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Ultragenyx Pharmaceutical
RARE

Overview Fund Activity

307 hedge funds and large institutions have $3.42B invested in Ultragenyx Pharmaceutical in 2025 Q2 according to their latest regulatory filings, with 54 funds opening new positions, 116 increasing their positions, 108 reducing their positions, and 43 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
307
Holders Change
+10
Holders Change %
+3.37%
% of All Funds
4.12%
Holding in Top 10
6
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-14.29%
% of All Funds
0.08%
New
54
Increased
116
Reduced
108
Closed
43
Calls
$149M
Puts
$87.7M
Net Calls
+$60.8M
Net Calls Change
+$59.2M

Top Buyers

1
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
$119M
2
Fidelity Investments
Fidelity Investments
Massachusetts
$94.7M
3
BBA
Baker Bros. Advisors
New York
$101M
4
Assenagon Asset Management
Assenagon Asset Management
Luxembourg
$42.3M
5
FCM
Farallon Capital Management
California
$32.7M

Top Sellers

1
Adage Capital Partners
Adage Capital Partners
Massachusetts
$55.6M
2
Wellington Management Group
Wellington Management Group
Massachusetts
$68.1M
3
ACA
Avoro Capital Advisors
New York
$12M
4
VPC
Vestal Point Capital
New York
$0
5
Invesco
Invesco
Georgia
$26.3M
Name Holding Trade Value Shares
Change 		Shares
Change %
CM
76
Caption Management
Oklahoma
$8.64M +$2.13M +58,672 +33%
Macquarie Group
77
Macquarie Group
Australia
$8.55M -$1.76M -48,452 -17%
TI
78
Trexquant Investment
Connecticut
$8.54M -$1.23M -33,754 -13%
BNP Paribas Financial Markets
79
BNP Paribas Financial Markets
France
$8.21M +$1.78M +48,975 +28%
CCM
80
Catalio Capital Management
New York
$7.76M +$7.76M +213,402 New
WCM Investment Management
81
WCM Investment Management
California
$7.69M +$302K +8,256 +4%
Renaissance Technologies
82
Renaissance Technologies
New York
$7.57M -$3.32M -91,300 -30%
PCM
83
Peregrine Capital Management
Minnesota
$6.89M +$729K +20,053 +12%
Fisher Asset Management
84
Fisher Asset Management
Washington
$6.75M -$800K -21,999 -11%
Man Group
85
Man Group
United Kingdom
$6.7M -$9.85M -270,971 -60%
Barclays
86
Barclays
United Kingdom
$6.5M +$1.3M +35,730 +25%
MFAM
87
Motley Fool Asset Management
Virginia
$6.09M +$3.02M +82,975 +98%
Swiss National Bank
88
Swiss National Bank
Switzerland
$5.86M – – –
PP
89
PDT Partners
New York
$5.7M +$1.88M +51,772 +49%
APM
90
Avidity Partners Management
Texas
$5.6M -$6.11M -168,100 -52%
PHP
91
Parkman Healthcare Partners
Connecticut
$5.38M -$5.68M -156,264 -51%
EAM
92
EFG Asset Management
Oregon
$4.94M +$469K +12,908 +10%
SCM
93
Superstring Capital Management
New York
$4.74M +$4.74M +130,422 New
TD Asset Management
94
TD Asset Management
Ontario, Canada
$4.5M -$531K -14,600 -11%
GGHC
95
Gilder Gagnon Howe & Co
New York
$4.48M +$3.86M +106,239 +629%
Russell Investments Group
96
Russell Investments Group
United Kingdom
$4.37M +$595K +16,373 +16%
AG
97
Algert Global
California
$4.23M -$508K -13,973 -11%
PA
98
Pinnacle Associates
New York
$4.15M -$1.06M -29,107 -20%
California Public Employees Retirement System
99
California Public Employees Retirement System
California
$4.09M -$1.02M -27,937 -20%
Jane Street
100
Jane Street
New York
$4.06M -$1.96M -53,921 -33%
2 3
4
5 6