Warren Buffett's AON Position Overview
Warren Buffett (via Berkshire Hathaway INC) currently holds 0 shares of Aon plc (AON) worth $0, representing 0.00% of the portfolio. First purchased in 2021-Q1, this long-term strategic position has been held for 21 quarters.
Based on 13F filings, Warren Buffett has maintained a strategic position in AON, demonstrating sustained confidence in this investment. Largest addition occurred in Q2 2021, adding 299,854 shares. Largest reduction occurred in Q1 2026, reducing 3.6 M shares.
Analysis based on 13F filings available since 2013 Q2
Warren Buffett's Aon plc (AON) Holding Value Over Time
Track share changes against reported price movement
Quarterly Aon plc (AON) Trades by Warren Buffett
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2026 | -3.6 M | Sold Out | 0 | $0.00 |
| Q4 2025 | -497,005 | Reduce 12.12% | 3.6 M | $352.88 |
| Q3 2023 | -235,000 | Reduce 5.42% | 4.1 M | $324.22 |
| Q1 2023 | -61,000 | Reduce 1.39% | 4.34 M | $315.29 |
| Q2 2021 | +299,854 | Add 7.32% | 4.4 M | $238.76 |
| Q1 2021 | +4.1 M | New Buy | 4.1 M | $230.11 |
Warren Buffett's Aon plc Investment FAQs
Warren Buffett first purchased Aon plc (AON) in Q1 2021, acquiring 4,096,146 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Warren Buffett has held Aon plc (AON) for 21 quarters since Q1 2021.
Warren Buffett's largest addition to Aon plc (AON) was in Q1 2021, adding 4,096,146 shares worth $942.56 M.
According to the latest 13F filing for Q1 2026, Warren Buffett's firm, Berkshire Hathaway INC, owns 0 shares of Aon plc (AON), valued at approximately $0.
As of the Q1 2026 filing, Aon plc (AON) represents approximately 0.00% of Warren Buffett's publicly disclosed stock portfolio, making it one of their key holdings.
Warren Buffett's peak holding in Aon plc (AON) was 4,396,000 shares, as reported at the end of Q2 2021.