Returns measured from each activist filing's date_of_event, split + dividend adjusted via Yahoo Finance.
| Filed | Form | Filer | Stake | Shares | Intent | |
|---|---|---|---|---|---|---|
| 2026-04-22 | SCHEDULE 13D | RCM Eos PIPE HOLDINGS, LLC | 9.99% | 405,358 | UNCLEAR | view → |
| 2024-01-02 | SC | SABBY MANAGEMENT, LLC | — | — | view → | |
| 2019-07-17 | SC | Polaris Venture Partners V, L.P. | — | — | view → | |
| 2019-03-22 | SC | ARCH Venture Fund VII, L.P. | — | — | view → | |
| 2018-04-12 | SC | Polaris Venture Partners V, L.P. | — | — | view → | |
| 2018-04-12 | SC | Arch Venture Fund VII LP | — | — | view → | |
| 2018-01-05 | SC | Arch Venture Fund VII LP | — | — | view → |
| Settlement | Short Interest | Days to Cover | % Δ vs prior |
|---|---|---|---|
| 2026-05-29 | 24,832 | 1.38 | -26.8% |
| 2026-05-15 | 33,902 | 2.14 | -16.1% |
| 2026-04-30 | 40,413 | 1.00 | +106.2% |
| 2026-04-15 | 19,602 | 1.00 | +143.4% |
| 2026-03-31 | 8,053 | 1.00 | +221.5% |
| 2026-03-13 | 2,505 | 1.00 | -9.9% |
| 2026-02-27 | 2,779 | 1.00 | -35.3% |
| 2026-02-13 | 4,293 | 1.00 | +2.3% |
| 2026-01-30 | 4,195 | 1.00 | -40.4% |
| 2026-01-15 | 7,035 | 1.00 | -38.1% |
| 2025-12-31 | 11,368 | 1.00 | +164.4% |
| 2025-12-15 | 4,299 | 1.00 | -25.1% |
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