Aon plc
DE ˙ DB ˙ IE00BLP1HW54
276,10 € ↑5,50 (2,03%)
2026-06-05
DEL PRIS
SecurityDE:4VK / Aon plc
InstitutionTrue North Advisors, LLC
Latest Disclosed Ownership1,315 shares
Latest Disclosed Value $ 424,456
True North Advisors, LLC reports 21.20% increase in ownership of 4VK / Aon plc

On May 7, 2026 - True North Advisors, LLC filed a 13F-HR form disclosing ownership of 1,315 shares of Aon plc (DE:4VK) valued at $368,332 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 22, 2026 disclosing 1,085 shares of Aon plc. This represents a change in shares of 21.20% during the quarter. The current value of the position is $363,072 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)
2026-05-07 2026-03-31 13F AON SHS CL A G0403H108 1,315 230 21.20 424 10.99 0.0484
2026-01-22 2025-12-31 13F AON SHS CL A G0403H108 1,085 12 1.12 383 0.00 0.0495
2025-10-14 2025-09-30 13F AON SHS CL A G0403H108 1,073 62 6.13 383 6.11 0.0607
2025-07-16 2025-06-30 13F AON SHS CL A G0403H108 1,011 280 38.30 361 23.71 0.0691
2025-05-12 2025-03-31 13F AON SHS CL A G0403H108 731 0 0.00 292 11.07 0.0517
2025-01-17 2024-12-31 13F AON SHS CL A G0403H108 731 91 14.22 263 18.55 0.0619
2024-10-08 2024-09-30 13F AON SHS CL A G0403H108 640 -73 -10.24 221 5.74 0.0579
2024-08-12 2024-06-30 13F AON SHS CL A G0403H108 713 0 0.00 209 -11.81 0.0559
2024-04-12 2024-03-31 13F AON SHS CL A G0403H108 713 -16 -2.19 238 11.79 0.0657
2024-01-22 2023-12-31 13F AON SHS CL A G0403H108 729 2 0.28 212 -9.79 0.0545
2023-11-14 2023-09-30 13F AON SHS CL A G0403H108 727 0 0.00 236 -6.00 0.0726
2023-08-10 2023-06-30 13F AON SHS CL A G0403H108 727 0 0.00 251 9.17 0.0712
2023-05-15 2023-03-31 13F AON SHS CL A G0403H108 727 727 229 0.0674
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.