Ultragenyx Pharmaceutical Inc. (RARE)

Latest Insider Confidence Score

2026Q1

47.8
Bearish

Company insider confidence (by quarter)

2014Q1 2026Q1

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Coulter James G Other 2,596,420 Jul 14, 2014
Bonderman David Other 2,596,420 Jul 14, 2014
TPG Group Holdings (SBS) Advisors, Inc. Other 2,596,420 Jul 14, 2014
Fmr Llc — 1,457,994 Aug 5, 2014
Ultragenyx Pharmaceutical Inc. Director 1,400,000 Aug 12, 2021

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Mar 1, 2026 Mar 3, 2026 Pinion John Richard Officer Sell 65.0 +1,108 0.48% ✗ $228.7K
Mar 1, 2026 Mar 3, 2026 Harris Erik EVP & Chief Commercial Officer Sell 72.5 +1,104 0.59% ✗ $240.3K
Mar 1, 2026 Mar 3, 2026 KAKKIS EMIL D CEO Sell 70.0 +16,773 0.48% ✗ $1.2M
Mar 1, 2026 Mar 3, 2026 Parschauer Karah Herdman EVP and Chief Legal Officer Sell 82.5 +3,002 1.90% ✗ $185.5K
Mar 2, 2026 Mar 3, 2026 Huizenga Theodore Alan SVP, Chief Accounting Officer Sell 46.3 -1,780 -3.53% ✗ $40.7K
Mar 1, 2026 Mar 3, 2026 Horn Howard CFO Sell 42.5 -3,901 -4.39% ✗ $227.5K
Mar 1, 2026 Mar 3, 2026 Crombez Eric EVP and Chief Medical Officer Sell 87.5 +4,614 2.98% ✗ $160.3K
Mar 1, 2026 Mar 3, 2026 Huang Dennis Karl Officer Sell 86.3 +10,138 8.85% ✗ $23.4K
Feb 2, 2026 Feb 3, 2026 Horn Howard CFO Sell 22.5 -3,061 -3.33% ✗ $72.1K
Jan 2, 2026 Jan 5, 2026 Horn Howard CFO Sell 22.5 -3,150 -3.31% ✗ $71.9K
Dec 29, 2025 Dec 30, 2025 Huizenga Theodore Alan SVP, Chief Accounting Officer Sell 52.5 -85 -0.17% ✗ $2.9K
Dec 10, 2025 Dec 11, 2025 Horn Howard CFO Sell 22.5 -3,081 -3.14% ✗ $112.1K
Oct 13, 2025 Oct 14, 2025 Horn Howard CFO Sell 40.0 -7,942 -7.48% ✗ $250.3K
Sep 18, 2025 Sep 19, 2025 Huizenga Theodore Alan SVP, Chief Accounting Officer Sell 52.5 -64 -0.13% ✗ $1.9K
Sep 12, 2025 Sep 12, 2025 Parschauer Karah Herdman EVP and Chief Legal Officer Sell 22.5 -2,450 -3.24% ✗ $76.4K
Sep 5, 2025 Sep 8, 2025 Huizenga Theodore Alan SVP, Chief Accounting Officer Sell 52.5 -84 -0.17% ✗ $2.6K
Jun 20, 2025 Jun 23, 2025 Sanders Corazon (Corsee) D. Director Sell 22.5 -2,405 -13.55% ✗ $89.9K
May 15, 2025 May 19, 2025 SULIMAN SHEHNAAZ Director Neutral 90.0 +5,740 28.42% ✗ -
May 15, 2025 May 19, 2025 WELCH DANIEL G Director Neutral 90.0 +5,740 21.30% ✗ -
May 15, 2025 May 19, 2025 Sanders Corazon (Corsee) D. Director Neutral 90.0 +5,740 47.80% ✗ -
May 15, 2025 May 19, 2025 NARACHI MICHAEL Director Neutral 90.0 +5,740 21.30% ✗ -
