Ultragenyx Pharmaceutical Inc. RARE NASDAQ

NASDAQ Global Select • Healthcare • Biotechnology • US • USD

SharesGrow Score

56/100

3/7 Pass

SharesGrow Intrinsic Value

There have been 50 recent insider transactions recorded for Ultragenyx Pharmaceutical Inc. (RARE), including 18 buys and 32 sells. Total insider buying was valued at $7.36M and total insider selling at $8.65M.

Notable insiders with recent activity include Horn Howard, Parschauer Karah Herdman, Kakkis Emil D. Insider transactions can provide insights into how company leadership views the stock's valuation and future prospects.

Insider Transactions — RARE

Date	Name	Role	Transaction	Shares	Avg. Price	Value	Shares Owned
2026-04-01	Horn Howard	Chief Financial Officer	Informative Sell	4,683	$20.97	$98.2K	80,351
2026-03-10	Parschauer Karah Herdman	EVP and Chief Legal Officer	Informative Sell	3,508	$22.67	$79.53K	66,820
2026-03-06	Parschauer Karah Herdman	EVP and Chief Legal Officer	Informative Sell	6,018	$21.40	$128.79K	70,328
2026-03-03	Horn Howard	Chief Financial Officer	Informative Sell	1,635	$22.40	$36.62K	85,034
2026-03-02	Kakkis Emil D	President & CEO	Informative Sell	54,404	$22.80	$1.24M	658,994
2026-03-02	Huizenga Theodore Alan	SVP, Chief Accounting Officer	Informative Sell	1,632	$22.80	$37.21K	48,670
2026-03-02	Huang Dennis Karl	See Remarks	Tax Withholding of RSU	999	$23.39	$23.37K	124,729
2026-03-02	Pinion John Richard	See Remarks	Informative Sell	10,029	$22.80	$228.66K	110,026
2026-03-02	Crombez Eric	EVP and Chief Medical Officer	Informative Sell	7,029	$22.80	$160.26K	76,301
2026-03-02	Parschauer Karah Herdman	EVP and Chief Legal Officer	Informative Sell	8,135	$22.80	$185.48K	76,346
2026-03-02	Harris Erik	EVP & Chief Commercial Officer	Informative Sell	10,539	$22.80	$240.29K	89,515
2026-03-02	Horn Howard	Chief Financial Officer	Informative Sell	3,119	$22.54	$70.3K	86,669
2026-03-01	Kakkis Emil D	President & CEO	RSU Award	71,177	-	-	712,908
2026-03-01	Huang Dennis Karl	See Remarks	RSU Award	11,137	-	-	125,728
2026-03-01	Pinion John Richard	See Remarks	RSU Award	11,137	-	-	119,565
2026-03-01	Crombez Eric	EVP and Chief Medical Officer	RSU Award	11,643	-	-	83,173
2026-03-01	Parschauer Karah Herdman	EVP and Chief Legal Officer	RSU Award	11,137	-	-	84,408
2026-03-01	Harris Erik	EVP & Chief Commercial Officer	RSU Award	11,643	-	-	99,498
2026-03-01	Horn Howard	Chief Financial Officer	RSU Award	6,143	-	-	95,078
2026-02-02	Horn Howard	Chief Financial Officer	Informative Sell	3,061	$23.56	$72.12K	88,935
2026-01-02	Horn Howard	Chief Financial Officer	Informative Sell	3,150	$22.84	$71.95K	91,996
2025-12-29	Huizenga Theodore Alan	SVP, Chief Accounting Officer	Informative Sell	85	$34.38	$2.92K	50,450
2025-12-10	Horn Howard	Chief Financial Officer	Informative Sell	3,081	$36.38	$112.09K	95,146
2025-10-13	Horn Howard	Chief Financial Officer	Informative Sell	7,942	$31.51	$250.25K	98,227
2025-09-18	Huizenga Theodore Alan	SVP, Chief Accounting Officer	Informative Sell	64	$29.17	$1.87K	50,242
2025-09-12	Parschauer Karah Herdman	EVP and Chief Legal Officer	Informative Sell	2,450	$31.17	$76.37K	73,271
2025-09-05	Huizenga Theodore Alan	SVP, Chief Accounting Officer	Informative Sell	84	$31.39	$2.64K	50,306
2025-06-20	Sanders Corazon (corsee) D.	Director	Informative Sell	2,405	$37.39	$89.92K	15,344
2025-05-15	Welch Daniel G	Director	RSU Award	10,787	$34.84	$375.82K	10,787
2025-05-15	Dunsire Deborah	Director	RSU Award	10,787	$34.84	$375.82K	10,787
2025-05-15	Narachi Michael	Director	RSU Award	10,787	$34.84	$375.82K	10,787
2025-05-15	Fust Matthew K	Director	RSU Award	10,787	$34.84	$375.82K	10,787
2025-05-15	Suliman Shehnaaz	Director	RSU Award	10,787	$34.84	$375.82K	10,787
2025-05-15	Sanders Corazon (corsee) D.	Director	RSU Award	10,787	$34.84	$375.82K	10,787
2025-05-15	Ray Amrit	Director	RSU Award	10,787	$34.84	$375.82K	10,787
2025-05-05	Crombez Eric	EVP and Chief Medical Officer	Informative Sell	520	$39.24	$20.4K	71,530
2025-04-21	Crombez Eric	EVP and Chief Medical Officer	Informative Sell	242	$35.11	$8.5K	71,680
2025-03-06	Horn Howard	Chief Financial Officer	Informative Sell	1,785	$40.40	$72.11K	106,169
2025-03-03	Kakkis Emil D	President & CEO	Informative Sell	73,434	$42.10	$3.09M	641,731
2025-03-03	Kassberg Thomas Richard	Cbo & EVP	Tax Withholding of RSU	508	$42.92	$21.8K	264,730
2025-03-03	Huizenga Theodore Alan	SVP, Chief Accounting Officer	Tax Withholding of RSU	141	$42.92	$6.05K	50,124
2025-03-03	Huang Dennis Karl	See Remarks	Tax Withholding of RSU	1,348	$42.92	$57.86K	114,591
2025-03-03	Pinion John Richard	See Remarks	Informative Sell	14,439	$42.10	$607.88K	107,766
2025-03-03	Crombez Eric	EVP and Chief Medical Officer	Informative Sell	8,945	$42.10	$376.58K	71,922
2025-03-03	Parschauer Karah Herdman	EVP and Chief Legal Officer	Informative Sell	12,846	$42.10	$540.82K	75,287
2025-03-03	Harris Erik	EVP & Chief Commercial Officer	Informative Sell	15,103	$42.10	$635.84K	87,855
2025-03-01	Parschauer Karah Herdman	EVP and Chief Legal Officer	RSU Award	26,074	$42.92	$1.12M	26,074
2025-03-01	Kakkis Emil D	President & CEO	RSU Award	78,448	$42.92	$3.37M	78,448
2025-03-01	Kassberg Thomas Richard	Cbo & EVP	RSU Award	18,443	-	-	271,266
2025-03-01	Huizenga Theodore Alan	SVP, Chief Accounting Officer	RSU Award	5,632	$42.92	$241.73K	5,632

■ Informative Buy/Sell — open market transaction (most significant) ■ Uninformative Buy — award, option exercise, conversion ■ Uninformative Sell — tax withholding, award vest sale ■ Neutral — gift, trust, expiry