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Active cluster sell — 3 distinct insiders, $291.9K, window ends Oct 15, 2026.
Figures computed from official regulatory filings — .
Analysttarget 26.25 USD (+64%) · consensus 3.86/5 · 10 buy · 11 hold · 0 sell
Ownershipinsiders 3.44% · institutions 112.73% · short 21.4% of float
In USD · as of Oct 19, 2026
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Ultragenyx Pharmaceutical Inc., a biopharmaceutical company, focuses on the identification, acquisition, development, and commercialization of novel products for the treatment of rare and ultra-rare genetic diseases in North America, Latin America, Europe, the Middle East, Africa, and the Asia-Pacific. Its biologic products include Crysvita (burosumab), an antibody targeting fibroblast growth factor 23 for the treatment of X-linked hypophosphatemia, as well as tumor-induced osteomalacia; Mepsevii, an enzyme replacement therapy for the treatment of children and adults with Mucopolysaccharidosis VII; Dojolvi for the treatment of long-chain fatty acid oxidation disorders; and Evkeeza (evinacumab) for the treatment of homozygous familial hypercholesterolemia. The company's products candidates that are in Phase 3 clinical trials include UX143, a human monoclonal antibody for the treatment of osteogenesis imperfecta; UX111, an AAV9 gene therapy product candidate for the treatment of patients with Sanfilippo syndrome type A, or MPS IIIA, a rare lysosomal storage disease; DTX401, an adeno-associated virus 8 (AAV8) gene therapy clinical candidate for the treatment of patients with glycogen storage disease type Ia; DTX301, an AAV8 gene therapy for the treatment of patients with ornithine transcarbamylase; and GTX-102, an antisense oligonucleotide for the treatment of Angelman syndrome. It also develops UX701, an adeno-associated AAV9 gene therapy which is in Phase 2 clinical trial for the treatment of Wilson liver disease. The company has collaboration and license agreement with Kyowa Kirin Co., Ltd.; Saint Louis University; Baylor Research Institute; REGENXBIO Inc.; GeneTx; Mereo; University of Pennsylvania; Regeneron; and Abeona. Ultragenyx Pharmaceutical Inc. was incorporated in 2010 and is headquartered in Novato, California.
Market information source · Oct 19, 2026
SEC company identity · Oct 19, 2026
Open-market timeline · full history
8 buys334 sells— close pricebar = usd volume, √ scaleclick a period to filter the table
| Insider | Type | Value · USD | Signals | Details | |
|---|---|---|---|---|---|
| Horn Howard | Sell | $107.9K | SEC | ||
| Huizenga Theodore Alan |
| Sell |
| $17.4K |
| SEC |
| Huizenga Theodore Alan | Sell | $2.3K | SEC |
| Horn Howard | Sell | $117K | SEC |
| Parschauer Karah Herdman | Sell | $47.3K | SEC |
| Horn Howard | Sell | $155.6K | SEC |
| Parschauer Karah Herdman | Sell | $46.8K | SEC |
| Sanders Corazon (Corsee) D. | Sell | $50.1K | SEC |
| Horn Howard | Sell | $110.6K | SEC |
| Sanders Corazon (Corsee) D. | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| WELCH DANIEL G | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| SULIMAN SHEHNAAZ | Sell | $144.2K | SEC |
| SULIMAN SHEHNAAZ | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Ray Amrit | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| NARACHI MICHAEL | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| WELCH DANIEL G | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Fust Matthew K | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| NARACHI MICHAEL | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Fust Matthew K | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Ray Amrit | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Sanders Corazon (Corsee) D. | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| SULIMAN SHEHNAAZ | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Dunsire Deborah | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Dunsire Deborah | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Crombez Eric | Sell | $8.6K | SEC |