Aon plc (AON) — Institutional Holders, Q2 2026

1,272 institutional investment managers reported a AON position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $63.7B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

← AON stock profile

AON in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

127

Added to

469

Trimmed

455

Sold out

116

Biggest buyers

JPMORGAN CHASEAdded · +6,534,543 sh+$2.2B
VANGUARD PORTFOLIO MANAGEMENTAdded · +2,643,956 sh+$877.0M
PRICE T ROWE ASSOCIATESAdded · +1,855,714 sh+$615.5M
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPAdded · +1,817,336 sh+$602.8M
AQR CAPITAL MANAGEMENTAdded · +926,045 sh+$307.2M

Biggest sellers

UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMETrimmed · -1,236,383 sh-$410.1M
POLEN CAPITAL MANAGEMENTTrimmed · -1,190,018 sh-$394.7M
FARALLON CAPITAL MANAGEMENTTrimmed · -1,130,076 sh-$374.8M
CANTILLON CAPITAL MANAGEMENTSold out · -1,095,574 sh-$363.4M
Sustainable Growth AdvisersTrimmed · -809,521 sh-$268.5M

AON 13F holders ranked 1–100 of 1,272

Institutional investors reporting a position in Aon plc on SEC Form 13F-HR for Q2 2026, ranked by reported value.
#	Institution	Shares	Value	% of portfolio	QoQShares vs Q1 2026
1	BlackRock#1 · 15,716,429 sh	15,716,429	$5.2B	0.08%	-2.7%
2	VANGUARD CAPITAL MANAGEMENT#2 · 13,603,465 sh	13,603,465	$4.5B	0.10%	+0.2%
3	JPMORGAN CHASE#3 · 12,175,974 sh	12,175,974	$4.0B	0.22%	+115.8%
4	Capital World Investors#4 · 11,711,650 sh	11,711,650	$3.9B	0.46%	+2.0%
5	STATE STREET#5 · 9,416,039 sh	9,416,039	$3.1B	0.09%	+2.1%
6	DODGE & COX#6 · 8,593,144 sh	8,593,144	$2.9B	1.49%	+5.9%
7	MASSACHUSETTS FINANCIAL SERVICES#7 · 7,615,397 sh	7,615,397	$2.6B	0.82%	-8.9%
8	VANGUARD PORTFOLIO MANAGEMENT#8 · 7,202,991 sh	7,202,991	$2.4B	0.11%	+58.0%
9	MORGAN STANLEY#9 · 6,214,787 sh	6,214,787	$2.1B	0.11%	-2.5%
10	GEODE CAPITAL MANAGEMENT#10 · 5,180,553 sh	5,180,553	$1.7B	0.09%	-1.2%
11	Bank of New York Mellon#11 · 3,191,212 sh	3,191,212	$1.1B	0.17%	-3.9%
12	PRICE T ROWE ASSOCIATES#12 · 3,136,640 sh	3,136,640	$1.0B	0.10%	+144.9%
13	NORGES BANK#13 · 2,796,760 sh	2,796,760	$927.7M	0.09%	—
14	Mitsubishi UFJ Asset Management , Ltd.#14 · 2,753,913 sh	2,753,913	$913.4M	0.51%	+9.4%
15	Independent Franchise Partners LLP#15 · 2,646,943 sh	2,646,943	$878.0M	5.76%	+2.3%
16	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP#16 · 2,614,754 sh	2,614,754	$867.3M	0.38%	+227.9%
17	DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt#17 · 2,255,768 sh	2,255,768	$748.2M	0.57%	-23.5%
18	Boston Partners#18 · 2,089,773 sh	2,089,773	$695.8M	0.62%	+6.9%
19	NORTHERN#19 · 2,040,534 sh	2,040,534	$676.8M	0.08%	-2.0%
20	AQR CAPITAL MANAGEMENT#20 · 1,905,800 sh	1,905,800	$623.0M	0.22%	+94.5%
21	WCM INVESTMENT MANAGEMENT#21 · 1,875,859 sh	1,875,859	$614.5M	1.11%	-3.9%
