Real time Form 13D and 13G transaction reports:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
- Shares have beem adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2026-08-14 08:15 am Purchase | 2026-06-30 | 13G | ULTRAGENYX PHARMACEUTICAL INC RARE | RTW INVESTMENTS LP | 7,796,895 7.900% | 5,828,893 (+296.18%) | Filing History |
| 2026-08-13 09:20 am Purchase | 2026-06-30 | 13G | ULTRAGENYX PHARMACEUTICAL INC RARE | AQR Capital Management, LLC | 6,560,809 6.660% | 6,560,809 (New Position) | Filing History |
| 2026-08-07 11:05 am Purchase | 2026-06-30 | 13G | ULTRAGENYX PHARMACEUTICAL INC RARE | STATE STREET CORPORATION STT | 6,158,766 6.300% | 1,137,325 (+22.65%) | Filing History |
| 2026-07-31 11:40 am Purchase | 2026-06-30 | 13G | ULTRAGENYX PHARMACEUTICAL INC RARE | VANGUARD PORTFOLIO MANAGEMENT LLC | 6,853,427 6.950% | 1,443,219 (+26.68%) | Filing History |
| 2026-07-31 10:46 am Purchase | 2026-06-30 | 13G | ULTRAGENYX PHARMACEUTICAL INC RARE | VANGUARD CAPITAL MANAGEMENT LLC | 5,058,419 5.130% | 5,058,419 (New Position) | Filing History |
| 2026-07-30 11:18 am Purchase | 2026-06-30 | 13G | ULTRAGENYX PHARMACEUTICAL INC RARE | BlackRock Inc. BLK | 8,141,384 8.300% | 3,320,453 (+68.88%) | Filing History |
| 2026-05-12 12:12 pm Purchase | 2026-03-31 | 13G | ULTRAGENYX PHARMACEUTICAL INC RARE | STATE STREET CORPORATION STT | 5,021,441 5.100% | 5,021,441 (New Position) | Filing History |
| 2026-04-29 3:48 pm Purchase | 2026-03-31 | 13G | ULTRAGENYX PHARMACEUTICAL INC RARE | VANGUARD PORTFOLIO MANAGEMENT LLC | 5,410,208 5.500% | 5,410,208 (New Position) | Filing History |
| 2026-03-27 1:54 pm Sale | 2026-03-13 | 13G | ULTRAGENYX PHARMACEUTICAL INC RARE | VANGUARD GROUP INC | 0 0.000% | -8,673,432 (Position Closed) | Filing History |
| 2026-02-05 1:40 pm Sale | 2025-12-31 | 13G | ULTRAGENYX PHARMACEUTICAL INC RARE | FMR LLC | 3,347,890 3.500% | -4,617,047 (-57.97%) | Filing History |
| 2025-11-05 11:49 am Purchase | 2025-09-30 | 13G | ULTRAGENYX PHARMACEUTICAL INC RARE | FMR LLC | 7,964,937 8.300% | 6,140,372 (+336.54%) | Filing History |
| 2025-04-24 09:12 am Sale | 2025-03-31 | 13G | ULTRAGENYX PHARMACEUTICAL INC RARE | BlackRock Inc. BLK | 4,820,931 5.100% | -417,469 (-7.97%) | Filing History |
| 2025-02-12 11:42 am Purchase | 2024-12-31 | 13G | ULTRAGENYX PHARMACEUTICAL INC RARE | SANDS CAPITAL MANAGEMENT LLC | 4,298,003 4.700% | 179,995 (+4.37%) | Filing History |
| 2025-02-10 10:25 am Sale | 2024-12-31 | 13G | ULTRAGENYX PHARMACEUTICAL INC RARE | WELLINGTON MANAGEMENT GROUP LLP | 2,457,543 2.700% | -1,957,486 (-44.34%) | Filing History |
| 2024-11-14 06:42 am Sale | 2024-09-30 | 13G | ULTRAGENYX PHARMACEUTICAL INC RARE | RTW INVESTMENTS LP | 1,968,002 2.100% | -4,919,084 (-71.42%) | Filing History |
| 2024-02-14 10:03 am Sale | 2023-12-31 | 13G | ULTRAGENYX PHARMACEUTICAL INC RARE | T. Rowe Price Associates, Inc. | 3,453,460 4.200% | -642,928 (-15.69%) | Filing History |
| 2024-02-14 07:46 am Purchase | 2023-12-31 | 13G | ULTRAGENYX PHARMACEUTICAL INC RARE | RTW INVESTMENTS LP | 6,887,086 8.400% | 2,920,171 (+73.61%) | Filing History |
| 2024-02-13 5:16 pm Purchase | 2023-12-29 | 13G | ULTRAGENYX PHARMACEUTICAL INC RARE | VANGUARD GROUP INC | 8,673,432 10.560% | 1,436,909 (+19.86%) | Filing History |
| 2024-02-13 3:41 pm Purchase | 2023-12-31 | 13G | ULTRAGENYX PHARMACEUTICAL INC RARE | SANDS CAPITAL MANAGEMENT LLC | 4,118,008 5.000% | 4,118,008 (New Position) | Filing History |
| 2024-02-08 10:18 am Sale | 2023-12-29 | 13G | ULTRAGENYX PHARMACEUTICAL INC RARE | WELLINGTON MANAGEMENT GROUP LLP | 4,415,029 5.380% | -787,655 (-15.14%) | Filing History |