Insider Transactions Reported by 20 Insiders of Ultragenyx Pharmaceutical Inc.

Symbol
RARE on Nasdaq
Location
Novato, CA

Insiders trading volume in the past year

Ultragenyx Pharmaceutical Inc. executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
Emil D. Kakkis President & CEO, Director $63,688,584 -$1,240,411 -1.9% 01 Mar 2026
Thomas Richard Kassberg Cbo & Evp $11,362,212 01 Mar 2025
Dennis Karl Huang EVP, Chief Technical Operations Officer $2,917,411 01 Mar 2026
John Richard Pinion EVP, Chief Quality Operations Officer $2,508,592 -$228,661 -8.4% 01 Mar 2026
Erik Harris EVP & Chief Commercial Officer $2,040,942 -$240,289 -11% 01 Mar 2026
Howard Horn Chief Financial Officer $1,904,761 -$733,941 -28% 01 Mar 2026
Eric Crombez EVP and Chief Medical Officer $1,739,662 -$189,163 -9.8% 01 Mar 2026
William Aliski Director $1,623,405 24 Jun 2021
Karah Herdman Parschauer EVP and Chief Legal Officer $1,514,809 -$470,156 -24% 06 Mar 2026
Mardi Dier CFO & Executive Vice President $1,400,595 14 Oct 2022
Daniel G. Welch Director $1,241,566 15 May 2025
Michael Narachi Director $1,241,566 15 May 2025
Deborah Dunsire Director $1,170,353 15 May 2025
Theodore Alan Huizenga SVP, Chief Accounting Officer $1,109,676 -$44,636 -3.9% 02 Mar 2026
Matthew K. Fust Director $985,391 15 May 2025
Shehnaaz Suliman Director $985,201 15 May 2025
Camille L. Bedrosian EVP and Chief Medical Officer $981,120 01 Mar 2023
Amrit Ray Director $887,402 15 May 2025
Corazon (corsee) D. Sanders Director $573,712 -$89,923 -14% 20 Jun 2025
Lars G. Ekman Director $372,645 24 Jun 2022

Recent Insider Transactions by Companies or Individuals for Ultragenyx Pharmaceutical Inc.