22	Artisan Partners Limited Partnership#22 · 1,850,623 sh	1,850,623	$613.8M	0.97%	+12.6%
23	GOLDMAN SACHS GROUP#23 · 1,748,801 sh	1,748,801	$580.1M	0.05%	+10.4%
24	Neuberger Berman Group#24 · 1,691,729 sh	1,691,729	$561.1M	0.37%	-8.9%
25	BANK OF AMERICA#25 · 1,624,970 sh	1,624,970	$539.0M	0.03%	+2.7%
26	Veritas Asset Management LLP#26 · 1,408,111 sh	1,408,111	$467.1M	8.40%	-7.4%
27	FARALLON CAPITAL MANAGEMENT#27 · 1,382,562 sh	1,382,562	$458.6M	2.12%	-45.0%
28	CHARLES SCHWAB INVESTMENT MANAGEMENT#28 · 1,345,367 sh	1,345,367	$446.2M	0.06%	-0.7%
29	Legal & General Group Plc#29 · 1,288,852 sh	1,288,852	$427.5M	0.09%	-3.9%
30	DIMENSIONAL FUND ADVISORS#30 · 1,240,634 sh	1,240,634	$411.5M	0.07%	-1.0%
31	VANGUARD FIDUCIARY#31 · 1,190,449 sh	1,190,449	$394.9M	0.09%	-2.9%
32	Mawer Investment Management Ltd.#32 · 1,171,624 sh	1,171,624	$388.6M	2.64%	-8.3%
33	VIKING GLOBAL INVESTORS#33 · 1,151,269 sh	1,151,269	$381.9M	1.09%	+5.9%
34	LAZARD ASSET MANAGEMENT#34 · 1,122,874 sh	1,122,874	$372.4M	0.56%	-7.8%
35	DIAMOND HILL CAPITAL MANAGEMENT#35 · 1,114,156 sh	1,114,156	$369.6M	2.96%	-25.1%
36	Invesco Ltd.#36 · 1,069,331 sh	1,069,331	$354.7M	0.03%	-28.1%
37	Amundi#37 · 993,712 sh	993,712	$329.6M	0.08%	-33.9%
38	Nuveen#38 · 878,682 sh	878,682	$291.4M	0.07%	+3.2%
39	UBS Group AG#39 · 822,267 sh	822,267	$272.7M	0.03%	-9.0%
40	COMGEST GLOBAL INVESTORS S.A.S.#40 · 820,270 sh	820,270	$272.1M	5.99%	+30.5%
41	PineStone Asset Management#41 · 799,293 sh	799,293	$265.1M	—	New
42	Capital International Investors#42 · 793,989 sh	793,989	$263.1M	0.05%	-1.6%
43	Longview Partners (Guernsey) LTD#43 · 768,975 sh	768,975	$255.1M	4.14%	-21.2%
44	FIL Ltd#44 · 753,981 sh	753,981	$250.1M	0.18%	+1.1%
45	Wealthspire Advisors#45 · 726,424 sh	726,424	$240.9M	1.33%	-26.2%
46	Focus Partners Wealth#46 · 706,903 sh	706,903	$234.5M	0.24%	+12.1%
47	AMERIPRISE FINANCIAL#47 · 692,802 sh	692,802	$229.8M	0.05%	-35.9%
48	BAUPOST GROUP#48 · 687,000 sh	687,000	$227.9M	4.21%	-10.7%
49	Meritage Group#49 · 684,518 sh	684,518	$227.0M	8.75%	+0.6%
50	First Pacific Advisors#50 · 681,367 sh	681,367	$226.0M	2.79%	-3.1%
51	ALTRINSIC GLOBAL ADVISORS#51 · 646,424 sh	646,424	$214.4M	7.87%	-2.2%
52	DEUTSCHE BANK AG\#52 · 585,041 sh	585,041	$194.1M	0.06%	-9.3%
53	Swiss National Bank#53 · 574,100 sh	574,100	$190.4M	0.10%	-4.2%
54	ROYAL BANK OF CANADA#54 · 554,705 sh	554,705	$184.0M	0.03%	-19.4%
55	FMR#55 · 551,367 sh	551,367	$182.9M	<0.01%	+5.4%
56	Vontobel Holding Ltd.#56 · 540,802 sh	540,802	$179.4M	—	-45.9%
57	USS Investment Management Ltd#57 · 520,768 sh	520,768	$172.7M	0.62%	+3.6%
58	National Pension Service#58 · 484,892 sh	484,892	$160.8M	0.10%	+2.0%
59	Vanguard Global Advisers#59 · 460,517 sh	460,517	$152.7M	0.07%	-1.8%
60	Sumitomo Mitsui#60 · 453,213 sh	453,213	$150.3M	0.09%	+1.3%
