| Oct 27, 2025 | BERKSHIRE HATHAWAY INC | Open Market Sale | 401514 | 135.36 | $ 54,347,248.68 | 
| Oct 27, 2025 | BUFFETT WARREN E | Open Market Sale | 401514 | 135.36 | $ 54,347,248.68 | 
| Sep 22, 2025 | Maughan David Paul | Option Excercise | 7501 | 130.16 | $ 976,330.16 | 
| Aug 15, 2025 | Schoppert Wendy Lee | Grant | 369 | 0.00 | $ 0.00 | 
| Aug 15, 2025 | Pullin Dennis W | Grant | 369 | 0.00 | $ 0.00 | 
| Aug 15, 2025 | Schechter Adam H | Grant | 369 | 0.00 | $ 0.00 | 
| Aug 15, 2025 | YALE PHYLLIS R | Grant | 369 | 0.00 | $ 0.00 | 
| Aug 15, 2025 | DESOER BARBARA J | Grant | 369 | 0.00 | $ 0.00 | 
| Aug 15, 2025 | Hollar Jason M. | Grant | 369 | 0.00 | $ 0.00 | 
| Aug 15, 2025 | Moore Gregory J. | Grant | 369 | 0.00 | $ 0.00 | 
| Aug 15, 2025 | Arway Pamela M | Grant | 369 | 0.00 | $ 0.00 | 
| Jul 31, 2025 | BERKSHIRE HATHAWAY INC | Open Market Sale | 1635962 | 140.61 | $ 230,024,764.20 | 
| Jul 31, 2025 | BUFFETT WARREN E | Open Market Sale | 1635962 | 140.61 | $ 230,024,764.20 | 
| Jul 23, 2025 | HEARTY JAMES O | Open Market Sale | 2351 | 150.00 | $ 352,650.00 | 
| May 22, 2025 | BERKSHIRE HATHAWAY INC | Open Market Sale | 200000 | 138.85 | $ 27,769,398.68 | 
| May 22, 2025 | BUFFETT WARREN E | Open Market Sale | 200000 | 138.85 | $ 27,769,398.68 | 
| May 15, 2025 | Schoppert Wendy Lee | Grant | 348 | 0.00 | $ 0.00 | 
| May 15, 2025 | Schechter Adam H | Grant | 348 | 0.00 | $ 0.00 | 
| May 15, 2025 | Pullin Dennis W | Grant | 348 | 0.00 | $ 0.00 | 
| May 15, 2025 | Arway Pamela M | Grant | 348 | 0.00 | $ 0.00 | 
| May 15, 2025 | Moore Gregory J. | Grant | 348 | 0.00 | $ 0.00 | 
| May 15, 2025 | Hollar Jason M. | Grant | 348 | 0.00 | $ 0.00 | 
| May 15, 2025 | BERG CHARLES | Grant | 348 | 0.00 | $ 0.00 | 
| May 15, 2025 | DESOER BARBARA J | Grant | 348 | 0.00 | $ 0.00 | 
| May 15, 2025 | YALE PHYLLIS R | Grant | 348 | 0.00 | $ 0.00 | 
| May 8, 2025 | BERKSHIRE HATHAWAY INC | Open Market Sale | 1145938 | 147.11 | $ 168,576,647.30 | 
| May 8, 2025 | BUFFETT WARREN E | Open Market Sale | 1145938 | 147.11 | $ 168,576,647.30 | 
| Mar 15, 2025 | Rodriguez Javier | Grant | 18822 | 0.00 | $ 0.00 | 
| Mar 15, 2025 | HEARTY JAMES O | Grant | 1185 | 0.00 | $ 0.00 | 
| Mar 15, 2025 | HEARTY JAMES O | Option Excercise | 2319 | 143.45 | $ 332,660.55 | 
| Mar 15, 2025 | Pullin Dennis W | Grant | 349 | 0.00 | $ 0.00 | 
| Mar 15, 2025 | Moore Gregory J. | Grant | 349 | 0.00 | $ 0.00 | 
| Mar 15, 2025 | BERRY CHRISTOPHER MICHAEL | Grant | 3834 | 0.00 | $ 0.00 | 
