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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, Q1 2026

Institutional positions in Arthur J. Gallagher & Co. as of Mar 31, 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
1,248
−28 vs. Q4 2025
Shares held
229.6M
+35.7M (+18.4%) vs. Q4 2025
Total value
$49.7B
−$464.2M (−0.9%) vs. Q4 2025
New holders
155
432 more added
Sold out
183
473 more reduced

23 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: 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 holdersQ1 2026: 1,248 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 heldQ1 2026: $49.7B
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, Q1 2026

Shares, value and share of portfolio for each institution holding Arthur J. Gallagher & Co.; share changes are against Q4 2025.

Institutions holding AJG in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Beaird Harris Wealth Management, LLC42$9.10K0.00%−32−43.2%Reduced
Sachetta, LLC42$9.10K0.00%+22+110.0%Added
Evolution Wealth Management Inc.43$9.31K0.01%+20+87.0%Added
Meeder Asset Management Inc45$9.75K0.00%−14−23.7%Reduced
MTM Investment Management, LLC45$9.75K0.00%00.0%Unchanged
Kilter Group LLC45$9.75K0.00%+10+28.6%Added
Abound Wealth Management46$9.90K0.00%+15+48.4%Added
Capital Analysts, LLC49$10.0K0.00%+2+4.3%Added
Intentional Wealth Strategies, LLC47$10.2K0.01%+47New
Joseph Group Capital Management48$10.4K0.00%+28+140.0%Added
Pittenger & Anderson Inc50$10.8K0.00%−12,140−99.6%Reduced
West Financial Advisors, LLC53$11.4K0.00%+3+6.0%Added
Scarborough Advisors, LLC54$11.8K0.00%+54New
SBI Securities Co., Ltd.55$11.9K0.00%−26−32.1%Reduced
Hazlett, Burt & Watson, Inc.60$13.0K0.00%00.0%Unchanged
First Command Advisory Services, Inc.61$13.2K0.00%+55+916.7%Added
Raffa Wealth Management, LLC63$13.6K0.00%+23+57.5%Added
Positano Wealth Management Ltd64$13.9K0.01%+64New
Rialto Wealth Management, LLC69$14.9K0.00%+10+16.9%Added
Wilkerson Advisory Group LLC70$15.2K0.01%+38+118.8%Added
Johnson Financial Group, Inc.71$15.4K0.00%−801−91.9%Reduced
JFS Wealth Advisors, LLC72$15.6K0.00%−24−25.0%Reduced
Piscataqua Savings Bank75$16.2K0.01%00.0%Unchanged
Global Wealth Strategies & Associates75$16.2K0.00%+5+7.1%Added
Vision Retirement, LLC76$16.5K0.00%+4+5.6%Added
E Fund Management (Hong Kong) Co., Ltd.77$16.7K0.01%+75+3,750.0%Added
Private Wealth Asset Management, LLC80$17.2K0.00%−2−2.4%Reduced
High Note Wealth, LLC80$17.3K0.00%+4+5.3%Added
Bank of Jackson Hole Trust81$17.5K0.01%00.0%Unchanged
UMA Financial Services, Inc.83$18.0K0.00%+34+69.4%Added
Evergreen Advisors, LLC86$18.6K0.00%+86New
NVWM, LLC87$18.8K0.00%−1−1.1%Reduced
Truvestments Capital LLC88$19.1K0.00%00.0%Unchanged
Dunhill Financial, LLC88$19.3K0.00%−13−12.9%Reduced
Swiss Re Ltd89$19.3K0.12%00.0%Unchanged
Wealth Science Advisors LLC75$19.4K0.01%+75New
Timothy G. Youngquist 2020 Irrevocable Trust92$19.9K0.01%+92New
SJS Investment Consulting Inc.92$19.9K0.00%−29−24.0%Reduced
Strategic Investment Solutions, Inc.93$20.1K0.00%00.0%Unchanged
Bogart Wealth, LLC94$20.4K0.00%+11+13.3%Added
Pin Oak Investment Advisors Inc103$22.0K0.02%00.0%Unchanged
Duncker Streett & Co Inc103$22.3K0.00%−12,345−99.2%Reduced
Kemnay Advisory Services Inc.103$22.3K0.00%+1+1.0%Added
