Form 4 Tracker
Ultragenyx Pharmaceutical Inc.
RARE

34 insider filings · Latest: Aug 3, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Dec 30, 2024Dec 30 9:32 PMKAKKIS EMIL D
Proposed Sale
11,727$42.23$495.3K

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Dec 10, 2024Dec 10 9:12 PMKAKKIS EMIL D
Proposed Sale
8,273$50.00$413.6K

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Sep 3, 2024KAKKIS EMIL D
Proposed Sale
20,000$55.85$1.1M

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
May 14, 2026May 18 10:50 PMMatthew K FustDirector
Grant/Award
14,058$25.8014,058(D)

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May 14, 2026May 18 10:41 PMShehnaaz SulimanDirector
Grant/Award
14,058$25.8014,058(D)

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May 14, 2026May 18 10:39 PMAmrit RayDirector
Grant/Award
14,058$25.8014,058(D)

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May 14, 2026May 18 10:38 PMCorazon (Corsee) D. SandersDirector
Grant/Award
14,058$25.8014,058(D)

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May 14, 2026May 18 10:35 PMMichael NarachiDirector
Grant/Award
14,058$25.8014,058(D)

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May 14, 2026May 18 10:23 PMDaniel G WelchDirector
Grant/Award
14,058$25.8014,058(D)

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May 14, 2026May 18 10:21 PMDeborah DunsireDirector
Grant/Award
14,058$25.8014,058(D)

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Apr 22, 2026Apr 24 8:39 PMTheodore Alan HuizengaSVP, Chief Accounting Officer
Grant/Award
7,348$24.617,348(D)

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Apr 16, 2026Apr 20 9:19 PMEmil D KakkisDirector, President & CEO
Grant/Award
132,693$24.52132,693(D)

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Apr 16, 2026Apr 20 9:17 PMDennis Karl HuangEVP, Chief Technical Operations Officer
Grant/Award
79,936$24.5279,936(D)

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Apr 16, 2026Apr 20 9:16 PMJohn Richard PinionEVP, Chief Quality Operations Officer
Grant/Award
79,936$24.5279,936(D)

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Apr 16, 2026Apr 20 9:15 PMKarah Herdman ParschauerEVP and Chief Legal Officer
Grant/Award
49,960$24.5249,960(D)

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Apr 16, 2026Apr 20 9:13 PMErik HarrisEVP & Chief Commercial Officer
Grant/Award
49,960$24.5249,960(D)

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Apr 16, 2026Apr 20 9:11 PMEric CrombezEVP and Chief Medical Officer
Grant/Award
59,952$24.5259,952(D)

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Apr 16, 2026Apr 20 9:09 PMHoward HornChief Financial Officer
Grant/Award
59,952$24.5259,952(D)

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