Aon plc
DE ˙ DB ˙ IE00BLP1HW54
276,10 € ↑5,50 (2,03%)
2026-06-05
DEL PRIS
SecurityDE:4VK / Aon plc
InstitutionBnp Paribas Arbitrage, Sa
Latest Disclosed Ownership368,360 shares
Latest Disclosed Value $ 118,899,241
Bnp Paribas Arbitrage, Sa ownership in 4VK / Aon plc

On May 12, 2026 - Bnp Paribas Arbitrage, Sa filed a 13F-HR form disclosing ownership of 368,360 shares of Aon plc (DE:4VK) valued at $103,177,636 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 422,064 shares of Aon plc. This represents a change in shares of -12.72% during the quarter. The current value of the position is $101,704,196 USD.

Bnp Paribas Arbitrage, Sa 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)
2026-05-12 2026-03-31 13F Aon Equity G0403H108 368,360 -53,704 -12.72 118,899 -20.17 0.0059
2026-02-10 2025-12-31 13F Aon Equity G0403H108 422,064 185,296 78.26 148,938 76.41 0.0675
2025-11-13 2025-09-30 13F Aon Equity G0403H108 236,768 -58,783 -19.89 84,427 -19.93 0.0451
2025-08-14 2025-06-30 13F Aon Equity G0403H108 295,551 -72,740 -19.75 105,441 -28.26 0.0604
2025-05-14 2025-03-31 13F Aon Equity G0403H108 368,291 68,975 23.04 146,981 36.72 0.0864
2025-02-14 2024-12-31 13F Aon Equity G0403H108 299,316 299,316 107,502 0.0603
2023-02-14 2022-12-31 13F Aon Equity G0403H108 0 -62,580 -100.00 0 -100.00
2022-11-16 2022-09-30 13F/A-1 Aon Equity G0403H108 62,580 62,580 16,763 0.0268
2022-11-15 2022-09-30 13F Aon Equity G0403H108 62,580 62,580 16,763 0.0040
2020-05-13 2020-03-31 13F AON EQUITY G0408V102 0 -57,662 -100.00 0 -100.00
2020-02-12 2019-12-31 13F AON EQUITY G0408V102 57,662 -21,726 -27.37 12,010 -21.85 0.0219
2019-11-07 2019-09-30 13F AON EQUITY G0408V102 79,388 -35,163 -30.70 15,367 -30.48 0.0273
2019-07-30 2019-06-30 13F AON EQUITY G0408V102 114,551 -74,734 -39.48 22,106 -31.58 0.0440
2019-04-25 2019-03-31 13F AON EQUITY G0408V102 189,285 50,169 36.06 32,311 59.78 0.0698
2019-02-12 2018-12-31 13F AON EQUITY G0408V102 139,116 -31,682 -18.55 20,222 -23.01 0.0478
2018-11-07 2018-09-30 13F AON EQUITY G0408V102 170,798 16,918 10.99 26,265 24.44 0.0388
2018-07-25 2018-06-30 13F AON EQUITY G0408V102 153,880 59,496 63.04 21,108 59.37 0.0351
2018-05-11 2018-03-31 13F AON EQUITY G0408V102 94,384 5,743 6.48 13,245 11.51 0.0248
2018-03-05 2017-12-31 13F/A-1 AON EQUITY G0408V102 88,641 -114,647 -56.40 11,878 -60.01 0.0211
2018-02-01 2017-12-31 13F AON EQUITY G0408V102 88,641 -114,647 11,878
2017-11-03 2017-09-30 13F AON PLC SHS STOCK G0408V102 203,288 47,965 30.88 29,700 43.83 0.0726
2017-08-03 2017-06-30 13F AON PLC SHS STOCK G0408V102 155,323 -80,448 -34.12 20,650 -26.21 0.0623
2017-05-03 2017-03-31 13F AON PLC SHS STOCK G0408V102 235,771 171,051 264.29 27,984 287.68 0.0739
2017-02-14 2016-12-31 13F AON PLC SHS STOCK G0408V102 64,720 27,729 74.96 7,218 73.47 0.0338
2016-10-05 2016-09-30 13F * AON PLC SHS CL A STOCK G0408V102 36,991 -28,191 -43.25 4,161 -41.55 0.0171
