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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
Central Trust Co16,504$3.79M0.07%−697−4.1%Reduced
Barbara Oil Co.16,500$3.79M1.27%00.0%Unchanged
Ballew Advisors, Inc14,915$3.77M1.95%+10+0.1%Added
Carderock Capital Management Inc16,330$3.75M0.82%+16,330New
Kentucky Retirement Systems16,009$3.68M0.09%+16,009New
Pinnacle Financial Partners, Inc.15,968$3.67M0.02%+243+1.5%Added
Sovereign's Capital Management, LLC15,809$3.63M2.42%−189−1.2%Reduced
BFSG, LLC15,804$3.63M0.32%−916−5.5%Reduced
First Nebraska Trust Co15,739$3.61M0.29%+2,135+15.7%Added
Virginia Retirement Systems Et Al15,626$3.59M0.02%+15,626New
Brookmont Capital Management15,421$3.54M1.90%−1,087−6.6%Reduced
Clearstead Advisors, LLC15,319$3.52M0.03%−187−1.2%Reduced
Brinker Capital Investments, LLC15,134$3.47M0.03%+5,539+57.7%Added
Romano Brothers and Company15,089$3.46M0.35%−74−0.5%Reduced
Bessemer Group Inc14,851$3.41M0.00%−778−5.0%Reduced
OpenArc Corporate Advisory, LLC14,709$3.38M0.04%−13,534−47.9%Reduced
Van Hulzen Asset Management, LLC14,687$3.37M0.24%−12,677−46.3%Reduced
Thrivent Financial for Lutherans14,704$3.37M0.01%−1,632−10.0%Reduced
PFG Advisors14,366$3.30M0.17%−3,526−19.7%Reduced
Neuberger Berman Group LLC14,318$3.29M0.00%+1,950+15.8%Added
Norinchukin Bank, The14,312$3.29M0.03%+364+2.6%Added
Hartford Investment Management Co14,229$3.27M0.09%−411−2.8%Reduced
James Investment Research Inc14,208$3.26M0.33%−326−2.2%Reduced
Schroder Investment Management Group14,341$3.26M0.00%−4,686−24.6%Reduced
Coldstream Capital Management Inc14,006$3.22M0.04%−81−0.6%Reduced
Maryland State Retirement & Pension System13,804$3.17M0.05%+1,166+9.2%Added
Oxbow Advisors, LLC13,800$3.17M0.26%00.0%Unchanged
Wealthspire Advisors, LLC13,761$3.16M0.02%−49−0.4%Reduced
Private Management Group Inc13,613$3.13M0.08%−1,463−9.7%Reduced
Apollon Wealth Management, LLC13,496$3.10M0.04%+5,189+62.5%Added
Bleakley Financial Group, LLC13,343$3.06M0.04%+13,343New
Hennion & Walsh Asset Management, Inc.13,175$3.02M0.09%−326−2.4%Reduced
Louisiana State Employees Retirement System13,100$3.01M0.04%00.0%Unchanged
New Mexico Educational Retirement Board12,750$2.93M0.07%+900+7.6%Added
Nelson Capital Management, LLC12,636$2.90M0.32%−272−2.1%Reduced
Elwood Capital Partners LP12,510$2.87M2.09%00.0%Unchanged
Tilia Fiduciary Partners, Inc.12,426$2.85M1.35%+681+5.8%Added
Clio Asset Management LLC12,241$2.81M2.23%+12,241New
AG2R la Mondiale Gestion D'Actifs12,181$2.80M0.10%+1,626+15.4%Added
HB Wealth Management, LLC12,157$2.79M0.02%+2,465+25.4%Added
Squarepoint Ops LLC12,120$2.78M0.01%+5,289+77.4%Added
Natixis12,092$2.78M0.01%−10,432−46.3%Reduced
Omers Administration Corp11,922$2.74M0.02%+1,534+14.8%Added
Mariner, LLC11,893$2.73M0.00%−10,514−46.9%Reduced
Vontobel Holding Ltd.11,882$2.73M0.01%+105+0.9%Added
Bollard Group LLC11,864$2.72M0.08%+32+0.3%Added
Allspring Global Investments Holdings, LLC11,362$2.72M0.00%+99+0.9%Added
Trust Co of Toledo NA11,751$2.70M0.22%−467−3.8%Reduced
Arthur M. Cohen & Associates, LLC11,690$2.68M0.42%−1,248−9.6%Reduced
FJ Capital Management LLC11,571$2.66M0.34%+11,571New
