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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 %
PHK
176
Point72 Hong Kong
Hong Kong
$630K -$561K -15,419 -47%
ORI
177
Oak Ridge Investments
Illinois
$614K -$31.3K -862 -5%
FRM
178
Fox Run Management
Connecticut
$607K +$607K +16,689 New
PA
179
Profund Advisors
Maryland
$588K -$51.4K -1,414 -8%
SAM
180
Simplify Asset Management
Nevada
$553K -$61.4K -1,690 -10%
P8IP
181
Pier 88 Investment Partners
California
$536K -$278K -7,640 -34%
DnB Asset Management
182
DnB Asset Management
Norway
$535K +$16.4K +452 +3%
DS
183
DRW Securities
Illinois
$532K +$532K +14,619 New
First Trust Advisors
184
First Trust Advisors
Illinois
$509K -$91.5K -2,517 -15%
QC
185
Quadrature Capital
United Kingdom
$507K +$507K +13,944 New
WC
186
Woodstock Corp
Massachusetts
$483K -$21.2K -584 -4%
X
187
Xponance
Pennsylvania
$476K +$19.5K +536 +4%
PCM
188
Prelude Capital Management
New York
$461K +$461K +12,681 New
TI
189
Tidal Investments
Wisconsin
$458K +$20.5K +564 +5%
Creative Planning
190
Creative Planning
Kansas
$454K +$454K +12,493 New
PAP
191
Persistent Asset Partners
Hong Kong
$452K +$452K +12,437 New
HT
192
Headlands Technologies
Illinois
$436K +$377K +10,360 +638%
VF
193
Virtu Financial
New York
$430K +$430K +11,817 New
GLA
194
Great Lakes Advisors
Illinois
$430K -$54.1K -1,489 -11%
BFM
195
Boothbay Fund Management
New York
$418K -$1.97M -54,161 -82%
ET
196
Entropy Technologies
New York
$412K +$138K +3,787 +50%
VIA
197
Virtus Investment Advisers
Connecticut
$411K +$133K +3,656 +48%
TC
198
TwinBeech Capital
New York
$392K -$3.08M -84,615 -89%
EC
199
EntryPoint Capital
New York
$385K -$14.8K -407 -4%
Vontobel Holding
200
Vontobel Holding
Switzerland
$380K +$380K +10,464 New
6 7
8
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