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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
Vanguard Group Inc22,430,783$2.80B0.08%––
BlackRock Inc.19,663,803$2.45B0.07%––
State Street Corp8,970,219$1.12B0.06%––
FMR LLC8,124,493$1.01B0.09%––
Baillie Gifford & Co7,919,140$988.1M0.55%––
JPMorgan Chase & Co4,367,971$545.0M0.08%––
Capital International Investors4,305,589$537.3M0.14%––
Price T Rowe Associates Inc4,028,582$502.6M0.05%––
Massachusetts Financial Services Co3,915,722$488.6M0.15%––
Brown Brothers Harriman & Co3,694,476$461.0M2.94%––
Geode Capital Management, LLC3,438,779$428.1M0.07%––
Charles Schwab Investment Management Inc2,840,263$354.4M0.13%––
Victory Capital Management Inc2,344,058$292.5M0.30%––
Invesco Ltd.2,340,570$292.0M0.08%––
Wellington Management Group LLP2,302,915$287.3M0.05%––
Champlain Investment Partners, LLC2,296,773$286.6M1.49%––
Northern Trust Corp2,049,000$255.7M0.05%––
Norges Bank1,909,524$238.3M0.05%––
Bank of New York Mellon Corp1,843,832$230.1M0.05%––
FIL Ltd1,590,417$198.4M0.23%––
California Public Employees Retirement System1,486,256$185.4M0.14%––
Bank of America Corp1,454,400$181.5M0.02%––
Burgundy Asset Management Ltd.1,307,857$163.2M1.66%––
Legal & General Group Plc1,194,148$149.0M0.06%––
Swiss National Bank1,032,205$128.8M0.09%––
Mawer Investment Management Ltd.997,672$124.5M0.68%––
Mitsubishi UFJ Trust & Banking Corp962,454$120.1M0.27%––
Ameriprise Financial Inc932,720$116.6M0.04%––
Manufacturers Life Insurance Company, The914,571$114.1M0.10%––
Royal Bank of Canada907,563$113.2M0.04%––
Dimensional Fund Advisors LP907,388$113.2M0.04%––
APG Asset Management N.V.980,565$104.1M0.18%––
UBS Asset Management Americas Inc813,013$101.4M0.04%––
Morgan Stanley811,145$101.2M0.01%––
Nuveen Asset Management, LLC695,273$86.7M0.03%––
Deutsche Bank AG694,035$86.6M0.05%––
Envestnet Asset Management Inc683,842$85.3M0.06%––
Credit Suisse AG653,442$81.5M0.06%––
Citadel Advisors LLC624,465$77.9M0.08%––
American Century Companies Inc622,221$77.6M0.06%––
Sumitomo Mitsui Trust Holdings, Inc.614,221$76.6M0.05%––
Fort Pitt Capital Group, LLC604,707$75.4M3.38%––
Goldman Sachs Group Inc603,140$75.3M0.02%––
Regions Financial Corp602,958$75.2M0.68%––
Fenimore Asset Management Inc598,572$74.7M1.93%––
Eaton Vance Management596,514$74.4M0.11%––
Westfield Capital Management Co LP577,238$72.0M0.45%––
M&G Investment Management Ltd573,823$71.7M0.60%––
First Trust Advisors LP553,307$69.1M0.08%––
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main545,948$68.1M0.13%––
Global Retirement Partners, LLC519,936$64.9M7.60%––
Parametric Portfolio Associates LLC491,459$61.3M0.04%––
TD Asset Management Inc490,973$61.3M0.07%––
Old Republic International Corporation471,400$58.8M1.39%––
Martingale Asset Management L P460,215$57.4M0.66%––
Raymond James & Associates459,694$57.4M0.06%––
Canada Pension Plan Investment Board444,596$55.5M0.07%––
Dearborn Partners LLC428,956$53.5M2.28%––
Woodley Farra Manion Portfolio Management Inc413,243$51.6M4.31%––
Kornitzer Capital Management Inc398,825$49.8M0.80%––
Guinness Asset Management LTD393,060$49.0M3.09%––
Natixis392,432$49.0M0.16%––
Zacks Investment Management383,128$47.8M0.85%––
Barclays PLC378,718$47.3M0.05%––
Virginia Retirement Systems Et Al378,000$47.2M0.46%––
Adage Capital Partners GP, L.L.C.362,803$45.3M0.09%––
Aviva PLC361,602$45.1M0.22%––
UBS Group AG358,242$44.7M0.02%––
Cooper Investors Pty Ltd354,413$44.2M3.29%––
California State Teachers Retirement System347,586$43.4M0.06%––
New York State Common Retirement Fund338,686$42.3M0.05%––
Mountain Pacific Investment Advisers Inc334,674$41.8M2.78%––
Waddell & Reed Financial Inc332,256$41.5M0.09%––
Arrowstreet Capital, Limited Partnership331,121$41.3M0.06%––
Bank of Montreal300,742$39.8M0.03%––
Welch Group, LLC318,397$39.7M2.86%––
Thrivent Financial for Lutherans314,132$39.2M0.09%––
Retirement Systems of Alabama313,863$39.2M0.15%––
Wells Fargo & Company311,248$38.8M0.01%––
Rhumbline Advisers305,374$38.1M0.05%––
National Pension Service286,009$35.7M0.07%––
State of Tennessee, Treasury Department281,720$35.1M0.14%––
Panagora Asset Management Inc273,837$34.2M0.19%––
Amundi Asset Management US, Inc.272,368$34.0M0.03%––
Principal Financial Group Inc269,063$33.6M0.02%––
AXA S.A.268,150$33.5M0.10%––
Citigroup Inc258,687$32.3M0.03%––
United Capital Financial Advisers, LLC254,676$31.8M0.18%––
Alliancebernstein L.P.253,675$31.7M0.01%––
Welch & Forbes LLC252,245$31.5M0.58%––
Gateway Investment Advisers LLC244,817$30.5M0.33%––
Epoch Investment Partners, Inc.232,306$29.0M0.14%––
Comerica Bank205,863$28.4M0.17%––
Balyasny Asset Management LLC227,492$28.4M0.17%––
Teacher Retirement System of Texas225,906$28.2M0.16%––
Connor, Clark & Lunn Investment Management Ltd.222,230$27.7M0.15%––
HSBC Holdings PLC215,499$27.0M0.04%––
State Board of Administration of Florida Retirement System212,667$26.5M0.05%––
Franklin Resources Inc207,317$25.9M0.01%––
Cornerstone Capital, Inc.201,651$25.2M3.04%––