Returns measured from each activist filing's date_of_event, split + dividend adjusted via Yahoo Finance.
| Filed | Form | Filer | Stake | Shares | Intent | |
|---|---|---|---|---|---|---|
| 2026-07-02 | SCHEDULE 13D/A | RA CAPITAL MANAGEMENT, L.P. | 4.10% | 1,985,541 | view → | |
| 2026-06-26 | SCHEDULE 13D/A | RA CAPITAL MANAGEMENT, L.P. | 6.00% | 2,915,742 | view → | |
| 2026-06-22 | SCHEDULE 13D/A | RA CAPITAL MANAGEMENT, L.P. | — | 3,654,307 | view → | |
| 2026-06-15 | SCHEDULE 13D/A | RA CAPITAL MANAGEMENT, L.P. | — | 5,138,703 | view → | |
| 2026-05-14 | SCHEDULE 13D/A | RA CAPITAL MANAGEMENT, L.P. | — | 6,116,140 | view → | |
| 2025-12-29 | SCHEDULE | MPM BioVentures 2014, L.P. | 8.20% | 3,977,612 | view → | |
| 2025-05-14 | SCHEDULE | RA CAPITAL MANAGEMENT, L.P. | 15.00% | 6,746,807 | view → | |
| 2022-08-12 | SC | RA CAPITAL MANAGEMENT, L.P. | — | — | view → | |
| 2021-06-16 | SC | RA CAPITAL MANAGEMENT, L.P. | — | — | view → |
| Settlement | Short Interest | Days to Cover | % Δ vs prior |
|---|---|---|---|
| 2026-07-15 | 934,340 | 1.03 | +10.3% |
| 2026-06-30 | 847,096 | 1.00 | -12.2% |
| 2026-06-15 | 964,624 | 1.95 | +1.6% |
| 2026-05-29 | 949,598 | 1.56 | +42.2% |
| 2026-05-15 | 667,626 | 1.00 | -8.2% |
| 2026-04-30 | 726,859 | 2.37 | -7.7% |
| 2026-04-15 | 787,448 | 2.12 | -43.1% |
| 2026-03-31 | 1,383,049 | 5.10 | -1.4% |
| 2026-03-13 | 1,402,079 | 2.82 | -32.3% |
| 2026-02-27 | 2,069,809 | 5.02 | +1.0% |
| 2026-02-13 | 2,050,094 | 6.22 | -15.3% |
| 2026-01-30 | 2,419,408 | 4.63 | +5.8% |
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