Only open-market buys / sells (codes P/S) are a conviction signal; grants, option exercises, tax-withholding, and gifts are compensation mechanics, shown but greyed. The trailing 12-month tallies run to today but the store covers filings through 2026-06-30 only (SEC bulk data sets publish quarterly), so recent activity may be absent.
| Date | Insider | Role | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-16 | Rodriguez Javier | Director,Officer | −Sell | 39,407 | $209.28 | $8M |
| 2026-06-15 | Rodriguez Javier | Director,Officer | −Sell | 30,000 | $209.50 | $6M |
| 2026-06-15 | Waters Kathleen Alyce | Officer | −Sell | 6,455 | $209.17 | $1M |
| 2026-06-15 | Waters Kathleen Alyce | Officer | −Sell | 8,950 | $207.84 | $2M |
| 2026-05-26 | YALE PHYLLIS R | Director | −Gift | 5,038 | — | — |
| 2026-05-15 | HEARTY JAMES O | Officer | −Sell | 15,000 | $193.98 | $3M |
| 2026-05-15 | Hollar Jason M. | Director | +Grant | 250 | — | — |
| 2026-05-15 | Schechter Adam H | Director | +Grant | 250 | — | — |
| 2026-05-15 | DESOER BARBARA J | Director | +Grant | 250 | — | — |
| 2026-05-15 | YALE PHYLLIS R | Director | +Grant | 250 | — | — |
| 2026-05-15 | Arway Pamela M | Director | +Grant | 250 | — | — |
| 2026-05-15 | Schoppert Wendy Lee | Director | +Grant | 250 | — | — |
| 2026-05-15 | Moore Gregory J. | Director | +Grant | 250 | — | — |
| 2026-05-15 | Pullin Dennis W | Director | +Grant | 250 | — | — |
| 2026-05-14 | HEARTY JAMES O | Officer | +Exercise | 5,784 | $110.63 | $639,884 |
| 2026-05-14 | HEARTY JAMES O | Officer | −Tax w/h | 1,117 | $198.10 | $221,278 |
| 2026-05-14 | HEARTY JAMES O | Officer | −Disp→issuer | 3,231 | $198.10 | $640,061 |
| 2026-05-12 | Maughan David Paul | Officer | −Sell | 13,456 | $199.25 | $3M |
| 2026-05-11 | Maughan David Paul | Officer | −Sell | 7,073 | $199.15 | $1M |
| 2026-05-07 | ACKERMAN JOEL | Officer | −Sell | 51,471 | $192.10 | $10M |
| 2026-05-06 | HEARTY JAMES O | Officer | −Sell | 2,184 | $174.87 | $381,916 |
| 2026-05-01 | BERKSHIRE HATHAWAY INC | TenPercentOwner | −Sell | 1,220,376 | $149.84 | $183M |
| 2026-03-15 | Schoppert Wendy Lee | Director | +Grant | 332 | — | — |
| 2026-03-15 | HEARTY JAMES O | Officer | −Tax w/h | 8,984 | $150.72 | $1M |
| 2026-03-15 | HEARTY JAMES O | Officer | −Tax w/h | 300 | $150.72 | $45,216 |
| 2026-03-15 | HEARTY JAMES O | Officer | +Grant | 1,128 | — | — |
| 2026-03-15 | HEARTY JAMES O | Officer | −Tax w/h | 769 | $150.72 | $115,904 |
| 2026-03-15 | HEARTY JAMES O | Officer | −Tax w/h | 1,525 | $150.72 | $229,848 |
| 2026-03-15 | Waters Kathleen Alyce | Officer | +Grant | 3,185 | — | — |
| 2026-03-15 | Waters Kathleen Alyce | Officer | −Tax w/h | 940 | $150.72 | $141,677 |
| 2026-03-15 | Waters Kathleen Alyce | Officer | −Tax w/h | 2,457 | $150.72 | $370,319 |
| 2026-03-15 | Waters Kathleen Alyce | Officer | −Tax w/h | 4,348 | $150.72 | $655,331 |
| 2026-03-15 | Waters Kathleen Alyce | Officer | −Tax w/h | 26,118 | $150.72 | $4M |
| 2026-03-15 | Moore Gregory J. | Director | +Grant | 332 | — | — |
| 2026-03-15 | Schechter Adam H | Director | +Grant | 332 | — | — |
| 2026-03-15 | ACKERMAN JOEL | Officer | −Tax w/h | 3,362 | $150.72 | $506,721 |
| 2026-03-15 | ACKERMAN JOEL | Officer | +Grant | 5,706 | — | — |
| 2026-03-15 | ACKERMAN JOEL | Officer | −Tax w/h | 33,693 | $150.72 | $5M |
