March 2, 2026 · Form 4 insider transaction
Huizenga Theodore Alan sold 148 shares of Ultragenyx Pharmaceutical Inc. at $23.39 per share, a transaction worth $3.5K. The trade was recorded as shares withheld for taxes and disclosed on an SEC Form 4, filed 1 day after the transaction.
Represents shares surrendered to the Issuer by the Reporting Person to pay required tax withholdings due to the vesting of RSUs.