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Ultragenyx Pharmaceutical Inc. (RARE) institutional ownership

Latest close $27.02 Jul 23, 2026
Market cap$2.8B 52-week range SectorHealthcare
Funds holding · Q1 2026
306
reported RARE position changes
Top owners · Q1 2026
No disclosed owners are available.
Institutional activity · Q1 2026
Activity unavailable N/A
177 buyers · 129 sellers

Ultragenyx Pharmaceutical Inc. (RARE) price and institutional activity

Dates

Q1 2026

$0 bought by 177 investors
AQR Capital Management LLCSofinnova Investments, Inc. +175 more
$0 sold by 129 investors
JPMorgan Chase & CoBaker Bros. Advisors LP +127 more
Bought Sold Totals per quarter; hover a bar for the names.

Ultragenyx Pharmaceutical Inc. (RARE) institutional activity · 306

Investor Type Est. change Change Δ Own Date
JPMorgan Chase & Co · Reduced
Change −3.7M Date Q1 2026
JPMorgan Chase & Co Reduced· Q1 2026 −3.7M Q1 2026
AQR Capital Management LLC · Added
Change +3.2M Date Q1 2026
AQR Capital Management LLC Added· Q1 2026 +3.2M Q1 2026
Sofinnova Investments, Inc. · Added
Change +3.1M Date Q1 2026
Sofinnova Investments, Inc. Added· Q1 2026 +3.1M Q1 2026
Baker Bros. Advisors LP · Exited
Change −2.8M Δ Own −100.0% Date Q1 2026
Baker Bros. Advisors LP Exited· Q1 2026 −2.8M −100.0% Q1 2026
FMR LLC · Reduced
Change −2.4M Δ Own −89.2% Date Q1 2026
FMR LLC Reduced· Q1 2026 −2.4M −89.2% Q1 2026
Bellevue Group AG · Added
Change +2.4M Date Q1 2026
Bellevue Group AG Added· Q1 2026 +2.4M Q1 2026
Assenagon Asset Management S.A. · Added
Change +2.1M Date Q1 2026
Assenagon Asset Management S.A. Added· Q1 2026 +2.1M Q1 2026
Suvretta Capital Management, LLC · Exited
Change −2.0M Δ Own −100.0% Date Q1 2026
Suvretta Capital Management, LLC Exited· Q1 2026 −2.0M −100.0% Q1 2026
Two Sigma Investments, LP · Added
Change +1.8M Δ Own +420.2% Date Q1 2026
Two Sigma Investments, LP Added· Q1 2026 +1.8M +420.2% Q1 2026
BNP Paribas Asset Management Holding S.A. · Reduced
Change −1.5M Date Q1 2026
BNP Paribas Asset Management Holding S.A. Reduced· Q1 2026 −1.5M Q1 2026
Aberdeen Group PLC · Reduced
Change −1.4M Date Q1 2026
Aberdeen Group PLC Reduced· Q1 2026 −1.4M Q1 2026
Norges · Exited
Change −1.3M Δ Own −100.0% Date Q1 2026
Norges Exited· Q1 2026 −1.3M −100.0% Q1 2026
Jones Hill Capital LP · New
Change +1.2M Date Q1 2026
Jones Hill Capital LP New· Q1 2026 +1.2M Q1 2026
D. E. Shaw & Co., Inc. · Added
Change +916K Δ Own +265.8% Date Q1 2026
D. E. Shaw & Co., Inc. Added· Q1 2026 +916K +265.8% Q1 2026
Qube Research & Technologies Ltd · New
Change +915K Date Q1 2026
Qube Research & Technologies Ltd New· Q1 2026 +915K Q1 2026
Data through Q1 2026 · filed Jun 2, 2026
15 of 306

Famous investor activity in Ultragenyx Pharmaceutical Inc. (RARE)

