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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
1,342
−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
488 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: 1,342 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: 1,360 institutionsQ2 2025: 1,380 institutionsQ3 2025: 1,342 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 20251,342$69.7B
Q2 20251,380$72.9B
Q1 20251,360$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
Loomis Sayles & Co L P0$530.00%0Unchanged
Y.D. More Investments Ltd204$1910.00%00.0%Unchanged
Hurley Capital, LLC1$3100.00%+1New
Stone House Investment Management, LLC1$3100.00%+1New
Hughes Financial Services, LLC2$5020.00%−10−83.3%Reduced
DecisionPoint Financial, LLC2$6120.00%00.0%Unchanged
IMA Wealth, Inc.2$6190.00%00.0%Unchanged
E Fund Management (Hong Kong) Co., Ltd.2$6190.00%+2New
Davis Capital Management2$6190.00%+2New
Seneschal Advisors, LLC2$6200.00%+2New
Essential Partners LLC2$6230.00%+2New
Newbridge Financial Services Group, Inc.3$9290.00%00.0%Unchanged
American Capital Advisory, LLC3$9300.00%−2−40.0%Reduced
Redwood Park Advisors LLC3$9300.00%00.0%Unchanged
Coston, McIsaac & Partners4$1.00K0.00%+4New
Quaker Wealth Management, LLC4$1.24K0.00%−2−33.3%Reduced
Delos Wealth Advisors, LLC4$1.24K0.00%00.0%Unchanged
HFM Investment Advisors, LLC4$1.24K0.00%00.0%Unchanged
Avalon Trust Co4$1.24K0.00%+4New
PFS Partners, LLC4$1.24K0.00%+4New
Longfellow Investment Management Co LLC6$1.86K0.00%00.0%Unchanged
WestEnd Advisors, LLC6$1.86K0.00%00.0%Unchanged
First Command Advisory Services, Inc.6$1.86K0.00%00.0%Unchanged
Core Alternative Capital6$1.86K0.00%00.0%Unchanged
TFC Financial Management6$1.86K0.00%00.0%Unchanged
Winnow Wealth LLC6$1.86K0.00%+6New
Strengthening Families & Communities, LLC6$1.86K0.00%+6New
Harvest Fund Management Co., Ltd8$2.00K0.00%00.0%Unchanged
Orion Capital Management LLC7$2.17K0.00%00.0%Unchanged
Provenance Wealth Advisors, LLC7$2.17K0.00%00.0%Unchanged
Wealth Preservation Advisors, LLC7$2.17K0.00%+2+40.0%Added
Bellevue Asset Management, LLC8$2.48K0.00%+2+33.3%Added
True Wealth Design, LLC10$2.99K0.00%−1−9.1%Reduced
Evelyn Partners Investment Management LLP10$3.10K0.00%00.0%Unchanged
Breakwater Investment Management10$3.10K0.00%+10New
Bay Harbor Wealth Management, LLC11$3.41K0.00%+3+37.5%Added
Principia Wealth Advisory, LLC12$3.72K0.00%−2−14.3%Reduced
C M Bidwell & Associates Ltd12$3.72K0.00%00.0%Unchanged
MPWM Advisory Solutions, LLC12$3.72K0.00%00.0%Unchanged
Albion Financial Group13$4.03K0.00%00.0%Unchanged
Cranbrook Wealth Management, LLC13$4.03K0.00%00.0%Unchanged
Team Financial Group, LLC15$4.52K0.00%00.0%Unchanged
Sound Income Strategies, LLC15$4.53K0.00%00.0%Unchanged
Redmont Wealth Advisors LLC15$4.65K0.01%00.0%Unchanged
Valued Wealth Advisors LLC16$4.99K0.00%00.0%Unchanged
IMG Wealth Management, Inc.17$5.27K0.00%00.0%Unchanged
