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argenx
ARGX

Overview Fund Activity

433 hedge funds and large institutions have $17.7B invested in argenx in 2025 Q2 according to their latest regulatory filings, with 54 funds opening new positions, 177 increasing their positions, 145 reducing their positions, and 60 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
433
Holders Change
-9
Holders Change %
-2.04%
% of All Funds
5.81%
Holding in Top 10
17
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-5.56%
% of All Funds
0.23%
New
54
Increased
177
Reduced
145
Closed
60
Calls
$270M
Puts
$120M
Net Calls
+$151M
Net Calls Change
+$5.36M

Top Buyers

1
Janus Henderson Group
Janus Henderson Group
United Kingdom
$1.41B
2
Citadel Advisors
Citadel Advisors
Florida
$477M
3
Millennium Management
Millennium Management
New York
$237M
4
Adage Capital Partners
Adage Capital Partners
Massachusetts
$164M
5
Franklin Resources
Franklin Resources
California
$154M

Top Sellers

1
BlackRock
BlackRock
New York
$303M
2
Morgan Stanley
Morgan Stanley
New York
$237M
3
Artisan Partners
Artisan Partners
Wisconsin
$1.3B
4
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
$2.75B
5
Fidelity Investments
Fidelity Investments
Massachusetts
$2.99B
Name Holding Trade Value Shares
Change 		Shares
Change %
BHWM
426
Beaird Harris Wealth Management
Texas
$772 +$772 +1 New
PEAK6
427
PEAK6
Illinois
$710 -$710 -1 -50%
AWM
428
Abound Wealth Management
Tennessee
$552 – – –
KG
429
Kilter Group
New York
$552 +$552 +1 New
AF
430
Advisornet Financial
Minnesota
$551 -$2.2K -4 -80%
PWA
431
Principia Wealth Advisory
Texas
$551 +$551 +1 New
SL
432
Salomon & Ludwin
Virginia
$545 +$545 +1 New
PBA
433
Paradigm Biocapital Advisors
New York
– -$35.3M -59,679 Closed
PA
434
Perceptive Advisors
New York
– -$35.2M -59,510 Closed
AM
435
AGF Management
Ontario, Canada
– -$10.7M -18,159 Closed
OMC
436
Old Mission Capital
Illinois
– -$8.86M -14,977 Closed
ZP
437
Zimmer Partners
New York
– -$8.17M -13,800 Closed
HCM
438
Harvey Capital Management
Florida
– -$6.55M -11,075 Closed
ACM
439
Aquatic Capital Management
Illinois
– -$4.45M -7,512 Closed
EFM
440
E Fund Management
China
– -$3.43M -5,800 Closed
XT
441
XTX Topco
Cayman Islands
– -$3.28M -5,543 Closed
OAC
442
OMERS Administration Corp
Ontario, Canada
– -$2.9M -4,900 Closed
PC
443
Panoramic Capital
California
– -$2.37M -4,000 Closed
JGC
444
J. Goldman & Co
New York
– -$1.18M -2,000 Closed
SMH
445
Sanders Morris Harris
Texas
– -$1.04M -1,830 Closed
FAM
446
Fred Alger Management
New York
– -$1.07M -1,810 Closed
TFS
447
Thoroughbred Financial Services
Tennessee
– -$1.05M -1,779 Closed
SSG
448
Summit Securities Group
New York
– -$888K -1,501 Closed
FC
449
FORA Capital
Florida
– -$872K -1,473 Closed
SFAM
450
Springhill Fund Asset Management
Hong Kong
– -$678K -1,146 Closed
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