Arthur J. Gallagher

AJG • NYSE

Arthur J. Gallagher is a insurance - brokers company in the financial services sector on NYSE, led by J. Patrick Gallagher, Jr., with a market cap of $63.6B. As of Q3 2025, 87% of shares are held by 1,298 institutional investors, with VANGUARD GROUP INC as the largest holder at 12.16%.

Chairman of the Board and Chief Executive OfficerJ. Patrick Gallagher, Jr.

Market Cap$63.6B

Insurance - Brokers

Financial Services

Employees52.0K

Websiteajg.com

Country

United States of America

Overview

Overview of institutional ownership in AJG as of Q3 2025 with a market cap of $79.4B

All Institutions

Institutions: 1,298
Value Held: $69.5B
Shares Held: 224.5M
Avg Position: $53.5M
Median Position: $1.0M

Hedge Funds

Hedge Funds: 63
Value Held: $1.1B
Shares Held: 3.6M
Avg Position: $17.5M
Median Position: $2.7M

Ownership Breakdown

Institutional (non-HF)

86.08%

$68.4B

Hedge Funds

1.39%

$1.1B

Retail & Other

12.53%

$10.0B

Based on market cap of $79.4B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in AJG as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
VANGUARD GROUP INC Institution	Salim Ramji CEO	$9.7B 0.14% of portfolio	12.16% 31.2M shares	≤ Q2 2013 Held for 12y 5m+	$6.69T
JPMORGAN CHASE & CO Institution	Jamie Dimon CEO	$6.3B 0.40% of portfolio	7.93% 20.3M shares	≤ Q2 2013 Held for 12y 5m+	$1.56T
B BlackRock, Inc. Institution	-	$5.8B 0.10% of portfolio	7.24% 18.6M shares	≤ Q2 2013 Held for 12y 5m+	$5.67T
FMR LLC Institution	-	$3.9B 0.20% of portfolio	4.89% 12.5M shares	≤ Q2 2013 Held for 12y 5m+	$1.92T
C Capital World Investors Institution	-	$3.6B 0.50% of portfolio	4.60% 11.8M shares	Q3 2022 Held for 3y 2m	$730.00B
STATE STREET CORP Institution	Ronald P. O'Hanley CEO	$3.4B 0.12% of portfolio	4.25% 10.9M shares	≤ Q2 2013 Held for 12y 5m+	$2.88T
MORGAN STANLEY RIA/Wealth	Jed Finn CEO	$2.7B 0.16% of portfolio	3.35% 8.6M shares	≤ Q2 2013 Held for 12y 5m+	$1.65T
C Capital International Investors Institution	-	$2.2B 0.36% of portfolio	2.81% 7.2M shares	Q2 2020 Held for 5y 5m	$615.90B
GEODE CAPITAL MANAGEMENT LLC ETF Provider	David Kenneth Lane CEO	$1.9B 0.12% of portfolio	2.34% 6.0M shares	≤ Q2 2013 Held for 12y 5m+	$1.57T
WELLINGTON MANAGEMENT CO LLP Long Only Manager	Jean Marie Hynes CEO	$1.0B 0.18% of portfolio	1.28% 3.3M shares	Q2 2014 Held for 11y 5m	$571.21B

Net Capital Flow

Institutional buying and selling activity for AJG in Q3 2025

Traded: +$595.8M
Buyers: 615
Sellers: 600
Total Bought: +$4.6B
Total Sold: −$4.0B
Avg Position: $48.5M

Biggest Buyers

Institution	Net Bought	Current Position
JPMORGAN CHASE & CO Institution	+$1.0B +3.3M shares	$6.3B 20.3M shares
T T. Rowe Price Investment Management, Inc. Insurance Manager	+$773.1M +2.5M shares	$815.9M 2.6M shares
MORGAN STANLEY RIA/Wealth	+$462.5M +1.5M shares	$2.7B 8.6M shares
M Mitsubishi UFJ Asset Management Co., Ltd. Institution	+$224.7M +725.6K shares	$962.5M 3.1M shares
PRINCIPAL FINANCIAL GROUP INC Institution	+$183.8M +593.5K shares	$888.0M 2.9M shares
WELLINGTON MANAGEMENT CO LLP Long Only Manager	+$122.4M +395.3K shares	$1.0B 3.3M shares
Robeco Investment Management, Inc. Long Only Manager	+$91.3M +295.0K shares	$319.6M 1.0M shares
B BROWN ADVISORY INC RIA/Wealth	+$71.6M +231.1K shares	$779.9M 2.5M shares
A Allianz Asset Management AG Institution	+$59.6M +192.4K shares	$176.7M 570.6K shares
C CINCINNATI INSURANCE CO Institution	+$56.9M +183.7K shares	$56.9M 183.7K shares

