Aon plc
DE ˙ DB ˙ IE00BLP1HW54
276,10 € ↑5,50 (2,03%)
2026-06-05
DEL PRIS
SecurityDE:4VK / Aon plc
InstitutionGoldman Sachs Group Inc
Latest Disclosed Ownership1,583,991 shares
Latest Disclosed Value $ 511,280,502
Goldman Sachs Group Inc ownership in 4VK / Aon plc

On May 15, 2026 - Goldman Sachs Group Inc filed a 13F-HR form disclosing ownership of 1,583,991 shares of Aon plc (DE:4VK) valued at $443,675,879 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 1,409,274 shares of Aon plc. This represents a change in shares of 12.40% during the quarter. The current value of the position is $437,339,915 USD.

Goldman Sachs Group Inc 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)
2026-05-15 2026-03-31 13F AON CMN G0403H108 1,583,991 174,717 12.40 511,281 2.81 0.0137
2026-02-10 2025-12-31 13F AON CMN G0403H108 1,409,274 97,580 7.44 497,305 6.32 0.0613
2025-11-14 2025-09-30 13F AON CMN G0403H108 1,311,694 52,785 4.19 467,724 4.14 0.0572
2025-08-14 2025-06-30 13F AON CMN G0403H108 1,258,909 134,609 11.97 449,128 0.10 0.0610
2025-06-27 2025-03-31 13F/A-2 AON CMN G0403H108 1,124,300 3,901 0.35 448,697 11.50 0.0726
2025-05-16 2025-03-31 13F/A-1 AON CMN G0403H108 1,124,300 3,901 448,697 0.0726
2025-05-09 2025-03-31 13F AON CMN G0403H108 1,152,300 31,901 459,872 0.0139
2025-02-11 2024-12-31 13F AON CMN G0403H108 1,120,399 150,954 15.57 402,403 19.97 0.0634
2024-11-14 2024-09-30 13F AON CMN G0403H108 969,445 -129,601 -11.79 335,418 3.95 0.0540
2024-08-13 2024-06-30 13F AON CMN G0403H108 1,099,046 346,125 45.97 322,658 28.41 0.0546
2024-05-15 2024-03-31 13F AON CMN G0403H108 752,921 -231,979 -23.55 251,265 -12.34 0.0445
2024-05-14 2023-12-31 13F/A-2 AON CMN G0403H108 984,900 44,820 4.77 286,626 -5.96 0.0528
2024-03-01 2023-12-31 13F/A-1 AON CMN G0403H108 984,900 286,626
2024-02-13 2023-12-31 13F AON CMN G0403H108 984,900 44,820 286,626 0.0515
2024-05-15 2023-09-30 13F/A-1 AON CMN G0403H108 940,080 -288,216 -23.46 304,793 -28.12 0.0648
2023-11-14 2023-09-30 13F AON CMN G0403H108 940,080 -288,216 304,793 0.0612
2024-05-14 2023-06-30 13F/A-1 AON CMN G0403H108 1,228,296 256,672 26.42 424,008 38.41 0.0909
2023-08-15 2023-06-30 13F AON CMN G0403H108 1,228,296 256,672 424,008 0.0854
2024-05-14 2023-03-31 13F/A-1 AON CMN G0403H108 971,624 35,173 3.76 306,343 8.99 0.0704
2023-05-11 2023-03-31 13F AON CMN G0403H108 971,624 35,173 306,343 0.0654
2024-05-14 2022-12-31 13F/A-1 AON CMN G0403H108 936,451 78,872 9.20 281,067 122,636.24 0.0689
2023-02-13 2022-12-31 13F AON CMN G0403H108 936,451 78,872 281,067 0.0629
2024-05-14 2022-09-30 13F/A-1 AON CMN G0403H108 857,579 27,362 3.30 230 2.69 0.0580
2022-11-14 2022-09-30 13F AON CMN G0403H108 857,579 27,362 229,720 0.0531
2024-05-14 2022-06-30 13F/A-2 AON CMN G0403H108 830,217 26,071 3.24 224 -99.91 0.0559
2022-08-18 2022-06-30 13F/A-1 AON CMN G0403H108 830,217 26,071 223,892 0.0506
