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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, Q4 2023

Institutional positions in Arthur J. Gallagher & Co. as of Dec 31, 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
1,082
+100 vs. Q3 2023
Shares held
186.4M
+1.48M (+0.8%) vs. Q3 2023
Total value
$41.9B
−$259.2M (−0.6%) vs. Q3 2023
New holders
163
413 more added
Sold out
63
356 more reduced

17 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2023: 1,082 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 heldQ4 2023: $41.9B
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, Q4 2023

Shares, value and share of portfolio for each institution holding Arthur J. Gallagher & Co.; share changes are against Q3 2023.

Institutions holding AJG in Q4 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Vanguard Group Inc25,553,450$5.75B0.13%+37,320+0.1%Added
BlackRock Inc.17,415,310$3.92B0.10%+394,550+2.3%Added
Capital International Investors10,323,616$2.32B0.52%+672,404+7.0%Added
FMR LLC10,283,750$2.31B0.18%+619,633+6.4%Added
State Street Corp8,890,627$2.00B0.10%+191,600+2.2%Added
Morgan Stanley6,219,767$1.40B0.12%+10,210+0.2%Added
Norges Bank5,817,841$1.31B0.23%−956,090−14.1%Reduced
Massachusetts Financial Services Co5,055,719$1.14B0.37%−340,631−6.3%Reduced
Geode Capital Management, LLC4,994,170$1.12B0.12%+112,412+2.3%Added
JPMorgan Chase & Co4,816,463$1.08B0.11%−184,512−3.7%Reduced
Capital World Investors4,433,710$997.1M0.18%+884,394+24.9%Added
Baillie Gifford & Co2,713,709$610.3M0.48%−113,158−4.0%Reduced
WCM Investment Management, LLC2,610,081$583.2M1.61%+13,208+0.5%Added
Invesco Ltd.2,364,791$531.8M0.13%−207,391−8.1%Reduced
Northern Trust Corp2,045,389$460.0M0.08%−46,094−2.2%Reduced
Charles Schwab Investment Management Inc1,848,879$409.5M0.10%−8,681−0.5%Reduced
Boston Partners1,572,413$354.1M0.47%−464,844−22.8%Reduced
Bank of New York Mellon Corp1,559,094$350.6M0.07%−162,840−9.5%Reduced
Brown Brothers Harriman & Co1,511,889$340.0M2.82%−188,938−11.1%Reduced
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.1,488,596$335.0M0.59%+64,365+4.5%Added
Brown Advisory Inc1,383,480$311.1M0.44%+1,277,945+1,210.9%Added
FIL Ltd1,343,041$302.0M0.32%−517,680−27.8%Reduced
Goldman Sachs Group Inc1,334,215$300.0M0.07%+231,389+21.0%Added
Wellington Management Group LLP1,328,566$298.8M0.06%−1,239,091−48.3%Reduced
Findlay Park Partners LLP1,312,901$295.2M2.90%+159,794+13.9%Added
Legal & General Group Plc1,310,974$294.8M0.09%−25,279−1.9%Reduced
California Public Employees Retirement System1,293,545$290.9M0.22%−10,992−0.8%Reduced
Envestnet Asset Management Inc1,278,247$287.5M0.12%−11,093−0.9%Reduced
UBS Asset Management Americas Inc1,127,244$253.5M0.10%+41,671+3.8%Added
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main944,101$212.3M0.28%+18,399+2.0%Added
Bessemer Group Inc937,241$210.8M0.41%+4,576+0.5%Added
Mawer Investment Management Ltd.904,900$203.5M1.04%−22,254−2.4%Reduced
Artisan Partners Limited Partnership847,698$190.6M0.30%−77,146−8.3%Reduced
Bank of America Corp793,340$178.4M0.02%+103,961+15.1%Added
Guinness Asset Management LTD772,103$173.6M3.80%+576+0.1%Added
Voya Investment Management LLC749,407$168.2M0.17%−246,271−24.7%Reduced
Barclays PLC741,330$166.7M0.09%−47,349−6.0%Reduced
American Century Companies Inc728,435$163.8M0.11%+22,275+3.2%Added
Allianz Asset Management GmbH711,928$160.1M0.30%+37,277+5.5%Added
Beck Mack & Oliver LLC707,104$159.0M3.70%+10,065+1.4%Added
Swiss National Bank673,900$151.5M0.11%−15,200−2.2%Reduced
Royal Bank of Canada667,470$150.1M0.04%+184,382+38.2%Added
Unisphere Establishment666,700$149.9M1.55%+666,700New
