Insider tradingForm 4
Ultragenyx Pharmaceutical Inc. (RARE) Insider Trading
3 open-market trades reported since Sep 8, 2026: 0 purchases worth $0 and 3 sales worth $128K.
By insider
| Insider | Role | Buys | Bought | Sells | Sold |
|---|---|---|---|---|---|
| Howard Horn | CFO | 0 | $0 | 1 | $108K |
| Theodore Alan Huizenga | CAO | 0 | $0 | 2 | $20K |
All trades
| Filed | Insider | Type | Value | 3 mo. after |
|---|---|---|---|---|
| Oct 19 | Howard HornCFO | ▼ SELL | $108K | |
| Sep 15 | Theodore Alan HuizengaCAO | ▼ SELL10b5-1 | $17K | |
| Sep 8 | Theodore Alan HuizengaCAO | ▼ SELL | $2K |
Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings