EHRLICH JASON | Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 11, 2023 | Jun 13, 2023 | BORGESON JOHN A. | Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Dec 30, 2022 | Feb 14, 2023 | PERLROTH VICTOR | CEO | Neutral | 27.5 | -60,000 | -1.71% | ✗ | - |
| Jul 6, 2022 | Jul 8, 2022 | EHRLICH JASON | Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jul 6, 2022 | Jul 8, 2022 | BORGESON JOHN A. | Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jul 6, 2022 | Jul 8, 2022 | PERLROTH VICTOR | CEO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 30, 2022 | Jul 5, 2022 | Yang Taiyin | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 30, 2022 | Jul 5, 2022 | PROFUSEK ROBERT | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 30, 2022 | Jul 5, 2022 | Levy Richard S | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 30, 2022 | Jul 5, 2022 | Dahiyat Bassil I | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 30, 2022 | Jul 5, 2022 | Bancroft Charles A | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 30, 2022 | Jul 5, 2022 | BAKER BROS. ADVISORS LP | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 15, 2022 | Jun 17, 2022 | EHRLICH JASON | Officer | Sell | 36.3 | -3,487 | -5.77% | ✓ | $24.7K |
| Jun 15, 2022 | Jun 17, 2022 | BORGESON JOHN A. | Officer | Sell | 45.0 | -4,343 | -2.44% | ✓ | $30.8K |
| Jun 11, 2022 | Jun 14, 2022 | EHRLICH JASON | Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 11, 2022 | Jun 14, 2022 | BORGESON JOHN A. | Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 2, 2022 | Jun 6, 2022 | BAKER BROS. ADVISORS LP | Director | Buy | 77.5 | +572,349 | 0.56% | ✗ | $4.4M |
| May 25, 2022 | May 27, 2022 | BAKER BROS. ADVISORS LP | Director | Buy | 70.0 | +350,406 | 0.27% | ✗ | $2.4M |
| May 16, 2022 | May 18, 2022 | BAKER BROS. ADVISORS LP | Director | Buy | 70.0 | +456,690 | 0.40% | ✗ | $2.7M |
| Feb 24, 2022 | Feb 28, 2022 | PERLROTH VICTOR | CEO | Sell | 15.0 | -1,340,000 | -38.20% | ✗ | $12.3M |
| Feb 16, 2022 | Feb 18, 2022 | EHRLICH JASON | Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Feb 16, 2022 | Feb 18, 2022 | BORGESON JOHN A. | Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Feb 16, 2022 | Feb 18, 2022 | PERLROTH VICTOR | CEO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Feb 15, 2022 | Feb 17, 2022 | BAKER BROS. ADVISORS LP | Director | Buy | 80.0 | +400,965 | 0.51% | ✗ | $21.8M |
| Jan 27, 2022 | Jan 31, 2022 | BAKER BROS. ADVISORS LP | Director | Buy | 72.5 | +347,665 | 0.33% | ✗ | $18.1M |
| Jan 21, 2022 | Jan 25, 2022 | BAKER BROS. ADVISORS LP | Director | Buy | 95.0 | +501,111 | 3.70% | ✗ | $28.8M |
| Jan 20, 2022 | Jan 24, 2022 | EHRLICH JASON | Officer | Sell | 22.5 | -6,950 | -11.88% | ✓ | $447.5K |
| Dec 20, 2021 | Dec 22, 2021 | EHRLICH JASON | Officer | Sell | 22.5 | -6,950 | -11.88% | ✓ | $608.8K |
| Nov 22, 2021 | Nov 24, 2021 | EHRLICH JASON | Officer | Sell | 22.5 | -6,950 | -11.88% | ✓ | $689.1K |
| Nov 10, 2021 | Nov 12, 2021 | BORGESON JOHN A. | Officer | Sell | 47.5 | -876 | -0.51% | ✓ | $101.1K |
| Oct 20, 2021 | Oct 22, 2021 | EHRLICH JASON | Officer | Sell | 22.5 | -6,950 | -11.88% | ✓ | $776.8K |
| Sep 29, 2021 | Oct 1, 2021 | BAKER BROS. ADVISORS LP | Director | Buy | 71.3 | +86,916 | 0.31% | ✗ | $8.3M |
| Sep 20, 2021 | Sep 22, 2021 | EHRLICH JASON | Officer | Sell | 22.5 | -6,950 | -11.88% | ✓ | $694.2K |
| Sep 15, 2021 | Sep 17, 2021 | BAKER BROS. ADVISORS LP | Director | Buy | 70.0 | +31,838 | 0.24% | ✗ | $3M |
