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Ultragenyx Pharmaceutical
RARE

Overview Fund Activity

297 hedge funds and large institutions have $3.22B invested in Ultragenyx Pharmaceutical in 2025 Q1 according to their latest regulatory filings, with 34 funds opening new positions, 125 increasing their positions, 104 reducing their positions, and 44 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
297
Holders Change
-13
Holders Change %
-4.19%
% of All Funds
4.03%
Holding in Top 10
7
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+40%
% of All Funds
0.1%
New
34
Increased
125
Reduced
104
Closed
44
Calls
$43.9M
Puts
$42.2M
Net Calls
+$1.65M
Net Calls Change
+$8.06M

Top Buyers

1
Adage Capital Partners
Adage Capital Partners
Massachusetts
+$35M
2
SCM
Suvretta Capital Management
New York
+$31.6M
3
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
+$25.6M
4
DTC
Deep Track Capital
Connecticut
+$25.2M
5
PCH
Polar Capital Holdings
United Kingdom
+$23.6M

Top Sellers

1
VPC
Vestal Point Capital
New York
-$36.2M
2
Marshall Wace
Marshall Wace
United Kingdom
-$26M
3
First Trust Advisors
First Trust Advisors
Illinois
-$19.1M
4
Invesco
Invesco
Georgia
-$17.6M
5
AllianceBernstein
AllianceBernstein
Tennessee
-$13.8M
Name Holding Trade Value Shares
Change 		Shares
Change %
SEI Investments
101
SEI Investments
Pennsylvania
$4.06M +$503K +13,905 +14%
PP
102
PDT Partners
New York
$3.8M +$2.03M +56,062 +115%
RhumbLine Advisers
103
RhumbLine Advisers
Massachusetts
$3.79M +$7.06K +195 +0.2%
Russell Investments Group
104
Russell Investments Group
United Kingdom
$3.76M +$1.25M +34,635 +50%
CAG
105
Crestwood Advisors Group
Massachusetts
$3.65M -$36.2K -1,000 -1%
ACM
106
Aquatic Capital Management
Illinois
$3.48M -$230K -6,363 -6%
TC
107
TwinBeech Capital
New York
$3.45M +$2.23M +61,547 +182%
State Board of Administration of Florida Retirement System
108
State Board of Administration of Florida Retirement System
Florida
$3.38M – – –
AQR Capital Management
109
AQR Capital Management
Connecticut
$3.31M -$6.77M -188,500 -67%
Rafferty Asset Management
110
Rafferty Asset Management
New York
$3.22M -$452K -12,481 -12%
Principal Financial Group
111
Principal Financial Group
Iowa
$3.19M -$68.3K -1,887 -2%
UOC
112
UBS O'Connor
Illinois
$3.18M +$2.37M +65,527 +294%
DFO
113
Duquesne Family Office
New York
$3.09M – – –
MFAM
114
Motley Fool Asset Management
Virginia
$3.06M +$1.3M +36,025 +74%
RPAM
115
Rhenman & Partners Asset Management
Sweden
$2.97M +$2.97M +82,000 New
GCM
116
Graham Capital Management
Connecticut
$2.88M +$737K +20,347 +34%
CCM
117
Cinctive Capital Management
New York
$2.8M +$518K +14,301 +23%
California State Teachers Retirement System (CalSTRS)
118
California State Teachers Retirement System (CalSTRS)
California
$2.79M -$38.1K -1,053 -1%
State of Wisconsin Investment Board
119
State of Wisconsin Investment Board
Wisconsin
$2.69M +$219K +6,056 +9%
BFM
120
Boothbay Fund Management
New York
$2.38M +$406K +11,200 +21%
EGM
121
Engineers Gate Manager
New York
$2.3M +$1.02M +28,161 +80%
VOYA Investment Management
122
VOYA Investment Management
Georgia
$2.29M -$330K -9,125 -13%
Mirae Asset Global ETFs Holdings
123
Mirae Asset Global ETFs Holdings
Hong Kong
$2.24M -$144K -3,956 -6%
New York State Common Retirement Fund
124
New York State Common Retirement Fund
New York
$2.23M +$112K +3,096 +5%
HWAM
125
Hennion & Walsh Asset Management
New Jersey
$2.21M -$74.6K -2,060 -3%
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5
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