Tidemark, LLC18$5.58K0.00%00.0%Unchanged
Quest 10 Wealth Builders, Inc.19$5.88K0.01%+19New
Brown, Lisle/Cummings, Inc.20$6.20K0.00%00.0%Unchanged
Dogwood Wealth Management LLC20$6.20K0.00%+2+11.1%Added
Nalls Sherbakoff Group, LLC20$6.25K0.00%00.0%Unchanged
Bare Financial Services, Inc21$6.50K0.00%−3−12.5%Reduced
HighMark Wealth Management LLC21$6.50K0.00%00.0%Unchanged
Thurston, Springer, Miller, Herd & Titak, Inc.22$6.81K0.01%−318−93.5%Reduced
Alerus Financial NA22$6.81K0.00%−26−54.2%Reduced
Cloud Capital Management, LLC23$7.00K0.00%+23New
Private Wealth Management Group, LLC23$7.13K0.00%00.0%Unchanged
Cape Investment Advisory, Inc.24$7.43K0.01%+16+200.0%Added
Pineridge Advisors LLC25$7.83K0.00%00.0%Unchanged
Aspect Partners, LLC26$8.05K0.00%+6+30.0%Added
Palisade Asset Management, LLC26$8.05K0.00%+26New
Highline Wealth Partners LLC27$8.36K0.00%−30−52.6%Reduced
Marquette Asset Management, LLC27$8.36K0.00%+27New
TD Capital Management LLC28$8.73K0.00%00.0%Unchanged
Hanson & Doremus Investment Management29$9.00K0.00%+29New
Quintet Private Bank (Europe) S.A.30$9.29K0.00%00.0%Unchanged
Aventus Investment Advisors, Inc.30$9.29K0.01%00.0%Unchanged
Armstrong Advisory Group, Inc32$9.91K0.00%00.0%Unchanged
Greykasell Wealth Strategies, Inc.32$9.91K0.00%00.0%Unchanged
Raffa Wealth Management, LLC32$9.91K0.00%+6+23.1%Added
Avion Wealth33$10.0K0.00%+4+13.8%Added
Crewe Advisors LLC33$10.1K0.00%−6−15.4%Reduced
Cetera Trust Company, N.A34$10.5K0.01%00.0%Unchanged
Sachetta, LLC34$10.5K0.00%+3+9.7%Added
Fortitude Family Office, LLC35$10.8K0.00%+7+25.0%Added
Creative Financial Designs Inc35$10.8K0.00%+33+1,650.0%Added
Addison Advisors LLC36$11.2K0.00%−7−16.3%Reduced
Bell Investment Advisors, Inc36$11.2K0.00%+2+5.9%Added
Missouri Trust & Investment Co37$11.5K0.00%−9−19.6%Reduced
Capital Advisors, Ltd. LLC38$12.0K0.00%+19+100.0%Added
Kilter Group LLC39$12.1K0.01%+2+5.4%Added
Abound Wealth Management39$12.2K0.00%−3−7.1%Reduced
LGT Financial Advisors LLC40$12.5K0.03%+4+11.1%Added
Rossby Financial, LCC41$12.5K0.00%00.0%Unchanged
Activest Wealth Management43$13.3K0.00%−13−23.2%Reduced
MTM Investment Management, LLC45$13.9K0.00%00.0%Unchanged
Capital Analysts, LLC47$14.0K0.00%00.0%Unchanged
Financial Management Professionals, Inc.46$14.2K0.00%−10−17.9%Reduced
Guerra Advisors Inc47$14.6K0.01%+47New
Evolution Wealth Management Inc.48$14.9K0.02%00.0%Unchanged
Keener Financial Planning LLC49$15.0K0.01%00.0%Unchanged
West Financial Advisors, LLC48$15.0K0.00%+4+9.1%Added
Westfuller Advisors, LLC50$15.3K0.01%+50New
Park Square Financial Group, LLC50$15.5K0.07%−13−20.6%Reduced
Horizon Financial Services, LLC53$16.4K0.01%+41+341.7%Added
Howard Hughes Medical Institute55$17.0K0.01%+1+1.9%Added
Ameritas Advisory Services, LLC58$18.0K0.00%−685−92.2%Reduced
Hazlett, Burt & Watson, Inc.60$18.0K0.01%+13+27.7%Added
Meeder Asset Management Inc59$18.3K0.00%−105−64.0%Reduced
Atlantic Trust, LLC62$19.2K0.00%00.0%Unchanged