2022-08-15 2022-06-30 13F AON CMN G0403H108 830,217 26,071 223,892 0.0505
2022-05-16 2022-03-31 13F AON CMN G0403H108 804,146 -172,962 -17.70 261,854 -10.84 0.0550
2022-02-17 2021-12-31 13F/A-1 AON CMN G0403H108 977,108 -141,935 -12.68 293,679 -8.16 0.0583
2022-02-14 2021-12-31 13F AON CMN G0403H108 977,108 -141,935 293,679 0.0169
2022-01-20 2021-09-30 13F/A-1 AON CMN G0403H108 1,119,043 -583,689 -34.28 319,789 -21.34 0.0678
2021-11-10 2021-09-30 13F AON CMN G0403H108 1,119,043 -583,689 319,789 0.0676
2021-08-13 2021-06-30 13F AON CMN G0403H108 1,702,732 88,041 5.45 406,544 9.42 0.0911
2021-05-17 2021-03-31 13F AON CMN G0403H108 1,614,691 99,445 6.56 371,556 16.07 0.0937
2021-02-12 2020-12-31 13F AON CMN G0403H108 1,515,246 375,687 32.97 320,126 36.17 0.0824
2020-11-13 2020-09-30 13F AON CMN G0403H108 1,139,559 -1,561,335 -57.81 235,090 -54.81 0.0667
2020-08-12 2020-06-30 13F AON CMN G0403H108 2,700,894 938,833 53.28 520,192 78.88 0.1579
2020-05-15 2020-03-31 13F AON CMN G0408V102 1,762,061 75,229 4.46 290,810 -17.23 0.1025
2020-02-14 2019-12-31 13F AON CMN G0408V102 1,686,832 531,859 46.05 351,350 57.16 0.0895
2019-11-14 2019-09-30 13F AON CMN G0408V102 1,154,973 87,369 8.18 223,569 8.51 0.0646
2019-08-14 2019-06-30 13F AON CMN G0408V102 1,067,604 -472,084 -30.66 206,027 -21.61 0.0593
2019-05-15 2019-03-31 13F AON CMN G0408V102 1,539,688 628,480 68.97 262,824 98.43 0.0794
2019-02-14 2018-12-31 13F AON CMN G0408V102 911,208 37,251 4.26 132,454 -1.44 0.0422
2018-11-14 2018-09-30 13F AON CMN G0408V102 873,957 -36,948 -4.06 134,396 7.56 0.0347
2018-08-14 2018-06-30 13F AON CMN G0408V102 910,905 -260,581 -22.24 124,949 -23.99 0.0338
2018-05-15 2018-03-31 13F AON CMN G0408V102 1,171,486 -893,203 -43.26 164,394 -40.58 0.0421
2018-02-14 2017-12-31 13F AON CMN G0408V102 2,064,689 332,157 19.17 276,669 9.30 0.0662
2017-11-14 2017-09-30 13F AON CMN G0408V102 1,732,532 266,506 18.18 253,123 29.87 0.0620
2017-08-14 2017-06-30 13F AON CMN G0408V102 1,466,026 521,073 55.14 194,908 73.78 0.0504
2017-05-18 2017-03-31 13F/A-1 AON CMN G0408V102 944,953 146,806 18.39 112,155 25.99 0.0304
2017-05-15 2017-03-31 13F AON CMN G0408V102 944,953 112,155
2017-02-14 2016-12-31 13F AON CMN G0408V102 798,147 -80,452 -9.16 89,017 -9.93 0.0252
2016-11-14 2016-09-30 13F AON CMN G0408V102 878,599 74,738 9.30 98,835 12.56 0.0299
2016-08-15 2016-06-30 13F AON CMN G0408V102 803,861 -65,411 -7.52 87,807 -3.29 0.0287
2016-05-13 2016-03-31 13F AON CMN G0408V102 869,272 165,562 23.53 90,796 39.93 0.0299
2016-02-16 2015-12-31 13F AON CMN G0408V102 703,710 212,287 43.20 64,889 49.02 0.0204
2015-11-13 2015-09-30 13F AON CMN G0408V102 491,423 -242,212 -33.02 43,545 -40.45 0.0147
2015-08-14 2015-06-30 13F AON CMN G0408V102 733,635 82,710 12.71 73,129 16.88 0.0227
2015-05-15 2015-03-31 13F AON CMN G0408V102 650,925 -144,738 -18.19 62,567 -17.08 0.0201
2015-02-13 2014-12-31 13F AON CMN G0408V102 795,663 274,452 52.66 75,453 65.13 0.0239
