Aon Ownership | Who Owns Aon?

Overview Forecast RevenueFinancials Chart Transcripts

Aon Ownership Summary

Aon is owned by 85.58% institutional investors, 1.17% insiders, and 13.25% retail investors. Vanguard group is the largest institutional shareholder, holding 9.38% of AON shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 3.03% of its assets in Aon shares.

AON Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Aon	85.58%	1.17%	13.25%
Sector	Financial Services Stocks	37.05%	15.56%	47.39%
Industry	Insurance Brokers Stocks	28.60%	18.56%	52.84%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vanguard group	20.17M	9.38%	$7.12B
Blackrock	15.27M	7.67%	$4.48B
Blackrock funding, inc. /de	16.15M	7.51%	$5.21B
Capital world investors	11.48M	5.34%	$3.70B
State street	9.22M	4.29%	$2.98B
Massachusetts financial services co /ma/	8.36M	3.89%	$2.75B
Dodge & cox	8.12M	3.77%	$2.62B
Morgan stanley	6.37M	2.96%	$2.06B
Jpmorgan chase	5.64M	2.62%	$1.83B
Geode capital management	5.24M	2.44%	$1.69B

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Hps investment partners	4.34M	99.01%	$1.73B
Lfl advisers	126.67K	12.30%	$40.89M
Aryeh capital management	32.30K	9.64%	$11.52M
Veritas asset management llp	1.52M	8.31%	$490.72M
Meritage group lp	680.17K	8.28%	$219.54M
Lts one management lp	57.33K	7.75%	$18.50M
Fiducient advisors	183.31K	7.73%	$59.17M
Altrinsic global advisors	660.72K	7.64%	$213.27M
Gfi investment counsel	157.44K	6.95%	$50.82M
Cryder capital partners llp	321.69K	6.78%	$103.83M

Top Buyers

Holder	Shares	% Assets	Change
Norges bank	3.28M	0.12%	3.28M
Jpmorgan chase	5.64M	0.12%	2.45M
Vanguard fiduciary trust	1.23M	0.10%	1.23M
Morgan stanley	6.37M	0.12%	804.44K
Blackrock	15.27M	0.10%	781.42K

Top Sellers

Holder	Shares	% Assets	Change
Berkshire hathaway	-	-	-3.60M
Eagle capital management	463.35K	0.50%	-1.81M
Fmr	523.18K	0.01%	-817.98K
Capital world investors	11.48M	0.51%	-775.12K
Two sigma advisers, lp	-	-	-724.40K

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	3.28M	0.12%	3.28M	$1.16B
Vanguard fiduciary trust	1.23M	0.10%	1.23M	$395.59M
Baupost group llc/ma	769.00K	4.85%	769.00K	$248.22M
Meritage group lp	680.17K	8.28%	680.17K	$219.54M
Vanguard global advisers	469.13K	0.08%	469.13K	$151.43M

Sold Out

Holder	Change
Quest 10 wealth builders	-1.00
Luken investment analytics	-1.00
Breakwater investment management	-1.00
Cape investment advisory	-2.00
Sugar maple asset management	-2.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2026	1,247	-3.86%	184,086,215	-2.45%	85	1.11%	614	6.23%	401	-15.58%
Dec 31, 2025	589	-53.59%	41,655,262	-77.55%	19	0.26%	257	-56.95%	203	-49.75%
Sep 30, 2025	709	-43.42%	60,661,564	-68.68%	28	0.35%	328	-38.23%	216	-54.43%
Jun 30, 2025	1,235	-4.78%	193,497,392	1.13%	89	1.15%	525	-16.67%	471	18.94%
Mar 31, 2025	15	-98.77%	9,379,098	-95.10%	4	0.06%	7	-98.72%	2	-99.51%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard US Total Market Shares ETF	6.54M	3.03%	-4.77K
Vanguard Total Stock Mkt Idx Inv	6.47M	3.02%	8.43K
Vanguard Institutional 500 Index Trust	6.15M	2.85%	44.02K
Vanguard 500 Index Investor	5.46M	2.55%	-67.97K
Dodge & Cox Stock I	3.68M	1.72%	-
American Funds American Balanced A	3.22M	1.50%	108.00K
iShares Core S&P 500 ETF	2.77M	1.30%	8.13K
Fidelity 500 Index	2.74M	1.28%	4.01K
SPDR® S&P 500 ETF	2.69M	1.25%	-39.37K
SPDR® S&P 500® ETF Trust	2.62M	1.21%	-13.72K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Feb 26, 2026	Zeidel Darren	General Counsel	Sell	$1.42M
Feb 17, 2026	Zeidel Darren	General Counsel	Sell	$1.64M
Feb 10, 2026	KNIGHT LESTER B	-	Buy	$1.28M
Nov 05, 2025	Zeidel Darren	General Counsel	Sell	$2.61M
Nov 05, 2025	Zeidel Darren	General Counsel	Sell	$424.56K

Insider Transactions Trends

Date	Buy	Sell
2026 Q2	-	-
2026 Q1	1	2
2025 Q1	-	-
2024 Q4	-	2
2024 Q3	1	3

AON Ownership FAQ

Who Owns Aon?

Aon shareholders are primarily institutional investors at 85.58%, followed by 1.17% insiders and 13.25% retail investors. The average institutional ownership in Aon's industry, Insurance Brokers Stocks, is 28.60%, which Aon exceeds.

Who owns the most shares of Aon?

Aon’s largest shareholders are Vanguard group (20.17M shares, 9.38%), Blackrock (15.27M shares, 7.67%), and Blackrock funding, inc. /de (16.15M shares, 7.51%). Together, they hold 24.55% of Aon’s total shares outstanding.

Does Blackrock own Aon?

Yes, BlackRock owns 7.67% of Aon, totaling 15.27M shares as of Jun 2024. This represents 0.10% of BlackRock's total assets, with a market value of 4.48B$. In the last quarter, BlackRock increased its holdings by 781.42K shares, a 5.39% change.

Who is Aon’s biggest shareholder by percentage of total assets invested?

Hps investment partners is Aon’s biggest shareholder by percentage of total assets invested, with 99.01% of its assets in 4.34M Aon shares, valued at 1.73B$.

Who is the top mutual fund holder of Aon shares?

Vanguard US Total Market Shares ETF is the top mutual fund holder of Aon shares, with 3.03% of its total shares outstanding invested in 6.54M Aon shares.

Try Tickergate Pro Free

Customize Everything. 100% Flexibility. Fast and Easy to Use (No code or Excel Needed)

Customize your own personal stocks lists, views and charts
Choose from hundreds of fields, up to 15 years of history
Conduct deep comparison analysis

Discover trending investment themes
Find your next best investment
Research stocks using tools