61	NATIXIS ADVISORS#61 · 448,019 sh	448,019	$148.6M	0.17%	+31.0%
62	BNP PARIBAS FINANCIAL MARKETS#62 · 446,333 sh	446,333	$148.0M	0.05%	+21.2%
63	Fiera Capital#63 · 419,313 sh	419,313	$139.1M	0.50%	-23.8%
64	VANGUARD ASSET MANAGEMENT, Ltd#64 · 408,838 sh	408,838	$135.6M	0.09%	+13.0%
65	Douglass Winthrop Advisors#65 · 400,635 sh	400,635	$132.9M	2.29%	+1.5%
66	BARCLAYS PLC#66 · 394,135 sh	394,135	$130.7M	0.03%	-34.4%
67	FRANKLIN RESOURCES#67 · 389,485 sh	389,485	$129.2M	0.03%	+7.8%
68	Russell Investments Group, Ltd.#68 · 388,097 sh	388,097	$128.6M	0.11%	+47.6%
69	SEI INVESTMENTS#69 · 385,948 sh	385,948	$128.0M	0.11%	-14.6%
70	Verition Fund Management#70 · 385,028 sh	385,028	$127.7M	0.18%	+68.7%
71	ADAGE CAPITAL PARTNERS GP, L.L.C.#71 · 380,369 sh	380,369	$126.2M	0.18%	+71.2%
72	JONES FINANCIAL COMPANIES LLLP#72 · 375,514 sh	375,514	$123.4M	0.05%	+45.0%
73	CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM#73 · 370,835 sh	370,835	$123.0M	0.07%	-22.1%
74	BLAIR WILLIAM#74 · 360,607 sh	360,607	$119.6M	0.31%	-14.5%
75	RHUMBLINE ADVISERS#75 · 360,106 sh	360,106	$119.4M	0.09%	-5.4%
76	Cryder Capital Partners LLP#76 · 352,191 sh	352,191	$116.8M	7.36%	+9.5%
77	HSBC PLC#77 · 351,616 sh	351,616	$116.6M	0.05%	-0.7%
78	ENVESTNET ASSET MANAGEMENT#78 · 337,900 sh	337,900	$112.1M	0.03%	-20.2%
79	WELLS FARGO & COMPANY#79 · 336,918 sh	336,918	$111.8M	0.02%	-7.9%
80	DAVENPORT#80 · 336,307 sh	336,307	$111.2M	—	-0.2%
81	C WorldWide Group Holding A/S#81 · 320,935 sh	320,935	$106.5M	2.57%	-19.6%
82	CapitalatWork S.A.#82 · 316,541 sh	316,541	$105.0M	2.63%	+16.4%
83	MILLENNIUM MANAGEMENT#83 · 312,198 sh	312,198	$103.6M	0.04%	+1462.9%
84	Haverford#84 · 296,930 sh	296,930	$98.5M	0.85%	-14.2%
85	LORD, ABBETT#85 · 292,301 sh	292,301	$97.0M	0.28%	-2.1%
86	BANK OF MONTREAL#86 · 283,011 sh	283,011	$93.9M	0.03%	-1.8%
87	BRISTOL JOHN W#87 · 279,586 sh	279,586	$92.7M	1.37%	-1.2%
88	AVIVA PLC#88 · 267,360 sh	267,360	$88.7M	0.13%	-13.8%
89	DekaBank Deutsche Girozentrale#89 · 275,444 sh	275,444	$88.6M	0.15%	0.0%
90	PRINCIPAL FINANCIAL GROUP#90 · 260,063 sh	260,063	$86.3M	0.04%	+3.6%
91	Bowie Capital Management#91 · 250,021 sh	250,021	$82.9M	3.53%	-22.4%
92	BloombergSen#92 · 245,318 sh	245,318	$81.4M	6.07%	-3.4%
93	Sustainable Growth Advisers#93 · 242,284 sh	242,284	$80.4M	—	-77.0%
94	CITIGROUP#94 · 233,032 sh	233,032	$77.3M	0.03%	-7.0%
95	NEW YORK STATE COMMON RETIREMENT FUND#95 · 229,832 sh	229,832	$76.2M	0.10%	-5.9%
96	SCHARF INVESTMENTS#96 · 226,626 sh	226,626	$75.2M	2.48%	-11.1%
97	Quantinno Capital Management#97 · 225,133 sh	225,133	$74.7M	0.09%	-0.3%
98	Gillson Capital#98 · 221,600 sh	221,600	$73.5M	4.33%	+115.7%
99	WEITZ INVESTMENT MANAGEMENT#99 · 213,860 sh	213,860	$70.9M	4.91%	0.0%
100	Ensign Peak Advisors#100 · 206,469 sh	206,469	$68.5M	0.11%	-7.5%

