InsiderTrades

Form 4 for RARE Ultragenyx Pharmaceutical Inc.

Accepted 2026-05-18 18:38:30 ET · period of report 2026-05-14 · accession 0001796536-26-000004 · 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
D 2026-05-18 18:38 2026-05-14 RARE Sanders Corazon (Corsee) D. Dir A - Grant $0.00 +7,751 23.1K +51% $0
D 2026-05-18 18:38 2026-05-14 RARE Sanders Corazon (Corsee) D. Dir A - Grant $0.00 +14.1K 14.1K New $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-05-14 A A 7,751 $0.00 23,095 D — — (F1) Award of Restricted Stock Units ("RSUs") under the Company's 2023 Incentive Plan. The RSUs shall vest in full on the earlier of (i) the Company's next Annual Meeting of Stockholders or (ii) May 14, 2027.
2 Derivative Stock Option (Right to Buy) 2026-05-14 A A 14,058 $0.00 14,058 D $25.80 · — to 2036-05-14 14,058 Common Stock (F2) The option shall vest in full on the earlier of (i) the Company's next Annual Meeting of Stockholders or (ii) May 14, 2027.