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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, Q2 2026

Institutional positions in Arthur J. Gallagher & Co. as of Jun 30, 2026. 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
1,295
+58 vs. Q1 2026
Shares held
238.5M
+10.9M (+4.8%) vs. Q1 2026
Total value
$54.7B
+$5.48B (+11.1%) vs. Q1 2026
New holders
164
464 more added
Sold out
106
483 more reduced

11 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: 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 holdersQ2 2026: 1,295 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 heldQ2 2026: $54.7B
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, Q2 2026

Shares, value and share of portfolio for each institution holding Arthur J. Gallagher & Co.; share changes are against Q1 2026.

Institutions holding AJG in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Cetera Investment Advisers82,024$18.8M0.02%+11,621+16.5%Added
Nykredit A/S81,908$18.8M0.07%+81,908New
Marsico Capital Management LLC81,899$18.8M0.49%+81,899New
Lansforsakringar Fondforvaltning AB (publ)77,934$17.9M0.08%−4,154−5.1%Reduced
Resona Asset Management Co.,Ltd.77,243$17.7M0.08%−4,634−5.7%Reduced
Credit Agricole S A76,382$17.5M0.04%−38,877−33.7%Reduced
Mountain Pacific Investment Advisers Inc75,408$17.3M2.72%−82−0.1%Reduced
Mn Services Vermogensbeheer B.V.74,921$17.2M0.13%−23,000−23.5%Reduced
Rafferty Asset Management, LLC74,837$17.2M0.04%+12,357+19.8%Added
Ilmarinen Mutual Pension Insurance Co74,414$17.1M0.12%+26,314+54.7%Added
Public Sector Pension Investment Board73,397$16.8M0.04%+300+0.4%Added
BNP PARIBAS ASSET MANAGEMENT Holding S.A.73,199$16.8M0.02%−8,186−10.1%Reduced
Czech National Bank73,124$16.8M0.09%+3,138+4.5%Added
Mirae Asset Global Investments Co., Ltd.72,507$16.6M0.03%+6,537+9.9%Added
Madison Asset Management, LLC72,448$16.6M0.20%+72,448New
CIBC Asset Management Inc71,689$16.5M0.04%−768−1.1%Reduced
Arizona State Retirement System71,341$16.4M0.08%+970+1.4%Added
Blair William & Co71,325$16.4M0.04%−3,623−4.8%Reduced
US Bancorp70,413$16.2M0.02%−2,072−2.9%Reduced
Evelyn Partners Group Ltd69,686$16.0M0.30%+69,686New
Investment Management Corp of Ontario69,186$15.9M0.20%−1,940−2.7%Reduced
Baldwin Brothers Inc68,374$15.7M1.03%−560−0.8%Reduced
Beacon Pointe Advisors, LLC67,904$15.6M0.07%−2,484−3.5%Reduced
Picton Mahoney Asset Management67,626$15.5M0.14%+44,563+193.2%Added
Lawson Kroeker Investment Management Inc66,344$15.2M4.22%−390−0.6%Reduced
State of Michigan Retirement System65,787$15.1M0.07%−1,300−1.9%Reduced
North Point Portfolio Managers Corp65,400$15.0M2.48%−1,082−1.6%Reduced
Nicola Wealth Management Ltd.65,400$15.0M1.73%+22,500+52.4%Added
Cornerstone Advisors, LLC63,877$14.7M0.48%−5,157−7.5%Reduced
Point72 Asset Management, L.P.63,010$14.5M0.02%+32,130+104.0%Added
Nisa Investment Advisors, LLC62,544$14.4M0.04%−542−0.9%Reduced
Vident Advisory, LLC61,671$14.2M0.11%+6,921+12.6%Added
Blackstone Group Inc.61,499$14.1M0.05%+48,131+360.0%Added
Teachers Retirement System of the State of Kentucky61,089$14.0M0.10%+5,325+9.5%Added
Varma Mutual Pension Insurance Co60,550$13.9M0.07%+3,000+5.2%Added
Premier Fund Managers Ltd59,733$13.6M1.23%−39,531−39.8%Reduced
MetLife Investment Management58,740$13.5M0.06%−1,945−3.2%Reduced
Payden & Rygel58,660$13.5M1.03%+58,660New
DnB Asset Management AS58,548$13.4M0.04%+1,917+3.4%Added
Interval Partners, LP58,066$13.3M0.43%+18,730+47.6%Added
United Capital Financial Advisers, LLC57,766$13.3M0.07%−14,530−20.1%Reduced
Trillium Asset Management, LLC57,579$13.2M0.41%+18,798+48.5%Added
IFM Investors Pty Ltd57,035$13.1M0.09%+6,682+13.3%Added
Teacher Retirement System of Texas56,943$13.1M0.04%+11,210+24.5%Added
