Ultragenyx Pharmaceutical Inc.RAREEarnings & Financial Report
Nasdaq · Health Care · Pharmaceutical Preparations
Ultragenyx Pharmaceutical Inc. is an American biopharmaceutical company involved in the research and development of novel products for treatment of rare and ultra-rare genetic diseases for which there are typically no approved treatments and high unmet medical need. The company works with multiple drug modalities including biologics, small molecule, gene therapies, and ASO and mRNAs in the disease categories of bone, endocrine, metabolic, muscle and CNS diseases.
Top Holders
| Holder | % Owned | Shares | Change | As of |
|---|---|---|---|---|
| The Vanguard Group | 10.56% | 8.7M | ▲ +0.44pp | 2024-02-13 |
| BlackRock, Inc. | 6.40% | 5.2M | — | 2024-01-29 |
| Wellington Management Group LLP | 5.38% | 4.4M | — | 2024-02-08 |
| Sands Capital Management, LLC | 5.00% | 4.1M | — | 2024-02-13 |
| T. ROWE PRICE ASSOCIATES, INC. | 4.20% | 3.5M | — | 2024-02-14 |
| RTW Investments, LP | 2.10% | 2.0M | ▼ -6.30pp | 2024-11-14 |
Insider Transactions
Net 90d: −$2.70M · buys $0 / sells $2.70MRange:
Action:
Role:
| Insider | Role | Action | ||||
|---|---|---|---|---|---|---|
| 2026-04-22 | Huizenga Theodore Alan | SVP, Chief Accounting Officer | Grant | 20.2K | $0.00 | $0 |
| 2026-04-16 | Parschauer Karah Herdman | EVP and Chief Legal Officer | Grant | 28.9K | $0.00 | $0 |
| 2026-04-16 | Eric Crombez | EVP and Chief Medical Officer | Grant | 34.7K | $0.00 | $0 |
| 2026-04-16 | Erik Harris | EVP & Chief Commercial Officer | Grant | 28.9K | $0.00 | $0 |
| 2026-04-16 | Pinion John Richard | See Remarks | Grant | 23.1K | $0.00 | $0 |
| 2026-04-16 | Huang Dennis Karl | See Remarks | Grant | 23.1K | $0.00 | $0 |
| 2026-04-16 | KAKKIS EMIL D | President & CEO | Grant | 76.7K | $0.00 | $0 |
| 2026-04-16 | Howard Horn | Chief Financial Officer | Grant | 34.7K | $0.00 | $0 |
| 2026-04-01 | Howard Horn | Chief Financial Officer | Sell (open market) | 4.7K | $20.97 | $98.2K |
| 2026-03-10 | Parschauer Karah Herdman | EVP and Chief Legal Officer | Sell (open market) | 3.5K | $22.67 | $79.5K |
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