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Arthur J. Gallagher & Co

1,322 hedge funds and large institutions have $69.6B invested in Arthur J. Gallagher & Co in 2025 Q3 according to their latest regulatory filings, with 112 funds opening new positions, 503 increasing their positions, 484 reducing their positions, and 136 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less capital invested

Capital invested by funds: $ → $

less ownership

Funds ownership:

3% less funds holding

Funds holding: 1,3681,322 (-46)

18% less first-time investments, than exits

New positions opened: 112 | Existing positions closed: 136

30% less funds holding in top 10

Funds holding in top 10: 3726 (-11)

Holders
1,322
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
26
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$242M
Puts
$113M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
Viking Global Investors
1326
Viking Global Investors
Connecticut
WP
1327
Woodline Partners
California
AI
1328
Axiom Investors
Connecticut
LIP
1329
Lighthouse Investment Partners
Florida
HF
1330
HRT Financial
New York
FIG
1331
Fortress Investment Group
New York
TC
1332
TwinBeech Capital
New York
WAM
1333
Weiss Asset Management
Massachusetts
KCM
1334
Kingdon Capital Management
New York
RPI
1335
Railway Pension Investments
United Kingdom
Hudson Bay Capital Management
1336
Hudson Bay Capital Management
Connecticut
CI
1337
Cooper Investors
Australia
PCH
1338
Polar Capital Holdings
United Kingdom
DWA
1339
Dorsey Wright & Associates
California
CLGM
1340
Capitolis Liquid Global Markets
New York
MCM
1341
Marsico Capital Management
Colorado
GC
1342
Gillson Capital
Illinois
SCM
1343
Silvant Capital Management
Georgia
TPSF
1344
Texas Permanent School Fund
Texas
SBH
1345
Segall Bryant & Hamill
Illinois
QT
1346
Quantbot Technologies
New York
TSS
1347
Two Sigma Securities
New York
TPM
1348
Triasima Portfolio Management
Quebec, Canada
OQS
1349
Occudo Quantitative Strategies
Florida
YIH
1350
Y-Intercept (HK)
Hong Kong