InsiderTrades

Form 4 for RARE Ultragenyx Pharmaceutical Inc.

Accepted 2025-12-30 00:00:00 ET · period of report 2025-12-29 · accession 0001193125-25-336619 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
2025-12-30 2025-12-29 RARE Huizenga Theodore Alan SVP, CAO S - Sale $34.38 -85 50.5K -0.2% -$2,922

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2025-12-29 S D 85 $34.38 50,450 D — — (F2) Includes 293 shares acquired under the Company's A&R 2014 Employee Stock Purchase Plan on October 31, 2025. (F3) Includes previously reported shares of common stock underlying RSUs granted to the Reporting Person, which are subject to certain vesting conditions.