Aon plc
DE ˙ DB ˙ IE00BLP1HW54
272,30 € ↓ -1,70 (-0,62%)
2026-06-03
AKTIENPREIS
SecurityDE:4VK / Aon plc
InstitutionParallel Advisors, LLC
Latest Disclosed Ownership1,964 shares
Latest Disclosed Value $ 693,389
Parallel Advisors, LLC ownership in 4VK / Aon plc

On February 11, 2026 - Parallel Advisors, LLC filed a 13F-HR form disclosing ownership of 1,964 shares of Aon plc (DE:4VK) valued at $592,342 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 1,999 shares of Aon plc. This represents a change in shares of -1.75% during the quarter. The current value of the position is $534,797 USD.

Parallel Advisors, LLC 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 .

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)
2026-02-11 2025-12-31 13F AON Stock G0403H108 1,964 -35 -1.75 693 -2.67 0.0127
2025-11-13 2025-09-30 13F AON Stock G0403H108 1,999 -47 -2.30 713 -2.33 0.0131
2025-07-08 2025-06-30 13F AON Stock G0403H108 2,046 -157 -7.13 730 -17.06 0.0146
2025-04-08 2025-03-31 13F AON Stock G0403H108 2,203 -19 -0.86 879 10.15 0.0198
2025-02-10 2024-12-31 13F AON Stock G0403H108 2,222 68 3.16 798 7.11 0.0180
2024-11-13 2024-09-30 13F AON Stock G0403H108 2,154 50 2.38 745 20.75 0.0175
2024-08-08 2024-06-30 13F AON Stock G0403H108 2,104 -290 -12.11 618 -22.78 0.0158
2024-05-06 2024-03-31 13F AON Stock G0403H108 2,394 76 3.28 799 18.55 0.0217
2024-02-12 2023-12-31 13F AON Stock G0403H108 2,318 -128 -5.23 675 -15.01 0.0200
2024-05-20 2023-09-30 13F/A-1 AON Stock G0403H108 2,446 7 0.29 793 -5.82 0.0264
2023-11-14 2023-09-30 13F AON Stock G0403H108 2,446 7 793 0.0264
2024-05-20 2023-06-30 13F/A-1 AON Stock G0403H108 2,439 101 4.32 842 14.25 0.0271
2023-08-04 2023-06-30 13F AON Stock G0403H108 2,439 101 842 0.0271
2024-05-20 2023-03-31 13F/A-1 AON Stock G0403H108 2,338 9 0.39 737 5.44 0.0249
2023-04-25 2023-03-31 13F AON Stock G0403H108 2,338 9 737 0.0249
2023-02-06 2022-12-31 13F AON Stock G0403H108 2,329 12 0.52 699 12.56 0.0303
2022-11-10 2022-09-30 13F AON Stock G0403H108 2,317 111 5.03 621 4.37 0.0286
2022-08-01 2022-06-30 13F AON Stock G0403H108 2,206 -28 -1.25 595 -18.38 0.0273
2022-04-28 2022-03-31 13F AON Stock G0403H108 2,234 124 5.88 729 14.98 0.0289
2022-01-20 2021-12-31 13F AON Stock G0403H108 2,110 61 2.98 634 8.19 0.0235
2021-11-02 2021-09-30 13F/A-1 AON Stock G0403H108 2,049 170 9.05 586 30.51 0.0236
2021-08-06 2021-06-30 13F AON Stock G0403H108 1,879 94 5.27 449 9.25 0.0190
2021-04-23 2021-03-31 13F AON Stock G0403H108 1,785 134 8.12 411 17.77 0.0194
2021-02-02 2020-12-31 13F AON Stock G0403H108 1,651 -71 -4.12 349 -1.69 0.0189
2020-10-27 2020-09-30 13F AON Stock G0403H108 1,722 642 59.44 355 70.67 0.0220
2020-07-16 2020-06-30 13F AON Stock G0403H108 1,080 43 4.15 208 21.64 0.0136
2020-04-27 2020-03-31 13F AON Stock G0403H108 1,037 18 1.77 171 -19.34 0.0138
2020-01-30 2019-12-31 13F AON Stock G0408V102 1,019 -3 -0.29 212 7.07 0.0159
2019-11-01 2019-09-30 13F AON Stock G0408V102 1,022 138 15.61 198 15.79 0.0170
2019-08-05 2019-06-30 13F AON Stock G0408V102 884 -20 -2.21 171 11.04 0.0167
2019-05-01 2019-03-31 13F AON Stock G0408V102 904 270 42.59 154 67.39 0.0173
2019-02-05 2018-12-31 13F AON Stock G0408V102 634 0 0.00 92 -5.15 0.0128
2018-11-01 2018-09-30 13F AON Stock G0408V102 634 0 0.00 97 12.79 0.0120
2018-07-30 2018-06-30 13F AON Stock G0408V102 634 -16 -2.46 86 -5.49 0.0123
2018-05-08 2018-03-31 13F AON Stock G0408V102 650 -85 -11.56 91 -7.14 0.0142
2018-02-13 2017-12-31 13F AON PLC SHS CL A Stock G0408V102 735 23 3.23 98 -2.97 0.0160
2017-11-15 2017-09-30 13F/A-1 AON PLC SHS CL A Stock G0408V102 712 -28 -3.78 101 -0.98 0.0174
2017-08-07 2017-06-30 13F AON PLC SHS CL A Stock G0408V102 740 106 16.72 102 34.21 0.0192
2017-05-12 2017-03-31 13F/A-1 AON PLC SHS CL A Stock G0408V102 634 51 8.75 76 16.92 0.0151
2017-05-12 2017-03-31 13F AON PLC SHS CL A Stock G0408V102 634 76
2017-02-14 2016-12-31 13F AON PLC SHS CL A Stock G0408V102 583 583 65 0.0153
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
(%)
2022-01-19 2021-12-31 13F AON Stock Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-10-22 2021-09-30 13F AON Stock Call 1,879 449 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.