Warren Buffett - Berkshire Hathaway Inc
Period:    Q1 2026
Portfolio date:    31 Mar 2026
No. of stocks:    29
Portfolio value:    $263,095,703,570
Holdings Activity Buys Sells    History
Holding/activity history for  Aon Plc (AON)
Period Shares % of Portfolio Activity % Change to Portfolio Reported Price Value Filing
2026   Q1 0 0.00 Sell 100.00% 0.46 SEC
2025   Q4 3,602,995 0.46 Reduce 12.12% 0.07 $352.88 $1,271,424,876 SEC
2025   Q3 4,100,000 0.55 $356.58 $1,461,978,000 SEC
2025   Q2 4,100,000 0.57 $356.76 $1,462,716,000 SEC
2025   Q1 4,100,000 0.63 $399.09 $1,636,269,000 SEC
2024   Q4 4,100,000 0.55 $359.16 $1,472,556,000 SEC
2024   Q3 4,100,000 0.53 $345.99 $1,418,559,000 SEC
2024   Q2 4,100,000 0.43 $293.58 $1,203,678,000 SEC
2024   Q1 4,100,000 0.41 $333.72 $1,368,252,000 SEC
2023   Q4 4,100,000 0.34 $291.02 $1,193,182,000 SEC
2023   Q3 4,100,000 0.42 Reduce 5.42% 0.02 $324.22 $1,329,302,000 SEC
2023   Q2 4,335,000 0.43 $345.20 $1,496,442,000 SEC
2023   Q1 4,335,000 0.42 Reduce 1.39% <0.01 $315.29 $1,366,782,150 SEC
2022   Q4 4,396,000 0.44 $300.14 $1,319,415,440 SEC
2022   Q3 4,396,000 0.40 $267.87 $1,177,556,000 SEC
2022   Q2 4,396,000 0.40 $269.68 $1,185,514,000 SEC
2022   Q1 4,396,000 0.39 $325.63 $1,431,470,000 SEC
2021   Q4 4,396,000 0.40 $300.56 $1,321,261,000 SEC
2021   Q3 4,396,000 0.43 $285.77 $1,256,244,000 SEC
2021   Q2 4,396,000 0.36 Add 7.32% 0.02 $238.76 $1,049,589,000 SEC
2021   Q1 4,096,146 0.35 Buy 0.35 $230.11 $942,564,000 SEC