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Livermore
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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
Northside Capital Management, LLC1,891$434.1K0.04%00.0%Unchanged
Avantra Family Wealth, Inc.1,903$436.9K0.28%+49+2.6%Added
EverSource Wealth Advisors, LLC1,904$437.1K0.01%−551−22.4%Reduced
Green Harvest Asset Management LLC1,908$438.0K0.01%+19+1.0%Added
SmartHarvest Portfolios, LLC1,915$439.6K0.14%+734+62.2%Added
Jump Financial, LLC1,916$439.9K0.00%−277−12.6%Reduced
Boston Family Office LLC1,921$441.0K0.03%+771+67.0%Added
Howard Capital Management Inc.1,926$442.1K0.01%+871+82.6%Added
CSU Producer Resources, Inc.1,927$442.4K1.46%00.0%Unchanged
nVerses Capital, LLC1,929$442.8K0.68%+1,929New
Catalytic Wealth RIA, LLC1,958$449.5K0.03%−238−10.8%Reduced
Banco Santander, S.A.1,983$455.2K0.00%00.0%Unchanged
Aaron Wealth Advisors1,987$456.2K0.02%+271+15.8%Added
Frontier Capital Management Co LLC1,988$456.4K0.00%+199+11.1%Added
Prelude Capital Management, LLC1,990$456.8K0.03%+1,990New
Texas Yale Capital Corp.1,993$457.5K0.01%+1,993New
Johnson Investment Counsel Inc1,999$458.9K0.00%−287−12.6%Reduced
Montchanin Asset Management, LLC2,000$459.0K0.47%00.0%Unchanged
Bank of New Hampshire2,000$459.1K0.10%00.0%Unchanged
Bayban2,000$459.1K0.35%00.0%Unchanged
Crawford Investment Counsel Inc2,009$461.1K0.01%+29+1.5%Added
Advisors Asset Management, Inc.2,023$464.4K0.01%+349+20.8%Added
SCS Capital Management LLC2,040$468.3K0.00%+18+0.9%Added
Gillespie Robinson & Grimm Inc2,057$472.2K0.03%+2,057New
AlphaCore Capital LLC2,057$472.2K0.01%+2,057New
Ewa, LLC2,058$472.5K0.09%+2,058New
Adviser Investments LLC2,062$473.5K0.00%+39+1.9%Added
Allred Capital Management, LLC2,063$473.5K0.16%+17+0.8%Added
MASTERINVEST Kapitalanlage GmbH2,064$473.8K0.04%−664−24.3%Reduced
Ronald Blue Trust, Inc.2,070$475.3K0.00%−94−4.3%Reduced
Fosun International Ltd2,075$476.4K0.11%00.0%Unchanged
Clifford Group, LLC2,096$481.3K0.33%+97+4.9%Added
Journey Advisory Group, LLC2,097$481.4K0.04%−13,733−86.8%Reduced
Lantz Financial LLC2,101$482.3K0.09%+21+1.0%Added
Personal Cfo Solutions, LLC2,134$489.9K0.07%−376−15.0%Reduced
Garde Capital, Inc.2,139$491.1K0.02%00.0%Unchanged
Krilogy Financial LLC2,142$491.7K0.01%+683+46.8%Added
Ingalls & Snyder LLC2,145$492.0K0.01%00.0%Unchanged
Smithfield Trust Co2,154$494.0K0.02%−70−3.1%Reduced
Profund Advisors LLC2,152$494.0K0.01%−64−2.9%Reduced
Foundation Wealth Management, LLC2,165$497.0K0.15%−112−4.9%Reduced
Alps Advisors Inc2,166$497.2K0.00%+2,166New
Smartleaf Asset Management LLC2,195$498.6K0.02%00.0%Unchanged
Drive Wealth Management, LLC2,173$499.0K0.09%+838+62.8%Added
Advyzon Investment Management, LLC2,174$499.1K0.04%−77−3.4%Reduced
Allen Capital Group, LLC2,192$503.2K0.04%+31+1.4%Added
PAX Financial Group, LLC2,196$504.2K0.07%−421−16.1%Reduced
Ameritas Investment Partners, Inc.2,209$507.1K0.01%−89−3.9%Reduced
