RARE

Ultragenyx Pharmaceutical Inc.

Pharmaceutical PreparationsNasdaqLarge accelerated filer

Total Trades

Buys

Sells

Largest Trade

N/A

Insiders

Institutional Funds

212

Inst. Value

$1M+

Activist Filings

Insider Trades

Insider	Title	Type	Value	Shares	Price	Date
Kassberg Thomas Richard	CBO & EVP	SELL	$50K–$100K	2K	$45.27	Mar 4, 2023
Huizenga Theodore Alan	SVP	SELL	$1K–$15K	100	$45.65	Mar 4, 2023
Huizenga Theodore Alan	SVP	GRANT	N/A	8K	—	Mar 4, 2023
Huang Dennis Karl	See Remarks	SELL	$15K–$50K	389	$45.65	Mar 4, 2023
Huang Dennis Karl	See Remarks	GRANT	N/A	25K	—	Mar 4, 2023
Pinion John Richard	See Remarks	SELL	$100K–$500K	4K	$45.26	Mar 4, 2023
Pinion John Richard	See Remarks	GRANT	N/A	25K	—	Mar 4, 2023
Harris Erik	EVP & Chief Commer…	SELL	$100K–$500K	4K	$45.25	Mar 4, 2023
Harris Erik	EVP & Chief Commer…	GRANT	N/A	25K	—	Mar 4, 2023
Huizenga Theodore Alan	SVP	SELL	$15K–$50K	639	$43.40	Mar 2, 2023
KAKKIS EMIL D	President & CEO	SELL	$500K+	20K	$45.57	Jan 3, 2023
Huizenga Theodore Alan	SVP	SELL	$50K–$100K	2K	$43.96	Dec 22, 2022
Dier Mardi	CFO & Executive Vi…	SELL	$50K–$100K	2K	$40.16	Oct 17, 2022
Dier Mardi	CFO & Executive Vi…	SELL	$100K–$500K	3K	$38.22	Oct 14, 2022
Harris Erik	EVP & Chief Commer…	SELL	$15K–$50K	295	$54.78	Jun 22, 2022
Huizenga Theodore Alan	SVP	SELL	$1K–$15K	132	$84.55	Apr 19, 2022
Kassberg Thomas Richard	CBO & EVP	SELL	$500K+	10K	$67.01	Mar 15, 2022
Parschauer Karah Herdman	EVP and Chief Lega…	SELL	$100K–$500K	5K	$62.95	Mar 8, 2022
Dier Mardi	CFO & Executive Vi…	GRANT	N/A	14K	—	Mar 3, 2022
Dier Mardi	CFO & Executive Vi…	SELL	$50K–$100K	954	$65.71	Mar 3, 2022
Harris Erik	EVP & Chief Commer…	SELL	$100K–$500K	3K	$66.62	Mar 3, 2022
Harris Erik	EVP & Chief Commer…	GRANT	N/A	14K	—	Mar 3, 2022
Pinion John Richard	See Remarks	GRANT	N/A	14K	—	Mar 3, 2022
Pinion John Richard	See Remarks	SELL	$100K–$500K	4K	$66.62	Mar 3, 2022
Huizenga Theodore Alan	SVP	GRANT	N/A	4K	—	Mar 3, 2022
Huizenga Theodore Alan	SVP	SELL	$50K–$100K	843	$66.62	Mar 3, 2022
Huang Dennis Karl	See Remarks	GRANT	N/A	14K	—	Mar 3, 2022
Huang Dennis Karl	See Remarks	SELL	$100K–$500K	3K	$66.62	Mar 3, 2022
Parschauer Karah Herdman	EVP and Chief Lega…	GRANT	N/A	14K	—	Mar 3, 2022
Parschauer Karah Herdman	EVP and Chief Lega…	SELL	$100K–$500K	3K	$66.62	Mar 3, 2022
Kassberg Thomas Richard	CBO & EVP	GRANT	N/A	14K	—	Mar 3, 2022
Kassberg Thomas Richard	CBO & EVP	SELL	$100K–$500K	2K	$66.62	Mar 3, 2022
Bedrosian Camille L	EVP and Chief Medi…	GRANT	N/A	14K	—	Mar 3, 2022
Bedrosian Camille L	EVP and Chief Medi…	SELL	$100K–$500K	3K	$66.62	Mar 3, 2022
Bedrosian Camille L	EVP and Chief Medi…	SELL	$100K–$500K	2K	$66.30	Feb 1, 2022

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Institutional Ownership

13F filings as of Dec 31, 2025 · 212 funds holding

Fund	Shares	Value	Type
STATE STREET CORP	4.3M	$1M+	SH
SANDS CAPITAL MANAGEMENT, LLC	3.5M	$1M+	SH
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO	201K	$1M+	SH
JACOBS LEVY EQUITY MANAGEMENT, INC	1.7M	$1M+	SH
GEODE CAPITAL MANAGEMENT, LLC	1.6M	$1M+	SH
BNP Paribas Asset Management Holding S.A.	1.5M	$1M+	SH
Aberdeen Group plc	1.5M	$1M+	SH
GW&K Investment Management, LLC	1.4M	$1M+	SH
NORGES BANK	1.3M	$1M+	SH
Pictet Asset Management Holding SA	1.2M	$1M+	SH
BNP PARIBAS FINANCIAL MARKETS	903K	$1M+	SH
Candriam S.C.A.	799K	$1M+	SH
Schonfeld Strategic Advisors LLC	742K	$1M+	SH
VOLORIDGE INVESTMENT MANAGEMENT, LLC	643K	$1M+	SH
VANGUARD GROUP INC	601K	$1M+	SH
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	599K	$1M+	SH
HRT FINANCIAL LP	502K	$1M+	SH
Jefferies Financial Group Inc.	477K	$1M+	SH
Palo Alto Investors LP	461K	$1M+	SH
Squarepoint Ops LLC	391K	$1M+	SH