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Arthur J. Gallagher & Co.

AJG
Exchange
NYSE
Industry
Insurance Agents, Brokers & Service
SEC CIK
0000354190

In the last 90 days, Arthur J. Gallagher & Co. insiders filed 0 open-market purchases and 4 sales; 1,295 institutions reported holding it in 13F filings for Q2 2026, worth $54.7B in total; no superinvestor holds it.

13F holders, Q3 2025

Institutional positions in Arthur J. Gallagher & Co. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
1,341
−21 vs. Q2 2025
Shares held
225.4M
+2.22M (+1.0%) vs. Q2 2025
Total value
$69.7B
−$1.65B (−2.3%) vs. Q2 2025
New holders
115
511 more added
Sold out
136
487 more reduced

17 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting AJG on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 1,341 institutions
Q1 2021: 732 institutionsQ2 2021: 779 institutionsQ3 2021: 775 institutionsQ4 2021: 854 institutionsQ1 2022: 817 institutionsQ2 2022: 823 institutionsQ3 2022: 865 institutionsQ4 2022: 921 institutionsQ1 2023: 951 institutionsQ2 2023: 976 institutionsQ3 2023: 999 institutionsQ4 2023: 1,082 institutionsQ1 2024: 1,130 institutionsQ2 2024: 1,153 institutionsQ3 2024: 1,203 institutionsQ4 2024: 1,325 institutionsQ1 2025: 1,359 institutionsQ2 2025: 1,379 institutionsQ3 2025: 1,341 institutionsQ4 2025: 1,299 institutionsQ1 2026: 1,248 institutionsQ2 2026: 1,295 institutions
Value heldQ3 2025: $69.7B
Q1 2021: $20.6BQ2 2021: $24.6BQ3 2021: $26.3BQ4 2021: $30.1BQ1 2022: $31.0BQ2 2022: $29.1BQ3 2022: $31.2BQ4 2022: $34.1BQ1 2023: $34.7BQ2 2023: $39.9BQ3 2023: $42.3BQ4 2023: $41.9BQ1 2024: $46.5BQ2 2024: $49.1BQ3 2024: $52.8BQ4 2024: $65.9BQ1 2025: $79.0BQ2 2025: $72.9BQ3 2025: $69.7BQ4 2025: $60.6BQ1 2026: $49.7BQ2 2026: $54.7B
Institutions holding AJG and their total value by quarter
QuarterHoldersValue
Q2 20261,295$54.7B
Q1 20261,248$49.7B
Q4 20251,299$60.6B
Q3 20251,341$69.7B
Q2 20251,379$72.9B
Q1 20251,359$79.0B
Q4 20241,325$65.9B
Q3 20241,203$52.8B
Q2 20241,153$49.1B
Q1 20241,130$46.5B
Q4 20231,082$41.9B
Q3 2023999$42.3B
Q2 2023976$39.9B
Q1 2023951$34.7B
Q4 2022921$34.1B
Q3 2022865$31.2B
Q2 2022823$29.1B
Q1 2022817$31.0B
Q4 2021854$30.1B
Q3 2021775$26.3B
Q2 2021779$24.6B
Q1 2021732$20.6B

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Arthur J. Gallagher & Co.; share changes are against Q2 2025.

