Aon Plc (AON) Institutional Ownership Changes & 13F Activity

Aon Plc (AON) 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 Eagle Capital Management, Baupost Group, Polen Capital Management, Meritage Group, and Viking Global Investors.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2023Sequoia Financial AdvisorsSell-2417,153$2,255,206
Q4 2022Eagle Capital ManagementSell-1,043,4962,327,202$698,486,408
Q4 2022Polen Capital ManagementSell-66,219998,370$299,650,721
Q4 2022Renaissance Technologies LLCSell-35,20051,800$15,547
Q4 2022Cantillon Capital ManagementSell-21,3281,200,586$360,343,882
Q4 2022Sequoia Financial AdvisorsBuy6,0147,394$2,219,171
Q4 2022Jensen Investment ManagementBuy3,6403,640$1,092,510
Q3 2022Eagle Capital ManagementSell-401,5163,370,698$902,909
Q3 2022Renaissance Technologies LLCSell-151,10087,000$23,305
Q3 2022Polen Capital ManagementBuy130,2501,064,589$285,171
Q3 2022Cantillon Capital ManagementSell-11,4771,221,914$327,315
Q3 2022Sequoia Financial AdvisorsSell-4731,380$370
Q2 2022Viking Global InvestorsSell-888,441704,639$190,027
Q2 2022Eagle Capital ManagementSell-716,2773,772,214$1,017,291
Q2 2022Polen Capital ManagementSell-50,357934,339$251,973
Q2 2022Cantillon Capital ManagementSell-6,6091,233,391$332,621
Q2 2022Renaissance Technologies LLCSell-2,600238,100$64,211
Q2 2022Sequoia Financial AdvisorsBuy2201,853$500
Q1 2022Eagle Capital ManagementSell-191,5464,488,491$1,461,587
Q1 2022Viking Global InvestorsBuy82,5631,593,080$518,755
Q1 2022Polen Capital ManagementSell-57,712984,696$320,647
Q1 2022Renaissance Technologies LLCBuy37,000240,700$78,379
Q1 2022Cantillon Capital ManagementBuy35,9101,240,000$403,782
Q1 2022Sequoia Financial AdvisorsBuy9371,633$531
Q1 2022Disciplined Growth InvestorsSell-3461,939$631
Q4 2021Eagle Capital ManagementSell-1,666,6794,680,037$1,406,632
Q4 2021Viking Global InvestorsSell-1,392,5371,510,517$454,001
Q4 2021Renaissance Technologies LLCBuy93,800203,700$61,224
Q4 2021Cantillon Capital ManagementSell-89,0521,204,090$361,902
Q4 2021Polen Capital ManagementBuy20,1641,042,408$313,306

Frequently asked questions about AON activity

  • Which institutional owners are buying AON?

    Institutional owners buying AON 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 AON activity?

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

  • Is institutional interest in AON increasing?

    Institutional interest in AON 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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