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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 2023

Institutional positions in Arthur J. Gallagher & Co. as of Sep 30, 2023. 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
999
+37 vs. Q2 2023
Shares held
185.3M
+3.13M (+1.7%) vs. Q2 2023
Total value
$42.3B
+$2.36B (+5.9%) vs. Q2 2023
New holders
95
374 more added
Sold out
58
350 more reduced

14 institutions that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2023: 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 2023: 999 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 2023: $42.3B
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 2023

Shares, value and share of portfolio for each institution holding Arthur J. Gallagher & Co.; share changes are against Q2 2023.

Institutions holding AJG in Q3 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Vanguard Group Inc25,516,130$5.82B0.14%−32,148−0.1%Reduced
BlackRock Inc.17,020,760$3.88B0.11%+554,729+3.4%Added
FMR LLC9,664,117$2.20B0.19%+726,485+8.1%Added
Capital International Investors9,651,212$2.20B0.56%+150,382+1.6%Added
State Street Corp8,699,027$1.98B0.11%−241,291−2.7%Reduced
Norges Bank6,773,931$1.54B0.31%−569,589−7.8%Reduced
Morgan Stanley6,209,557$1.42B0.14%+34,999+0.6%Added
Massachusetts Financial Services Co5,396,350$1.23B0.43%−321,388−5.6%Reduced
JPMorgan Chase & Co5,000,975$1.14B0.13%+90,842+1.9%Added
Geode Capital Management, LLC4,881,758$1.11B0.13%+116,265+2.4%Added
Capital World Investors3,549,316$809.0M0.16%+1,413,750+66.2%Added
Baillie Gifford & Co2,826,867$644.3M0.59%−114,842−3.9%Reduced
WCM Investment Management, LLC2,596,873$591.7M1.74%+42,964+1.7%Added
Invesco Ltd.2,572,182$586.3M0.16%+88,861+3.6%Added
Wellington Management Group LLP2,567,657$585.2M0.12%−178,358−6.5%Reduced
Northern Trust Corp2,091,483$476.7M0.09%+107,176+5.4%Added
Boston Partners2,037,257$464.9M0.64%−140,558−6.5%Reduced
FIL Ltd1,860,721$424.1M0.50%−88,064−4.5%Reduced
Charles Schwab Investment Management Inc1,857,560$416.1M0.12%+1,943+0.1%Added
Bank of New York Mellon Corp1,721,934$392.5M0.09%−37,055−2.1%Reduced
Brown Brothers Harriman & Co1,700,827$387.7M3.42%−34,436−2.0%Reduced
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.1,424,231$324.6M0.66%+121,638+9.3%Added
Legal & General Group Plc1,336,253$304.6M0.11%−54,001−3.9%Reduced
California Public Employees Retirement System1,304,537$297.3M0.26%+4,414+0.3%Added
Envestnet Asset Management Inc1,289,340$293.9M0.13%+271,225+26.6%Added
Findlay Park Partners LLP1,153,107$262.8M2.83%−10,868−0.9%Reduced
Goldman Sachs Group Inc1,102,826$251.4M0.06%+61,774+5.9%Added
UBS Asset Management Americas Inc1,085,573$247.4M0.11%−56,627−5.0%Reduced
Burgundy Asset Management Ltd.1,029,120$234.6M2.88%−118,374−10.3%Reduced
Voya Investment Management LLC995,678$226.9M0.25%−41,093−4.0%Reduced
Viking Global Investors LPSuperinvestorViking Global Investors957,820$218.3M0.89%+135,305+16.5%Added
Bessemer Group Inc932,665$212.6M0.47%+13,767+1.5%Added
Mawer Investment Management Ltd.927,154$211.3M1.13%−19,164−2.0%Reduced
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main925,702$211.0M0.31%+229,083+32.9%Added
Artisan Partners Limited Partnership924,844$210.8M0.36%+99,427+12.0%Added
Barclays PLC788,679$179.8M0.12%+306,264+63.5%Added
Guinness Asset Management LTD771,527$175.9M4.05%+20,841+2.8%Added
Axiom Investors LLC748,267$170.6M2.45%−11,429−1.5%Reduced
American Century Companies Inc706,160$161.0M0.12%+138,051+24.3%Added
Beck Mack & Oliver LLC697,039$158.9M4.16%+2,304+0.3%Added
Bank of America Corp689,379$157.1M0.02%+18,461+2.8%Added
Swiss National Bank689,100$157.1M0.12%−84,000−10.9%Reduced
Allianz Asset Management GmbH674,651$153.8M0.31%+9,857+1.5%Added
