Aon plc
DE ˙ DB ˙ IE00BLP1HW54
276,10 € ↑5,50 (2,03%)
2026-06-05
DEL PRIS
SecurityDE:4VK / Aon plc
InstitutionJpmorgan Chase & Co
Latest Disclosed Ownership5,641,431 shares
Latest Disclosed Value $ 1,828,162,855
Jpmorgan Chase & Co ownership in 4VK / Aon plc

On May 13, 2026 - Jpmorgan Chase & Co filed a 13F-HR/A form disclosing ownership of 5,641,431 shares of Aon plc (DE:4VK) valued at $1,580,164,823 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 3,192,216 shares of Aon plc. This represents a change in shares of 76.72% during the quarter. The current value of the position is $1,557,599,099 USD.

Jpmorgan Chase & Co has a history of taking positions in derivatives of the underlying security (4VK) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

DE:4VK / Aon plc Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F/A-1 AON COMMON G0403H108 5,641,431 2,449,215 76.72 1,828,163 62.29 0.0127
2026-05-13 2026-03-31 13F AON COMMON G0403H108 0 -100.00 0
2026-02-11 2025-12-31 13F AON COMMON G0403H108 3,192,216 -154,981 -4.63 1,126,470 -5.62 0.0707
2025-11-26 2025-09-30 13F/A-1 AON COMMON G0403H108 3,347,197 -1,352,405 -28.78 1,193,560 -28.81 0.0715
2025-11-07 2025-09-30 13F AON COMMON G0403H108 3,347,197 -1,352,405 1,193,560 0.0076
2025-08-12 2025-06-30 13F AON COMMON G0403H108 4,699,602 -956,721 -16.91 1,676,646 -25.73 0.1096
2025-05-12 2025-03-31 13F AON COMMON G0403H108 5,656,323 300,941 5.62 2,257,382 17.36 0.1648
2025-02-12 2024-12-31 13F AON COMMON G0403H108 5,355,382 394,679 7.96 1,923,439 12.07 0.1432
2024-12-26 2024-09-30 13F/A-1 AON COMMON G0403H108 4,960,703 2,364,966 91.11 1,716,354 125.23 0.1304
2024-11-08 2024-09-30 13F AON COMMON G0403H108 4,960,703 2,364,966 1,716,354 0.1308
2024-12-26 2024-06-30 13F/A-1 AON COMMON G0403H108 2,595,737 1,532,016 144.02 762,057 114.67 0.0625
2024-08-12 2024-06-30 13F AON COMMON G0403H108 2,595,737 1,532,016 762,057 0.0626
2024-12-26 2024-03-31 13F/A-1 AON COMMON G0403H108 1,063,721 100,703 10.46 354,985 26.66 0.0300
2024-05-10 2024-03-31 13F AON COMMON G0403H108 1,063,721 100,703 354,985 0.0300
2024-12-26 2023-12-31 13F/A-1 AON COMMON G0403H108 963,018 412,481 74.92 280,258 57.01 0.0269
2024-02-12 2023-12-31 13F AON COMMON G0403H108 963,018 412,481 280,258 0.0269
2023-11-14 2023-09-30 13F AON COMMON G0403H108 550,537 -47,811 -7.99 178,495 -13.58 0.0197
2023-08-11 2023-06-30 13F AON COMMON G0403H108 598,348 -171,807 -22.31 206,550 -14.94 0.0224
2023-05-18 2023-03-31 13F/A-1 AON COMMON G0403H108 770,155 -811,380 -51.30 242,822 51,128.06 0.0296
2023-05-11 2023-03-31 13F AON COMMON G0403H108 673,482 -908,053 242,822 0.0036
2023-02-13 2022-12-31 13F AON COMMON G0403H108 1,581,535 -56,719 -3.46 475 -99.89 0.0626
2022-11-14 2022-09-30 13F AON COMMON G0403H108 1,638,254 85,980 5.54 438,841 4.83 0.0630
2022-08-11 2022-06-30 13F AON COMMON G0403H108 1,552,274 1,031,017 197.79 418,617 146.63 0.0583
2022-05-11 2022-03-31 13F AON COMMON G0403H108 521,257 221,039 73.63 169,737 88.11 0.0204
2022-02-11 2021-12-31 13F/A-1 AON COMMON G0403H108 300,218 -279,339 -48.20 90,233 -45.52 0.0104
