Huizenga Theodore Alan 4
4 · Ultragenyx Pharmaceutical Inc. · Filed Mar 3, 2026
Insider Transaction Report
Form 4
Huizenga Theodore Alan
SVP, Chief Accounting Officer
Transactions
- Tax Payment
Common Stock
[F1]2026-03-02$23.39/sh−148$3,462→ 50,302 total - Sale
Common Stock
[F2][F3][F4]2026-03-02$22.80/sh−1,632$37,210→ 48,670 total
Footnotes (4)
- [F1]Represents shares surrendered to the Issuer by the Reporting Person to pay required tax withholdings due to the vesting of RSUs.
- [F2]Represents shares sold to pay required tax withholdings due to the vesting of RSUs.
- [F3]The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.54 to $23.11 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range
- [F4]Includes previously reported shares of common stock underlying RSUs granted to the Reporting Person, which are subject to certain vesting conditions.
Signature
/s/ Karah Parschauer, attorney-in-fact|2026-03-03