May 15, 2025 May 19, 2025 Fust Matthew K Director Neutral 90.0 +5,740 28.41% ✗ -
May 15, 2025 May 19, 2025 Dunsire Deborah Director Neutral 90.0 +5,740 22.89% ✗ -
May 15, 2025 May 19, 2025 Ray Amrit Director Neutral 90.0 +5,740 32.57% ✗ -
Apr 21, 2025 May 5, 2025 Crombez Eric EVP and Chief Medical Officer Sell 48.8 -762 -0.53% ✗ $28.9K
Mar 6, 2025 Mar 10, 2025 Horn Howard CFO Sell 42.5 -1,785 -1.65% ✗ $72.1K
Mar 1, 2025 Mar 4, 2025 Kassberg Thomas Richard CBO & EVP Sell 90.0 +11,907 4.71% ✗ $275.6K
Mar 1, 2025 Mar 4, 2025 Parschauer Karah Herdman EVP and Chief Legal Officer Sell 92.5 +5,597 8.03% ✗ $540.8K
Mar 1, 2025 Mar 4, 2025 Crombez Eric EVP and Chief Medical Officer Sell 97.5 +22,839 11.74% ✗ $376.6K
Mar 1, 2025 Mar 4, 2025 Pinion John Richard Officer Sell 90.0 +18,467 4.36% ✗ $609.2K
Mar 1, 2025 Mar 4, 2025 KAKKIS EMIL D CEO Sell 87.5 +52,126 1.90% ✗ $4.2M
Mar 1, 2025 Mar 4, 2025 Harris Erik EVP & Chief Commercial Officer Sell 92.5 +20,153 7.93% ✗ $635.8K
Mar 1, 2025 Mar 4, 2025 Huang Dennis Karl Officer Sell 95.0 +31,589 38.06% ✗ $57.9K
Mar 1, 2025 Mar 4, 2025 Huizenga Theodore Alan SVP, Chief Accounting Officer Sell 91.3 +8,284 19.80% ✗ $46.8K
Mar 1, 2025 Mar 4, 2025 Horn Howard CFO Neutral 90.0 +15,653 16.96% ✗ -
Feb 27, 2025 Mar 3, 2025 Parschauer Karah Herdman EVP and Chief Legal Officer Sell 90.0 +11,504 6.81% ✗ $128.2K
Dec 30, 2024 Dec 31, 2024 KAKKIS EMIL D CEO Sell 37.5 -11,727 -0.42% ✗ $495.2K
Dec 10, 2024 Dec 11, 2024 Huizenga Theodore Alan SVP, Chief Accounting Officer Neutral 27.5 -648 -1.53% ✗ -
Dec 9, 2024 Dec 11, 2024 KAKKIS EMIL D CEO Sell 20.0 -28,273 -1.01% ✗ $413.7K
Oct 10, 2024 Oct 11, 2024 Horn Howard CFO Sell 40.0 -7,465 -7.48% ✗ $393.9K
Sep 16, 2024 Sep 18, 2024 Huizenga Theodore Alan SVP, Chief Accounting Officer Neutral 77.5 +700 1.68% ✗ -
Sep 3, 2024 Sep 5, 2024 KAKKIS EMIL D CEO Sell 27.5 -20,000 -0.71% ✗ $1.1M
Sep 3, 2024 Sep 5, 2024 Huizenga Theodore Alan SVP, Chief Accounting Officer Sell 52.5 -91 -0.22% ✗ $5.1K
Aug 6, 2024 Aug 7, 2024 KAKKIS EMIL D CEO Sell 27.5 -20,000 -0.71% ✗ $1M
Jul 2, 2024 Jul 3, 2024 Sanders Corazon (Corsee) D. Director Sell 26.3 -584 -4.64% ✗ $23.9K
Jun 18, 2024 Jun 20, 2024 Dunsire Deborah Director Neutral 90.0 +5,345 27.09% ✗ -
Jun 18, 2024 Jun 20, 2024 Fust Matthew K Director Neutral 90.0 +5,345 35.97% ✗ -
Jun 18, 2024 Jun 20, 2024 WELCH DANIEL G Director Neutral 90.0 +5,345 24.74% ✗ -
