RARE US Equity
Ultragenyx Pharmaceutical Inc.Health Care · Pharmaceutical Preparations · CIK 1515673 · FY ends Dec 31$26.24
+0.75 (+2.94%)
USD · as of 2026-08-19 · marketstack
Short interest· FINRA consolidated · settlement 2026-07-31
6 settlement cycles| Shares short | 15.0M |
| % of shares out | 15.2% |
| Days to cover | 8.3 |
| Δ vs 2026-07-15 | +11.4% |
bars = shares short · line = days to cover (own scale)
| Settlement | Shares short | Δ vs prior | Avg daily volume | Days to cover |
|---|
| 2026-07-31 | 14,963,396 | +11.4% | 1,807,137 | 8.3 |
| 2026-07-15 | 13,435,087 | -17.2% | 1,937,159 | 6.9 |
| 2026-06-30 | 16,217,153 | +13.3% | 4,501,008 | 3.6 |
| 2026-06-15 | 14,312,759 | -2.7% | 1,617,040 | 8.8 |
| 2026-05-29 | 14,703,432 | +5.2% | 1,495,515 | 9.8 |
| 2026-05-15 | 13,976,318 | +2.3% | 1,699,704 | 8.2 |
FINRA Rule 4560 · twice monthly, published ~a week later.
Output of a disclosed model — assumptions may be wrong. Research, not investment advice. See the Disclaimer.
