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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 2021

Institutional positions in Arthur J. Gallagher & Co. as of Mar 31, 2021. 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
732
No complete 13F data for Q4 2020
Shares held
165.4M
No complete 13F data for Q4 2020
Total value
$20.6B
No complete 13F data for Q4 2020

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 2021: 732 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: 1,359 institutionsQ2 2025: 1,379 institutionsQ3 2025: 1,341 institutionsQ4 2025: 1,299 institutionsQ1 2026: 1,248 institutionsQ2 2026: 1,295 institutions
Value heldQ1 2021: $20.6B
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 20251,341$69.7B
Q2 20251,379$72.9B
Q1 20251,359$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 2021

Shares, value and share of portfolio for each institution holding Arthur J. Gallagher & Co..

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.

Institutions holding AJG in Q1 2021
InstitutionSharesValue% of portfolioChange in sharesAction
BNP Paribas Arbitrage, SA193,366$24.1M0.05%––
William Blair Investment Management, LLC189,172$23.6M0.08%––
Robeco Institutional Asset Management B.V.182,915$22.8M0.06%––
Great West Life Assurance Co183,708$22.8M0.06%––
Prudential Financial Inc179,214$22.4M0.03%––
Russell Investments Group, Ltd.173,789$21.7M0.04%––
New York State Teachers Retirement System173,843$21.7M0.05%––
GWM Advisors LLC171,800$21.4M0.64%––
Allianz Asset Management GmbH170,562$21.3M0.02%––
NFJ Investment Group, LLC166,084$20.7M0.42%––
Chartwell Investment Partners, LLC165,063$20.6M0.62%––
US Bancorp162,477$20.3M0.04%––
Professional Advisory Services Inc154,682$19.3M2.96%––
Vaughan Nelson Investment Management, L.P.147,249$18.4M0.20%––
Chevy Chase Trust Holdings, Inc.130,064$16.2M0.06%––
Guggenheim Capital LLC127,903$16.0M0.11%––
Prospector Partners LLC126,800$15.8M2.03%––
Toronto Dominion Bank125,533$15.7M0.03%––
State of New Jersey Common Pension Fund D125,338$15.6M0.05%––
Natixis Advisors, L.P.124,931$15.6M0.08%––
PhiloSmith Capital Corp122,725$15.3M6.71%––
Rathbone Brothers plc118,270$14.8M0.19%––
Gillson Capital LP117,226$14.6M1.23%––
Capital Bank & Trust Co116,773$14.6M0.17%––
Healthcare of Ontario Pension Plan Trust Fund114,631$14.3M0.04%––
North Point Portfolio Managers Corp114,611$14.3M2.07%––
SEI Investments Co114,514$14.3M0.04%––
Susquehanna Fundamental Investments, LLC114,170$14.2M0.24%––
Truist Financial Corp111,117$13.9M0.02%––
Schroder Investment Management Group108,866$13.6M0.02%––
AQR Capital Management LLC108,750$13.6M0.02%––
Westpac Banking Corp107,714$13.4M0.15%––
Bank of Nova Scotia106,163$13.2M0.03%––
AMP Capital Investors Ltd105,946$13.2M0.07%––
Public Employees Retirement System of Ohio105,655$13.2M0.05%––
State of Wisconsin Investment Board104,649$13.1M0.03%––
Brown Advisory Inc104,473$13.0M0.02%––
Asset Management One Co.,Ltd.103,543$12.9M0.05%––
Thomasville National Bank158,091$12.9M2.40%––
Janus Henderson Group PLC103,115$12.9M0.01%––
Stifel Financial Corp101,727$12.7M0.02%––
Lawson Kroeker Investment Management Inc100,247$12.5M4.28%––
Moody National Bank Trust Division99,412$12.4M0.29%––
Pictet Asset Management Ltd98,443$12.3M0.01%––
Rafferty Asset Management, LLC96,251$12.0M0.08%––
American National Insurance Co96,088$12.0M0.49%––
ARS Investment Partners, LLC90,752$11.3M1.32%––
Gradient Investments LLC88,799$11.1M0.36%––
KBC Group NV88,635$11.1M0.04%––
Voya Investment Management LLC88,454$11.0M0.02%––
Blair William & Co83,979$10.5M0.04%––
Standard Life Aberdeen plc81,811$10.2M0.02%––
Brewin Dolphin Ltd81,160$10.1M0.54%––
Andra AP-fonden79,600$9.93M0.22%––
Capitolis Advisors LLC75,411$9.41M0.16%––
Sonora Investment Management, LLC74,328$9.27M0.73%––
Man Group plc73,999$9.23M0.04%––
BNP PARIBAS ASSET MANAGEMENT Holding S.A.73,624$9.19M0.04%––
Pinebridge Investments, L.P.73,617$9.19M0.12%––
Advisor Group Holdings, Inc.73,531$9.18M0.02%––
Calamos Advisors LLC73,083$9.12M0.05%––
Treasurer of the State of North Carolina72,981$9.11M0.06%––
Mackenzie Financial Corp72,498$9.05M0.01%––
Bahl & Gaynor Inc71,941$8.98M0.06%––
Fort Washington Investment Advisors Inc71,740$8.95M0.09%––
PGGM Investments69,543$8.68M0.04%––
MML Investors Services, LLC68,688$8.57M0.08%––
Royal London Asset Management Ltd68,257$8.52M0.04%––
Federation des caisses Desjardins du Quebec67,131$8.38M0.09%––
Newport Capital Group, LLC66,086$8.25M6.87%––
Baldwin Brothers Inc63,406$7.91M0.94%––
Swedbank AB61,790$7.71M0.02%––
Nicholas Company, Inc.61,500$7.67M0.14%––
Verity & Verity, LLC55,321$7.61M1.23%––
American International Group, Inc.60,464$7.54M0.03%––
Bridgewater Associates, LP60,405$7.54M0.07%––
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund60,219$7.51M0.07%––
Creative Planning60,217$7.51M0.02%––
Kings Point Capital Management59,938$7.48M0.74%––
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.59,804$7.46M0.05%––
Rench Wealth Management, Inc.58,200$7.26M3.78%––
Atlantic Union Bankshares Corp58,119$7.25M0.74%––
NN Investment Partners Holdings N.V.56,924$7.10M0.04%––
DekaBank Deutsche Girozentrale56,320$7.08M0.02%––
Zurcher Kantonalbank (Zurich Cantonalbank)56,714$7.08M0.04%––
CIBC World Markets Corp55,538$6.93M0.04%––
Arizona State Retirement System55,451$6.92M0.06%––
Tompkins Financial Corp55,071$6.87M1.16%––
Ilmarinen Mutual Pension Insurance Co54,000$6.74M0.08%––
LPL Financial LLC52,769$6.58M0.01%––
Swiss Life Asset Management Ltd52,484$6.55M0.09%––
ProShare Advisors LLC51,832$6.47M0.02%––
Millennium Management LLC50,546$6.31M0.01%––
State of Michigan Retirement System48,654$6.07M0.04%––
Qube Research & Technologies Ltd46,325$5.78M0.10%––
MetLife Investment Management46,168$5.76M0.05%––
Korea Investment CORP45,800$5.71M0.02%––
Running Oak Capital LLC45,740$5.71M1.74%––
Stratos Wealth Partners, LTD.45,118$5.63M0.16%––
Smithbridge Asset Management Inc45,100$5.63M2.41%––