Ultragenyx Pharmaceutical Inc. - COMMON STOCK (RARE)

CUSIP: 90400D108

Q1 2026 13F Holders as of 31 Mar 2026

Security identity
Security type / class
Equity / COMMON STOCK
Shares outstanding
98,459,627
Holder snapshot
Total 13F shares
98,106,328
Share change
+3,604,857
Total reported value
$2,053,504,491
Put/Call ratio
72%
Reported price per share
$20.95
Number of holders
292
Value change
+$63,363,219
Number of buys
178
Number of sells
127

Security key

90400D108

Report period

Q1 2026

Institutions

292

Top holders

10

RARE full security history Ownership snapshot Full 13F holder table Previous quarter: Q4 2025 Ultragenyx Pharmaceutical Inc. SEC filings Ultragenyx Pharmaceutical Inc. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Ownership snapshot

Top reported holders of RARE - Ultragenyx Pharmaceutical Inc. - COMMON STOCK (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Lead holder
VANGUARD PORTFOLIO MANAGE...
13D/G signal
VANGUARD PORTFOLIO MANAGE...
Evidence rows
15
Latest as of
31 Mar 2026
13D/G 13F Lead comparable stake: 5.5% 13D/G row: VANGUARD PORTFOLIO MANAGEMENT LLC Showing 1-6 of 15 holder rows.
Holder Evidence Ownership % Position 12M Net Δ As of
VANGUARD PORTFOLIO MANAGEMENT LLC
13D/G
Vanguard Portfolio Management
13D/G
5.5%
$113,343,858
5,410,208 shares
 $0 31 Mar 2026
BlackRock, Inc.
13D/G 13F
Company
13D/G 13F
5.1%
$183,098,959
4,820,931 shares
 $0 31 Mar 2025
STATE STREET CORP
13D/G 13F
STATE STREET CORPORATION · Company
13D/G 13F
5.1%
$114,840,356
5,021,441 shares
 $0 31 Mar 2026
SANDS CAPITAL MANAGEMENT, LLC
13D/G 13F
Company
13D/G 13F
4.7%
$163,238,154
4,298,003 shares
 $0 31 Dec 2024
FMR LLC
13D/G 13F
Company
13D/G 13F
3.5%
$77,001,475
3,347,890 shares
 -$106,192,081 31 Dec 2025
WELLINGTON MANAGEMENT GROUP LLP
13D/G 13F
Company
13D/G 13F
2.7%
$93,337,483
2,457,543 shares
 $0 31 Dec 2024
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q1 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions
292
Shares
98,106,328
Rows available
292
Investor Option Weight % Change % Reported value * Price Shares Share Change Activity Report Period

* Reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that failed the local validity check.

Compare Q1 2026 vs Q4 2025 Across Filers

Q4 2025 holders
285
Q1 2026 holders
292
Holder diff
7
Investor Q4 2025 Shares Q1 2026 Shares Share Diff Share Chg % Q4 2025 value Q1 2026 value Value change Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
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