| 2026-03-15 | ACKERMAN JOEL | Officer | −Tax w/h | 5,765 | $150.72 | $868,901 |
| 2026-03-15 | BERRY CHRISTOPHER MICHAEL | Officer | +Grant | 3,649 | — | — |
| 2026-03-15 | Hollar Jason M. | Director | +Grant | 332 | — | — |
| 2026-03-15 | Pullin Dennis W | Director | +Grant | 332 | — | — |
| 2026-03-15 | Rodriguez Javier | Director,Officer | +Grant | 20,900 | — | — |
| 2026-03-15 | YALE PHYLLIS R | Director | +Grant | 332 | — | — |
| 2026-03-15 | Maughan David Paul | Officer | +Grant | 5,308 | — | — |
| 2026-03-15 | Maughan David Paul | Officer | −Tax w/h | 5,339 | $150.72 | $804,694 |
| 2026-03-15 | Maughan David Paul | Officer | −Tax w/h | 7,768 | $150.72 | $1M |
| 2026-03-15 | DESOER BARBARA J | Director | +Grant | 332 | — | — |
| 2026-03-15 | Arway Pamela M | Director | +Grant | 332 | — | — |
| 2026-03-10 | Waters Kathleen Alyce | Officer | +Grant | 4,829 | — | — |
| 2026-03-10 | Waters Kathleen Alyce | Officer | +Grant | 51,330 | — | — |
| 2026-03-10 | ACKERMAN JOEL | Officer | +Grant | 6,585 | — | — |
| 2026-03-10 | ACKERMAN JOEL | Officer | +Grant | 65,997 | — | — |
| 2026-03-10 | HEARTY JAMES O | Officer | +Grant | 1,756 | — | — |
| 2026-03-10 | HEARTY JAMES O | Officer | +Grant | 20,533 | — | — |
| 2026-02-06 | ACKERMAN JOEL | Officer | −Tax w/h | 5,100 | $149.22 | $761,022 |
| 2026-02-06 | ACKERMAN JOEL | Officer | +Exercise | 44,065 | $108.93 | $5M |
| 2026-02-06 | ACKERMAN JOEL | Officer | −Disp→issuer | 32,168 | $149.22 | $5M |
| 2026-02-06 | Waters Kathleen Alyce | Officer | −Tax w/h | 817 | $149.22 | $121,913 |
| 2026-02-06 | Waters Kathleen Alyce | Officer | +Exercise | 8,079 | $108.93 | $880,045 |
| 2026-02-06 | Waters Kathleen Alyce | Officer | −Disp→issuer | 5,898 | $149.22 | $880,100 |
| 2026-01-29 | BUFFETT WARREN E | TenPercentOwner | −Sell | 1,658,480 | $120.56 | $200M |
| 2025-12-04 | HEARTY JAMES O | Officer | −Tax w/h | 203 | $118.25 | $24,005 |
| 2025-12-04 | HEARTY JAMES O | Officer | −Disp→issuer | 5,412 | $118.25 | $639,969 |
| 2025-12-04 | HEARTY JAMES O | Officer | +Exercise | 5,875 | $108.93 | $639,964 |
| 2025-11-15 | Rodriguez Javier | Director,Officer | −Tax w/h | 5,165 | $121.55 | $627,806 |
| 2025-11-15 | Arway Pamela M | Director | +Grant | 411 | — | — |
| 2025-11-15 | DESOER BARBARA J | Director | +Grant | 411 | — | — |
| 2025-11-15 | Hollar Jason M. | Director | +Grant | 411 | — | — |
| 2025-11-15 | Moore Gregory J. | Director | +Grant | 411 | — | — |
| 2025-11-15 | Pullin Dennis W | Director | +Grant | 411 | — | — |
| 2025-11-15 | Schechter Adam H | Director | +Grant | 411 | — | — |
| 2025-11-15 | Schoppert Wendy Lee | Director | +Grant | 411 | — | — |
| 2025-11-15 | YALE PHYLLIS R | Director | +Grant | 411 | — | — |
| 2025-10-27 | BERKSHIRE HATHAWAY INC | TenPercentOwner | −Sell | 401,514 | $135.36 | $54M |
| 2025-09-22 | Maughan David Paul | Officer | −Tax w/h | 7,501 | $130.16 | $976,330 |
| 2025-08-15 | Pullin Dennis W | Director | +Grant | 369 | — | — |
| 2025-08-15 | Schoppert Wendy Lee | Director | +Grant | 369 | — | — |
| 2025-08-15 | Arway Pamela M | Director | +Grant | 369 | — | — |
| 2025-08-15 | Moore Gregory J. | Director | +Grant | 369 | — | — |
| 2025-08-15 | Hollar Jason M. | Director | +Grant | 369 | — | — |
| 2025-08-15 | DESOER BARBARA J | Director | +Grant | 369 | — | — |
| 2025-08-15 | YALE PHYLLIS R | Director | +Grant | 369 | — | — |
