Aon plc
DE ˙ DB ˙ IE00BLP1HW54
276,10 € ↑5,50 (2,03%)
2026-06-05
DEL PRIS
SecurityDE:4VK / Aon plc
InstitutionLido Advisors, LLC
Latest Disclosed Ownership8,396 shares
Latest Disclosed Value $ 2,710,553
Lido Advisors, LLC ownership in 4VK / Aon plc

On May 13, 2026 - Lido Advisors, LLC filed a 13F-HR form disclosing ownership of 8,396 shares of Aon plc (DE:4VK) valued at $2,351,720 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 10,868 shares of Aon plc. This represents a change in shares of -22.75% during the quarter. The current value of the position is $2,318,136 USD.

Lido Advisors, LLC has a history of taking positions in derivatives of the underlying security (4VK) in the form of stock options.

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 AON SHS CL A G0403H108 8,396 -2,472 -22.75 2,711 -29.87 0.0079
2026-02-10 2025-12-31 13F AON SHS CL A G0403H108 10,868 148 1.38 3,864 1.10 0.0116
2025-11-14 2025-09-30 13F AON SHS CL A G0403H108 10,720 1,091 11.33 3,823 11.27 0.0120
2025-08-13 2025-06-30 13F AON SHS CL A G0403H108 9,629 3,683 61.94 3,435 44.75 0.0134
2025-05-15 2025-03-31 13F AON SHS CL A G0403H108 5,946 -810 -11.99 2,373 -2.18 0.0107
2025-02-14 2024-12-31 13F AON SHS CL A G0403H108 6,756 1,264 23.02 2,427 27.68 0.0110
2024-11-14 2024-09-30 13F AON SHS CL A G0403H108 5,492 2,269 70.40 1,900 100.85 0.0095
2024-08-15 2024-06-30 13F AON SHS CL A G0403H108 3,223 31 0.97 946 -11.17 0.0053
2024-05-15 2024-03-31 13F AON SHS CL A G0403H108 3,192 -157 -4.69 1,065 9.34 0.0063
2024-02-14 2023-12-31 13F AON SHS CL A G0403H108 3,349 128 3.97 975 -6.70 0.0066
2023-11-14 2023-09-30 13F AON SHS CL A G0403H108 3,221 196 6.48 1,044 0.00 0.0079
2023-08-09 2023-06-30 13F AON SHS CL A G0403H108 3,025 129 4.45 1,044 14.35 0.0075
2023-05-15 2023-03-31 13F AON SHS CL A G0403H108 2,896 73 2.59 913 7.79 0.0089
2023-02-14 2022-12-31 13F AON SHS CL A G0403H108 2,823 -84 -2.89 847 8.87 0.0103
2022-11-14 2022-09-30 13F AON SHS CL A G0403H108 2,907 -1,067 -26.85 778 -27.36 0.0098
2022-08-15 2022-06-30 13F AON SHS CL A G0403H108 3,974 -2,209 -35.73 1,071 -46.80 0.0142
2022-05-17 2022-03-31 13F AON SHS CL A G0403H108 6,183 4,216 214.34 2,013 240.61 0.0224
2022-02-15 2021-12-31 13F AON SHS CL A G0403H108 1,967 12 0.61 591 5.91 0.0064
2022-02-15 2021-09-30 13F/A-1 AON SHS CL A G0403H108 1,955 54 2.84 558 22.91 0.0078
2021-11-12 2021-09-30 13F AON SHS CL A G0403H108 1,955 54 559 0.0072
2021-08-12 2021-06-30 13F AON SHS CL A G0403H108 1,901 34 1.82 454 5.58 0.0063
2021-05-13 2021-03-31 13F AON SHS CL A G0403H108 1,867 -20 -1.06 430 8.04 0.0125
2021-02-08 2020-12-31 13F AON SHS CL A G0403H108 1,887 -310 -14.11 398 -12.14 0.0134
2020-11-12 2020-09-30 13F AON SHS CL A G0403H108 2,197 318 16.92 453 25.14 0.0194
2020-08-12 2020-06-30 13F AON SHS CL A G0403H108 1,879 184 10.86 362 29.29 0.0176
2020-05-13 2020-03-31 13F AON SHS CL A G0408V102 1,695 136 8.72 280 -13.85 0.0181
2020-02-07 2019-12-31 13F AON SHS CL A G0408V102 1,559 1,559 325 0.0189
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
(%)
2026-05-13 2026-03-31 13F AON SHS CL A Put 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-10 2025-12-31 13F AON SHS CL A Put 1,300 0.00 459 -1.08 n/a n/a n/a
2025-11-14 2025-09-30 13F AON SHS CL A Put 1,300 464 n/a n/a n/a
2025-08-13 2025-06-30 13F AON SHS CL A Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-05-15 2025-03-31 13F AON SHS CL A Put 1,600 0.00 639 11.15 n/a n/a n/a
2025-02-14 2024-12-31 13F AON SHS CL A Put 1,600 0.00 575 3.80 n/a n/a n/a
2024-11-14 2024-09-30 13F AON SHS CL A Put 1,600 554 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.