2022-02-10 2021-12-31 13F AON COMMON G0403H108 300,218 -279,339 90,233 0.0103
2021-11-12 2021-09-30 13F AON COMMON G0403H108 579,557 -84,549 -12.73 165,621 4.45 0.0205
2021-08-12 2021-06-30 13F AON COMMON G0403H108 664,106 -53,153 -7.41 158,562 -3.93 0.0189
2021-05-12 2021-03-31 13F AON COMMON G0403H108 717,259 -78,326 -9.85 165,049 -1.81 0.0220
2021-02-19 2020-12-31 13F/A-1 AON COMMON G0403H108 795,585 76,845 10.69 168,083 14.03 0.0247
2021-02-11 2020-12-31 13F AON COMMON G0403H108 795,585 76,845 168,083 4,156.8124
2020-11-12 2020-09-30 13F/A-1 AON COMMON G0403H108 718,740 86,039 13.60 147,406 20.97 0.0248
2020-11-12 2020-09-30 13F AON COMMON G0403H108 718,740 147,406
2020-08-11 2020-06-30 13F AON COMMON G0403H108 632,701 395,895 167.18 121,857 211.81 0.0235
2020-05-12 2020-03-31 13F AON COMMON G0408V102 236,806 -77,395 -24.63 39,080 -40.29 0.0092
2020-02-11 2019-12-31 13F AON COMMON G0408V102 314,201 83,121 35.97 65,445 46.31 0.0122
2019-11-12 2019-09-30 13F AON COMMON G0408V102 231,080 -42,218 -15.45 44,730 -15.01 0.0089
2019-08-07 2019-06-30 13F AON COMMON G0408V102 273,298 -28,724 -9.51 52,629 2.08 0.0103
2019-05-07 2019-03-31 13F AON COMMON G0408V102 302,022 -176,070 -36.83 51,556 -25.82 0.0105
2019-02-11 2018-12-31 13F AON COMMON G0408V102 478,092 15,376 3.32 69,497 -2.33 0.0161
2018-11-13 2018-09-30 13F/A-1 AON COMMON G0408V102 462,716 144,845 45.57 71,156 63.19 0.0136
2018-11-07 2018-09-30 13F AON COMMON G0408V102 462,716 144,845 71,156
2018-08-14 2018-06-30 13F AON COMMON G0408V102 317,871 -133,970 -29.65 43,603 -31.23 0.0090
2018-05-10 2018-03-31 13F AON COMMON G0408V102 451,841 109,048 31.81 63,407 38.04 0.0136
2018-02-13 2017-12-31 13F AON COMMON G0408V102 342,793 47,866 16.23 45,935 5.99 0.0097
2017-11-09 2017-09-30 13F AON COMMON G0408V102 294,927 29,118 10.95 43,339 22.64 0.0096
2017-08-09 2017-06-30 13F AON COMMON G0408V102 265,809 -173,648 -39.51 35,338 -32.25 0.0081
2017-05-10 2017-03-31 13F AON COMMON G0408V102 439,457 -37,454 -7.85 52,159 -1.94 0.0119
2017-02-06 2016-12-31 13F AON COMMON G0408V102 476,911 13,301 2.87 53,189 1.99 0.0128
2016-11-04 2016-09-30 13F AON COMMON G0408V102 463,610 -139,454 -23.12 52,152 -20.83 0.0128
2016-08-08 2016-06-30 13F AON COMMON G0408V102 603,064 104,221 20.89 65,874 26.43 0.0164
2016-05-10 2016-03-31 13F AON COMMON G0408V102 498,843 -101,547 -16.91 52,104 -5.88 0.0133
2016-02-12 2015-12-31 13F AON COMMON G0408V102 600,390 57,757 10.64 55,362 15.14 0.0139
2015-11-13 2015-09-30 13F AON COMMON G0408V102 542,633 50,998 10.37 48,082 -1.88 0.0129
2015-08-14 2015-06-30 13F AON COMMON G0408V102 491,635 -4,730,635 -90.59 49,004 -90.24 0.0116
2015-05-15 2015-03-31 13F AON COMMON G0408V102 5,222,270 628,446 13.68 501,965 15.23 0.1143
2015-02-13 2014-12-31 13F AON COMMON G0408V102 4,593,824 -99,512 -2.12 435,633 5.87 0.0996
2014-12-08 2014-09-30 13F/A-1 AON COMMON G0408V102 4,693,336 -895,659 -16.03 411,465 -18.28 0.0975
2014-11-14 2014-09-30 13F AON COMMON G0408V102 4,693,336 411,465
