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Arthur J. Gallagher & Co

1,313 hedge funds and large institutions have $69.5B invested in Arthur J. Gallagher & Co in 2025 Q3 according to their latest regulatory filings, with 114 funds opening new positions, 501 increasing their positions, 477 reducing their positions, and 135 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:

4% less funds holding

Funds holding: 1,3641,313 (-51)

16% less first-time investments, than exits

New positions opened: 114 | Existing positions closed: 135

30% less funds holding in top 10

Funds holding in top 10: 3726 (-11)

Holders
1,313
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
RPI
1326
Railway Pension Investments
United Kingdom
Hudson Bay Capital Management
1327
Hudson Bay Capital Management
Connecticut
CI
1328
Cooper Investors
Australia
PCH
1329
Polar Capital Holdings
United Kingdom
DWA
1330
Dorsey Wright & Associates
California
CLGM
1331
Capitolis Liquid Global Markets
New York
MCM
1332
Marsico Capital Management
Colorado
GC
1333
Gillson Capital
Illinois
SCM
1334
Silvant Capital Management
Georgia
TPSF
1335
Texas Permanent School Fund
Texas
SBH
1336
Segall Bryant & Hamill
Illinois
QT
1337
Quantbot Technologies
New York
TSS
1338
Two Sigma Securities
New York
TPM
1339
Triasima Portfolio Management
Quebec, Canada
OQS
1340
Occudo Quantitative Strategies
Florida
YIH
1341
Y-Intercept (HK)
Hong Kong
ACM
1342
AlphaStar Capital Management
North Carolina
Parallax Volatility Advisers
1343
Parallax Volatility Advisers
California
WG
1344
Winton Group
United Kingdom
IFU
1345
iSAM Funds (UK)
United Kingdom
DFCM
1346
Dark Forest Capital Management
Puerto Rico
Two Sigma Advisers
1347
Two Sigma Advisers
New York
Qube Research & Technologies (QRT)
1348
Qube Research & Technologies (QRT)
United Kingdom
SGI
1349
Summit Global Investments
Utah
DAS
1350
DMKC Advisory Services
Iowa