Texas Capital Bank Wealth Management Services Inc2,209$507.1K0.03%+7+0.3%Added
Live Oak Private Wealth LLC2,215$508.5K0.06%−30−1.3%Reduced
Invesco, LLC2,216$508.7K0.16%−154−6.5%Reduced
Maloon Powers Pitre Higgins & Dennehy, LLC2,217$509.0K0.18%+2,217New
SPWM Advisors LLC2,021$513.2K0.47%+2,021New
Colonial Trust Advisors2,237$513.5K0.04%+127+6.0%Added
First National Bank of Omaha2,277$517.2K0.01%00.0%Unchanged
Choate Investment Advisors2,254$517.5K0.01%−76−3.3%Reduced
111 Capital2,293$526.4K0.09%+903+65.0%Added
Montag A & Associates Inc2,300$528.0K0.02%00.0%Unchanged
Phocas Financial Corp.2,300$528.0K0.07%00.0%Unchanged
Washington Capital Management Inc2,305$529.2K0.35%+2,305New
Pathway Financial Advisors LLC2,100$530.1K0.06%00.0%Unchanged
Haverford Trust Co2,322$533.1K0.00%−129−5.3%Reduced
Summit Financial, LLC2,330$534.9K0.01%+586+33.6%Added
Checchi Capital Advisers, LLC2,361$542.0K0.03%+66+2.9%Added
Erste Asset Management GmbH2,415$548.5K0.00%+441+22.3%Added
Cigna Investments Inc2,394$550.0K0.07%00.0%Unchanged
Citizens Financial Group Inc2,401$551.2K0.01%+7+0.3%Added
Mutual Advisors, LLC2,427$557.2K0.01%+268+12.4%Added
Voya Financial Advisors, Inc.2,457$558.0K0.05%+2,457New
Sumitomo Life Insurance Co2,436$559.2K0.01%−74−2.9%Reduced
Sivia Capital Partners, LLC2,441$560.4K0.07%+2,441New
Commerzbank Aktiengesellschaft2,442$561.0K0.01%−258−9.6%Reduced
Sanibel Captiva Trust Company, Inc.2,456$563.8K0.01%+6+0.2%Added
DDD Partners, LLC2,458$564.3K0.04%+2,458New
Mission Wealth Management, LP2,473$567.7K0.01%+383+18.3%Added
Okabena Investment Services Inc2,494$572.5K0.10%00.0%Unchanged
Compass Ion Advisors, LLC2,498$573.5K0.05%+10.0%Added
PCM Encore, LLC2,504$574.9K0.10%−33−1.3%Reduced
V-Square Quantitative Management LLC2,515$577.4K0.05%−124−4.7%Reduced
HBK Sorce Advisory LLC2,306$578.9K0.01%+582+33.8%Added
Greenleaf Trust2,549$585.2K0.01%−48−1.8%Reduced
Sun Financial Inc2,338$590.1K0.28%−2−0.1%Reduced
Dana Investment Advisors, Inc.2,571$590.2K0.02%+1,297+101.8%Added
Stock Yards Bank & Trust Co2,588$594.1K0.02%00.0%Unchanged
Central Pacific Bank - Trust Division2,600$596.9K0.06%+550+26.8%Added
H&H Retirement Design & Management INC2,240$602.4K0.28%+2,240New
Scotia Capital Inc.2,632$604.4K0.00%−63−2.3%Reduced
Hamilton Capital Partners Inc.2,639$605.8K0.02%00.0%Unchanged
Syon Capital LLC2,643$606.8K0.03%−431−14.0%Reduced
CX Institutional2,651$609.0K0.02%+936+54.6%Added
Bradley Foster & Sargent Inc2,663$611.3K0.01%−27−1.0%Reduced
Intesa Sanpaolo Wealth Management2,665$611.8K0.12%00.0%Unchanged
SFM, LLC2,701$620.0K0.32%−1,907−41.4%Reduced
Bryn Mawr Trust Co2,704$620.8K0.01%+336+14.2%Added
C WorldWide Group Holding A/S2,708$622.0K0.01%−673−19.9%Reduced
Perigon Wealth Management, LLC2,733$627.5K0.01%+1,154+73.1%Added
Woodward Diversified Capital, LLC2,747$630.7K0.28%−113−4.0%Reduced
Integrated Wealth Concepts LLC2,760$633.6K0.00%+159+6.1%Added
Park National Corp2,762$634.1K0.02%00.0%Unchanged
Gabelli Funds LLC2,783$638.9K0.00%00.0%Unchanged