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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: 1,342 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
BancorpSouth Bank1,108$343.2K0.02%+6+0.5%Added
Excalibur Management Corp1,109$343.6K0.12%00.0%Unchanged
Burns Matteson Capital Management, LLC1,111$344.1K0.14%−668−37.5%Reduced
VisionPoint Advisory Group, LLC1,113$344.8K0.07%−122−9.9%Reduced
Green Harvest Asset Management LLC1,115$345.4K0.01%+4+0.4%Added
HBK Sorce Advisory LLC1,173$347.4K0.01%+31+2.7%Added
PDS Planning, Inc1,122$347.5K0.02%+32+2.9%Added
KCM Investment Advisors LLC1,127$349.1K0.01%+44+4.1%Added
CWA Asset Management Group, LLC1,128$349.4K0.01%00.0%Unchanged
Tucker Asset Management LLC1,131$350.3K0.11%−21−1.8%Reduced
Meyer Handelman Co1,131$350.3K0.01%+1,131New
Strategic Investment Advisors1,142$353.6K0.03%+1,142New
Boston Family Office LLC1,150$356.0K0.02%00.0%Unchanged
Wrenne Financial Planning LLC1,155$357.8K0.15%−13−1.1%Reduced
Oak Hill Wealth Advisors, LLC1,159$359.0K0.07%00.0%Unchanged
Prosperity Wealth Management, Inc.1,163$360.2K0.12%+1,163New
Lifestyle Asset Management, Inc.1,166$361.2K0.12%+93+8.7%Added
San Luis Wealth Advisors LLC1,171$362.6K0.07%+32+2.8%Added
Moran Wealth Management, LLC1,184$366.7K0.01%+165+16.2%Added
Wilkins Investment Counsel Inc1,185$367.0K0.05%00.0%Unchanged
Carnegie Capital Asset Management, LLC1,190$368.6K0.01%−17−1.4%Reduced
OneAscent Family Office, LLC1,192$369.2K0.30%−64−5.1%Reduced
Principle Wealth Partners LLC1,192$369.2K0.02%00.0%Unchanged
Spinnaker Trust1,195$370.1K0.02%00.0%Unchanged
L2 Asset Management, LLC1,195$370.1K0.05%+59+5.2%Added
Mowery & Schoenfeld Wealth Management, LLC1,203$372.6K0.64%00.0%Unchanged
Asset Planning,Inc1,203$372.7K0.27%+2+0.2%Added
Harbour Investments, Inc.1,204$373.0K0.01%−271−18.4%Reduced
Integrated Wealth Concepts LLC1,206$373.6K0.00%−98−7.5%Reduced
Walleye Capital LLC1,213$375.7K0.00%−3,689−75.3%Reduced
Kathmere Capital Management, LLC1,216$376.5K0.03%−10−0.8%Reduced
HM Payson & Co1,216$376.6K0.01%+100+9.0%Added
Alta Advisers Ltd1,218$377.3K0.12%00.0%Unchanged
Deltec Asset Management LLC1,230$381.0K0.06%+1,230New
Roble, Belko & Company, Inc1,231$381.0K0.05%+202+19.6%Added
Savvy Advisors, Inc.1,235$382.5K0.02%−123−9.1%Reduced
Integrated Advisors Network LLC1,238$383.4K0.02%−151−10.9%Reduced
Angeles Wealth Management, LLC1,244$385.3K0.02%−8−0.6%Reduced
Syntegra Private Wealth Group, LLC1,248$386.6K0.04%+40+3.3%Added
Park Place Capital Corp1,249$386.9K0.08%+55+4.6%Added
Reynders McVeigh Capital Management, LLC1,250$387.0K0.02%−6−0.5%Reduced
Freestone Capital Holdings, LLC1,252$387.8K0.01%+1,252New
Brevan Howard Capital Management LP1,253$388.1K0.01%−50,716−97.6%Reduced
Koshinski Asset Management, Inc.1,259$390.0K0.03%+395+45.7%Added
West Family Investments, Inc.1,266$392.1K0.09%−186−12.8%Reduced
Berkshire Asset Management LLC1,273$394.3K0.02%00.0%Unchanged
George Kaiser Family Foundation1,291$399.9K0.06%00.0%Unchanged
Ridgeline Wealth, LLC1,295$401.1K0.30%00.0%Unchanged