| Sep 7, 2021 | Sep 9, 2021 | BAKER BROS. ADVISORS LP | Director | Buy | 71.3 | +57,501 | 0.44% | ✗ | $5.4M |
| Aug 20, 2021 | Aug 24, 2021 | EHRLICH JASON | Officer | Sell | 22.5 | -6,950 | -11.88% | ✓ | $635.5K |
| Aug 17, 2021 | Aug 19, 2021 | BAKER BROS. ADVISORS LP | Director | Buy | 80.0 | +114,396 | 0.87% | ✗ | $10M |
| Aug 11, 2021 | Aug 13, 2021 | BAKER BROS. ADVISORS LP | Director | Buy | 78.8 | +102,773 | 0.79% | ✗ | $9M |
| Aug 12, 2021 | Aug 13, 2021 | EHRLICH JASON | Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Aug 12, 2021 | Aug 13, 2021 | BORGESON JOHN A. | Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Aug 12, 2021 | Aug 13, 2021 | PERLROTH VICTOR | CEO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jul 20, 2021 | Jul 22, 2021 | EHRLICH JASON | Officer | Sell | 22.5 | -6,950 | -11.55% | ✓ | $599.6K |
| Jun 30, 2021 | Jul 2, 2021 | Yang Taiyin | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 30, 2021 | Jul 2, 2021 | PROFUSEK ROBERT | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 30, 2021 | Jul 2, 2021 | Levy Richard S | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 30, 2021 | Jul 2, 2021 | Dahiyat Bassil I | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 30, 2021 | Jul 2, 2021 | Bancroft Charles A | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 28, 2021 | Jun 30, 2021 | BAKER BROS. ADVISORS LP | Director | Buy | 90.0 | +257,929 | 2.03% | ✗ | $23.7M |
| Jun 21, 2021 | Jun 23, 2021 | EHRLICH JASON | Officer | Sell | 22.5 | -6,950 | -10.35% | ✓ | $590.1K |
| Jun 15, 2021 | Jun 17, 2021 | EHRLICH JASON | Officer | Sell | 41.3 | -1,454 | -2.12% | ✓ | $117.6K |
| Jun 15, 2021 | Jun 17, 2021 | BORGESON JOHN A. | Officer | Sell | 47.5 | -1,290 | -0.75% | ✓ | $104.4K |
| Jun 11, 2021 | Jun 15, 2021 | EHRLICH JASON | Officer | Sell | 42.5 | -1,147 | -1.73% | ✗ | $97.2K |
| Jun 11, 2021 | Jun 15, 2021 | BORGESON JOHN A. | Officer | Sell | 45.0 | -1,037 | -0.61% | ✗ | $87.9K |
| Jun 11, 2021 | Jun 15, 2021 | PERLROTH VICTOR | CEO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| May 20, 2021 | May 24, 2021 | EHRLICH JASON | Officer | Sell | 26.3 | -6,950 | -9.91% | ✓ | $563.9K |
| May 12, 2021 | May 14, 2021 | EHRLICH JASON | Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Apr 20, 2021 | Apr 22, 2021 | EHRLICH JASON | Officer | Sell | 26.3 | -6,950 | -9.96% | ✓ | $773.2K |
| Mar 22, 2021 | Mar 24, 2021 | EHRLICH JASON | Officer | Sell | 26.3 | -6,950 | -9.96% | ✓ | $913.9K |
| Mar 10, 2021 | Mar 12, 2021 | BORGESON JOHN A. | Officer | Sell | 38.8 | -5,000 | -2.93% | ✓ | $650.4K |
| Mar 3, 2021 | Mar 5, 2021 | EHRLICH JASON | Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Feb 22, 2021 | Feb 24, 2021 | EHRLICH JASON | Officer | Sell | 22.5 | -6,950 | -12.13% | ✓ | $874.4K |
| Nov 19, 2020 | Feb 16, 2021 | PERLROTH VICTOR | CEO | Neutral | 52.5 | -3,500 | -0.10% | ✗ | - |
| Jan 20, 2021 | Jan 22, 2021 | EHRLICH JASON | Officer | Sell | 27.5 | -26,950 | -5.29% | ✓ | $4.4M |
| Dec 21, 2020 | Dec 23, 2020 | EHRLICH JASON | Officer | Sell | 20.0 | -6,950 | -13.96% | ✓ | $1M |
| Nov 20, 2020 | Nov 24, 2020 | EHRLICH JASON | Officer | Sell | 22.5 | -6,950 | -13.96% | ✓ | $964.6K |
| Nov 20, 2020 | Nov 24, 2020 | BAKER BROS. ADVISORS LP | Director | Buy | 100.0 | +1,527,777 | 12.37% | ✗ | $165M |
| Oct 27, 2020 | Oct 29, 2020 | EHRLICH JASON | Officer | Sell | 22.5 | -7,500 | -14.90% | ✓ | $750K |
| Oct 23, 2020 | Oct 27, 2020 | EHRLICH JASON | Officer | Sell | 22.5 | -7,500 | -14.90% | ✓ | $646.9K |