| Filed | Form | Filer | Stake | Shares | Intent | |
|---|---|---|---|---|---|---|
| 2018-02-28 | SC | HealthCor Management, L.P. | — | — | view → | |
| 2018-02-14 | SC | SMITH ROBERT J | — | — | view → | |
| 2018-01-03 | SC | HealthCor Management, L.P. | — | — | view → |
| Settlement | Short Interest | Days to Cover | % Δ vs prior |
|---|---|---|---|
| 2026-03-31 | 204,832 | 6.92 | -4.2% |
| 2026-03-13 | 213,832 | 8.58 | +4.7% |
| 2026-02-27 | 204,224 | 1.86 | -19.5% |
| 2026-02-13 | 253,607 | 7.90 | -1.6% |
| 2026-01-30 | 257,792 | 5.14 | +17.4% |
| 2026-01-15 | 219,629 | 1.83 | +6.3% |
| 2025-12-31 | 206,597 | 1.16 | -25.2% |
| 2025-12-15 | 276,194 | 1.67 | +35.1% |
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