Biggest Sellers

Institution	Net Sold	Current Position
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ Long Only Manager	−$434.1M −1.4M shares	$412.9M 1.3M shares
Winslow Capital Management, LLC Long Only Manager	−$265.2M −828.5K shares	Sold Off 0 shares
VIKING GLOBAL INVESTORS LP Hedge Fund•Long/Short	−$232.3M −725.8K shares	Sold Off 0 shares
Invesco Ltd. ETF Provider	−$219.0M −707.0K shares	$510.3M 1.6M shares
ING INVESTMENT MANAGEMENT LLC Insurance Manager	−$177.5M −572.9K shares	$42.3M 136.5K shares
FMR LLC Institution	−$164.3M −530.6K shares	$3.9B 12.5M shares
B BlackRock, Inc. Institution	−$129.8M −419.1K shares	$5.8B 18.6M shares
T TD ASSET MANAGEMENT INC Institution	−$122.3M −394.9K shares	$120.2M 388.1K shares
Woodline Partners LP Hedge Fund•Long/Short	−$116.4M −363.6K shares	Sold Off 0 shares
A Amundi Institution	−$107.4M −347.5K shares	$173.4M 560.9K shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited AJG in Q3 2025

New Positions: 56
New Value: $288.9M
Exited Positions: 133
Exited Value: $1.1B

New Positions

Institution	Position Value
C CINCINNATI INSURANCE CO Institution	$56.9M 183.7K shares
F Fiera Capital Corp Institution	$54.5M 175.9K shares
CINCINNATI FINANCIAL CORP Institution	$42.8M 138.3K shares
Sandhill Capital Partners LLC RIA/Wealth	$33.5M 108.3K shares
Visualize Group LP Hedge Fund•Multi-Strategy	$32.9M 106.3K shares
Bowie Capital Management, LLC Hedge Fund•Long/Short	$32.9M 106.2K shares
P Pelham Capital Ltd. Institution	$13.8M 44.7K shares
ARIEL INVESTMENTS, LLC Long Only Manager	$4.2M 13.6K shares
HOHIMER WEALTH MANAGEMENT, LLC RIA/Wealth	$2.5M 8.0K shares
M Manhattan West Asset Management, LLC RIA/Wealth	$2.1M 6.8K shares

Exited Positions

Institution	Previous Position
Winslow Capital Management, LLC Long Only Manager	$265.2M 828.5K shares
VIKING GLOBAL INVESTORS LP Hedge Fund•Long/Short	$232.3M 725.8K shares
Woodline Partners LP Hedge Fund•Long/Short	$116.4M 363.6K shares
A AXIOM INTERNATIONAL INVESTORS LLC /DE Long Only Manager	$63.3M 197.7K shares
L Laurel Wealth Advisors LLC RIA/Wealth	$44.9M 140.2K shares
Lighthouse Investment Partners, LLC Fund of Funds	$34.4M 107.5K shares
H HRT FINANCIAL LLC Institution	$33.6M 104.8K shares
Fortress Investment Group LLC RIA/Wealth	$32.0M 100.0K shares
T TWINBEECH CAPITAL LP Hedge Fund•Quant	$23.8M 74.3K shares
Weiss Asset Management LP Hedge Fund•Multi-Strategy	$23.4M 73.2K shares

Options Activity

Institutions with the largest Call and Put options positions in AJG as of Q3 2025

