Ultragenyx Pharmaceutical Inc. (RARE)
$25.68-$0.58 (-2.21%) Today
Howard Horn - OfficerHoward Horn - OfficerKarah Herdman Parschauer - OfficerHoward Horn - OfficerUltragenyx Pharmaceutical Inc is a USA-based biopharmaceutical company. The company identifies, acquires, develops, and commercializes novel products for the treatment of serious, rare, and ultra-rare diseases, with a focus on debilitating genetic conditions. Its medicine portfolio includes Crysvita, Dojolvi, and Mepsevii. Crysvita is indicated for the treatment of X-linked hypophosphatemia (XLH) in adult and pediatric patients aged one year and older. Mepsevii is indicated for pediatric and adult patients for the treatment of Mucopolysaccharidosis VII. The company operates across North America, Latin America, Europe, the Middle East and Africa, and Asia-Pacific, with the majority of its revenue generated from North America.
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 5 | 15,193 | $417K |
46 Form 4 filings on record, the earliest from Oct 11, 2024, newest first. Filing history page 2 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Howard Horn - Officer | Open-market sale | Common Stock | 5,290 | $22.80 | $121K | |
| Howard Horn - Officer | Open-market sale | Common Stock | 3,119 | $22.54 | $70K | |
| Howard Horn - Officer | Open-market sale | Common Stock | 1,635 | $22.40 | $37K | |
| Howard Horn - Officer | Grant or award | Common Stock | 6,143 | $0.00 | - | |
| Eric Crombez - Officer | Grant or award | Common Stock | 11,643 | $0.00 | - | |
| Eric Crombez - Officer | Open-market sale | Common Stock | 7,029 | $22.80 | $160K | |
| Dennis Karl Huang - Officer | Grant or award | Common Stock | 11,137 | $0.00 | - | |
| Dennis Karl Huang - Officer | Tax withholding / forfeiture | Common Stock | 999 | $23.39 | $23K | |
| Howard Horn - Officer | Open-market sale | Common Stock | 3,061 | $23.56 | $72K | |
| Howard Horn - Officer | Open-market sale | Common Stock | 3,150 | $22.84 | $72K | |
 Theodore Alan Huizenga - Officer | Open-market sale | Common Stock | 85 | $34.38 | $3K | |
| Howard Horn - Officer | Open-market sale | Common Stock | 3,081 | $36.38 | $112K | |
| Howard Horn - Officer | Open-market sale | Common Stock | 7,942 | $31.51 | $250K | |
| Theodore Alan Huizenga - Officer | Open-market sale | Common Stock | 64 | $29.17 | $2K | |
| Karah Herdman Parschauer - Officer | Open-market sale | Common Stock | 2,450 | $31.17 | $76K | |
| Theodore Alan Huizenga - Officer | Open-market sale | Common Stock | 84 | $31.39 | $3K | |
| Daniel G. Welch | Grant or award | Common Stock | 5,740 | $0.00 | - | |
| Daniel G. Welch | Grant or award | Stock Option (Right to Buy) | 10,787 | $0.00 | - | |
| Emil D. Kakkis - Officer | Open-market sale | Common Stock | 11,727 | $42.23 | $495K | |
| Theodore Alan Huizenga - Officer | Gift | Common Stock | 648 | $0.00 | - | |
| Emil D. Kakkis - Officer | Gift | Common Stock | 20,000 | $0.00 | - | |
| Emil D. Kakkis - Officer | Open-market sale | Common Stock | 8,273 | $50.00 | $414K | |
| Howard Horn - Officer | Open-market sale | Common Stock | 7,465 | $52.76 | $394K |
This is as far as the anonymous view goes. Create a free account for all 46 RARE filings on record.
A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| HOWARD HORN | Officer | 4,696 | $117K | View on EDGAR | |
| - | - | - | - | View on EDGAR | |
| - | - | - | - | View on EDGAR |
Ultragenyx Pharmaceutical Inc. (RARE) had 5 insider filings in the last 90 days, with the most recent on 2026-08-04. The full record for RARE runs to 46 Form 4 filings, the earliest from 2024-10-11. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
No insider purchases of RARE were filed in the last 90 days.
5 insider sales of RARE were filed in the last 90 days, totaling $417K.
This page tracks RARE Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
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