ARTHUR J GALLAGHER & CO (AJG) Institutional Ownership Changes & 13F Activity

ARTHUR J GALLAGHER & CO (AJG) institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC 13F filings (Q1 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Dodge & Cox Stock Fund, Eagle Capital Management, Viking Global Investors, Renaissance Technologies LLC, and Sequoia Financial Advisors.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Dodge & Cox Stock FundBuy6,474,3307,354,915$1,592,927,491
Q1 2026Eagle Capital ManagementBuy2,665,5722,665,572$577,309,518
Q1 2026Viking Global InvestorsSell-313,536727,441$157,549,172
Q1 2026Renaissance Technologies LLCBuy72,28076,600$16,590,028
Q1 2026Sequoia Financial AdvisorsBuy7,239139,833$30,285,024
Q1 2026Torray FundBuy5,85529,035$6,288,404
Q1 2026Ariel Appreciation FundBuy4,40719,764$4,280,487
Q4 2025Dodge & Cox Stock FundBuy880,585880,585$227,886,592
Q4 2025Renaissance Technologies LLCSell-396,1804,320$1,117,973
Q4 2025Viking Global InvestorsBuy315,1821,040,977$269,394,438
Q4 2025Sequoia Financial AdvisorsBuy4,933132,594$34,314,110
Q4 2025Ariel Appreciation FundBuy1,71215,357$3,974,238
Q4 2025Torray FundSell-1,20723,180$5,998,757
Q3 2025Renaissance Technologies LLCBuy50,900400,500$124,050,870
Q3 2025Ariel Appreciation FundBuy13,64513,645$4,226,402
Q3 2025Sequoia Financial AdvisorsBuy5,878127,661$39,541,587
Q3 2025Torray FundBuy5,32524,387$7,553,629
Q2 2025Viking Global InvestorsBuy59,243725,795$232,341,495
Q2 2025Renaissance Technologies LLCBuy30,600349,600$111,913,952
Q2 2025Sequoia Financial AdvisorsBuy4,992121,783$38,985,025
Q2 2025Torray FundSell-1,34919,062$6,102,127
Q2 2025Mairs & Power Growth FundSell-40760$243,291
Q1 2025Viking Global InvestorsSell-291,268666,552$230,120,412
Q1 2025Renaissance Technologies LLCBuy145,800319,000$110,131,560
Q1 2025Sequoia Financial AdvisorsBuy36,113116,791$40,320,862
Q1 2025Mairs & Power Growth FundSell-976800$276,192
Q1 2025Torray FundSell-66020,411$7,046,694
Q4 2024Renaissance Technologies LLCBuy82,500173,200$49,162,820
Q4 2024Sequoia Financial AdvisorsBuy15,34080,678$22,900,341
Q4 2024Mairs & Power Growth FundBuy2761,776$504,118

Frequently asked questions about AJG activity

  • Which institutional owners are buying AJG?

    Institutional owners buying AJG include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in AJG activity?

    "Buy" means an investor increased their reported position in AJG compared to the prior reporting period. This reflects growing exposure to ARTHUR J GALLAGHER & CO (AJG) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in AJG increasing?

    Institutional interest in AJG can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.

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