Funds that sold out of AON in Q2 2026 (116)

Held AON at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held AON in Q1 2026 and reported no position in Q2 2026.
Institution	Shares sold	Value in Q1 2026
CANTILLON CAPITAL MANAGEMENT1,095,574 sh	1,095,574	$353.6M
Southpoint Capital Advisors500,000 sh	500,000	$161.4M
Prana Capital Management323,458 sh	323,458	$104.4M
Zurich Insurance Group Ltd148,305 sh	148,305	$47.9M
M.D. Sass142,362 sh	142,362	$46.0M
CENTRAL SECURITIES80,000 sh	80,000	$25.8M
SUSQUEHANNA FUNDAMENTAL INVESTMENTS71,538 sh	71,538	$23.1M
PBU - The Pension Fund of Early Childhood & Youth Educators105,322 sh	105,322	$19.6M
Point72 Asset Management, L.P.33,297 sh	33,297	$10.7M
Sone Capital Management31,483 sh	31,483	$10.2M
Premier Fund Managers Ltd30,668 sh	30,668	$9.9M
Philadelphia Financial Management of San Francisco28,000 sh	28,000	$9.0M
SEGALL BRYANT & HAMILL26,272 sh	26,272	$8.3M
Qube Research & Technologies Ltd24,328 sh	24,328	$7.9M
Blue Sparrow18,000 sh	18,000	$5.8M
Graham Capital Management, L.P.16,254 sh	16,254	$5.2M
WEDGE CAPITAL MANAGEMENT L L P16,077 sh	16,077	$5.2M
Motley Fool Wealth Management14,022 sh	14,022	$4.5M
Entropy Technologies13,833 sh	13,833	$4.5M
RENAISSANCE TECHNOLOGIES11,601 sh	11,601	$3.7M
AGF MANAGEMENT LTD11,388 sh	11,388	$3.7M
GSA CAPITAL PARTNERS LLP11,353 sh	11,353	$3.7M
Voleon Capital Management10,159 sh	10,159	$3.3M
DRW Securities7,433 sh	7,433	$2.4M
ExodusPoint Capital Management6,843 sh	6,843	$2.2M
ASHTON THOMAS SECURITIES6,030 sh	6,030	$1.9M
GAMCO INVESTORS, ET AL5,939 sh	5,939	$1.9M
OCCUDO QUANTITATIVE STRATEGIES5,883 sh	5,883	$1.8M
NOMURA ASSET MANAGEMENT INTERNATIONAL4,348 sh	4,348	$1.4M
NORDEN GROUP4,227 sh	4,227	$1.4M
Portside Wealth Group4,092 sh	4,092	$1.3M
Hillsdale Investment Management3,700 sh	3,700	$1.2M
Gibbs Wealth Management3,291 sh	3,291	$1.1M
GFS Advisors12,630 sh	12,630	$876.1K
LBP AM SA2,655 sh	2,655	$857.0K
Koa Wealth Management2,636 sh	2,636	$850.8K
Parallax Volatility Advisers, L.P.2,532 sh	2,532	$849.0K
a16z Perennial Management, L.P.2,310 sh	2,310	$745.6K
DARK FOREST CAPITAL MANAGEMENT2,299 sh	2,299	$742.1K
Future Fund2,257 sh	2,257	$728.5K
Three Seasons Wealth2,252 sh	2,252	$726.9K
MOKAN Wealth Management2,202 sh	2,202	$711.3K
OVERSEA-CHINESE BANKING Ltd2,105 sh	2,105	$679.5K
GTS SECURITIES2,086 sh	2,086	$673.3K
EVOKE WEALTH1,835 sh	1,835	$592.6K