2014-11-14 2014-09-30 13F AON CMN G0408V102 521,211 -334,904 -39.12 45,694 -40.76 0.0145
2014-08-14 2014-06-30 13F AON CMN G0408V102 856,115 -21,888 -2.49 77,128 4.23 0.0242
2014-05-15 2014-03-31 13F AON CMN G0408V102 878,003 -620,726 -41.42 73,998 -41.14 0.0242
2014-02-14 2013-12-31 13F AON CMN G0408V102 1,498,729 903,550 151.81 125,729 183.78 0.0413
2013-11-14 2013-09-30 13F AON CMN G0408V102 595,179 -56,978 -8.74 44,305 5.57 0.0164
2013-08-14 2013-06-30 13F AON CMN G0408V102 652,157 -33,748 -4.92 41,966 10.02 0.0162
2013-06-14 2012-12-31 13F/A-1 AON CMN G0408V102 685,905 168,770 32.64 38,143 41.06 0.0158
2013-06-14 2012-09-30 13F/A-2 AON CMN G0408V102 517,135 47,864 10.20 27,041 23.18 0.0108
2013-06-14 2012-06-30 13F/A-2 AON CMN G0408V102 469,271 -1,084,226 -69.79 21,953 -71.20 0.0098
2013-06-14 2012-03-31 13F/A-1 AON CMN 037389103 1,553,497 1,553,497 76,215 0.0356
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
(%)
2025-11-14 2025-09-30 13F AON CMN Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-14 2025-06-30 13F AON CMN Call 28,000 0.00 9,989 -10.60 n/a n/a n/a
2025-06-27 2025-03-31 13F/A AON CMN Call 28,000 11,175 n/a n/a n/a
2025-05-16 2025-03-31 13F/A AON CMN Call 28,000 11,175 n/a n/a n/a
2020-11-13 2020-09-30 13F AON CMN Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-08-12 2020-06-30 13F AON CMN Call 16,600 -56.77 3,197 -49.56 n/a n/a n/a
2020-05-15 2020-03-31 13F AON CMN Call 38,400 125.88 6,338 78.99 n/a n/a n/a
2020-02-14 2019-12-31 13F AON CMN Call 17,000 -55.73 3,541 -44.13 n/a n/a n/a
2018-08-14 2018-06-30 13F AON CMN Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-05-15 2018-03-31 13F AON CMN Call 1,400 -62.16 196 -60.48 n/a n/a n/a
2018-02-14 2017-12-31 13F AON CMN Call 3,700 12.12 496 2.90 n/a n/a n/a
2017-11-14 2017-09-30 13F AON CMN Call 3,300 -10.81 482 -2.03 n/a n/a n/a
2017-08-14 2017-06-30 13F AON CMN Call 3,700 -26.00 492 -17.03 n/a n/a n/a
2017-05-18 2017-03-31 13F/A AON CMN Call 5,000 85.19 593 97.01 n/a n/a n/a
2017-05-15 2017-03-31 13F AON CMN Call 5,000 593 n/a n/a n/a
2017-02-14 2016-12-31 13F AON CMN Call 2,700 107.69 301 106.16 n/a n/a n/a
2016-11-14 2016-09-30 13F AON CMN Call 1,300 -43.48 146 -41.83 n/a n/a n/a
2016-08-15 2016-06-30 13F AON CMN Call 2,300 76.92 251 84.56 n/a n/a n/a
2016-05-13 2016-03-31 13F AON CMN Call 1,300 -88.07 136 -86.47 n/a n/a n/a
2016-02-16 2015-12-31 13F AON CMN Call 10,900 -31.45 1,005 -28.67 n/a n/a n/a
2015-11-13 2015-09-30 13F AON CMN Call 15,900 -23.92 1,409 -32.36 n/a n/a n/a
2015-08-14 2015-06-30 13F AON CMN Call 20,900 36.60 2,083 41.60 n/a n/a n/a
2015-05-15 2015-03-31 13F AON CMN Call 15,300 -64.50 1,471 -64.01 n/a n/a n/a
2015-02-13 2014-12-31 13F AON CMN Call 43,100 101.40 4,087 117.86 n/a n/a n/a
2014-11-14 2014-09-30 13F AON CMN Call 21,400 -14.06 1,876 -16.36 n/a n/a n/a
2014-08-14 2014-06-30 13F AON CMN Call 24,900 54.66 2,243 65.29 n/a n/a n/a