2014-09-03 2014-06-30 13F/A-1 AON COMMON G0408V102 5,588,995 -215,536 -3.71 503,511 2.92 0.1279
2014-08-14 2014-06-30 13F AON COMMON G0408V102 5,588,995 503,511
2014-05-15 2014-03-31 13F AON COMMON G0408V102 5,804,531 46,342 0.80 489,205 1.27 0.1350
2014-02-26 2013-12-31 13F/A-1 AON COMMON G0408V102 5,758,189 2,757,032 91.87 483,055 116.22 0.1371
2014-02-13 2013-12-31 13F AON COMMON G0408V102 5,758,189 483,055
2013-10-31 2013-09-30 13F AON COMMON G0408V102 3,001,157 -1,753,868 -36.88 223,407 -26.99 0.0662
2013-08-13 2013-06-30 13F AON COMMON G0408V102 4,755,025 4,755,025 305,987 0.0975
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2020-05-12 2020-03-31 13F AON OPTION Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-11 2019-12-31 13F AON OPTION Call 32,000 0.00 6,665 7.60 n/a n/a n/a
2019-11-12 2019-09-30 13F AON OPTION Call 32,000 -46.22 6,194 -45.94 n/a n/a n/a
2019-08-07 2019-06-30 13F AON OPTION Call 59,500 116.36 11,458 144.10 n/a n/a n/a
2019-05-07 2019-03-31 13F AON OPTION Call 27,500 -21.43 4,694 -7.74 n/a n/a n/a
2019-02-11 2018-12-31 13F AON OPTION Call 35,000 75.00 5,088 65.41 n/a n/a n/a
2018-11-13 2018-09-30 13F/A AON OPTION Call 20,000 0.00 3,076 12.14 n/a n/a n/a
2018-11-07 2018-09-30 13F AON OPTION Call 20,000 3,076 n/a n/a n/a
2018-08-14 2018-06-30 13F AON OPTION Call 20,000 0.00 2,743 -10.83 n/a n/a n/a
2015-11-13 2015-09-30 13F AON OPTION Call 0 -100.00 0 -100.00 n/a n/a n/a
2015-08-14 2015-06-30 13F AON OPTION Call 100,000 1,983.33 9,968 2,062.26 n/a n/a n/a
2015-05-15 2015-03-31 13F AON OPTION Call 4,800 -98.81 461 -98.79 n/a n/a n/a
2015-02-13 2014-12-31 13F AON OPTION Call 403,400 23.67 38,254 33.76 n/a n/a n/a
2014-12-08 2014-09-30 13F/A AON OPTION Call 326,200 28,598 n/a n/a n/a
2014-11-14 2014-09-30 13F AON OPTION Call 326,200 28,598 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2020-05-12 2020-03-31 13F AON OPTION Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-11 2019-12-31 13F AON OPTION Put 32,000 0.00 6,665 7.60 n/a n/a n/a
2019-11-12 2019-09-30 13F AON OPTION Put 32,000 -46.22 6,194 -45.94 n/a n/a n/a
2019-08-07 2019-06-30 13F AON OPTION Put 59,500 116.36 11,458 144.10 n/a n/a n/a
2019-05-07 2019-03-31 13F AON OPTION Put 27,500 -21.43 4,694 -7.74 n/a n/a n/a
2019-02-11 2018-12-31 13F AON OPTION Put 35,000 75.00 5,088 65.41 n/a n/a n/a
2018-11-13 2018-09-30 13F/A AON OPTION Put 20,000 0.00 3,076 12.14 n/a n/a n/a
2018-11-07 2018-09-30 13F AON OPTION Put 20,000 3,076 n/a n/a n/a
2018-08-14 2018-06-30 13F AON OPTION Put 20,000 0.00 2,743 -10.83 n/a n/a n/a
2015-11-13 2015-09-30 13F AON OPTION Put 0 -100.00 0 -100.00 n/a n/a n/a
2015-08-14 2015-06-30 13F AON OPTION Put 342,900 -33.00 34,180 -30.52 n/a n/a n/a
2015-05-15 2015-03-31 13F AON OPTION Put 511,800 14.32 49,194 15.87 n/a n/a n/a
2015-02-13 2014-12-31 13F AON OPTION Put 447,700 -37.63 42,455 -32.54 n/a n/a n/a
2014-12-08 2014-09-30 13F/A AON OPTION Put 717,800 62,930 n/a n/a n/a
2014-11-14 2014-09-30 13F AON OPTION Put 717,800 62,930 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.