Strategic Blueprint, LLC1,308$405.2K0.02%+100+8.3%Added
Keel Point, LLC1,313$406.7K0.03%−151−10.3%Reduced
Trust Co of Vermont1,328$411.3K0.02%+3+0.2%Added
Sage Mountain Advisors LLC1,328$411.3K0.02%+100+8.1%Added
GTS Securities LLC1,329$411.6K0.02%+265+24.9%Added
Trust Co of Virginia1,343$416.0K0.03%00.0%Unchanged
SeaCrest Wealth Management, LLC1,357$416.5K0.04%−185−12.0%Reduced
AdvisorNet Financial, Inc1,354$419.4K0.02%+24+1.8%Added
Massmutual Trust Co FSB1,363$422.2K0.01%−24−1.7%Reduced
River Wealth Advisors LLC1,367$423.4K0.05%−14−1.0%Reduced
FJ Capital Management LLC1,371$424.7K0.05%+1,371New
Lake Street Financial LLC1,387$429.6K0.06%00.0%Unchanged
Bridges Investment Management Inc1,398$433.0K0.01%−29−2.0%Reduced
Insight 2811, Inc.1,400$433.6K0.19%00.0%Unchanged
Penserra Capital Management LLC1,404$434.0K0.01%+15+1.1%Added
Alpine Woods Capital Investors, LLC1,409$436.4K0.10%−11−0.8%Reduced
Aaron Wealth Advisors1,420$439.8K0.03%+1,420New
Tudor Financial Inc.1,425$441.4K0.23%−2−0.1%Reduced
Conning Inc.1,427$442.0K0.01%00.0%Unchanged
Change Path, LLC1,440$446.1K0.01%−289−16.7%Reduced
Mount Yale Investment Advisors, LLC1,442$446.5K0.03%−456−24.0%Reduced
Kingsview Wealth Management, LLC1,447$448.3K0.01%−43−2.9%Reduced
Capital Investment Advisory Services, LLC1,453$450.1K0.04%+12+0.8%Added
Tranquility Partners, LLC1,459$451.9K0.15%−211−12.6%Reduced
Ifrah Financial Services, Inc.1,460$452.2K0.12%−35−2.3%Reduced
HBW Advisory Services LLC1,470$455.3K0.05%+398+37.1%Added
Quadcap Wealth Management, LLC1,483$459.2K0.05%−158−9.6%Reduced
Modera Wealth Management, LLC1,488$461.0K0.01%−38−2.5%Reduced
Stratos Wealth Advisors, LLC1,495$463.2K0.02%+218+17.1%Added
Old North State Wealth Management, LLC1,493$463.6K0.22%+14+0.9%Added
Heritage Wealth Advisors1,498$464.0K0.02%00.0%Unchanged
Aviance Capital Partners, LLC1,500$464.6K0.06%00.0%Unchanged
Biltmore Family Office, LLC1,500$464.6K0.07%00.0%Unchanged
West Paces Advisors Inc.1,500$464.6K0.09%00.0%Unchanged
Fulton Bank, N.A.1,502$465.2K0.02%+424+39.3%Added
Longview Financial Advisors, Inc.1,502$465.2K0.33%00.0%Unchanged
Optimize Financial Inc1,506$466.5K0.24%+1,506New
Western Wealth Management, LLC1,518$470.2K0.02%+11+0.7%Added
Hoxton Planning & Management, LLC1,540$477.0K0.15%+6+0.4%Added
Austin Private Wealth, LLC1,544$478.2K0.04%+130+9.2%Added
Journey Strategic Wealth LLC1,551$480.4K0.01%+43+2.9%Added
Atomi Financial Group, Inc.1,552$480.6K0.02%−79−4.8%Reduced
XTX Topco Ltd1,555$481.6K0.03%−24,807−94.1%Reduced
SageView Advisory Group, LLC1,555$481.7K0.02%+871+127.3%Added
CenterBook Partners LP1,559$482.9K0.02%−744−32.3%Reduced
Shufro Rose & Co LLC1,400$483.3K0.04%00.0%Unchanged
David Loasby1,564$484.6K0.04%+96+6.5%Added
Raleigh Capital Management Inc.1,565$484.8K0.18%−159−9.2%Reduced
Erste Asset Management GmbH1,591$486.4K0.00%−45,989−96.7%Reduced
Oak Harbor Wealth Partners, LLC1,584$490.6K0.12%+297+23.1%Added
Oakworth Capital, Inc.1,586$491.2K0.03%00.0%Unchanged
Cozad Asset Management Inc1,587$491.4K0.04%00.0%Unchanged