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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 2021

Institutional positions in Arthur J. Gallagher & Co. as of Sep 30, 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
775
+8 vs. Q2 2021
Shares held
177.2M
+1.65M (+0.9%) vs. Q2 2021
Total value
$26.3B
+$1.77B (+7.2%) vs. Q2 2021
New holders
80
283 more added
Sold out
72
254 more reduced

12 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2021: 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 2021: 775 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 2021: $26.3B
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 2021

Shares, value and share of portfolio for each institution holding Arthur J. Gallagher & Co.; share changes are against Q2 2021.

Institutions holding AJG in Q3 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Vanguard Group Inc24,142,292$3.59B0.09%+378,565+1.6%Added
BlackRock Inc.19,205,077$2.85B0.08%−248,089−1.3%Reduced
State Street Corp9,482,132$1.41B0.07%+100,910+1.1%Added
FMR LLC9,183,121$1.37B0.11%−178,700−1.9%Reduced
Baillie Gifford & Co8,077,529$1.20B0.63%−87,644−1.1%Reduced
JPMorgan Chase & Co5,429,908$807.2M0.11%+302,294+5.9%Added
Capital International Investors5,098,918$758.1M0.17%+2,2310.0%Added
Norges Bank4,950,576$735.9M0.16%+1,561,050+46.1%Added
Massachusetts Financial Services Co4,049,694$602.0M0.18%+2,859+0.1%Added
Geode Capital Management, LLC3,906,825$579.6M0.08%+177,645+4.8%Added
Brown Brothers Harriman & Co3,480,175$517.3M3.06%−134,210−3.7%Reduced
Findlay Park Partners LLP2,463,110$366.1M2.52%+275,780+12.6%Added
Wellington Management Group LLP2,443,532$363.2M0.06%+19,102+0.8%Added
Invesco Ltd.2,303,305$342.4M0.09%+63,891+2.9%Added
Champlain Investment Partners, LLC2,156,747$320.6M1.54%−78,351−3.5%Reduced
Charles Schwab Investment Management Inc2,153,408$320.1M0.10%+4,511+0.2%Added
Northern Trust Corp2,124,049$315.7M0.06%+16,569+0.8%Added
FIL Ltd1,880,034$279.5M0.31%−52,143−2.7%Reduced
Bank of New York Mellon Corp1,840,224$273.5M0.05%−21,504−1.2%Reduced
California Public Employees Retirement System1,516,285$225.4M0.17%+21,338+1.4%Added
Legal & General Group Plc1,400,541$208.2M0.07%+80,689+6.1%Added
Citadel Advisors LLC1,393,308$207.1M0.23%+1,079,778+344.4%Added
Burgundy Asset Management Ltd.1,327,721$197.4M1.93%+32,003+2.5%Added
Bank of America Corp1,186,890$176.4M0.02%+23,824+2.0%Added
Mawer Investment Management Ltd.1,000,503$148.7M0.71%−1,823−0.2%Reduced
Manufacturers Life Insurance Company, The951,260$141.4M0.12%+13,932+1.5%Added
Millennium Management LLC936,961$139.3M0.18%+927,372+9,671.2%Added
Mitsubishi UFJ Trust & Banking Corp917,401$136.4M0.30%+5,958+0.7%Added
Dimensional Fund Advisors LP887,238$131.9M0.04%−18,647−2.1%Reduced
APG Asset Management N.V.1,026,765$131.7M0.23%+15,800+1.6%Added
Royal Bank of Canada884,104$131.4M0.04%−177,139−16.7%Reduced
Adage Capital Partners GP, L.L.C.879,203$130.7M0.26%+441,800+101.0%Added
Morgan Stanley840,598$125.0M0.02%−126,511−13.1%Reduced
UBS Asset Management Americas Inc819,677$121.8M0.05%+14,048+1.7%Added
Swiss National Bank815,505$121.2M0.08%+25,400+3.2%Added
Ameriprise Financial Inc807,148$120.0M0.04%−357,636−30.7%Reduced
Westfield Capital Management Co LP783,584$116.5M0.70%+217,548+38.4%Added
Schonfeld Strategic Advisors LLC770,871$114.6M1.30%+770,871New
Envestnet Asset Management Inc746,249$110.9M0.06%+30,401+4.2%Added
Renaissance Technologies LLC729,000$108.4M0.14%+412,710+130.5%Added
Nuveen Asset Management, LLC721,792$107.3M0.03%−58,275−7.5%Reduced
Senator Investment Group LP660,000$98.1M1.68%+660,000New
Artisan Partners Limited Partnership623,804$92.7M0.11%+623,804New