Stonehage Fleming Financial Services Holdings Ltd638,861$143.7M4.20%+528,641+479.6%Added
Champlain Investment Partners, LLC637,735$143.4M0.85%−9,705−1.5%Reduced
TD Asset Management Inc631,046$141.9M0.14%−5,337−0.8%Reduced
Nuveen Asset Management, LLC618,932$139.2M0.04%+6,157+1.0%Added
Axiom Investors LLC615,746$138.5M1.36%−132,521−17.7%Reduced
Dimensional Fund Advisors LP600,617$135.1M0.04%−34,320−5.4%Reduced
Amundi563,040$127.3M0.06%+40,299+7.7%Added
Burgundy Asset Management Ltd.550,611$123.8M1.37%−478,509−46.5%Reduced
Price T Rowe Associates Inc546,639$122.9M0.02%−7,568−1.4%Reduced
Franklin Resources Inc535,849$120.5M0.06%+73,076+15.8%Added
Global Retirement Partners, LLC515,247$120.3M5.03%+3,401+0.7%Added
Mercer Global Advisors Inc517,479$116.4M0.35%+490,438+1,813.7%Added
Sumitomo Mitsui Trust Holdings, Inc.513,781$115.5M0.09%+1,557+0.3%Added
Fort Pitt Capital Group, LLC488,644$109.9M3.61%−323−0.1%Reduced
Chilton Investment Co LLC484,548$109.0M3.21%+400,453+476.2%Added
Bank Julius Baer & Co. Ltd, Zurich478,232$107.5M0.48%+120,258+33.6%Added
Zacks Investment Management473,051$106.4M1.31%−25,859−5.2%Reduced
Janus Henderson Group PLC437,799$98.5M0.06%+408,809+1,410.2%Added
Cooper Investors Pty Ltd432,902$97.4M5.83%−39,503−8.4%Reduced
Fenimore Asset Management Inc424,830$95.5M2.22%−9,906−2.3%Reduced
Regions Financial Corp419,488$94.3M0.78%−7,334−1.7%Reduced
Mitsubishi UFJ Trust & Banking Corp418,153$94.0M0.22%−66,847−13.8%Reduced
Lord, Abbett & Co. LLC415,535$93.4M0.33%−179,871−30.2%Reduced
Rhumbline Advisers406,417$91.4M0.10%−759−0.2%Reduced
Deutsche Bank AG392,241$88.2M0.05%+87,917+28.9%Added
National Pension Service391,987$88.2M0.12%+8,642+2.3%Added
HSBC Holdings PLC370,598$83.3M0.08%+5,300+1.5%Added
Manufacturers Life Insurance Company, The369,457$83.1M0.05%−16,940−4.4%Reduced
Westfield Capital Management Co LP368,976$83.0M0.48%+7,880+2.2%Added
Credit Suisse AG368,394$82.8M0.08%+15,519+4.4%Added
UBS Group AG361,441$81.3M0.03%+28,359+8.5%Added
Natixis Advisors, L.P.360,753$81.1M0.21%−10,419−2.8%Reduced
Aviva PLC357,898$80.5M0.29%+97,225+37.3%Added
Close Asset Management Ltd353,650$79.5M3.33%+107,424+43.6%Added
California State Teachers Retirement System338,889$76.2M0.11%+7,304+2.2%Added
Westwood Holdings Group Inc.335,342$75.4M0.64%−4,825−1.4%Reduced
Raymond James & Associates327,784$73.7M0.06%−38,630−10.5%Reduced
Old Republic International Corporation314,800$70.8M2.67%−2,100−0.7%Reduced
Kornitzer Capital Management Inc311,374$70.0M1.36%−13,211−4.1%Reduced
Congress Asset Management Co305,125$68.6M0.54%+6,254+2.1%Added
Welch & Forbes LLC301,128$67.7M1.02%+6,478+2.2%Added
New York State Common Retirement Fund275,116$61.9M0.09%−27,299−9.0%Reduced
Woodley Farra Manion Portfolio Management Inc274,876$61.8M3.69%−1,001−0.4%Reduced
Alliancebernstein L.P.267,701$60.2M0.02%−733−0.3%Reduced
Wells Fargo & Company267,495$60.2M0.02%+11,466+4.5%Added
Principal Financial Group Inc265,660$59.7M0.04%−7,061−2.6%Reduced
Mountain Pacific Investment Advisers Inc265,468$59.7M3.70%−12,809−4.6%Reduced
Nissay Asset Management Corp264,745$59.5M0.48%+241,798+1,053.7%Added
Welch Group, LLC255,932$57.6M3.10%−5,412−2.1%Reduced
Bank of Montreal237,452$57.5M0.03%+14,362+6.4%Added
Comerica Bank251,569$56.6M0.26%+820.0%Added
Capital Group Private Client Services, Inc.251,137$56.5M0.58%−3,971−1.6%Reduced
APG Asset Management N.V.276,235$56.2M0.11%+23,010+9.1%Added
T. Rowe Price Investment Management, Inc.237,416$53.4M0.03%+43,415+22.4%Added
King Luther Capital Management Corp236,920$53.3M0.26%+16,714+7.6%Added
Korea Investment CORP223,565$50.3M0.13%+19,066+9.3%Added
Employees Retirement System of Texas223,000$50.1M0.59%00.0%Unchanged