2014-05-15 2014-03-31 13F AON CMN Call 16,100 -54.78 1,357 -54.55 n/a n/a n/a
2014-02-14 2013-12-31 13F AON CMN Call 35,600 456.25 2,986 527.31 n/a n/a n/a
2013-11-14 2013-09-30 13F AON CMN Call 6,400 -5.88 476 8.68 n/a n/a n/a
2013-08-14 2013-06-30 13F AON CMN Call 6,800 -73.64 438 -69.48 n/a n/a n/a
2013-06-14 2012-12-31 13F/A AON CMN Call 25,800 68.63 1,435 79.38 n/a n/a n/a
2013-06-14 2012-09-30 13F/A AON CMN Call 15,300 446.43 800 510.69 n/a n/a n/a
2013-06-14 2012-06-30 13F/A AON CMN Call 2,800 -92.51 131 -92.86 n/a n/a n/a
2013-06-14 2012-03-31 13F/A AON CMN Call 37,400 1,835 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
(%)
2022-01-20 2021-09-30 13F/A AON CMN Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-11-10 2021-09-30 13F AON CMN Put 0 0 n/a n/a n/a
2021-08-13 2021-06-30 13F AON CMN Put 1,600 382 n/a n/a n/a
2018-11-14 2018-09-30 13F AON CMN Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-08-14 2018-06-30 13F AON CMN Put 400 0.00 55 -1.79 n/a n/a n/a
2018-05-15 2018-03-31 13F AON CMN Put 400 -63.64 56 -61.90 n/a n/a n/a
2018-02-14 2017-12-31 13F AON CMN Put 1,100 -50.00 147 -54.21 n/a n/a n/a
2017-11-14 2017-09-30 13F AON CMN Put 2,200 100.00 321 119.86 n/a n/a n/a
2017-08-14 2017-06-30 13F AON CMN Put 1,100 -87.50 146 -86.02 n/a n/a n/a
2017-05-18 2017-03-31 13F/A AON CMN Put 8,800 10.00 1,044 17.04 n/a n/a n/a
2017-05-15 2017-03-31 13F AON CMN Put 8,800 1,044 n/a n/a n/a
2017-02-14 2016-12-31 13F AON CMN Put 8,000 158.06 892 155.59 n/a n/a n/a
2016-11-14 2016-09-30 13F AON CMN Put 3,100 82.35 349 87.63 n/a n/a n/a
2016-08-15 2016-06-30 13F AON CMN Put 1,700 30.77 186 36.76 n/a n/a n/a
2016-05-13 2016-03-31 13F AON CMN Put 1,300 -72.34 136 -68.59 n/a n/a n/a
2016-02-16 2015-12-31 13F AON CMN Put 4,700 -72.67 433 -71.59 n/a n/a n/a
2015-11-13 2015-09-30 13F AON CMN Put 17,200 -31.20 1,524 -38.84 n/a n/a n/a
2015-08-14 2015-06-30 13F AON CMN Put 25,000 -16.39 2,492 -13.29 n/a n/a n/a
2015-05-15 2015-03-31 13F AON CMN Put 29,900 -30.47 2,874 -29.52 n/a n/a n/a
2015-02-13 2014-12-31 13F AON CMN Put 43,000 59.26 4,078 72.29 n/a n/a n/a
2014-11-14 2014-09-30 13F AON CMN Put 27,000 63.64 2,367 59.29 n/a n/a n/a
2014-08-14 2014-06-30 13F AON CMN Put 16,500 50.00 1,486 60.30 n/a n/a n/a
2014-05-15 2014-03-31 13F AON CMN Put 11,000 -93.37 927 -93.34 n/a n/a n/a
2014-02-14 2013-12-31 13F AON CMN Put 166,000 4,930.30 13,926 5,560.98 n/a n/a n/a
2013-11-14 2013-09-30 13F AON CMN Put 3,300 32.00 246 52.80 n/a n/a n/a
2013-08-14 2013-06-30 13F AON CMN Put 2,500 -83.87 161 -81.32 n/a n/a n/a
2013-06-14 2012-12-31 13F/A AON CMN Put 15,500 5.44 862 12.09 n/a n/a n/a
2013-06-14 2012-09-30 13F/A AON CMN Put 14,700 -21.81 769 -12.51 n/a n/a n/a
2013-06-14 2012-06-30 13F/A AON CMN Put 18,800 -65.57 879 -67.19 n/a n/a n/a
2013-06-14 2012-03-31 13F/A AON CMN Put 54,600 2,679 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.