← Top Holdings

AONAon PLC

CUSIP: G0403H108

🔥 Bought by 2 superinvestors this quarter

14

Guru Owners

$4.28B

Total Value Held

12.9M

Total Shares

Investor	Fund	Shares	Value▼	% of Portfolio	Rpt Price	Period
Dodge & Cox	Dodge & Cox	8593144	$2.85B	1.49%	$331.69	Q2 2026
Andreas Halvorsen	Viking Global Investors	1151269	$381.9M	1.09%	$331.69	Q2 2026
William Von Mueffling	Cantillon Capital Management	1095574	$353.6M	2.35%	$322.78	Q1 2026
Seth Klarman	Baupost Group	687000	$227.9M	4.21%	$331.69	Q2 2026
Steven Romick	First Pacific Advisors	681367	$226.0M	2.79%	$331.69	Q2 2026
Wallace Weitz	Weitz Investment Management	213860	$70.9M	4.91%	$331.69	Q2 2026
Polen Capital	Polen Capital Management	164035	$54.4M	0.47%	$331.69	Q2 2026
Tom Gayner	Markel Group	135800	$45.0M	0.34%	$331.69	Q2 2026
Wally Obermeyer	Obermeyer Wealth Partners	98034	$32.5M	1.33%	$331.69	Q2 2026
Boykin Curry	Eagle Capital Management	44973	$14.9M	0.05%	$331.69	Q2 2026
Jensen Investment Management	Jensen Investment Management	25789	$8.6M	0.21%	$331.69	Q2 2026
Ray Dalio	Bridgewater Associates	15663	$5.2M	0.02%	$331.69	Q2 2026
Donald Yacktman	Yacktman Asset Management	12915	$4.3M	0.05%	$331.69	Q2 2026
David Katz	Matrix Asset Advisors	648	$215K	0.02%	$331.69	Q2 2026

$2.85B

1.49%

Andreas Halvorsen

$381.9M

1.09%

William Von Mueffling

$353.6M

2.35%

$227.9M

4.21%

$226.0M

2.79%

$70.9M

4.91%

$54.4M

0.47%

$45.0M

0.34%

Wally Obermeyer

$32.5M

1.33%

$14.9M

0.05%

Jensen Investment Management

$8.6M

0.21%

$5.2M

0.02%

Donald Yacktman

$4.3M

0.05%

$215K

0.02%

Who owns AON? Full holder list and ownership history →

📊 Holdings Over Time

How superinvestor ownership has changed across quarters

Quarter-by-Quarter Activity

Q2 '2613 owners · $3.92B

INCREASEDDodge & Cox$2.85B

INCREASEDAndreas Halvorsen$381.9M

REDUCEDSeth Klarman$227.9M

REDUCEDSteven Romick$226.0M

INCREASEDPolen Capital$54.4M

REDUCEDWally Obermeyer$32.5M

REDUCEDBoykin Curry$14.9M

INCREASEDJensen Investment Management$8.6M

REDUCEDRay Dalio$5.2M

SOLDWilliam Von Mueffling

Q1 '2614 owners · $4.55B

INCREASEDDodge & Cox$2.62B

REDUCEDPolen Capital$437.1M

REDUCEDWilliam Von Mueffling$353.6M

REDUCEDAndreas Halvorsen$350.9M

NEWSeth Klarman$248.2M

INCREASEDSteven Romick$227.0M

INCREASEDBoykin Curry$149.6M

REDUCEDWallace Weitz$69.0M

INCREASEDTom Gayner$43.8M

INCREASEDWally Obermeyer$31.7M

INCREASEDJensen Investment Management$8.3M

INCREASEDRay Dalio$6.5M

SOLDWarren Buffett

SOLDBill Nygren

Q4 '2515 owners · $6.61B

INCREASEDDodge & Cox$2.77B

REDUCEDWarren Buffett$1.27B

REDUCEDBoykin Curry$800.8M

REDUCEDPolen Capital$651.5M

INCREASEDWilliam Von Mueffling$438.6M

INCREASEDAndreas Halvorsen$276.5M

INCREASEDSteven Romick$231.7M

INCREASEDWallace Weitz$77.2M

INCREASEDTom Gayner$47.3M

INCREASEDWally Obermeyer$34.7M

REDUCEDRay Dalio$4.7M

INCREASEDJensen Investment Management$3.7M

REDUCEDBill Nygren$247K

Q3 '2515 owners · $5.75B

NEWDodge & Cox$1.24B

REDUCEDPolen Capital$887.9M

REDUCEDBoykin Curry$814.5M

NEWAndreas Halvorsen$504.4M

REDUCEDWilliam Von Mueffling$439.9M

INCREASEDSteven Romick$233.4M

REDUCEDWally Obermeyer$36.0M

REDUCEDJensen Investment Management$3.6M

NEWRay Dalio$2.0M

INCREASEDBill Nygren$251K

Q2 '2512 owners · $4.10B

REDUCEDPolen Capital$979.5M

REDUCEDBoykin Curry$814.9M

REDUCEDWilliam Von Mueffling$445.0M

REDUCEDSteven Romick$232.6M

INCREASEDTom Gayner$46.3M

REDUCEDWally Obermeyer$36.6M

INCREASEDDonald Yacktman$4.6M

INCREASEDJensen Investment Management$3.5M

NEWBill Nygren$249K

Q1 '2512 owners · $4.86B

NEWPolen Capital$1.20B

REDUCEDBoykin Curry$1.05B

NEWWilliam Von Mueffling$512.3M

REDUCEDSteven Romick$271.4M

REDUCEDWallace Weitz$85.2M

INCREASEDTom Gayner$51.7M

REDUCEDWally Obermeyer$41.9M

NEWJensen Investment Management$3.5M

REDUCEDRay Dalio$1.2M

REDUCEDDavid Katz$259K

SOLDAndreas Halvorsen

🏛️ Congressional Trades

AON: Held by 14 superinvestors · 27 congress member trades

$1,001 - $15,0002025-11-10

$1,001 - $15,0002025-11-03

SELLMichael McCaulR

$1,001 - $15,0002025-10-27

$1,001 - $15,0002025-10-21

$1,001 - $15,0002025-10-16

$1,001 - $15,0002025-10-07

$1,001 - $15,0002025-08-26

SELLMichael McCaulR

$1,001 - $15,0002025-08-21

$1,001 - $15,0002025-08-04

$1,001 - $15,0002025-07-25

SELLMichael McCaulR

$1,001 - $15,0002025-06-16

BUYThomas Kean JrR

$1,001 - $15,0002025-05-27

BUYThomas H. KeanR

$1,001 - $15,0002025-05-27

SELLJefferson ShreveR

$15,001 - $50,0002025-05-08

$1,001 - $15,0002025-04-25

$15,001 - $50,0002025-04-25

SELLMichael McCaulR

$1,001 - $15,0002025-04-14

SELLMichael McCaulR

$1,001 - $15,0002025-04-02

SELLMichael McCaulR

$15,001 - $50,0002025-03-26

SELLMichael McCaulR

$15,001 - $50,0002025-03-19