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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, Q4 2025

Institutional positions in Arthur J. Gallagher & Co. as of Dec 31, 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
1,299
−14 vs. Q3 2025
Shares held
234.2M
+9.18M (+4.1%) vs. Q3 2025
Total value
$60.6B
−$9.03B (−13.0%) vs. Q3 2025
New holders
159
393 more added
Sold out
173
566 more reduced

28 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2025: 1,299 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 heldQ4 2025: $60.6B
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, Q4 2025

Shares, value and share of portfolio for each institution holding Arthur J. Gallagher & Co.; share changes are against Q3 2025.

Institutions holding AJG in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Keeler & Nadler Financial Planning & Wealth Management0$00.00%−737−100.0%Sold out
Encompass More Asset Management0$00.00%−736−100.0%Sold out
Grandview Asset Management LLC0$00.00%−735−100.0%Sold out
Embree Financial Group0$00.00%−731−100.0%Sold out
Berkshire Bank0$00.00%−710−100.0%Sold out
Empirical Financial Services, LLC d.b.a. Empirical Wealth Management0$00.00%−708−100.0%Sold out
Essex Savings Bank0$00.00%−707−100.0%Sold out
Allen Mooney & Barnes Investment Advisors LLC0$00.00%−701−100.0%Sold out
Carlson Capital L P0$00.00%−700−100.0%Sold out
Banque Pictet & Cie SA0$00.00%−700−100.0%Sold out
Baader Bank INC0$00.00%−700−100.0%Sold out
Miracle Mile Advisors, LLC0$00.00%−699−100.0%Sold out
Sierra Ocean, LLC0$00.00%−697−100.0%Sold out
Cornerstone Wealth Management, LLC0$00.00%−695−100.0%Sold out
Essex Financial Services, Inc.0$00.00%−693−100.0%Sold out
Formidable Asset Management, LLC0$00.00%−669−100.0%Sold out
Fielder Capital Group LLC0$00.00%−690−100.0%Sold out
Relyea Zuckerberg Hanson LLC0$00.00%−686−100.0%Sold out
D'Orazio & Associates, Inc.0$00.00%−682−100.0%Sold out
Fragasso Group Inc.0$00.00%−679−100.0%Sold out
Kuhn & Co Investment Counsel0$00.00%−678−100.0%Sold out
von Borstel & Associates, Inc.0$00.00%−839−100.0%Sold out
GW Henssler & Associates Ltd0$00.00%−675−100.0%Sold out
BBR Partners, LLC0$00.00%−671−100.0%Sold out
Wealth Architects, LLC0$00.00%−671−100.0%Sold out
Wealth Alliance0$00.00%−665−100.0%Sold out
Golden State Equity Partners0$00.00%−663−100.0%Sold out
Diversified Trust Co0$00.00%−661−100.0%Sold out
Volterra Technologies LP0$00.00%−661−100.0%Sold out
Everhart Financial Group, Inc.0$00.00%−661−100.0%Sold out
Mengis Capital Management, Inc.0$00.00%−660−100.0%Sold out
Great Diamond Partners, LLC0$00.00%−660−100.0%Sold out
Fayez Sarofim & Co0$00.00%−659−100.0%Sold out
Signature Estate & Investment Advisors LLC0$00.00%−655−100.0%Sold out
Symphony Financial, Ltd. Co.0$00.00%−655−100.0%Sold out
FourThought Financial Partners, LLC0$00.00%−653−100.0%Sold out
JT Stratford LLC0$00.00%−652−100.0%Sold out
Paradigm Financial Partners, LLC0$00.00%−649−100.0%Sold out
Premier Path Wealth Partners, LLC0$00.00%−649−100.0%Sold out
Moss Adams Wealth Advisors LLC0$00.00%−648−100.0%Sold out
Chelsea Counsel Co0$00.00%−475−100.0%Sold out
TruNorth Capital Management, LLC0$00.00%−468−100.0%Sold out
Catalyst Capital Advisors LLC0$00.00%−434−100.0%Sold out
Grey Fox Wealth Advisors, LLC0$00.00%−418−100.0%Sold out
JPL Wealth Management, LLC0$00.00%−318−100.0%Sold out
Tortoise Investment Management, LLC0$00.00%−205−100.0%Sold out
TSFG, LLC0$00.00%−171−100.0%Sold out
Stuart Chaussee & Associates, Inc.0$00.00%−162−100.0%Sold out
Rise Advisors, LLC0$00.00%−157−100.0%Sold out
Financial Life Planners0$00.00%−125−100.0%Sold out
Centennial Bank0$00.00%−100−100.0%Sold out
Evergreen Private Wealth LLC0$00.00%−96−100.0%Sold out
Salem Investment Counselors Inc0$00.00%−79−100.0%Sold out
Painted Porch Advisors LLC0$00.00%−74−100.0%Sold out
Ameritas Advisory Services, LLC0$00.00%−58−100.0%Sold out
Keener Financial Planning LLC0$00.00%−49−100.0%Sold out
Activest Wealth Management0$00.00%−43−100.0%Sold out
Missouri Trust & Investment Co0$00.00%−37−100.0%Sold out
Quintet Private Bank (Europe) S.A.0$00.00%−30−100.0%Sold out
TD Capital Management LLC0$00.00%−28−100.0%Sold out
Palisade Asset Management, LLC0$00.00%−26−100.0%Sold out
Cloud Capital Management, LLC0$00.00%−23−100.0%Sold out
HighMark Wealth Management LLC0$00.00%−21−100.0%Sold out
Quest 10 Wealth Builders, Inc.0$00.00%−19−100.0%Sold out
Orion Capital Management LLC0$00.00%−7−100.0%Sold out
Harvest Fund Management Co., Ltd0$00.00%−8−100.0%Sold out
Strengthening Families & Communities, LLC0$00.00%−6−100.0%Sold out
Winnow Wealth LLC0$00.00%−6−100.0%Sold out
Core Alternative Capital0$00.00%−6−100.0%Sold out
Avalon Trust Co0$00.00%−4−100.0%Sold out
Hurley Capital, LLC0$00.00%−1−100.0%Sold out
Stone House Investment Management, LLC0$00.00%−1−100.0%Sold out
Sonora Investment Management Group, LLC––––Not filed
Bristlecone Advisors, LLC––––Not filed
D. Scott Neal, Inc.––––Not filed
CIBC Bancorp USA Inc.––––Not filed
Synovus Financial Corp––––Not filed
Glenmede Investment Management, LP––––Not filed
Wolverine Trading, LLC––––Not filed
Pinebridge Investments, L.P.––––Not filed
Court Place Advisors, LLC––––Not filed
Shell Asset Management Co––––Not filed
Promus Capital, LLC––––Not filed
Pinnacle Financial Partners Inc––––Not filed
Wetherby Asset Management Inc––––Not filed
Full Sail Capital, LLC––––Not filed
Country Club Bank––––Not filed
RiverGlades Family Offices LLC––––Not filed
Texas Capital Bancshares Inc––––Not filed
Oak Hill Wealth Advisors, LLC––––Not filed
Defined Financial Planning LLC––––Not filed
Fullcircle Wealth LLC––––Not filed
Eisler Capital Management Ltd.––––Not filed
Creekmur Asset Management LLC––––Not filed
Stonegate Investment Group, LLC––––Not filed
West Oak Capital, LLC––––Not filed
Binnacle Investments Inc––––Not filed
Hemington Wealth Management––––Not filed
Guerra Advisors Inc––––Not filed
Pineridge Advisors LLC––––Not filed