Aon plc
DE ˙ DB ˙ IE00BLP1HW54
276,10 € ↑5,50 (2,03%)
2026-06-05
DEL PRIS
SecurityDE:4VK / Aon plc
InstitutionNorthRock Partners, LLC
Latest Disclosed Ownership3,683 shares
Latest Disclosed Value $ 1,188,799
NorthRock Partners, LLC reports 16.74% increase in ownership of 4VK / Aon plc

On May 15, 2026 - NorthRock Partners, LLC filed a 13F-HR form disclosing ownership of 3,683 shares of Aon plc (DE:4VK) valued at $1,031,608 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 3,155 shares of Aon plc. This represents a change in shares of 16.74% during the quarter. The current value of the position is $1,016,876 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)
2026-05-15 2026-03-31 13F AON SHS CL A G0403H108 3,683 528 16.74 1,189 6.74 0.0192
2026-02-17 2025-12-31 13F AON SHS CL A G0403H108 3,155 -1,996 -38.75 1,114 -39.38 0.0188
2025-11-14 2025-09-30 13F AON SHS CL A G0403H108 5,151 552 12.00 1,837 12.02 0.0332
2025-11-14 2025-06-30 13F/A-1 AON SHS CL A G0403H108 4,599 951 26.07 1,640 12.65 0.0427
2025-07-25 2025-06-30 13F AON SHS CL A G0403H108 4,599 951 1,640 0.0424
2025-05-08 2025-03-31 13F AON SHS CL A G0403H108 3,648 2 0.05 1,456 11.15 0.0489
2025-04-22 2024-12-31 13F/A-1 AON SHS CL A G0403H108 3,646 -562 -13.36 1,310 -10.10 0.0427
2025-02-14 2024-12-31 13F AON SHS CL A G0403H108 3,646 -562 1,310 0.0428
2025-04-22 2024-09-30 13F/A-1 AON SHS CL A G0403H108 4,208 231 5.81 1,456 24.76 0.0479
2024-10-30 2024-09-30 13F AON SHS CL A G0403H108 973 -3,004 337 0.0297
2025-04-22 2024-06-30 13F/A-1 AON SHS CL A G0403H108 3,977 298 8.10 1,168 -4.89 0.0439
2024-08-06 2024-06-30 13F AON SHS CL A G0403H108 1,465 -2,214 430 0.0385
2025-04-22 2024-03-31 13F/A-1 AON SHS CL A G0403H108 3,679 -76 -2.02 1,228 12.36 0.0471
2024-05-07 2024-03-31 13F AON SHS CL A G0403H108 1,540 -2,215 514 0.0435
2025-04-22 2023-12-31 13F/A-1 AON SHS CL A G0403H108 3,755 2,723 263.86 1,093 226.95 0.0457
2024-02-08 2023-12-31 13F AON SHS CL A G0403H108 1,291 259 376 0.0350
2023-10-24 2023-09-30 13F AON SHS CL A G0403H108 1,032 309 42.74 335 34.14 0.0349
2023-08-02 2023-06-30 13F AON SHS CL A G0403H108 723 -142 -16.42 250 -8.46 0.0273
2023-05-04 2023-03-31 13F AON SHS CL A G0403H108 865 -216 -19.98 273 -16.05 0.0290
2023-02-01 2022-12-31 13F AON SHS CL A G0403H108 1,081 272 33.62 324 49.31 0.0369
2022-11-02 2022-09-30 13F AON SHS CL A G0403H108 809 -218 -21.23 217 -21.66 0.0252
2022-08-04 2022-06-30 13F AON SHS CL A G0403H108 1,027 -109 -9.60 277 -25.14 0.0288
2022-05-05 2022-03-31 13F AON SHS CL A G0403H108 1,136 -1,934 -63.00 370 -59.91 0.0333
2022-02-07 2021-12-31 13F AON SHS CL A G0403H108 3,070 1,618 111.43 923 -0.32 0.0691
2021-11-12 2021-09-30 13F AON SHS CL A G0403H108 1,452 -1,629 -52.87 926 25.82 0.0757
2021-08-12 2021-06-30 13F AON SHS CL A G0403H108 3,081 -58 -1.85 736 1.94 0.0615
2021-05-11 2021-03-31 13F AON SHS CL A G0403H108 3,139 -371 -10.57 722 -2.70 0.0657
2021-02-08 2020-12-31 13F AON SHS CL A G0403H108 3,510 -92 -2.55 742 -0.13 0.0731
2020-11-12 2020-09-30 13F AON SHS CL A G0403H108 3,602 -469 -11.52 743 -5.23 0.0824
2020-08-13 2020-06-30 13F/A-1 AON SHS CL A G0403H108 4,071 4,071 784 0.0929
2020-08-11 2020-06-30 13F AON SHS CL A G0403H108 4,159 4,159 784 92,831.4907
2020-05-13 2020-03-31 13F AON SHS CL A G0408V102 0 -1,416 -100.00 0 -100.00
2020-02-12 2019-12-31 13F/A-1 AON SHS CL A G0408V102 1,416 1,416 295 0.0312
2020-02-12 2019-12-31 13F AON SHS CL A G0408V102 19,714 295 0.0312
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.