| Filed | Form | Filer | Stake | Shares | Intent | |
|---|---|---|---|---|---|---|
| 2021-05-20 | SC | Invesco Ltd. | — | — | view → | |
| 2021-04-27 | SC | Invesco Ltd. | — | — | view → | |
| 2021-03-31 | SC | Invesco Ltd. | — | — | view → | |
| 2020-06-09 | SC | Invesco Ltd. | — | — | view → | |
| 2019-10-11 | SC | PDL BIOPHARMA, INC. | — | — | view → | |
| 2019-08-12 | SC | PDL BIOPHARMA, INC. | — | — | view → | |
| 2019-06-12 | SC | Invesco Ltd. | — | — | view → | |
| 2019-04-15 | SC | Invesco Ltd. | — | — | view → | |
| 2019-02-12 | SC | Invesco Ltd. | — | — | view → |
| Settlement | Short Interest | Days to Cover | % Δ vs prior |
|---|---|---|---|
| 2026-05-29 | 16,924 | 1.00 | +8362.0% |
| 2026-05-15 | 200 | 1.00 | -87.5% |
| 2026-04-30 | 1,595 | 1.00 | +697.5% |
| 2026-04-15 | 200 | 1.00 | -99.3% |
| 2026-03-31 | 29,455 | 1.00 | +321.0% |
| 2026-03-13 | 6,997 | 1.00 | +3398.5% |
| 2026-02-27 | 200 | 1.00 | -97.2% |
| 2026-02-13 | 7,034 | 1.00 | -2.7% |
| 2026-01-30 | 7,232 | 1.00 | -36.2% |
| 2026-01-15 | 11,335 | 1.00 | -50.4% |
| 2025-12-31 | 22,871 | 1.00 | -9.9% |
| 2025-12-15 | 25,387 | 1.00 | -0.3% |
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