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argenx
ARGX

468 hedge funds and large institutions have $22.5B invested in argenx in 2025 Q3 according to their latest regulatory filings, with 91 funds opening new positions, 177 increasing their positions, 136 reducing their positions, and 57 closing their positions.

New
Increased
Maintained
Reduced
Closed

114% more call options, than puts

Call options by funds: $542M | Put options by funds: $253M

60% more first-time investments, than exits

New positions opened: 91 | Existing positions closed: 57

30% more repeat investments, than reductions

Existing positions increased: 177 | Existing positions reduced: 136

27% more capital invested

Capital invested by funds: $17.7B → $22.5B (+$4.81B)

7% more funds holding

Funds holding: 437 → 468 (+31)

2.73% less ownership

Funds ownership: 52.6% → 49.87% (-2.7%)

18% less funds holding in top 10

Funds holding in top 10: 17 → 14 (-3)

Holders
468
Holders Change
+31
Holders Change %
+7.09%
% of All Funds
6.14%
Holding in Top 10
14
Holding in Top 10 Change
-3
Holding in Top 10 Change %
-17.65%
% of All Funds
0.18%
New
91
Increased
177
Reduced
136
Closed
57
Calls
$542M
Puts
$253M
Net Calls
+$289M
Net Calls Change
+$139M

Top Buyers

Rank Fund Capital Flow
1
Wellington Management Group
Wellington Management Group
Massachusetts
+$214M
2
Fidelity Investments
Fidelity Investments
Massachusetts
+$177M
3
Two Sigma Investments
Two Sigma Investments
New York
+$165M
4
WP
Woodline Partners
California
+$85.2M
5
Two Sigma Advisers
Two Sigma Advisers
New York
+$82.9M

Top Sellers

Rank Fund Capital Flow
1
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
-$883M
2
Adage Capital Partners
Adage Capital Partners
Massachusetts
-$164M
3
ACA
Avoro Capital Advisors
New York
-$122M
4
Marshall Wace
Marshall Wace
United Kingdom
-$109M
5
Artisan Partners
Artisan Partners
Wisconsin
-$108M
Name Holding Trade Value Shares
Change 		Change in
Stake
AA
426
Addison Advisors
Vermont
$5.16K +$1.32K +2 +40%
EP
427
Essential Partners
California
$5.16K +$4.62K +7 New
NS
428
NBC Securities
Alabama
$5.16K +$659 +1 +17%
BIA
429
Bell Investment Advisors
California
$4.43K +$659 +1 +20%
FCAS
430
First Command Advisory Services
Texas
$4.42K – – –
PPC
431
Park Place Capital
Alabama
$4.42K – – –
PWMG
432
Prestige Wealth Management Group
New Jersey
$3.69K – – –
ZBNA
433
Zions Bancorporation, National Association
Utah
$3.69K – – –
CFD
434
Creative Financial Designs
Indiana
$3.69K +$659 +1 +25%
MSWA
435
Marshall & Sterling Wealth Advisors
New York
$3.69K +$659 +1 +25%
RFP
436
Root Financial Partners
California
$3.69K +$3.3K +5 New
WANY
437
Wealthspire Advisors (New York)
New York
$3.69K +$3.3K +5 New
MA
438
Montag & Associates
Georgia
$2.95K +$2.64K +4 New
AA
439
Ancora Advisors
Ohio
$2.95K – – –
BI
440
Binnacle Investments
Iowa
$2.95K – – –
HI
441
Harbour Investments
Wisconsin
$2.95K +$1.32K +2 +100%
PMFA
442
Plante Moran Financial Advisors
Michigan
$2.95K +$2.64K +4 New
BWL
443
Bogart Wealth LLC
Virginia
$2.21K – – –
BGAI
444
Bruce G. Allen Investments
Colorado
$2.21K – – –
CFO
445
CVA Family Office
Colorado
$2.21K – – –
FFO
446
Fortitude Family Office
Arizona
$2.21K – – –
SIC
447
Salem Investment Counselors
North Carolina
$2.21K – – –
PWA
448
Principia Wealth Advisory
Texas
$2.21K +$1.32K +2 +200%
BHWM
449
Beaird Harris Wealth Management
Texas
$1.77K +$659 +1 +100%
BLC
450
Brown, Lisle/Cummings
Rhode Island
$1.48K – – –
16 17
18
19 20

ARGX Hedge Fund Activity: Q3 2025 in Review

468 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in argenx (ARGX) for Q3 2025, worth a combined $22.5B — up 27% from $17.7B a quarter earlier.

Buyers outnumbered sellers: 91 funds opened new ARGX positions and 57 closed out — a net gain of 34 holders — while 177 added to existing stakes and 136 trimmed.

The largest buyer was Wellington Management Group, adding an estimated $214M. The largest seller was T. Rowe Price Associates, cutting an estimated $883M.

  • 468 institutional investors held argenx (ARGX) as of Q3 2025, up from 437 in Q2 2025.
  • Funds reported $22.5B of argenx stock for Q3 2025, up 27% quarter-over-quarter.
  • 91 funds opened new argenx positions in Q3 2025 and 57 closed out, a net change of +34 holders.
  • The largest argenx buyer in Q3 2025 was Wellington Management Group, an estimated $214M added.
  • The largest argenx seller in Q3 2025 was T. Rowe Price Associates, an estimated $883M sold.

Based on aggregated 13F filings for Q3 2025.