Aon plc
DE ˙ DB ˙ IE00BLP1HW54
276,10 € ↑5,50 (2,03%)
2026-06-05
DEL PRIS
SecurityDE:4VK / Aon plc
InstitutionCohen Klingenstein LLC
Latest Disclosed Ownership5,000 shares
Latest Disclosed Value $ 1,613,900
Cohen Klingenstein LLC ownership in 4VK / Aon plc

On April 15, 2026 - Cohen Klingenstein LLC filed a 13F-HR form disclosing ownership of 5,000 shares of Aon plc (DE:4VK) valued at $1,400,500 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 5,000 shares of Aon plc. This represents a change in shares of 0.00% during the quarter. The current value of the position is $1,380,500 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)
2026-04-15 2026-03-31 13F Aon COM G0403H108 5,000 0 0.00 1,614 -8.56 0.0522
2026-01-20 2025-12-31 13F Aon COM G0403H108 5,000 0 0.00 1,764 -1.01 0.0536
2025-10-16 2025-09-30 13F Aon COM G0403H108 5,000 0 0.00 1,783 -0.06 0.0559
2025-07-18 2025-06-30 13F Aon COM G0403H108 5,000 0 0.00 1,784 -10.63 0.0595
2025-04-15 2025-03-31 13F Aon COM G0403H108 5,000 0 0.00 1,995 11.14 0.0723
2025-01-15 2024-12-31 13F Aon COM G0403H108 5,000 0 0.00 1,796 3.82 0.0614
2024-10-16 2024-09-30 13F Aon COM G0403H108 5,000 0 0.00 1,730 17.86 0.0603
2024-07-15 2024-06-30 13F Aon COM G0403H108 5,000 0 0.00 1,468 -12.05 0.0533
2024-04-12 2024-03-31 13F Aon COM G0403H108 5,000 0 0.00 1,669 14.64 0.0621
2024-01-16 2023-12-31 13F Aon COM G0403H108 5,000 0 0.00 1,455 -10.24 0.0595
2023-10-13 2023-09-30 13F Aon COM G0403H108 5,000 0 0.00 1,621 -6.08 0.0734
2023-07-14 2023-06-30 13F Aon COM G0403H108 5,000 0 0.00 1,726 9.52 0.0748
2023-04-14 2023-03-31 13F Aon COM G0403H108 5,000 0 0.00 1,576 5.07 0.0740
2023-01-13 2022-12-31 13F Aon COM G0403H108 5,000 0 0.00 1,501 12.02 0.0755
2022-10-12 2022-09-30 13F Aon COM G0403H108 5,000 0 0.00 1,339 -0.67 0.0710
2022-07-15 2022-06-30 13F Aon COM G0403H108 5,000 0 0.00 1,348 -17.20 0.0676
2022-04-14 2022-03-31 13F Aon COM G0403H108 5,000 0 0.00 1,628 8.32 0.0676
2022-01-14 2021-12-31 13F Aon COM G0403H108 5,000 0 0.00 1,503 5.18 0.0594
2021-10-15 2021-09-30 13F Aon COM G0403H108 5,000 0 0.00 1,429 19.68 0.0625
2021-07-16 2021-06-30 13F Aon COM G0403H108 5,000 0 0.00 1,194 3.74 0.0513
2021-04-15 2021-03-31 13F Aon COM G0403H108 5,000 0 0.00 1,151 9.00 0.0531
2021-01-25 2020-12-31 13F/A-1 Aon COM G0403H108 5,000 0 0.00 1,056 2.33 0.0528
2021-01-19 2020-12-31 13F Aon COM G0403H108 5,000 0 1,056 52,738.0855
2020-10-19 2020-09-30 13F Aon COM G0403H108 5,000 0 0.00 1,032 7.17 0.0582
2020-07-15 2020-06-30 13F Aon COM G0403H108 5,000 0 0.00 963 16.73 0.0591
2020-04-15 2020-03-31 13F Aon COM G0403H108 5,000 0 0.00 825 -20.75 0.0610
2020-01-15 2019-12-31 13F Aon COM G0408V102 5,000 0 0.00 1,041 7.54 0.0605
2019-10-17 2019-09-30 13F Aon COM G0408V102 5,000 5,000 968 0.0608
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.