Ultragenyx Pharmaceutical Inc. (RARE) insider trading

Company insiders, action and economics first; trade and filed dates last.
Dates
Insider Title Type Price Qty Value Owned ΔOwn Trade date Filed date
Horn Howard · Officer Sell −$156K
Price $33.13 Qty −5K Owned 101K ΔOwn −4.4% Trade date Jul 1, 2026 Filed date Jul 6, 2026
Horn Howard Officer Sell $33.13 −5K −$156K 101K −4.4% Jul 1, 2026 Jul 6, 2026
Sanders Corazon (corsee) D. · Director Sell −$50K
Price $25.05 Qty −2K Owned 21K Trade date Jun 15, 2026 Filed date Jun 15, 2026
Sanders Corazon (corsee) D. Director Sell $25.05 −2K −$50K 21K Jun 15, 2026 Jun 15, 2026
Parschauer Karah Herdman · Officer Sell −$47K
Price $24.62 Qty −2K Owned 94K Trade date Jun 15, 2026 Filed date Jun 15, 2026
Parschauer Karah Herdman Officer Sell $24.62 −2K −$47K 94K Jun 15, 2026 Jun 15, 2026
Horn Howard · CFO Sell −$111K
Price $23.77 Qty −5K Owned 106K Trade date Jun 1, 2026 Filed date Jun 1, 2026
Horn Howard CFO Sell $23.77 −5K −$111K 106K Jun 1, 2026 Jun 1, 2026
Suliman Shehnaaz · Director Sell −$144K
Price $25.12 Qty −6K Owned 28K Trade date May 18, 2026 Filed date May 18, 2026
Suliman Shehnaaz Director Sell $25.12 −6K −$144K 28K May 18, 2026 May 18, 2026
Fust Matthew K. · Director 2 operations 22K
Owned 14K Trade date May 14, 2026 Filed date May 18, 2026
Fust Matthew K. Director 2 operations 22K 14K May 14, 2026 May 18, 2026
Suliman Shehnaaz · Director 2 operations 22K
Owned 14K Trade date May 14, 2026 Filed date May 18, 2026
Suliman Shehnaaz Director 2 operations 22K 14K May 14, 2026 May 18, 2026
Ray Amrit · Director 2 operations 22K
Owned 14K Trade date May 14, 2026 Filed date May 18, 2026
Ray Amrit Director 2 operations 22K 14K May 14, 2026 May 18, 2026
Sanders Corazon (corsee) D. · Director 2 operations 22K
Owned 14K Trade date May 14, 2026 Filed date May 18, 2026
Sanders Corazon (corsee) D. Director 2 operations 22K 14K May 14, 2026 May 18, 2026
Narachi Michael · Director 2 operations 22K
Owned 14K Trade date May 14, 2026 Filed date May 18, 2026
Narachi Michael Director 2 operations 22K 14K May 14, 2026 May 18, 2026
Welch Daniel G. · Director 2 operations 22K
Owned 14K Trade date May 14, 2026 Filed date May 18, 2026
Welch Daniel G. Director 2 operations 22K 14K May 14, 2026 May 18, 2026
Dunsire Deborah · Director 2 operations 22K
Owned 14K Trade date May 14, 2026 Filed date May 18, 2026
Dunsire Deborah Director 2 operations 22K 14K May 14, 2026 May 18, 2026
Crombez Eric · Officer Sell −$9K
Price $24.96 Qty −344 Owned 111K Trade date May 5, 2026 Filed date May 6, 2026
Crombez Eric Officer Sell $24.96 −344 −$9K 111K May 5, 2026 May 6, 2026
Horn Howard · CFO Sell −$117K
Price $24.90 Qty −5K Owned 110K Trade date May 1, 2026 Filed date May 4, 2026
Horn Howard CFO Sell $24.90 −5K −$117K 110K May 1, 2026 May 4, 2026
Huizenga Theodore Alan · Officer 2 operations 28K
Owned 7K Trade date Apr 22, 2026 Filed date Apr 24, 2026
Huizenga Theodore Alan Officer 2 operations 28K 7K Apr 22, 2026 Apr 24, 2026
15 of 50
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Ultragenyx Pharmaceutical Inc. (RARE) activist and large shareholders

Dates
Owner/Filer identity Shares reported % of shares outstanding Filing date
Vanguard Group Inc 8.7M
% of shares outstanding 10.6% Filing date Feb 13, 2024
Vanguard Group Inc 8.7M 10.6% Feb 13, 2024
BlackRock Inc. 5.2M
% of shares outstanding 6.4% Filing date Jan 29, 2024
BlackRock Inc. 5.2M 6.4% Jan 29, 2024
Vanguard Portfolio Management 5.4M
% of shares outstanding 5.5% Filing date Apr 29, 2026
Vanguard Portfolio Management 5.4M 5.5% Apr 29, 2026
Wellington Management Group LLP 4.4M
% of shares outstanding 5.4% Filing date Feb 8, 2024
Wellington Management Group LLP 4.4M 5.4% Feb 8, 2024
State Street Corporation 5.0M
% of shares outstanding 5.1% Filing date May 12, 2026
State Street Corporation 5.0M 5.1% May 12, 2026
Sands Capital Management, LLC 4.1M
% of shares outstanding 5.0% Filing date Feb 13, 2024
Sands Capital Management, LLC 4.1M 5.0% Feb 13, 2024
Capital Research Global Investors 3.4M
% of shares outstanding 5.0% Filing date Oct 8, 2021
Capital Research Global Investors 3.4M 5.0% Oct 8, 2021
Federated Hermes, Inc. 3.1M
% of shares outstanding 4.4% Filing date Jan 10, 2023
Federated Hermes, Inc. 3.1M 4.4% Jan 10, 2023
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Ultragenyx Pharmaceutical Inc. (RARE) ownership FAQ

Who owns RARE?

306 reporting institutions disclosed RARE position changes in the Q1 2026 snapshot.

How is institutional activity calculated?

For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.

What are activist and large shareholder filings?

An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.

Where does this data come from?

Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.

Why are ownership reports delayed?

Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.

How are missing table values shown?

A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.