Jun 18, 2024 Jun 20, 2024 NARACHI MICHAEL Director Neutral 90.0 +5,345 24.74% ✗ -
Jun 18, 2024 Jun 20, 2024 Ray Amrit Director Neutral 90.0 +5,345 43.53% ✗ -
Jun 18, 2024 Jun 20, 2024 Sanders Corazon (Corsee) D. Director Neutral 90.0 +5,345 73.74% ✗ -
Jun 18, 2024 Jun 20, 2024 SULIMAN SHEHNAAZ Director Neutral 90.0 +5,345 35.98% ✗ -
Jun 12, 2024 Jun 12, 2024 Parschauer Karah Herdman EVP and Chief Legal Officer Sell 20.0 -9,806 -14.47% ✗ $441.3K
Jun 10, 2024 Jun 10, 2024 Sanders Corazon (Corsee) D. Director Sell 22.5 -1,737 -19.33% ✗ $71.4K
May 2, 2024 May 3, 2024 Crombez Eric EVP and Chief Medical Officer Sell 48.8 -354 -0.73% ✗ $15.5K
Apr 18, 2024 Apr 19, 2024 Crombez Eric EVP and Chief Medical Officer Sell 52.5 -142 -0.29% ✗ $6.3K
Apr 16, 2024 Apr 18, 2024 Huizenga Theodore Alan SVP, Chief Accounting Officer Sell 52.5 -14 -0.03% ✗ $592.3
Mar 11, 2024 Mar 12, 2024 Kassberg Thomas Richard CBO & EVP Sell 20.0 -11,509 -4.35% ✗ $574.6K
Mar 7, 2024 Mar 11, 2024 Fust Matthew K Director Sell 20.0 -12,195 -45.07% ✗ $620.4K
Mar 1, 2024 Mar 5, 2024 Horn Howard CFO Neutral 90.0 +19,400 24.14% ✗ -
Mar 1, 2024 Mar 5, 2024 Parschauer Karah Herdman EVP and Chief Legal Officer Sell 90.0 +15,001 7.78% ✗ $201.9K
Mar 1, 2024 Mar 5, 2024 Kassberg Thomas Richard CBO & EVP Sell 90.0 +17,472 7.08% ✗ $69.1K
Mar 1, 2024 Mar 5, 2024 Huang Dennis Karl Officer Sell 91.3 +18,287 28.26% ✗ $25.2K
Mar 1, 2024 Mar 5, 2024 Pinion John Richard Officer Sell 95.0 +14,524 19.43% ✗ $227.6K
Mar 1, 2024 Mar 5, 2024 Huizenga Theodore Alan SVP, Chief Accounting Officer Sell 91.3 +13,488 48.36% ✗ $24.8K
Mar 1, 2024 Mar 5, 2024 Crombez Eric EVP and Chief Medical Officer Sell 95.0 +18,162 22.51% ✗ $66.6K
Mar 1, 2024 Mar 5, 2024 Harris Erik EVP & Chief Commercial Officer Sell 92.5 +15,589 8.04% ✗ $256.3K
Mar 1, 2024 Mar 5, 2024 KAKKIS EMIL D CEO Sell 75.0 +24,143 0.86% ✗ $935.1K
Feb 7, 2024 Feb 8, 2024 KAKKIS EMIL D CEO Sell 40.0 -30,000 -1.06% ✓ $1.4M
Dec 29, 2023 Jan 2, 2024 KAKKIS EMIL D CEO Sell 40.0 -30,000 -1.05% ✓ $1.4M
Dec 20, 2023 Jan 2, 2024 Huizenga Theodore Alan SVP, Chief Accounting Officer Neutral 82.5 +1,000 4.23% ✗ -
Oct 23, 2023 Oct 24, 2023 Kassberg Thomas Richard CBO & EVP Sell 17.5 -39,878 -13.91% ✗ $1.3M
Oct 19, 2023 Oct 23, 2023 KAKKIS EMIL D CEO Sell 40.0 -47,853 -1.64% ✓ $1.6M
Oct 9, 2023 Oct 10, 2023 Horn Howard CFO Neutral 90.0 +80,336 100.00% ✗ -