Champlain Investment Partners, LLC647,440$147.6M0.96%−1,590−0.2%Reduced
TD Asset Management Inc636,383$145.1M0.18%+73,398+13.0%Added
Dimensional Fund Advisors LP634,937$144.7M0.05%−75,293−10.6%Reduced
Nuveen Asset Management, LLC612,775$139.7M0.05%−11,340−1.8%Reduced
Lord, Abbett & Co. LLC595,406$135.7M0.50%+82,854+16.2%Added
Price T Rowe Associates Inc554,207$126.3M0.02%+14,997+2.8%Added
Amundi522,741$122.3M0.06%+5,035+1.0%Added
Global Retirement Partners, LLC511,846$117.3M5.91%+1180.0%Added
Sumitomo Mitsui Trust Holdings, Inc.512,224$116.8M0.10%−11,017−2.1%Reduced
Zacks Investment Management498,910$113.7M1.47%+5,155+1.0%Added
Fort Pitt Capital Group, LLC488,967$111.5M4.18%+2,530+0.5%Added
Mitsubishi UFJ Trust & Banking Corp485,000$110.5M0.28%−96,965−16.7%Reduced
Royal Bank of Canada483,088$110.1M0.03%+30,545+6.7%Added
Echo Street Capital Management LLC466,211$106.3M0.99%−219,483−32.0%Reduced
Franklin Resources Inc462,773$105.5M0.05%+160,345+53.0%Added
Cooper Investors Pty Ltd472,405$103.7M8.27%+472,405New
Fenimore Asset Management Inc434,736$99.1M2.57%−5,719−1.3%Reduced
Regions Financial Corp426,822$97.3M0.87%−5,422−1.3%Reduced
Rhumbline Advisers407,176$92.8M0.11%−2,329−0.6%Reduced
National Pension Service383,345$88.5M0.14%+4,077+1.1%Added
Manufacturers Life Insurance Company, The386,397$88.1M0.05%−23,012−5.6%Reduced
Natixis Advisors, L.P.371,172$84.6M0.26%+209,867+130.1%Added
Raymond James & Associates366,414$83.5M0.07%+7,556+2.1%Added
HSBC Holdings PLC365,298$83.3M0.09%+32,907+9.9%Added
Westfield Capital Management Co LP361,096$82.3M0.56%−50,673−12.3%Reduced
Bank Julius Baer & Co. Ltd, Zurich357,974$81.6M0.48%+356,987+36,168.9%Added
Credit Suisse AG352,875$80.4M0.08%−48,826−12.2%Reduced
Westwood Holdings Group Inc.340,167$77.5M0.72%−18,401−5.1%Reduced
UBS Group AG333,082$75.9M0.03%−43,885−11.6%Reduced
California State Teachers Retirement System331,585$75.6M0.12%−16,596−4.8%Reduced
Adage Capital Partners GP, L.L.C.329,303$75.1M0.17%−484,100−59.5%Reduced
Kornitzer Capital Management Inc324,585$74.0M1.53%−3,275−1.0%Reduced
Old Republic International Corporation316,900$72.2M2.70%−17,200−5.1%Reduced
Deutsche Bank AG304,324$69.4M0.04%−35,904−10.6%Reduced
New York State Common Retirement Fund302,415$68.9M0.10%−31,730−9.5%Reduced
Congress Asset Management Co298,871$68.1M0.60%+295,146+7,923.4%Added
Welch & Forbes LLC294,650$67.2M1.11%−2,064−0.7%Reduced
Mountain Pacific Investment Advisers Inc278,277$63.4M4.40%−1,649−0.6%Reduced
Woodley Farra Manion Portfolio Management Inc275,877$62.9M4.19%+2,421+0.9%Added
Principal Financial Group Inc272,721$62.2M0.04%−711−0.3%Reduced
Alliancebernstein L.P.268,434$61.2M0.03%−8,868−3.2%Reduced
Welch Group, LLC261,344$59.6M3.53%−8,330−3.1%Reduced
Aviva PLC260,673$59.4M0.25%+211,716+432.5%Added
Wells Fargo & Company256,029$58.4M0.02%+4,334+1.7%Added
Dearborn Partners LLC255,576$58.3M2.29%+1,074+0.4%Added
Capital Group Private Client Services, Inc.255,108$58.1M0.71%−1,400−0.5%Reduced
APG Asset Management N.V.253,225$57.7M0.12%+1,000+0.4%Added
Assenagon Asset Management S.A.252,223$57.5M0.20%+193,034+326.1%Added
Comerica Bank251,487$57.3M0.30%+18,343+7.9%Added
Close Asset Management Ltd246,226$56.1M2.90%−130,134−34.6%Reduced
Ofi Invest Asset Management253,124$54.5M1.96%−3,292−1.3%Reduced
Neuberger Berman Group LLC227,838$51.9M0.05%+396+0.2%Added
Bank of Montreal223,090$51.6M0.03%+41,483+22.8%Added
Employees Retirement System of Texas223,000$50.8M0.75%00.0%Unchanged
King Luther Capital Management Corp220,206$50.2M0.26%+24,684+12.6%Added
Retirement Systems of Alabama215,828$49.2M0.23%+460.0%Added
State Board of Administration of Florida Retirement System214,559$48.9M0.11%+13,095+6.5%Added