Skip to main content

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, Q1 2026

Institutional positions in Arthur J. Gallagher & Co. as of Mar 31, 2026. 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
1,248
−28 vs. Q4 2025
Shares held
229.6M
+35.7M (+18.4%) vs. Q4 2025
Total value
$49.7B
−$464.2M (−0.9%) vs. Q4 2025
New holders
155
432 more added
Sold out
183
473 more reduced

23 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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 holdersQ1 2026: 1,248 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 heldQ1 2026: $49.7B
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, Q1 2026

Shares, value and share of portfolio for each institution holding Arthur J. Gallagher & Co.; share changes are against Q4 2025.

Institutions holding AJG in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Keybank National Association7,468$1.62M0.01%+1,550+26.2%Added
North Dakota State Investment Board7,346$1.59M0.07%−1,348−15.5%Reduced
Bailard, Inc.7,325$1.59M0.04%+20.0%Added
Taylor Frigon Capital Management LLC7,254$1.57M0.89%+7,254New
Siemens Fonds Invest GmbH7,217$1.56M0.09%+18+0.3%Added
Peapack Gladstone Financial Corp7,191$1.56M0.02%+6,063+537.5%Added
VeraBank, N.A.7,149$1.55M0.28%−262−3.5%Reduced
MUFG Securities Americas Inc.7,111$1.54M0.10%+193+2.8%Added
Steward Partners Investment Advisory, LLC7,095$1.54M0.01%−329−4.4%Reduced
Ascent Group, LLC7,020$1.52M0.05%+401+6.1%Added
Securian Asset Management, Inc6,983$1.51M0.06%00.0%Unchanged
Arlington Trust Co LLC6,949$1.51M0.13%−10.0%Reduced
Bridges Investment Management Inc6,924$1.50M0.02%+5,661+448.2%Added
Cincinnati Indemnity Co6,882$1.49M3.70%00.0%Unchanged
Squarepoint Ops LLC6,831$1.48M0.00%−13−0.2%Reduced
Pinnacle Wealth Planning Services, Inc.6,799$1.47M0.15%+575+9.2%Added
Summit Trail Advisors, LLC6,785$1.47M0.02%+1,495+28.3%Added
Campbell Newman Asset Management Inc6,759$1.46M0.12%−114,673−94.4%Reduced
Pensionmark Financial Group, LLC6,734$1.46M0.02%−772−10.3%Reduced
Farther Finance Advisors, LLC6,736$1.46M0.01%−521−7.2%Reduced
Nomura Holdings Inc6,712$1.45M0.01%+200+3.1%Added
Kentucky Retirement Systems Insurance Trust Fund6,674$1.45M0.10%00.0%Unchanged
Vise Technologies, Inc.5,577$1.44M0.03%00.0%Unchanged
SummitTX Capital, L.P.6,493$1.41M0.04%+6,493New
Savant Capital, LLC6,438$1.39M0.01%−418−6.1%Reduced
Alteri Wealth LLC6,404$1.39M0.45%+435+7.3%Added
Potomac Fund Management Inc6,383$1.38M0.05%+535+9.1%Added
Cresset Asset Management, LLC6,370$1.38M0.01%+3,367+112.1%Added
AustralianSuper Pty Ltd6,244$1.35M0.01%+1,036+19.9%Added
Cabot Wealth Management Inc6,241$1.35M0.16%+123+2.0%Added
CIBC World Markets Inc.6,145$1.33M0.00%−29,378−82.7%Reduced
Fiduciary Alliance LLC5,939$1.33M0.08%+2,112+55.2%Added
Frank, Rimerman Advisors LLC5,872$1.27M0.08%−63−1.1%Reduced
Oppenheimer & Co Inc5,829$1.26M0.02%−1,009−14.8%Reduced
Laird Norton Trust Company, LLC5,812$1.26M0.03%−356−5.8%Reduced
Ostrum Asset Management5,756$1.25M0.07%−1,169−16.9%Reduced
Third View Private Wealth, LLC5,690$1.23M0.17%+791+16.1%Added
Warren Averett Asset Management, LLC5,690$1.23M0.01%+524+10.1%Added
Directional Asset Management5,686$1.23M1.13%+775+15.8%Added
Meeder Advisory Services, Inc.5,678$1.23M0.05%+992+21.2%Added
Everence Capital Management Inc5,628$1.22M0.07%00.0%Unchanged
Bannerstone Capital Management, LLC5,613$1.22M1.26%+193+3.6%Added
