Aon plc
DE ˙ DB ˙ IE00BLP1HW54
276,10 € ↑5,50 (2,03%)
2026-06-05
DEL PRIS
SecurityDE:4VK / Aon plc
InstitutionMidWestOne Financial Group, Inc.
Latest Disclosed Ownership9,103 shares
Latest Disclosed Value $ 3,212,267
MidWestOne Financial Group, Inc. ownership in 4VK / Aon plc

On February 11, 2026 - MidWestOne Financial Group, Inc. filed a 13F-HR form disclosing ownership of 9,103 shares of Aon plc (DE:4VK) valued at $2,745,465 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 6, 2025 disclosing 9,103 shares of Aon plc. This represents a change in shares of 0.00% during the quarter. The current value of the position is $2,513,338 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.

Upgrade to unlock premium data and export to Excel .

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 SHS CL A G0403H108 9,103 0 0.00 3,212 -1.02 0.3567
2025-11-06 2025-09-30 13F AON SHS CL A G0403H108 9,103 0 0.00 3,246 -0.06 0.3942
2025-08-14 2025-06-30 13F AON SHS CL A G0403H108 9,103 0 0.00 3,248 -10.60 0.4217
2025-05-15 2025-03-31 13F AON SHS CL A G0403H108 9,103 0 0.00 3,633 11.10 0.5159
2025-02-18 2024-12-31 13F AON SHS CL A G0403H108 9,103 0 0.00 3,269 3.81 0.4592
2024-11-15 2024-09-30 13F AON SHS CL A G0403H108 9,103 0 0.00 3,150 17.85 0.4347
2024-08-15 2024-06-30 13F AON SHS CL A G0403H108 9,103 0 0.00 2,672 -12.02 0.4819
2024-05-15 2024-03-31 13F AON SHS CL A G0403H108 9,103 0 0.00 3,038 14.65 0.5458
2024-02-15 2023-12-31 13F AON SHS CL A G0403H108 9,103 0 0.00 2,649 -10.23 0.5033
2023-11-15 2023-09-30 13F AON SHS CL A G0403H108 9,103 -714 -7.27 2,951 -12.90 0.6690
2023-08-15 2023-06-30 13F AON SHS CL A G0403H108 9,817 0 0.00 3,389 9.47 0.7344
2023-05-16 2023-03-31 13F AON SHS CL A G0403H108 9,817 0 0.00 3,095 -22.80 0.6992
2023-02-14 2022-12-31 13F AON SHS CL A G0403H108 9,817 714 7.84 4,009 64.44 0.8949
2022-11-15 2022-09-30 13F AON SHS CL A G0403H108 9,103 0 0.00 2,438 -0.69 0.6206
2022-08-16 2022-06-30 13F AON SHS CL A G0403H108 9,103 -725 -7.38 2,455 -23.28 0.6074
2022-05-17 2022-03-31 13F AON SHS CL A G0403H108 9,828 -469 -4.55 3,200 3.39 0.6894
2022-02-15 2021-12-31 13F AON SHS CL A G0403H108 10,297 0 0.00 3,095 5.16 0.6493
2021-11-15 2021-09-30 13F AON SHS CL A G0403H108 10,297 714 7.45 2,943 28.63 0.6896
2021-08-17 2021-06-30 13F AON SHS CL A G0403H108 9,583 0 0.00 2,288 3.76 0.5400
2021-05-18 2021-03-31 13F AON SHS CL A G0403H108 9,583 0 0.00 2,205 8.89 0.5337
2021-02-17 2020-12-31 13F AON SHS CL A G0403H108 9,583 0 0.00 2,025 2.43 0.5552
2020-11-17 2020-09-30 13F AON SHS CL A G0403H108 9,583 9,583 1,977 0.6560
2020-08-17 2020-06-30 13F AON SHS CL A G0408V102 0 -9,583 -100.00 0 -100.00
2020-05-14 2020-03-31 13F AON SHS CL A G0408V102 9,583 0 0.00 1,582 -20.74 0.5813
2020-02-14 2019-12-31 13F AON SHS CL A G0408V102 9,583 -714 -6.93 1,996 0.15 0.4147
2019-11-14 2019-09-30 13F AON SHS CL A G0408V102 10,297 0 0.00 1,993 0.30 0.6155
2019-08-15 2019-06-30 13F AON SHS CL A G0408V102 10,297 10,297 1,987 0.5455
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.