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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
APG Asset Management N.V.980,565$104.1M0.18%––
Dimensional Fund Advisors LP907,388$113.2M0.04%––
Royal Bank of Canada907,563$113.2M0.04%––
Manufacturers Life Insurance Company, The914,571$114.1M0.10%––
Ameriprise Financial Inc932,720$116.6M0.04%––
Mitsubishi UFJ Trust & Banking Corp962,454$120.1M0.27%––
Mawer Investment Management Ltd.997,672$124.5M0.68%––
Swiss National Bank1,032,205$128.8M0.09%––
Legal & General Group Plc1,194,148$149.0M0.06%––
Burgundy Asset Management Ltd.1,307,857$163.2M1.66%––
Bank of America Corp1,454,400$181.5M0.02%––
California Public Employees Retirement System1,486,256$185.4M0.14%––
FIL Ltd1,590,417$198.4M0.23%––
Bank of New York Mellon Corp1,843,832$230.1M0.05%––
Norges Bank1,909,524$238.3M0.05%––
Northern Trust Corp2,049,000$255.7M0.05%––
Champlain Investment Partners, LLC2,296,773$286.6M1.49%––
Wellington Management Group LLP2,302,915$287.3M0.05%––
Invesco Ltd.2,340,570$292.0M0.08%––
Victory Capital Management Inc2,344,058$292.5M0.30%––
Charles Schwab Investment Management Inc2,840,263$354.4M0.13%––
Geode Capital Management, LLC3,438,779$428.1M0.07%––
Brown Brothers Harriman & Co3,694,476$461.0M2.94%––
Massachusetts Financial Services Co3,915,722$488.6M0.15%––
Price T Rowe Associates Inc4,028,582$502.6M0.05%––
Capital International Investors4,305,589$537.3M0.14%––
JPMorgan Chase & Co4,367,971$545.0M0.08%––
Baillie Gifford & Co7,919,140$988.1M0.55%––
FMR LLC8,124,493$1.01B0.09%––
State Street Corp8,970,219$1.12B0.06%––
BlackRock Inc.19,663,803$2.45B0.07%––
Vanguard Group Inc22,430,783$2.80B0.08%––