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
Karah Herdman Parschauer RARE Common Stock Sale -4.99% $79,526 $22.67 -3,508 66,820 10 Mar 2026 Direct
Karah Herdman Parschauer RARE Common Stock Sale -7.88% $128,785 $21.40 -6,018 70,328 06 Mar 2026 Direct
Howard Horn RARE Common Stock Sale -1.89% $36,624 $22.40 -1,635 85,034 03 Mar 2026 Direct
John Richard Pinion RARE Common Stock Sale -8.35% $228,661 $22.80 -10,029 110,026 02 Mar 2026 Direct
Erik Harris RARE Common Stock Sale -10.5% $240,289 $22.80 -10,539 89,515 02 Mar 2026 Direct
Emil D. Kakkis RARE Common Stock Sale -7.63% $1,240,411 $22.80 -54,404 658,994 02 Mar 2026 Direct
Karah Herdman Parschauer RARE Common Stock Sale -9.63% $185,478 $22.80 -8,135 76,346 02 Mar 2026 Direct
Theodore Alan Huizenga RARE Common Stock Sale -3.24% $37,210 $22.80 -1,632 48,670 02 Mar 2026 Direct
Theodore Alan Huizenga RARE Common Stock Tax liability -0.29% -148 50,302 02 Mar 2026 Direct
Howard Horn RARE Common Stock Sale -8.84% $190,914 $22.70 -8,409 86,669 02 Mar 2026 Direct
Eric Crombez RARE Common Stock Sale -8.44% $160,261 $22.80 -7,029 76,301 02 Mar 2026 Direct
Dennis Karl Huang RARE Common Stock Tax liability -0.79% -999 124,729 02 Mar 2026 Direct
John Richard Pinion RARE Common Stock Award 10.3% 11,137 119,565 01 Mar 2026 Direct
Erik Harris RARE Common Stock Award 13.2% 11,643 99,498 01 Mar 2026 Direct
Emil D. Kakkis RARE Common Stock Award 11.1% 71,177 712,908 01 Mar 2026 Direct
Karah Herdman Parschauer RARE Common Stock Award 15.2% 11,137 84,408 01 Mar 2026 Direct
Howard Horn RARE Common Stock Award 6.91% 6,143 95,078 01 Mar 2026 Direct
Eric Crombez RARE Common Stock Award 16.3% 11,643 83,173 01 Mar 2026 Direct
Dennis Karl Huang RARE Common Stock Award 9.72% 11,137 125,728 01 Mar 2026 Direct
Howard Horn RARE Common Stock Sale -3.33% $72,117 $23.56 -3,061 88,935 02 Feb 2026 Direct
Howard Horn RARE Common Stock Sale -3.31% $71,946 $22.84 -3,150 91,996 02 Jan 2026 Direct
Theodore Alan Huizenga RARE Common Stock Sale -0.17% $2,922 $34.38 -85 50,450 29 Dec 2025 Direct
Howard Horn RARE Common Stock Sale -3.14% $112,087 $36.38 -3,081 95,146 10 Dec 2025 Direct
Howard Horn RARE Common Stock Sale -7.48% $250,252 $31.51 -7,942 98,227 13 Oct 2025 Direct
Theodore Alan Huizenga RARE Common Stock Sale -0.13% $1,867 $29.17 -64 50,242 18 Sep 2025 Direct
Karah Herdman Parschauer RARE Common Stock Sale -3.24% $76,366 $31.17 -2,450 73,271 12 Sep 2025 Direct
Theodore Alan Huizenga RARE Common Stock Sale -0.17% $2,637 $31.39 -84 50,306 05 Sep 2025 Direct
Corazon (corsee) D. Sanders RARE Common Stock Sale -13.6% $89,923 $37.39 -2,405 15,344 20 Jun 2025 Direct
Shehnaaz Suliman RARE Common Stock Award 28.4% 5,740 25,940 15 May 2025 Direct
Shehnaaz Suliman RARE Stock Option (Right to Buy) Award 10,787 10,787 15 May 2025 Direct
Daniel G. Welch RARE Common Stock Award 21.3% 5,740 32,690 15 May 2025 Direct
Daniel G. Welch RARE Stock Option (Right to Buy) Award 10,787 10,787 15 May 2025 Direct
Corazon (corsee) D. Sanders RARE Common Stock Award 47.8% 5,740 17,749 15 May 2025 Direct
Corazon (corsee) D. Sanders RARE Stock Option (Right to Buy) Award 10,787 10,787 15 May 2025 Direct
Michael Narachi RARE Common Stock Award 21.3% 5,740 32,690 15 May 2025 Direct
Michael Narachi RARE Stock Option (Right to Buy) Award 10,787 10,787 15 May 2025 Direct
Matthew K. Fust RARE Common Stock Award 28.4% 5,740 25,945 15 May 2025 Direct
Matthew K. Fust RARE Stock Option (Right to Buy) Award 10,787 10,787 15 May 2025 Direct
Deborah Dunsire RARE Common Stock Award 22.9% 5,740 30,815 15 May 2025 Direct
Deborah Dunsire RARE Stock Option (Right to Buy) Award 10,787 10,787 15 May 2025 Direct
Amrit Ray RARE Common Stock Award 32.6% 5,740 23,365 15 May 2025 Direct
Amrit Ray RARE Stock Option (Right to Buy) Award 10,787 10,787 15 May 2025 Direct
Eric Crombez RARE Common Stock Sale -0.72% $20,405 $39.24 -520 71,530 05 May 2025 Direct
Eric Crombez RARE Common Stock Sale -0.34% $8,497 $35.11 -242 71,680 21 Apr 2025 Direct
Howard Horn RARE Common Stock Sale -1.65% $72,114 $40.40 -1,785 106,169 06 Mar 2025 Direct
Thomas Richard Kassberg RARE Common Stock Tax liability -0.19% -508 264,730 03 Mar 2025 Direct
Thomas Richard Kassberg RARE Common Stock Sale -2.22% $253,779 $42.10 -6,028 265,238 03 Mar 2025 Direct
Karah Herdman Parschauer RARE Common Stock Sale -14.6% $540,817 $42.10 -12,846 75,287 03 Mar 2025 Direct
Eric Crombez RARE Common Stock Sale -11.1% $376,584 $42.10 -8,945 71,922 03 Mar 2025 Direct
John Richard Pinion RARE Common Stock Tax liability -0.03% -31 108,428 03 Mar 2025 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.