Retirement Wealth Solutions LLC103$22.3K0.01%00.0%Unchanged
DiNuzzo Private Wealth, Inc.107$23.2K0.00%−1−0.9%Reduced
Motco112$24.3K0.00%00.0%Unchanged
Princeton Global Asset Management LLC112$24.3K0.00%00.0%Unchanged
Lodestone Wealth Management LLC123$26.6K0.01%00.0%Unchanged
Parvin Asset Management, LLC125$27.1K0.02%00.0%Unchanged
Financial Life Planners126$27.3K0.02%+126New
Richardson Financial Services Inc.127$27.5K0.02%+77+154.0%Added
Axiom Investment Management LLC127$27.5K0.02%+127New
Delta Asset Management LLC128$27.7K0.00%00.0%Unchanged
Cornerstone National Bank & Trust Co129$27.9K0.01%00.0%Unchanged
Ogorek Anthony Joseph131$28.0K0.01%−4−3.0%Reduced
Solstein Capital, LLC130$28.2K0.01%00.0%Unchanged
Glen Eagle Advisors, LLC130$28.2K0.00%00.0%Unchanged
J.Safra Asset Management Corp131$28.4K0.00%−3,100−95.9%Reduced
Hollencrest Capital Management133$28.8K0.00%00.0%Unchanged
Cassaday & Co Wealth Management LLC133$28.8K0.00%+133New
Prestige Wealth Management Group LLC134$29.0K0.01%−1−0.7%Reduced
Horizon Financial Services, LLC134$29.0K0.01%+113+538.1%Added
Basecamp Wealth Advisors LLC135$29.2K0.01%00.0%Unchanged
Westside Investment Management, Inc.136$29.6K0.00%00.0%Unchanged
MV Capital Management, Inc.137$29.7K0.00%+5+3.8%Added
Thurston, Springer, Miller, Herd & Titak, Inc.138$29.9K0.01%−31−18.3%Reduced
CVA Family Office, LLC139$30.1K0.00%−44−24.0%Reduced
Disciplina Capital Management LLC143$31.1K0.00%00.0%Unchanged
Twin Peaks Wealth Advisors, LLC144$31.2K0.01%+144New
Mascoma Wealth Management LLC145$31.4K0.01%+5+3.6%Added
Farmers & Merchants Investments Inc146$31.6K0.00%00.0%Unchanged
Annis Gardner Whiting Capital Advisors, LLC147$31.8K0.01%−62−29.7%Reduced
City State Bank150$32.5K0.01%00.0%Unchanged
WS Portfolio Advisory, LLC150$32.5K1.01%+150New
DT Investment Partners, LLC152$32.9K0.00%00.0%Unchanged
Root Financial Partners, LLC163$35.3K0.00%−112−40.7%Reduced
Paladin Advisory Group, LLC167$36.2K0.03%−33−16.5%Reduced
Boreal Capital Management LLC170$36.8K0.03%00.0%Unchanged
Hallmark Capital Management Inc174$37.7K0.00%00.0%Unchanged
Avalon Trust Co185$40.1K0.00%+185New
Steigerwald, Gordon & Koch Inc.192$41.6K0.00%−72−27.3%Reduced
Entrust Financial LLC197$42.7K0.03%00.0%Unchanged
Wall Street Financial Group, Inc.198$42.9K0.03%+198New
Rossby Financial, LCC200$43.3K0.01%+133+198.5%Added
SOA Wealth Advisors, LLC.200$43.3K0.01%+100+100.0%Added
Deseret Mutual Benefit Administrators203$44.0K0.01%−86−29.8%Reduced
Walleye Capital LLC204$44.2K0.00%+199+3,980.0%Added
Lavaca Capital LLC205$44.4K0.01%00.0%Unchanged
Golden State Equity Partners212$46.1K0.00%+212New
Exchange Traded Concepts, LLC215$46.6K0.00%+38+21.5%Added
Chilton Capital Management LLC217$47.0K0.00%00.0%Unchanged
Covestor Ltd221$48.0K0.03%−16−6.8%Reduced
Signature Equity Partners, LLC222$48.1K0.03%−365−62.2%Reduced
Owl Creek Wealth Partners LLC235$50.9K0.02%+235New
Valley National Advisers Inc237$51.0K0.01%−25−9.5%Reduced
Broadwater Capital Management LLC200$51.8K0.04%00.0%Unchanged
EFG International AG241$52.2K0.00%+178+282.5%Added
Thompson Investment Management, Inc.243$52.6K0.01%+243New
Vanguard National Trust Co245$53.1K0.00%+245New
Atwood & Palmer Inc255$55.2K0.00%−250−49.5%Reduced