Aon plc
DE ˙ DB ˙ IE00BLP1HW54
272,30 € ↓ -1,70 (-0,62%)
2026-06-03
AKTIENPREIS
SecurityDE:4VK / Aon plc
InstitutionOppenheimer & Co Inc
Latest Disclosed Ownership5,955 shares
Latest Disclosed Value $ 1,922,155
Oppenheimer & Co Inc reports 112.91% increase in ownership of 4VK / Aon plc

On April 23, 2026 - Oppenheimer & Co Inc filed a 13F-HR form disclosing ownership of 5,955 shares of Aon plc (DE:4VK) valued at $1,667,996 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 2,797 shares of Aon plc. This represents a change in shares of 112.91% during the quarter. The current value of the position is $1,621,546 USD.

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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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)
2026-04-23 2026-03-31 13F AON SHS CL A G0403H108 5,955 3,158 112.91 1,922 94.73 0.0234
2026-02-02 2025-12-31 13F AON SHS CL A G0403H108 2,797 225 8.75 987 7.63 0.0140
2025-11-06 2025-09-30 13F AON SHS CL A G0403H108 2,572 -64 -2.43 917 -2.45 0.0112
2025-07-31 2025-06-30 13F AON SHS CL A G0403H108 2,636 -150 -5.38 940 -15.39 0.0124
2025-04-23 2025-03-31 13F AON SHS CL A G0403H108 2,786 370 15.31 1,112 28.14 0.0168
2025-02-05 2024-12-31 13F AON SHS CL A G0403H108 2,416 1,600 196.08 868 207.45 0.0129
2024-11-05 2024-09-30 13F AON SHS CL A G0403H108 816 20 2.51 282 21.03 0.0043
2024-08-08 2024-06-30 13F AON SHS CL A G0403H108 796 30 3.92 234 -8.63 0.0037
2024-05-07 2024-03-31 13F AON SHS CL A G0403H108 766 13 1.73 256 16.44 0.0042
2024-02-13 2023-12-31 13F AON SHS CL A G0403H108 753 -104 -12.14 219 -20.94 0.0040
2023-11-08 2023-09-30 13F AON SHS CL A G0403H108 857 -62 -6.75 278 -12.62 0.0057
2023-08-03 2023-06-30 13F AON SHS CL A G0403H108 919 17 1.88 317 11.62 0.0063
2023-05-10 2023-03-31 13F AON SHS CL A G0403H108 902 153 20.43 284 26.79 0.0060
2023-02-08 2022-12-31 13F AON SHS CL A G0403H108 749 -3 -0.40 225 11.44 0.0051
2022-11-14 2022-09-30 13F AON SHS CL A G0403H108 752 -94 -11.11 201 -11.84 0.0047
2022-08-08 2022-06-30 13F AON SHS CL A G0403H108 846 45 5.62 228 -12.64 0.0049
2022-05-12 2022-03-31 13F AON SHS CL A G0403H108 801 -115 -12.55 261 -5.09 0.0047
2022-02-02 2021-12-31 13F AON SHS CL A G0403H108 916 35 3.97 275 9.13 0.0048
2021-11-12 2021-09-30 13F AON SHS CL A G0403H108 881 45 5.38 252 26.00 0.0047
2021-08-03 2021-06-30 13F AON SHS CL A G0403H108 836 836 200 0.0036
2019-10-31 2019-09-30 13F AON SHS CL A G0408V102 0 -1,774 -100.00 0 -100.00
2019-08-09 2019-06-30 13F AON SHS CL A G0408V102 1,774 1,774 342 0.0093
2015-11-13 2015-09-30 13F AON SHS CL A G0408V102 0 -4,449 -100.00 0 -100.00
2015-08-12 2015-06-30 13F AON SHS CL A G0408V102 4,449 -823 -15.61 443 -12.62 0.0123
2015-05-08 2015-03-31 13F AON SHS CL A G0408V102 5,272 563 11.96 507 13.42 0.0138
2015-02-10 2014-12-31 13F AON SHS CL A G0408V102 4,709 4,709 447 0.0128
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.