Call Positions: 20
Call Value: $213.2M
Put Positions: 21
Put Value: $98.8M

Call Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$66.5M 2.1K contracts
Oribel Capital Management, LP Hedge Fund•Long/Short	$34.3M 1.1K contracts
J JANE STREET GROUP, LLC Institution	$28.6M 922.0 contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$19.8M 639.0 contracts
W WOLVERINE TRADING, LLC Institution	$18.8M 614.0 contracts
Walleye Trading LLC RIA/Wealth	$16.7M 540.0 contracts
C Cubist Systematic Strategies, LLC Institution	$8.8M 284.0 contracts
BOOTHBAY FUND MANAGEMENT, LLC Fund of Funds	$6.5M 209.0 contracts
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	$4.4M 141.0 contracts
CAPITAL FUND MANAGEMENT S.A. Hedge Fund•Quant Macro	$3.3M 108.0 contracts

Put Positions

Institution	Position Value
Oribel Capital Management, LP Hedge Fund•Long/Short	$30.0M 969.0 contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$29.0M 935.0 contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$9.4M 302.0 contracts
BOOTHBAY FUND MANAGEMENT, LLC Fund of Funds	$5.6M 182.0 contracts
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	$4.8M 155.0 contracts
J JANE STREET GROUP, LLC Institution	$3.3M 107.0 contracts
BB&T CORP Institution	$3.1M 100.0 contracts
A Allianz Asset Management AG Institution	$3.0M 98.0 contracts
C Cubist Systematic Strategies, LLC Institution	$1.8M 59.0 contracts
S Squarepoint Ops LLC Hedge Fund•Quant	$1.8M 58.0 contracts

Most Committed Institutions

Institutions with AJG as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
Visualize Group LP Hedge Fund•Multi-Strategy	Chukudi Melvin Ike Managing Partner	11.03% $32.9M	0.04% 106.3K shares	Q3 2025 Held for 2 months	$298.6M
Newport Capital Group, LLC RIA/Wealth	Domenic Matthew Dipiero President	9.99% $15.9M	0.02% 51.3K shares	Q2 2024 Held for 1y 5m	$159.1M
D. SCOTT NEAL, INC. RIA/Wealth	David Scott Neal President	8.12% $17.6M	0.02% 56.7K shares	Q2 2023 Held for 2y 5m	$216.2M
P Pelham Capital Ltd. Institution	-	7.20% $13.8M	0.02% 44.7K shares	Q3 2025 Held for 2 months	$192.2M
Philo Smith Capital Corp Hedge Fund•Sector	James Earl Inglis President	6.72% $24.1M	0.03% 77.7K shares	Q3 2021 Held for 4y 2m	$358.4M
11 Capital Partners LP Hedge Fund•Long/Short	Jason Douglas Mcdougall CIO	5.88% $20.8M	0.03% 67.1K shares	Q3 2022 Held for 3y 2m	$353.1M
CHILTON INVESTMENT CO LLC Hedge Fund•Long/Short	Richard Lockwood Chilton CEO	4.84% $237.2M	0.30% 765.8K shares	Q3 2023 Held for 2y 2m	$4.9B
R Rench Wealth Management, Inc. Institution	-	4.58% $15.6M	0.02% 50.4K shares	Q4 2013 Held for 11y 11m	$340.8M
BECK MACK & OLIVER LLC Long Only Manager	Robert Childress Beck Managing Partner	4.27% $227.4M	0.29% 734.1K shares	≤ Q2 2013 Held for 12y 5m+	$5.3B
S Stonehage Fleming Financial Services Holdings Ltd Institution	-	4.06% $143.3M	0.18% 462.6K shares	Q3 2023 Held for 2y 2m	$3.5B

Hedge Fund Spotlight

Discover hedge funds investing in AJG

PANAGORA ASSET MANAGEMENT INC

Hedge Fund • Quant

Portfolio ManagerBryan David Belton

Portfolio Value: $24.8B
Positions: 1,146
Last Reported: Q3 2025

Sector Allocation

Position in Arthur J. Gallagher

Market Value: $3.7M
Shares Held: 11.8K
Portfolio Weight: 0.01%
Owned Since: 2013-Q2

Top Holding	Sector	Market Value	Weight
1 Nvidia NVDA	Semiconductors Technology	$1.9B	7.75%
2 Apple AAPL	Consumer Electronics Technology	$1.4B	5.65%
3 Microsoft MSFT	Software - Infrastructure Technology	$1.4B	5.45%