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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, Q1 2021

Institutional positions in Arthur J. Gallagher & Co. as of Mar 31, 2021. 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
732
No complete 13F data for Q4 2020
Shares held
165.4M
No complete 13F data for Q4 2020
Total value
$20.6B
No complete 13F data for Q4 2020

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 2021: 732 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 heldQ1 2021: $20.6B
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 20251,342$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, Q1 2021

Shares, value and share of portfolio for each institution holding Arthur J. Gallagher & Co..

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.

Institutions holding AJG in Q1 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Bayesian Capital Management, LP4,478$559.0K0.13%––
Capital Asset Advisory Services LLC4,476$559.0K0.08%––
Engineers Gate Manager LP4,510$563.0K0.03%––
Sawgrass Asset Management LLC4,833$603.0K0.05%––
Eqis Capital Management, Inc.4,916$613.0K0.05%––
Washington Capital Management Inc5,000$624.0K0.58%––
Integrated Advisors Network LLC5,021$626.0K0.06%––
Snowden Capital Advisors LLC5,084$634.3K0.04%––
Erste Asset Management GmbH5,100$640.7K0.02%––
AGF Investments LLC5,134$641.0K0.08%––
Trust Co of Virginia5,160$644.0K0.07%––
Contravisory Investment Management, Inc.5,182$647.0K0.20%––
Kinneret Advisory, LLC5,185$647.0K0.08%––
PAX Financial Group, LLC5,194$648.0K0.18%––
Guinness Atkinson Asset Management Inc5,198$649.0K0.32%––
Mirae Asset Global Investments Co., Ltd.5,251$656.0K0.00%––
Evercore Wealth Management, LLC5,290$660.0K0.01%––
Duality Advisers, LP5,296$661.0K0.06%––
Kentucky Retirement Systems Insurance Trust Fund5,426$677.0K0.07%––
World Asset Management Inc4,706$682.0K0.06%––
MEAG MUNICH ERGO, Kapitalanlagegesellschaft mbH5,493$685.0K0.07%––
Ameritas Investment Company, LLC5,495$685.6K0.06%––
Baird Financial Group, Inc.5,496$686.0K0.00%––
Optimal Asset Management, Inc.5,600$699.0K0.09%––
WBI Investments5,619$701.0K0.11%––
Apollon Wealth Management, LLC5,622$701.0K0.14%––
44 Wealth Management LLC5,722$714.0K0.30%––
Illinois Municipal Retirement Fund5,890$735.0K0.03%––
Seelaus Asset Management LLC5,905$737.0K0.47%––
Norinchukin Bank, The5,980$746.0K0.01%––
Patton Albertson Miller Group, LLC6,000$749.0K0.18%––
Advisor Partners LLC6,063$757.0K0.05%––
Covenant Partners, LLC6,092$760.0K0.30%––
Wolverine Trading, LLC6,109$767.0K0.01%––
Boston Partners6,320$789.0K0.00%––
Hourglass Capital, LLC6,410$800.0K0.20%––
Full Sail Capital, LLC6,200$806.0K0.08%––
IBM Retirement Fund6,481$809.0K0.06%––
Oppenheimer Asset Management Inc.6,490$810.0K0.01%––
Allen Capital Group, LLC6,499$811.0K0.18%––
Resources Investment Advisors, LLC.6,507$812.0K0.04%––
Carroll Financial Associates, Inc.6,636$827.0K0.05%––
Mercer Global Advisors Inc6,794$847.0K0.01%––
Essex Investment Management Co LLC6,880$858.0K0.10%––
Cigna Investments Inc6,911$862.0K0.06%––
Horizon Investments, LLC6,910$862.0K0.03%––
Ossiam6,907$862.0K0.03%––
WESPAC Advisors, LLC7,015$875.0K0.65%––
Ontario Teachers Pension Plan Board7,044$879.0K0.01%––
WBH Advisory Inc7,050$880.0K0.14%––
Grimes & Company, Inc.7,052$880.0K0.04%––
Disciplined Investments, LLC7,088$884.0K0.52%––
E. Ohman J:or Asset Management AB7,200$898.3K0.03%––
Northwestern Mutual Wealth Management Co7,380$921.0K0.00%––
Storebrand Asset Management AS7,385$921.4K0.00%––
BP PLC7,395$923.0K0.03%––
Toews Corp7,500$936.0K0.08%––
Private Trust Co NA7,662$955.0K0.16%––
LS Investment Advisors, LLC7,655$955.0K0.05%––
Mission Creek Capital Partners, Inc.7,914$987.0K0.15%––
American National Registered Investment Advisor, Inc.8,212$1.02M0.40%––
JJJ Advisors Inc.8,279$1.03M0.41%––
Xponance, Inc.8,332$1.04M0.02%––
Whittier Trust Co of Nevada Inc8,428$1.05M0.05%––
Cox Capital Mgt LLC8,473$1.06M0.73%––
Candriam Luxembourg S.C.A.8,931$1.06M0.01%––
Segall Bryant & Hamill, LLC8,604$1.07M0.01%––
First Nebraska Trust Co8,600$1.07M0.14%––
Jefferies Group LLC8,617$1.08M0.03%––
Neuberger Berman Group LLC9,262$1.08M0.00%––
Northwestern Mutual Investment Management Company, LLC8,783$1.10M0.02%––
Raymond James Trust N.A.8,798$1.10M0.04%––
Macquarie Group Ltd9,032$1.13M0.00%––
Crawford Investment Counsel Inc9,038$1.13M0.03%––
Oppenheimer & Co Inc9,076$1.13M0.02%––
Leavell Investment Management, Inc.9,397$1.17M0.10%––
Prospera Financial Services Inc9,465$1.18M0.07%––
Ropes Wealth Advisors LLC8,030$1.19M0.21%––
D. E. Shaw & Co., Inc.9,724$1.21M0.00%––
Walleye Capital LLC9,822$1.23M0.08%––
Diversified Trust Co9,897$1.24M0.05%––
Coldstream Capital Management Inc9,932$1.24M0.07%––
B. Metzler seel. Sohn & Co. Holding AG10,047$1.25M0.02%––
Nordea Investment Management AB10,156$1.27M0.00%––
Benjamin Edwards Inc10,236$1.28M0.97%––
Caisse de Depot Et Placement du Quebec10,401$1.30M0.00%––
Amalgamated Bank10,457$1.30M0.05%––
Insight Wealth Strategies, LLC10,710$1.34M0.18%––
Paradigm Financial Partners, LLC10,731$1.34M0.36%––
Gotham Asset Management, LLC11,078$1.38M0.06%––
Boston Private Wealth LLC11,132$1.39M0.02%––
Pinnacle Wealth Planning Services, Inc.11,147$1.39M0.36%––
Glenmede Trust Co NA11,219$1.40M0.01%––
Pacer Advisors, Inc.11,236$1.40M0.02%––
First Hawaiian Bank11,251$1.40M0.06%––
Chicago Partners Investment Group LLC10,354$1.41M0.12%––
Wealthfront Advisers LLC11,268$1.41M0.01%––
Umb Bank N A11,656$1.45M0.04%––
Kestra Advisory Services, LLC11,655$1.45M0.02%––
Kentucky Retirement Systems11,843$1.48M0.07%––