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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 %
UBS Group
51
UBS Group
Switzerland
$17M +$5.21M +143,831 +44%
Axa
52
Axa
France
$16.5M -$10.6K -293 -0.1%
Man Group
53
Man Group
United Kingdom
$16.5M +$5.71M +157,754 +53%
MB
54
MPM BioImpact
Massachusetts
$14.4M +$269K +7,427 +2%
Fidelity Investments
55
Fidelity Investments
Massachusetts
$13.8M -$527K -14,562 -4%
Hudson Bay Capital Management
56
Hudson Bay Capital Management
Connecticut
$13.8M +$97.8K +2,700 +0.7%
CCM
57
Cutter Capital Management
New York
$13.7M -$996K -27,500 -7%
EMFAT
58
Emerald Mutual Fund Advisers Trust
Pennsylvania
$12.3M +$599K +16,538 +5%
Marshall Wace
59
Marshall Wace
United Kingdom
$12.1M -$26M -717,495 -68%
APM
60
Avidity Partners Management
Texas
$11.7M -$1.08M -29,900 -8%
DZ Bank
61
DZ Bank
Germany
$11.3M -$1.29M -35,496 -10%
JPMorgan Chase & Co
62
JPMorgan Chase & Co
New York
$11.2M +$3.75M +103,684 +50%
PHP
63
Parkman Healthcare Partners
Connecticut
$11M +$7.39M +204,085 +204%
Renaissance Technologies
64
Renaissance Technologies
New York
$10.8M +$1.63M +44,900 +18%
Manulife (Manufacturers Life Insurance)
65
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$10.6M +$2.78M +76,787 +35%
Macquarie Group
66
Macquarie Group
Australia
$10.3M +$21.2K +586 +0.2%
Schroder Investment Management Group
67
Schroder Investment Management Group
United Kingdom
$10M -$4.23M -111,876 -30%
TI
68
Trexquant Investment
Connecticut
$9.73M +$4.06M +112,010 +72%
WP
69
Woodline Partners
California
$9.72M -$39.6K -1,094 -0.4%
SFM
70
Sphera Funds Management
Israel
$9.68M +$1.4M +38,609 +17%
Legal & General Group
71
Legal & General Group
United Kingdom
$9.38M +$5.8M +160,235 +162%
Citadel Advisors
72
Citadel Advisors
Florida
$9.29M -$1.07M -29,630 -10%
PFM
73
Privium Fund Management
Netherlands
$9.05M -$311K -8,576 -3%
MCM
74
Moore Capital Management
New York
$8.69M -$181K -5,000 -2%
SG Americas Securities
75
SG Americas Securities
New York
$8.6M +$8.25M +227,908 +2,358%
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