Andra AP-fonden11,507$2.64M0.03%−840−6.8%Reduced
Panagora Asset Management Inc11,443$2.63M0.01%+2,207+23.9%Added
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main11,303$2.59M0.00%−2,350−17.2%Reduced
Jane Street Group, LLC11,294$2.59M0.00%+72+0.6%Added
Boston Partners11,121$2.55M0.00%−797,136−98.6%Reduced
Dorsey & Whitney Trust CO LLC11,026$2.53M0.12%+8,711+376.3%Added
New Age Alpha Advisors, LLC10,782$2.48M0.11%−140−1.3%Reduced
Bridges Investment Management Inc10,705$2.46M0.03%+3,781+54.6%Added
Grimes & Company, Inc.10,609$2.44M0.05%−18−0.2%Reduced
Legacy Wealth Management, LLC10,541$2.42M0.62%−2,950−21.9%Reduced
Tokio Marine Asset Management Co Ltd10,540$2.42M0.07%+534+5.3%Added
Kayne Anderson Rudnick Investment Management LLC10,449$2.40M0.01%−2,002−16.1%Reduced
Meiji Yasuda Life Insurance Co10,443$2.40M0.08%+2,260+27.6%Added
GAM Holding AG10,421$2.39M0.18%−443−4.1%Reduced
Anchor Investment Management, LLC10,389$2.39M0.18%+1,200+13.1%Added
Employees Retirement System of Texas10,388$2.38M0.02%−154,812−93.7%Reduced
Man Group plc10,335$2.37M0.00%+10,335New
Whittier Trust Co9,446$2.36M0.02%−577−5.8%Reduced
Wiley Bros.-Aintree Capital, LLC10,225$2.36M0.01%+2,195+27.3%Added
Leavell Investment Management, Inc.10,244$2.35M0.09%+329+3.3%Added
Crossmark Global Holdings, Inc.10,082$2.31M0.03%−424−4.0%Reduced
Chicago Capital, LLC10,078$2.31M0.06%−1,683−14.3%Reduced
MUFG Securities EMEA plc10,062$2.31M0.02%−32,560−76.4%Reduced
SRS Capital Advisors, Inc.9,978$2.29M0.02%+8,606+627.3%Added
Stonebridge Financial Group, LLC9,972$2.29M0.32%+9,972New
Capital Group Investment Management Pte. Ltd.9,935$2.28M0.34%−7,173−41.9%Reduced
Argo Wealth Advisory, LLC9,853$2.26M1.25%+224+2.3%Added
Alley Investment Management Company, LLC9,809$2.25M0.26%−12,286−55.6%Reduced
Rathbone Brothers plc9,796$2.25M0.01%−25,318−72.1%Reduced
Peapack Gladstone Financial Corp9,755$2.24M0.03%+2,564+35.7%Added
Umb Bank N A9,738$2.24M0.03%+269+2.8%Added
Manhattan West Asset Management, LLC9,451$2.17M0.36%−914−8.8%Reduced
Northwestern Mutual Wealth Management Co9,401$2.16M0.00%−180−1.9%Reduced
MAI Capital Management9,379$2.15M0.01%−649−6.5%Reduced
Ancora Advisors, LLC9,350$2.15M0.04%−333−3.4%Reduced
DRW Securities, LLC9,282$2.13M0.13%+9,282New
Pine Valley Investments Ltd Liability Co9,254$2.12M0.09%+529+6.1%Added
Iams Wealth Management, LLC9,216$2.12M0.64%−2,277−19.8%Reduced
Knollwood Investment Advisory, LLC9,168$2.10M0.19%00.0%Unchanged
Argent Trust Co9,118$2.09M0.06%+5,114+127.7%Added
Summit Trail Advisors, LLC9,114$2.09M0.03%+2,329+34.3%Added
E. Ohman J:or Asset Management AB9,063$2.08M0.05%00.0%Unchanged
Roundview Capital LLC9,040$2.08M0.11%+6,564+265.1%Added
Merit Financial Group, LLC9,034$2.07M0.01%+1,214+15.5%Added
Intech Investment Management LLC8,929$2.05M0.02%−94−1.0%Reduced
Fiduciary Alliance LLC8,833$2.03M0.14%+2,894+48.7%Added
Flputnam Investment Management Co8,681$1.99M0.02%−47−0.5%Reduced
Osmosis Investment Management UK Ltd8,678$1.99M0.09%−8,181−48.5%Reduced
Davenport & Co LLC8,451$1.94M0.01%−1,409−14.3%Reduced
Lido Advisors, LLC8,416$1.93M0.01%−5,932−41.3%Reduced