Form 4 Tracker
Ultragenyx Pharmaceutical Inc.
RARE

31 insider filings · Latest: Jun 15, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Mar 2, 2026Mar 4 12:06 AMEmil D KakkisDirector, President & CEO
Sale
54,404$22.80$1.2M658,994(D)

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Mar 2, 2026Mar 3 11:51 PMKarah Herdman ParschauerEVP and Chief Legal Officer
Sale
8,135$22.80$185.5K76,346(D)

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Mar 2, 2026Mar 3 11:51 PMTheodore Alan HuizengaSVP, Chief Accounting Officer
Sale
1,632$22.80$37.2K48,670(D)

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Mar 3, 2026Mar 3 11:50 PMHoward HornChief Financial Officer
Sale
1,635$22.40$36.6K85,034(D)

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Mar 2, 2026Mar 3 11:50 PMHoward HornChief Financial Officer
Sale
8,409$22.70$190.9K86,669(D)

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Mar 2, 2026Mar 3 11:49 PMEric CrombezEVP and Chief Medical Officer
Sale
7,029$22.80$160.3K76,301(D)

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Mar 3, 2026Mar 3 9:41 PMHOWARD HORN
Proposed Sale
1,635$22.40$36.6K

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Mar 2, 2026Mar 2 10:08 PMHOWARD HORN
Proposed Sale
3,119$22.54$70.3K

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Feb 2, 2026Feb 3 5:00 PMHoward HornChief Financial Officer
Sale
3,061$23.56$72.1K88,935(D)

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Feb 2, 2026Feb 2 9:09 PMHOWARD HORN
Proposed Sale
3,061$23.56$72.1K

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Jan 2, 2026Jan 2 9:10 PMHOWARD HORN
Proposed Sale
3,150$22.84$71.9K

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Dec 10, 2025Dec 10 9:05 PMHOWARD HORN
Proposed Sale
3,081$36.38$112.1K

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Sep 12, 2025Sep 12 8:17 PMKARAH PARSCHAUER
Proposed Sale
2,450$31.17$76.4K

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Jun 20, 2025Jun 20 8:02 PMCORAZON D. SANDERS
Proposed Sale
2,405$37.39$89.9K

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Feb 28, 2025Feb 28 9:11 PMKAKKIS EMIL D
Proposed Sale
25,000$42.48$1.1M

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Feb 27, 2025Feb 27 10:08 PMParschauer Karah Herdman
Proposed Sale
2,990$42.88$128.2K

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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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