RARE
Ultragenyx Pharmaceutical Inc.Company with tickers: RARE
CIK
1515673
CUSIP
90400D108
Shares Outstanding
98,317,221
Price
Holdings
Short Volume
Short Interest
Fails to Deliver
SEC Filings
Earnings Calls
Insider Trading
Congress Trades
Short Interest History
| Settlement Date | Current Position | Previous Position | Change | Days to Cover |
|---|---|---|---|---|
| 2026-03-13 | 9,932,072 | 9,597,141 | +334,931 | 4.78 |
| 2026-02-27 | 9,597,141 | 9,861,470 | -264,329 | 5.40 |
| 2026-02-13 | 9,861,470 | 9,095,903 | +765,567 | 3.92 |
| 2026-01-30 | 9,095,903 | 8,861,656 | +234,247 | 3.85 |
| 2026-01-15 | 8,861,656 | 8,017,399 | +844,257 | 2.72 |
| 2025-12-31 | 8,017,399 | 8,600,577 | -583,178 | 1.88 |
| 2025-12-15 | 8,600,577 | 8,871,538 | -270,961 | 5.66 |
| 2025-11-28 | 8,871,538 | 7,828,953 | +1,042,585 | 7.17 |
| 2025-11-14 | 7,828,953 | 7,144,800 | +684,153 | 5.33 |
| 2025-10-31 | 7,144,800 | 8,692,947 | -1,548,147 | 5.63 |
| 2025-10-15 | 8,692,947 | 7,654,589 | +1,038,358 | 6.16 |
| 2025-09-30 | 7,654,589 | 7,947,955 | -293,366 | 3.89 |
| 2025-09-15 | 7,947,955 | 8,320,958 | -373,003 | 5.15 |
| 2025-08-29 | 8,320,958 | 8,405,280 | -84,322 | 6.78 |
| 2025-08-15 | 8,405,280 | 7,638,230 | +767,050 | 4.85 |
| 2025-07-31 | 7,638,230 | 8,801,643 | -1,163,413 | 2.97 |
| 2025-07-15 | 8,801,643 | 6,820,252 | +1,981,391 | 2.49 |
| 2025-06-30 | 6,820,252 | 6,081,072 | +739,180 | 6.77 |
| 2025-06-13 | 6,081,072 | 5,546,745 | +534,327 | 5.12 |
| 2025-05-30 | 5,546,745 | 5,891,832 | -345,087 | 5.53 |
| 2025-05-15 | 5,891,832 | 5,535,742 | +356,090 | 5.70 |
| 2025-04-30 | 5,535,742 | 5,456,189 | +79,553 | 6.26 |
| 2025-04-15 | 5,456,189 | 4,525,008 | +931,181 | 4.84 |
| 2025-03-31 | 4,525,008 | 4,813,611 | -288,603 | 6.60 |