Eagle Wealth Strategies LLC5,535$1.20M0.53%+33+0.6%Added
Game Creek Capital, LP5,500$1.19M0.46%−3,500−38.9%Reduced
Builder Investment Group Inc5,496$1.19M0.26%00.0%Unchanged
Seelaus Asset Management LLC5,475$1.19M0.86%−28−0.5%Reduced
QRG Capital Management, Inc.5,451$1.18M0.01%+128+2.4%Added
Belpointe Asset Management LLC5,386$1.17M0.04%+5,386New
Canada Post Corp Registered Pension Plan5,329$1.15M0.05%−1,150−17.7%Reduced
Fairfield Financial Advisors, LTD5,305$1.15M0.40%−1,346−20.2%Reduced
Disciplined Investments, LLC5,266$1.14M0.41%00.0%Unchanged
Vestmark Advisory Solutions, Inc.5,244$1.14M0.01%+490+10.3%Added
SBI Okasan Asset Management Co.Ltd.5,210$1.13M0.05%00.0%Unchanged
Portfolio Design Labs, LLC5,193$1.12M0.20%+177+3.5%Added
Guinness Atkinson Asset Management Inc5,191$1.12M0.56%+1,825+54.2%Added
Dover Advisors, LLC5,186$1.12M0.46%−73−1.4%Reduced
Vestcor Inc5,183$1.12M0.03%00.0%Unchanged
EPG Wealth Management LLC5,118$1.11M0.30%+42+0.8%Added
Prudential PLC5,074$1.10M0.01%00.0%Unchanged
Moody National Bank Trust Division5,064$1.10M0.10%+548+12.1%Added
Gilbert & Cook, Inc.5,006$1.08M0.14%+311+6.6%Added
Merrion Investment Management Co, LLC5,000$1.08M0.58%00.0%Unchanged
Everett Harris & Co4,990$1.08M0.01%−42−0.8%Reduced
V2 Financial group LLC4,886$1.06M0.49%00.0%Unchanged
Occudo Quantitative Strategies LP5,065$1.05M0.06%+5,065New
Clear Harbor Asset Management, LLC4,818$1.04M0.07%+4,818New
Vaughan Nelson Investment Management, L.P.4,785$1.04M0.01%00.0%Unchanged
Allworth Financial LP4,779$1.04M0.00%−200−4.0%Reduced
Main Management ETF Advisors, LLC4,748$1.03M0.04%+4,748New
Monetary Management Group Inc4,720$1.02M0.24%+2,320+96.7%Added
Signaturefd, LLC4,718$1.02M0.02%+548+13.1%Added
BankPlus Trust Department4,698$1.02M0.27%−33−0.7%Reduced
Horizon Investments, LLC4,698$1.02M0.01%+217+4.8%Added
Boston Private Wealth LLC4,645$1.01M0.07%−639−12.1%Reduced
44 Wealth Management LLC4,641$1.01M0.35%+4,641New
SFM, LLC4,608$997.9K0.60%+643+16.2%Added
Advisory Alpha, LLC4,604$997.2K0.03%+767+20.0%Added
Engineers Gate Manager LP4,600$996.3K0.01%+4,600New
Prosperity Consulting Group, LLC4,570$989.9K0.04%−4,957−52.0%Reduced
Avidian Wealth Solutions, LLC4,546$984.6K0.03%+4,546New
Robeco Institutional Asset Management B.V.4,543$983.9K0.00%−256−5.3%Reduced
South Dakota Investment Council4,437$961.0K0.02%00.0%Unchanged
Coastal Bridge Advisors, LLC4,398$952.6K0.07%−1,120−20.3%Reduced
TFR Capital, LLC.4,357$943.6K0.29%+521+13.6%Added
Regal Investment Advisors LLC4,347$941.5K0.05%+1,218+38.9%Added
Kovitz Investment Group Partners, LLC4,336$939.3K0.02%−16−0.4%Reduced
Fiduciary Trust Co4,334$938.7K0.01%−142−3.2%Reduced
Guyasuta Investment Advisors Inc4,256$921.8K0.05%00.0%Unchanged
Advisory Services Network, LLC4,222$914.5K0.01%+102+2.5%Added
TCW Group Inc4,206$910.9K0.01%+203+5.1%Added
St Germain D J Co Inc4,195$908.6K0.04%00.0%Unchanged
Meiji Yasuda Asset Management Co Ltd.4,140$896.6K0.04%−486−10.5%Reduced
Triangle Securities Wealth Management4,121$892.5K0.20%+118+2.9%Added
Parallel Advisors, LLC4,110$890.2K0.02%+496+13.7%Added
Quadrant Capital Group LLC4,018$870.2K0.03%−130−3.1%Reduced
Argent Trust Co4,004$867.2K0.03%−63−1.5%Reduced
Ticino Wealth3,446$862.4K0.30%−34−1.0%Reduced
Wealth Enhancement Trust Services, Inc.3,967$859.2K0.10%+493+14.2%Added
ISAM Funds (UK) Ltd3,956$856.8K0.42%+3,956New
TritonPoint Partners, LLC3,943$854.0K0.31%+1,157+41.5%Added