| 2025-08-15 | Schechter Adam H | Director | +Grant | 369 | — | — |
| 2025-07-31 | BERKSHIRE HATHAWAY INC | TenPercentOwner | −Sell | 1,635,962 | $140.61 | $230M |
| 2025-07-23 | HEARTY JAMES O | Officer | −Sell | 2,351 | $150.00 | $352,650 |
| 2025-05-27 | BUFFETT WARREN E | TenPercentOwner | −Sell | 71,966 | $139.56 | $10M |
| 2025-05-27 | BUFFETT WARREN E | TenPercentOwner | −Sell | 19,330 | $138.59 | $3M |
| 2025-05-27 | BUFFETT WARREN E | TenPercentOwner | −Sell | 11,978 | $140.18 | $2M |
| 2025-05-23 | BUFFETT WARREN E | TenPercentOwner | −Sell | 800 | $138.60 | $110,880 |
| 2025-05-23 | BUFFETT WARREN E | TenPercentOwner | −Sell | 36,094 | $138.19 | $5M |
| 2025-05-23 | BUFFETT WARREN E | TenPercentOwner | −Sell | 27,172 | $137.28 | $4M |
| 2025-05-22 | BUFFETT WARREN E | TenPercentOwner | −Sell | 31,404 | $138.94 | $4M |
| 2025-05-22 | BUFFETT WARREN E | TenPercentOwner | −Sell | 1,256 | $139.88 | $175,689 |
| 2025-05-15 | Schechter Adam H | Director | +Grant | 348 | — | — |
| 2025-05-15 | DESOER BARBARA J | Director | +Grant | 348 | — | — |
| 2025-05-15 | Hollar Jason M. | Director | +Grant | 348 | — | — |
| 2025-05-15 | Arway Pamela M | Director | +Grant | 348 | — | — |
| 2025-05-15 | Pullin Dennis W | Director | +Grant | 348 | — | — |
| 2025-05-15 | Schoppert Wendy Lee | Director | +Grant | 348 | — | — |
| 2025-05-15 | YALE PHYLLIS R | Director | +Grant | 348 | — | — |
| 2025-05-15 | BERG CHARLES | Director | +Grant | 348 | — | — |
| 2025-05-15 | Moore Gregory J. | Director | +Grant | 348 | — | — |
| 2025-05-08 | BERKSHIRE HATHAWAY INC | TenPercentOwner | −Sell | 1,145,938 | $147.11 | $169M |
| 2025-03-15 | Schechter Adam H | Director | +Grant | 349 | — | — |
| 2025-03-15 | ACKERMAN JOEL | Officer | −Tax w/h | 3,331 | $143.45 | $477,832 |
| 2025-03-15 | ACKERMAN JOEL | Officer | −Tax w/h | 3,093 | $143.45 | $443,691 |
| 2025-03-15 | ACKERMAN JOEL | Officer | +Grant | 5,995 | — | — |
| 2025-03-15 | Maughan David Paul | Officer | −Tax w/h | 4,312 | $143.45 | $618,556 |
| 2025-03-15 | Maughan David Paul | Officer | −Tax w/h | 5,021 | $143.45 | $720,262 |
| 2025-03-15 | Maughan David Paul | Officer | +Grant | 5,228 | — | — |
| 2025-03-15 | Schoppert Wendy Lee | Director | +Grant | 349 | — | — |
| 2025-03-15 | DESOER BARBARA J | Director | +Grant | 349 | — | — |
| 2025-03-15 | Waters Kathleen Alyce | Officer | −Tax w/h | 955 | $143.45 | $136,995 |
| 2025-03-15 | Waters Kathleen Alyce | Officer | −Tax w/h | 2,685 | $143.45 | $385,163 |
| 2025-03-15 | Waters Kathleen Alyce | Officer | −Tax w/h | 2,759 | $143.45 | $395,779 |
| 2025-03-15 | Waters Kathleen Alyce | Officer | +Grant | 3,346 | — | — |
| 2025-03-15 | Waters Kathleen Alyce | Officer | −Tax w/h | 939 | $143.45 | $134,700 |
| 2025-03-15 | YALE PHYLLIS R | Director | +Grant | 349 | — | — |
| 2025-03-15 | Arway Pamela M | Director | +Grant | 349 | — | — |
Source: the SEC bulk insider (Form 3/4/5) data sets — non-derivative transactions in the issuer's common stock, most recent first, covering filings through 2026-06-30. Insiders file within 2 business days of a transaction, but the bulk sets publish quarterly, so this store lags live filings; option/derivative lines are excluded. Codes: P buy · S sell · A grant · M/X/C exercise · F tax · G gift.
Model-derived estimate for research. See the Disclaimer.