| Mar 15, 2025 | Hollar Jason M. | Grant | 349 | 0.00 | $ 0.00 | 
| Mar 15, 2025 | BERG CHARLES | Grant | 349 | 0.00 | $ 0.00 | 
| Mar 15, 2025 | Arway Pamela M | Grant | 349 | 0.00 | $ 0.00 | 
| Mar 15, 2025 | YALE PHYLLIS R | Grant | 349 | 0.00 | $ 0.00 | 
| Mar 15, 2025 | Waters Kathleen Alyce | Grant | 3346 | 0.00 | $ 0.00 | 
| Mar 15, 2025 | Waters Kathleen Alyce | Option Excercise | 7338 | 143.45 | $ 1,052,636.10 | 
| Mar 15, 2025 | DESOER BARBARA J | Grant | 349 | 0.00 | $ 0.00 | 
| Mar 15, 2025 | Schoppert Wendy Lee | Grant | 349 | 0.00 | $ 0.00 | 
| Mar 15, 2025 | Maughan David Paul | Grant | 5228 | 0.00 | $ 0.00 | 
| Mar 15, 2025 | Maughan David Paul | Option Excercise | 9333 | 143.45 | $ 1,338,818.85 | 
| Mar 15, 2025 | ACKERMAN JOEL | Grant | 5995 | 0.00 | $ 0.00 | 
| Mar 15, 2025 | ACKERMAN JOEL | Option Excercise | 6424 | 143.45 | $ 921,522.80 | 
| Mar 15, 2025 | Schechter Adam H | Grant | 349 | 0.00 | $ 0.00 | 
| Mar 12, 2025 | ACKERMAN JOEL | Grant | 14615 | 0.00 | $ 0.00 | 
| Mar 12, 2025 | HEARTY JAMES O | Grant | 3896 | 0.00 | $ 0.00 | 
| Mar 12, 2025 | Waters Kathleen Alyce | Grant | 10718 | 0.00 | $ 0.00 | 
| Feb 14, 2025 | BUFFETT WARREN E | Open Market Sale | 750000 | 154.74 | $ 116,055,616.32 | 
| Feb 14, 2025 | BERKSHIRE HATHAWAY INC | Open Market Sale | 750000 | 154.74 | $ 116,055,616.32 | 
| Feb 11, 2025 | BERKSHIRE HATHAWAY INC | Open Market Sale | 203091 | 156.01 | $ 31,684,430.00 | 
| Feb 11, 2025 | BUFFETT WARREN E | Open Market Sale | 203091 | 156.01 | $ 31,684,430.00 | 
| Dec 2, 2024 | YALE PHYLLIS R | Other Disposition | 3500 | 0.00 | $ 0.00 | 
| Nov 27, 2024 | Waters Kathleen Alyce | Option Excercise | 8078 | 108.93 | $ 879,936.54 | 
| Nov 27, 2024 | Waters Kathleen Alyce | Other Disposition | 5239 | 167.96 | $ 879,942.44 | 
| Nov 27, 2024 | Waters Kathleen Alyce | Option Excercise | 1439 | 167.96 | $ 241,694.44 | 
| Nov 15, 2024 | Moore Gregory J. | Grant | 312 | 0.00 | $ 0.00 | 
| Nov 15, 2024 | Hollar Jason M. | Grant | 312 | 0.00 | $ 0.00 | 
| Nov 15, 2024 | DESOER BARBARA J | Grant | 312 | 0.00 | $ 0.00 | 
| Nov 15, 2024 | BERG CHARLES | Grant | 312 | 0.00 | $ 0.00 | 
| Nov 15, 2024 | Pullin Dennis W | Grant | 312 | 0.00 | $ 0.00 | 
| Nov 15, 2024 | Rodriguez Javier | Grant | 37423 | 0.00 | $ 0.00 | 
| Nov 15, 2024 | Schoppert Wendy Lee | Grant | 312 | 0.00 | $ 0.00 | 
| Nov 15, 2024 | YALE PHYLLIS R | Grant | 312 | 0.00 | $ 0.00 | 
| Nov 15, 2024 | Arway Pamela M | Grant | 312 | 0.00 | $ 0.00 | 
| Nov 15, 2024 | Schechter Adam H | Grant | 312 | 0.00 | $ 0.00 |