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main603,725$89.7M0.14%+37,354+6.6%Added
Goldman Sachs Group Inc603,620$89.7M0.02%−82,995−12.1%Reduced
Arrowstreet Capital, Limited Partnership602,004$89.5M0.11%−336−0.1%Reduced
Price T Rowe Associates Inc592,212$88.0M0.01%−3,436,776−85.3%Reduced
Sumitomo Mitsui Trust Holdings, Inc.589,449$87.6M0.05%+3,364+0.6%Added
Eaton Vance Management591,154$87.5M0.12%−582−0.1%Reduced
Fenimore Asset Management Inc566,647$84.2M2.07%−2,099−0.4%Reduced
Regions Financial Corp558,631$83.0M0.72%−23,042−4.0%Reduced
Fort Pitt Capital Group, LLC557,666$82.9M3.45%−5,475−1.0%Reduced
Beck Mack & Oliver LLC555,741$82.6M2.14%+25,883+4.9%Added
Parametric Portfolio Associates LLC549,004$81.6M0.05%+29,580+5.7%Added
Bank of Montreal528,581$80.0M0.04%+200,780+61.3%Added
Global Retirement Partners, LLC521,602$77.5M7.67%+816+0.2%Added
Barclays PLC513,793$76.4M0.05%−52,602−9.3%Reduced
Credit Suisse AG506,740$75.3M0.06%−40,312−7.4%Reduced
Deutsche Bank AG497,846$74.0M0.04%−398,740−44.5%Reduced
Balyasny Asset Management LLC495,488$73.7M0.35%+378,039+321.9%Added
Robeco Institutional Asset Management B.V.491,530$73.1M0.16%−15,729−3.1%Reduced
Bain Capital Public Equity Management II, LLC487,829$72.5M2.95%+487,829New
First Trust Advisors LP480,457$71.4M0.08%−71,268−12.9%Reduced
Old Republic International Corporation471,400$70.1M1.46%00.0%Unchanged
Junto Capital Management LP467,310$69.5M2.19%+158,741+51.4%Added
Guinness Asset Management LTD394,228$67.9M3.21%+1480.0%Added
Amundi438,127$65.1M0.05%−128,174−22.6%Reduced
Virginia Retirement Systems Et Al433,500$64.4M0.66%−9,200−2.1%Reduced
Zacks Investment Management403,055$59.9M0.95%+8,410+2.1%Added
Kornitzer Capital Management Inc393,227$58.5M0.90%−3,723−0.9%Reduced
Cooper Investors Pty Ltd390,967$58.1M3.85%+23,962+6.5%Added
New York State Common Retirement Fund388,606$57.8M0.06%+37,558+10.7%Added
TD Asset Management Inc378,501$56.3M0.06%−43,017−10.2%Reduced
Woodley Farra Manion Portfolio Management Inc372,191$55.3M4.58%−31,942−7.9%Reduced
Macquarie Group Ltd371,055$55.2M0.05%+10,204+2.8%Added
American Century Companies Inc364,490$54.2M0.04%−40,842−10.1%Reduced
Gillson Capital LP358,091$53.2M3.90%+358,091New
California State Teachers Retirement System357,581$53.2M0.07%+806+0.2%Added
Dearborn Partners LLC356,031$52.9M2.15%+303+0.1%Added
Raymond James & Associates347,325$51.6M0.05%−8,087−2.3%Reduced
Aviva PLC346,584$51.5M0.23%−18,046−4.9%Reduced
Mountain Pacific Investment Advisers Inc335,994$49.9M3.06%+1,095+0.3%Added
Samlyn Capital, LLC314,884$46.8M0.69%−32,319−9.3%Reduced
Assenagon Asset Management S.A.310,022$46.1M0.19%+310,022New
Welch Group, LLC300,455$44.7M3.02%−5,610−1.8%Reduced
Rhumbline Advisers298,622$44.4M0.06%−9,222−3.0%Reduced
Principal Financial Group Inc293,180$43.6M0.03%−1,611−0.5%Reduced
Welch & Forbes LLC286,691$42.6M0.71%+5,601+2.0%Added
Fort Washington Investment Advisors Inc277,589$41.3M0.26%+205,882+287.1%Added
National Pension Service268,685$39.9M0.08%−19,324−6.7%Reduced
Alliancebernstein L.P.264,566$39.3M0.02%−987−0.4%Reduced
HSBC Holdings PLC259,324$38.9M0.04%+9,870+4.0%Added
Prana Capital Management, LP261,540$38.9M3.42%+261,540New
Martingale Asset Management L P253,604$37.7M0.49%−152,579−37.6%Reduced
United Capital Financial Advisers, LLC251,353$37.4M0.19%+1,807+0.7%Added
Epoch Investment Partners, Inc.246,898$36.7M0.20%−288−0.1%Reduced
Gateway Investment Advisers LLC244,492$36.3M0.38%−480.0%Reduced
Retirement Systems of Alabama230,999$34.3M0.13%−85,550−27.0%Reduced
Voloridge Investment Management, LLC230,847$34.3M0.22%+101,582+78.6%Added
Point72 Asset Management, L.P.223,400$33.2M0.16%+211,900+1,842.6%Added