Commonwealth of Pennsylvania Public School Empls Retrmt Sys56,742$13.0M0.06%−3,119−5.2%Reduced
Commerce Bank56,398$12.9M0.06%−1,664−2.9%Reduced
Wealth Enhancement Advisory Services, LLC49,438$12.5M0.02%+9,811+24.8%Added
ProShare Advisors LLC53,928$12.4M0.02%+2,133+4.1%Added
PBU - The Pension Fund of Early Childhood & Youth Educators53,857$12.4M0.28%+6,139+12.9%Added
iA Global Asset Management Inc.53,410$12.3M0.15%+53,410New
Canada Pension Plan Investment Board52,824$12.1M0.01%−60,008−53.2%Reduced
GuoLine Advisory Pte Ltd52,400$12.0M1.12%00.0%Unchanged
Rench Wealth Management, Inc.52,366$12.0M3.23%+594+1.1%Added
Savant Capital, LLC48,595$11.9M0.04%+42,157+654.8%Added
Newport Capital Group, LLC51,261$11.8M6.61%−45−0.1%Reduced
Running Oak Capital LLC49,796$11.4M1.95%−12,705−20.3%Reduced
Philadelphia Financial Management of San Francisco, LLC49,500$11.4M3.12%+16,500+50.0%Added
Abn Amro Investment Solutions49,356$11.3M0.10%+36,855+294.8%Added
Capital International Ltd48,304$11.1M0.36%−31,663−39.6%Reduced
Segment Wealth Management, LLC47,937$11.0M0.57%+1,805+3.9%Added
Tompkins Financial Corp47,397$10.9M0.76%−170.0%Reduced
Tocqueville Asset Management L.P.47,168$10.8M0.14%+630+1.4%Added
Banco Bilbao Vizcaya Argentaria, S.A.47,030$10.8M0.07%−8,330−15.0%Reduced
Daiwa Securities Group Inc.46,473$10.7M0.02%+2,567+5.8%Added
Baird Financial Group, Inc.46,221$10.6M0.01%+3,458+8.1%Added
Xponance, Inc.45,526$10.5M0.06%−989−2.1%Reduced
State of Alaska, Department of Revenue44,742$10.3M0.10%−2,180−4.6%Reduced
Ferguson Wellman Capital Management, Inc44,277$10.2M0.12%−3,845−8.0%Reduced
Amalgamated Bank44,265$10.2M0.07%−2,346−5.0%Reduced
HighTower Advisors, LLC44,081$10.1M0.01%−3,625−7.6%Reduced
Busey Wealth Management44,078$10.1M0.25%+240+0.5%Added
Cerity Partners LLC43,956$10.1M0.01%−2,754−5.9%Reduced
Renaissance Investment Group LLC43,844$10.1M1.98%+2,000+4.8%Added
USS Investment Management Ltd43,849$10.1M0.04%+223+0.5%Added
Cardinal Capital Management, Inc.43,710$10.0M0.24%+543+1.3%Added
Clark Capital Management Group, Inc.43,612$10.0M0.05%+6,137+16.4%Added
Kestra Advisory Services, LLC42,881$9.84M0.03%+1,564+3.8%Added
GW&K Investment Management, LLC42,795$9.82M0.08%−289−0.7%Reduced
Mercer Global Advisors Inc42,107$9.67M0.01%−5,503−11.6%Reduced
NEOS Investment Management LLC41,756$9.59M0.04%+5,073+13.8%Added
Rakuten Investment Management, Inc.42,030$9.55M0.03%+3,901+10.2%Added
Talbot Financial, LLC41,390$9.50M0.70%+521+1.3%Added
Nicholas Company, Inc.40,710$9.35M0.17%+40,710New
Pathstone Holdings, LLC40,375$9.29M0.03%+2,461+6.5%Added
Utah Retirement Systems38,709$8.89M0.08%−2,514−6.1%Reduced
British Columbia Investment Management Corp38,574$8.86M0.06%−16,940−30.5%Reduced
Verity & Verity, LLC38,433$8.82M0.61%−240−0.6%Reduced
Police & Firemen's Retirement System of New Jersey38,236$8.78M0.07%−763−2.0%Reduced
Glenmede Trust Co NA37,580$8.63M0.04%+11,880+46.2%Added
Allianz Asset Management GmbH37,355$8.58M0.01%−3,372−8.3%Reduced
Commonwealth Equity Services, LLC37,074$8.51M0.01%+1,343+3.8%Added
New York Life Investment Management LLC37,053$8.51M0.06%−1,001−2.6%Reduced
BI Asset Management Fondsmaeglerselskab A/S36,476$8.37M0.07%+6,010+19.7%Added
Sumitomo Mitsui DS Asset Management Company, Ltd36,123$8.29M0.06%+456+1.3%Added
PensionDanmark Pensionsforsikringsaktieselskab35,708$8.20M0.07%+3,100+9.5%Added
Cincinnati Specialty Underwriters Insurance CO35,671$8.19M1.82%00.0%Unchanged
Wealthfront Advisers LLC35,646$8.18M0.02%+6,527+22.4%Added
Hamilton Point Investment Advisors, LLC33,955$7.80M1.10%−339−1.0%Reduced
Janney Montgomery Scott LLC33,864$7.77M0.02%+11,402+50.8%Added
Swiss Life Asset Management Ltd33,659$7.73M0.03%+2,653+8.6%Added