Oct 10, 2023 Horn Howard CFO Neutral 52.5 - 0.00% ✗ -
Sep 27, 2023 Sep 29, 2023 Huizenga Theodore Alan SVP, Chief Accounting Officer Neutral 52.5 - 0.00% ✗ -
Sep 27, 2023 Sep 29, 2023 Crombez Eric EVP and Chief Medical Officer Neutral 52.5 - 0.00% ✗ -
Sep 7, 2023 Sep 11, 2023 Huizenga Theodore Alan SVP, Chief Accounting Officer Sell 28.8 -2,163 -8.39% ✓ $88.2K
Sep 5, 2023 Sep 6, 2023 Harris Erik EVP & Chief Commercial Officer Sell 22.5 -6,000 -10.47% ✗ $227.8K
Sep 1, 2023 Sep 6, 2023 Huizenga Theodore Alan SVP, Chief Accounting Officer Sell 41.3 -970 -3.92% ✓ $36K
Jun 30, 2023 Jun 30, 2023 Sanders Corazon (Corsee) D. Director Sell 36.3 -585 -6.11% ✓ $27.4K
Jun 19, 2023 Jun 21, 2023 Harris Erik EVP & Chief Commercial Officer Sell 48.8 -305 -0.53% ✗ $14.7K
Jun 7, 2023 Jun 9, 2023 Ray Amrit Director Neutral 90.0 +3,860 45.84% ✗ -
Jun 7, 2023 Jun 9, 2023 Fust Matthew K Director Sell 82.5 +560 2.11% ✗ $171K
Jun 7, 2023 Jun 9, 2023 Sanders Corazon (Corsee) D. Director Sell 95.0 +2,375 33.01% ✓ $76.7K
Jun 7, 2023 Jun 9, 2023 SULIMAN SHEHNAAZ Director Neutral 90.0 +3,860 35.11% ✗ -
Jun 7, 2023 Jun 9, 2023 NARACHI MICHAEL Director Neutral 90.0 +3,860 21.75% ✗ -
Jun 7, 2023 Jun 9, 2023 Dunsire Deborah Director Neutral 90.0 +3,860 24.32% ✗ -
Jun 7, 2023 Jun 9, 2023 WELCH DANIEL G Director Neutral 90.0 +3,860 21.75% ✗ -
May 18, 2023 May 19, 2023 Pinion John Richard Officer Sell 41.3 -2,012 -2.62% ✓ $100.6K
May 9, 2023 May 10, 2023 Huizenga Theodore Alan SVP, Chief Accounting Officer Neutral 52.5 - 0.00% ✗ -
May 4, 2023 May 5, 2023 Parschauer Karah Herdman EVP and Chief Legal Officer Sell 28.8 -4,378 -7.77% ✓ $197K
May 1, 2023 May 2, 2023 Crombez Eric EVP and Chief Medical Officer Neutral 90.0 +4,658 18.02% ✗ -
May 2, 2023 Crombez Eric EVP and Chief Medical Officer Neutral 52.5 - 0.00% ✗ -
Apr 16, 2023 Apr 18, 2023 Huizenga Theodore Alan SVP, Chief Accounting Officer Sell 50.0 -195 -0.70% ✗ $7.4K
Mar 1, 2023 Mar 3, 2023 Bedrosian Camille L EVP and Chief Medical Officer Sell 42.5 -1,218 -2.54% ✗ $175.6K
Mar 1, 2023 Mar 3, 2023 Parschauer Karah Herdman EVP and Chief Legal Officer Sell 95.0 +21,502 16.43% ✗ $143K
Mar 1, 2023 Mar 3, 2023 Kassberg Thomas Richard CBO & EVP Sell 90.0 +19,301 8.48% ✗ $244K
Mar 1, 2023 Mar 3, 2023 Huizenga Theodore Alan SVP, Chief Accounting Officer Sell 95.0 +6,157 39.57% ✗ $65.4K
Mar 1, 2023 Mar 3, 2023 Huang Dennis Karl Officer Sell 97.5 +13,675 26.79% ✗ $501.6K