iSAM Funds (UK) Ltd1,822 sh	1,822	$588.1K
AIGEN INVESTMENT MANAGEMENT1,772 sh	1,772	$572.0K
SkyView Investment Advisors1,665 sh	1,665	$537.0K
FOX RUN MANAGEMENT, L.L.C.1,608 sh	1,608	$521.1K
Sageworth1,561 sh	1,561	$503.9K
AVITY INVESTMENT MANAGEMENT1,382 sh	1,382	$491.4K
Game Creek Capital1,500 sh	1,500	$484.2K
GAM Holding AG1,472 sh	1,472	$475.1K
Polymer Capital Management (US)1,368 sh	1,368	$441.6K
WoodTrust Financial1,350 sh	1,350	$436.0K
Alliance Wealth Advisors1,215 sh	1,215	$392.2K
Dakota Wealth Management1,019 sh	1,019	$329.0K
BW Gestao de Investimentos Ltda.954 sh	954	$307.9K
Tranquility Partners946 sh	946	$305.4K
Ducere Wealth Management922 sh	922	$297.4K
POTOMAC FUND MANAGEMENT916 sh	916	$295.8K
Icon Wealth Advisors905 sh	905	$292.0K
EARNED WEALTH ADVISORS811 sh	811	$261.8K
WEALTH ALLIANCE770 sh	770	$248.5K
Flaharty Asset Management768 sh	768	$247.9K
BlueSky Wealth Advisors765 sh	765	$246.9K
VisionPoint Advisory Group765 sh	765	$246.9K
Castleview Partners751 sh	751	$242.4K
Integrated Advisors Network747 sh	747	$241.0K
LAUREL OAK WEALTH MANAGEMENT737 sh	737	$237.9K
PATTON FUND MANAGEMENT719 sh	719	$232.1K
Sendero Wealth Management716 sh	716	$231.1K
Adelphi684 sh	684	$220.8K
SIMPLEX TRADING684 sh	684	$220.8K
J. Goldman675 sh	675	$217.9K
ARS Investment Partners645 sh	645	$208.2K
JM2 Capital626 sh	626	$202.1K
Addison Advisors500 sh	500	$161.4K
Goodman Advisory Group496 sh	496	$160.1K
Financial Freedom492 sh	492	$158.7K
Bayforest Capital Ltd423 sh	423	$136.5K
Opal Wealth Advisors384 sh	384	$123.9K
Capula Management Ltd273 sh	273	$88.1K
Caitong International Asset Management , Ltd272 sh	272	$87.8K
RESOURCES MANAGEMENT /CT190 sh	190	$61.0K
Orion Capital Management176 sh	176	$56.8K
Wall Street Financial Group153 sh	153	$49.4K
DAGCO150 sh	150	$48.4K
Advisors Asset Management139 sh	139	$44.9K
PALLADIEM132 sh	132	$43.0K
TWIN PEAKS WEALTH ADVISORS106 sh	106	$34.1K
Wealth Preservation Advisors93 sh	93	$30.0K
Timothy G. Youngquist 2020 Irrevocable75 sh	75	$24.2K
Community Financial Services Group63 sh	63	$20.2K
Access Investment Management62 sh	62	$20.0K
Western Wealth Management54 sh	54	$17.5K
Lloyd Advisory Services53 sh	53	$17.1K
Destiny Wealth Partners50 sh	50	$16.1K
Golden State Equity Partners50 sh	50	$16.1K
Truvestments Capital41 sh	41	$13.2K

And 16 smaller positions.

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.