Institutions holding AJG in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Financiere des Professionnels - Fonds d,investissement inc.0$00.00%−1,944−100.0%Sold out
Financial Advocates Investment Management0$00.00%−1,716−100.0%Sold out
ClearAlpha Technologies LP0$00.00%−1,715−100.0%Sold out
Proficio Capital Partners LLC0$00.00%−1,584−100.0%Sold out
Wrapmanager Inc0$00.00%−1,547−100.0%Sold out
SMART Wealth LLC0$00.00%−1,489−100.0%Sold out
ICONIQ Capital, LLC0$00.00%−1,466−100.0%Sold out
Qtron Investments LLC0$00.00%−1,432−100.0%Sold out
Eqis Capital Management, Inc.0$00.00%−1,358−100.0%Sold out
New Century Financial Group, LLC0$00.00%−1,308−100.0%Sold out
Brown Miller Wealth Management, LLC0$00.00%−1,307−100.0%Sold out
Armistice Capital, LLC0$00.00%−1,286−100.0%Sold out
Gsa Capital Partners LLP0$00.00%−1,268−100.0%Sold out
Alpine Global Management, LLC0$00.00%−1,187−100.0%Sold out
MQS Management LLC0$00.00%−1,161−100.0%Sold out
Legacy Capital Group California, Inc.0$00.00%−1,161−100.0%Sold out
Challenger Wealth Management0$00.00%−1,152−100.0%Sold out
Coyle Financial Counsel LLC0$00.00%−1,144−100.0%Sold out
Schonfeld Strategic Advisors LLC0$00.00%−1,126−100.0%Sold out
Compton Wealth Advisory Group, LLC0$00.00%−1,109−100.0%Sold out
Prossimo Advisors, LLC0$00.00%−1,080−100.0%Sold out
Vicus Capital0$00.00%−1,055−100.0%Sold out
Consolidated Planning Corp0$00.00%−1,026−100.0%Sold out
Consolidated Portfolio Review Corp0$00.00%−999−100.0%Sold out
Icon Wealth Advisors, LLC0$00.00%−984−100.0%Sold out
Longboard Asset Management, LP0$00.00%−924−100.0%Sold out
Kaizen Financial Strategies0$00.00%−915−100.0%Sold out
111 Capital0$00.00%−910−100.0%Sold out
Hibernia Wealth Partners, LLC0$00.00%−892−100.0%Sold out
Klingman & Associates, LLC0$00.00%−891−100.0%Sold out
Whipplewood Advisors, LLC0$00.00%−824−100.0%Sold out
Maven Securities LTD0$00.00%−814−100.0%Sold out
Advyzon Investment Management, LLC0$00.00%−788−100.0%Sold out
MBB Public Markets I LLC0$00.00%−782−100.0%Sold out
McAdam, LLC0$00.00%−778−100.0%Sold out
Voya Financial Advisors, Inc.0$00.00%−771−100.0%Sold out
Diversify Advisory Services, LLC0$00.00%−835−100.0%Sold out
Accredited Investors Inc.0$00.00%−752−100.0%Sold out
Armis Advisers, LLC0$00.00%−749−100.0%Sold out
Daymark Wealth Partners, LLC0$00.00%−735−100.0%Sold out
TradeLink Capital LLC0$00.00%−700−100.0%Sold out
Mechanics Bank Trust Department0$00.00%−660−100.0%Sold out
Elm3 Financial Group, LLC0$00.00%−658−100.0%Sold out
Avidian Wealth Solutions, LLC0$00.00%−654−100.0%Sold out
Garda Capital Partners LP0$00.00%−643−100.0%Sold out
Phoenix Holdings Ltd.0$00.00%−640−100.0%Sold out
Ironwood Investment Counsel, LLC0$00.00%−638−100.0%Sold out
Burton Enright Welch0$00.00%−627−100.0%Sold out
Foster Group, Inc.0$00.00%−625−100.0%Sold out
CarsonAllaria Wealth Management, Ltd.0$00.00%−501−100.0%Sold out
Opal Wealth Advisors, LLC0$00.00%−393−100.0%Sold out
Quarry LP0$00.00%−393−100.0%Sold out
Beacon Capital Management, LLC0$00.00%−286−100.0%Sold out
Hoese & Co LLP0$00.00%−200−100.0%Sold out
Bayforest Capital Ltd0$00.00%−170−100.0%Sold out
Kestra Investment Management, LLC0$00.00%−157−100.0%Sold out
Intelligent Financial Strategies0$00.00%−154−100.0%Sold out
Security National Bank0$00.00%−145−100.0%Sold out
Washington Trust Advisors, Inc.0$00.00%−144−100.0%Sold out
Stephenson National Bank & Trust0$00.00%−124−100.0%Sold out
Twin Peaks Wealth Advisors, LLC0$00.00%−118−100.0%Sold out
BOK Financial Private Wealth, Inc.0$00.00%−31−100.0%Sold out
GFG Capital, LLC0$00.00%−31−100.0%Sold out
Briaud Financial Planning, Inc0$00.00%−30−100.0%Sold out
WealthTrak Capital Management LLC0$00.00%−26−100.0%Sold out
Godsey & Gibb Associates0$00.00%−20−100.0%Sold out
Clark Wealth Partners0$00.00%−14−100.0%Sold out
Riggs Asset Managment Co. Inc.0$00.00%−13−100.0%Sold out
Bellwether Advisors, LLC0$00.00%−12−100.0%Sold out
Silicon Valley Capital Partners0$00.00%−9−100.0%Sold out
Transce3nd, LLC0$00.00%−9−100.0%Sold out
Stephens Consulting, LLC0$00.00%−8−100.0%Sold out
HHM Wealth Advisors, LLC0$00.00%−7−100.0%Sold out
Total Investment Management Inc0$00.00%−4−100.0%Sold out
Carolina Wealth Advisors, LLC0$00.00%−4−100.0%Sold out
Wood Tarver Financial Group, LLC0$00.00%−6−100.0%Sold out
Maseco LLP0$00.00%−1−100.0%Sold out
Norges Bank––––Not filed
Congress Wealth Management LLC––––Not filed
CIBC World Markets Corp––––Not filed
Avantax Advisory Services, Inc.––––Not filed
Stonebridge Capital Management Inc––––Not filed
EP Wealth Advisors, LLC––––Not filed
Atria Wealth Solutions, Inc.––––Not filed
Forte Capital LLC––––Not filed
Graypoint LLC––––Not filed
IronOak Wealth LLC.––––Not filed
First Horizon Advisors, Inc.––––Not filed
J. W. Coons Advisors, LLC––––Not filed
Bingham Private Wealth, LLC––––Not filed
E Fund Management Co., Ltd.––––Not filed
Centricity Wealth Management, LLC––––Not filed
Vega Investment Solutions––––Not filed
Parkworth Wealth Management, Inc.––––Not filed