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

Top Sellers

1
Adage Capital Partners
1
Adage Capital Partners
Massachusetts
$55.6M
2
Wellington Management Group
2
Wellington Management Group
Massachusetts
$68.1M
3
ACA
3
Avoro Capital Advisors
New York
$12M
4
VPC
4
Vestal Point Capital
New York
$0
5
Invesco
5
Invesco
Georgia
$26.3M
Name Holding Trade Value Shares
Change 		Shares
Change %
AWM
301
Activest Wealth Management
Florida
$291 +$291 +8 New
KG
302
Kilter Group
New York
$291 +$291 +8 New
PWM
303
Parkworth Wealth Management
California
$255 +$255 +7 New
CH
304
Cromwell Holdings
Wyoming
$255 +$255 +7 New
TPWA
305
Twin Peaks Wealth Advisors
California
$84 +$84 +3 New
PWA
306
Principia Wealth Advisory
Texas
$73 +$73 +2 New
SC
307
Stephens Consulting
Michigan
$37 +$37 +1 New
VPC
308
Vestal Point Capital
New York
– -$18.1M -500,000 Closed
CCM
309
Cutter Capital Management
New York
– -$13.7M -379,303 Closed
SG Americas Securities
310
SG Americas Securities
New York
– -$8.6M -237,573 Closed
IC
311
Ikarian Capital
Texas
– -$7.86M -216,989 Closed
GIP
312
Granite Investment Partners
California
– -$7.85M -216,883 Closed
Principal Financial Group
313
Principal Financial Group
Iowa
– -$3.19M -88,068 Closed
DFO
314
Duquesne Family Office
New York
– -$3.09M -85,445 Closed
GCP
315
GSA Capital Partners
United Kingdom
– -$1.57M -43,274 Closed
NIG
316
NFJ Investment Group
Texas
– -$1.36M -37,667 Closed
Simplex Trading
317
Simplex Trading
Illinois
– -$868K -23,991 Closed
SC
318
SummitTX Capital
Texas
– -$727K -20,085 Closed
BCM
319
Bayesian Capital Management
New York
– -$499K -13,783 Closed
HS
320
HighVista Strategies
Massachusetts
– -$483K -13,328 Closed
IIM
321
INTECH Investment Management
Florida
– -$465K -12,839 Closed
I
322
InceptionR
California
– -$464K -12,803 Closed
AC
323
AXQ Capital
New Jersey
– -$447K -12,346 Closed
MF
324
Magnetar Financial
Illinois
– -$404K -11,147 Closed
BC
325
Bayforest Capital
United Kingdom
– -$333K -9,190 Closed
10 11 12
13
14