2016-07-06 2016-06-30 13F * AON PLC SHS CL A STOCK G0408V102 65,182 -109,794 -62.75 7,120 -61.05 0.0321
2016-04-22 2016-03-31 13F * AON PLC SHS CL A STOCK G0408V102 174,976 95,454 120.03 18,276 149.26 0.0773
2016-04-19 2015-12-31 13F/A-1 * AON PLC SHS CL A STOCK G0408V102 79,522 -36,772 -31.62 7,333 -28.84 0.0357
2016-02-10 2015-12-31 13F * AON PLC SHS CL A STOCK G0408V102 79,522 7,333
2015-11-13 2015-09-30 13F * AON PLC SHS CL A STOCK G0408V102 116,294 54,935 89.53 10,305 68.48 0.0258
2015-08-14 2015-06-30 13F AON PLC SHS CL A STOCK G0408V102 61,359 -2,252 -3.54 6,116 0.03 0.0171
2015-05-15 2015-03-31 13F * AON PLC SHS CL A STOCK G0408V102 63,611 -106,685 -62.65 6,114 -62.14 0.0169
2015-03-10 2014-12-31 13F/A-1 * AON PLC SHS CL A STOCK G0408V102 170,296 37,619 28.35 16,149 38.84 0.0572
2015-02-11 2014-12-31 13F * AON PLC SHS CL A STOCK G0408V102 170,296 16,149
2014-11-12 2014-09-30 13F * AON PLC SHS CL A STOCK G0408V102 132,677 13,199 11.05 11,632 8.06 0.0101
2014-08-14 2014-06-30 13F/A-1 * AON PLC SHS CL A STOCK G0408V102 119,478 -10,811 -8.30 10,764 -2.67 0.0101
2014-08-14 2014-06-30 13F AON PLC SHS CL A STOCK G0408V102 119,478 10,764
2014-05-13 2014-03-31 13F AON PLC SHS STOCK G0408V102 130,289 -31,725 -19.58 11,059 -18.64 0.0086
2014-04-02 2013-12-31 13F/A-1 AON PLC SHS STOCK G0408V102 162,014 -12,910 -7.38 13,591 4.38 0.0099
2014-02-12 2013-12-31 13F AON PLC SHS STOCK G0408V102 162,014 13,591
2013-11-13 2013-09-30 13F AON PLC SHS STOCK G0408V102 174,924 125,500 253.93 13,021 309.47 0.0095
2013-08-13 2013-06-30 13F AON PLC SHS STOCK G0408V102 49,424 49,424 3,180 0.0022
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
(%)
2025-08-14 2025-06-30 13F Aon Option Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-05-14 2025-03-31 13F Aon Option Call 100 3,991 n/a n/a n/a
2023-02-14 2022-12-31 13F Aon Option Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-11-16 2022-09-30 13F/A Aon Option Call 160 4,286 n/a n/a n/a
2022-11-15 2022-09-30 13F Aon Option Call 160 4,286 n/a n/a n/a
2019-04-25 2019-03-31 13F AON OPTION Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-02-12 2018-12-31 13F AON OPTION Call 46 0.00 669 -5.52 n/a n/a n/a
2018-11-07 2018-09-30 13F AON OPTION Call 46 707 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
(%)
2025-08-14 2025-06-30 13F Aon Option Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-05-14 2025-03-31 13F Aon Option Put 182 0.00 7,263 11.12 n/a n/a n/a
2025-02-14 2024-12-31 13F Aon Option Put 182 6,537 n/a n/a n/a
2023-02-14 2022-12-31 13F Aon Option Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-11-16 2022-09-30 13F/A Aon Option Put 707 18,938 n/a n/a n/a
2022-11-15 2022-09-30 13F Aon Option Put 707 18,938 n/a n/a n/a
2019-04-25 2019-03-31 13F AON OPTION Put 0 -100.00 0 -100.00 n/a n/a n/a
2019-02-12 2018-12-31 13F AON OPTION Put 46 0.00 669 -5.52 n/a n/a n/a
2018-11-07 2018-09-30 13F AON OPTION Put 46 707 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.