The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
| Date | Insider | Role | Action | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 16, 2026 | Rodriguez Javier | Chief Executive Officer, Director | Sell(S) | 39K | $209.28 | $8.2M |
| Jun 15, 2026 | Rodriguez Javier | Chief Executive Officer, Director | Sell(S) | 30K | $209.50 | $6.3M |
| Jun 15, 2026 | Waters Kathleen Alyce | Chief Legal & Pub. Affairs Off | Sell(S) | 9K | $207.84 | $1.9M |
| Jun 15, 2026 | Waters Kathleen Alyce | Chief Legal & Pub. Affairs Off | Sell(S) | 6K | $209.17 | $1.4M |
| May 26, 2026 | Yale Phyllis R | Director | Gift(G) | 5K | — | $0 |
| May 15, 2026 | Pullin Dennis W | Director | Grant(A) | 250 | — | $0 |
| May 15, 2026 | Moore Gregory J. | Director | Grant(A) | 250 | — | $0 |
| May 15, 2026 | Schoppert Wendy Lee | Director | Grant(A) | 250 | — | $0 |
| May 15, 2026 | Arway Pamela M | Director | Grant(A) | 250 | — | $0 |
| May 15, 2026 | Hearty James O | Chief Compliance Officer | Sell(S) | 15K | $193.98 | $2.9M |
| May 15, 2026 | Hollar Jason M. | Director | Grant(A) | 250 | — | $0 |
| May 15, 2026 | Schechter Adam H | Director | Grant(A) | 250 | — | $0 |
| May 15, 2026 | Desoer Barbara J | Director | Grant(A) | 250 | — | $0 |
| May 15, 2026 | Yale Phyllis R | Director | Grant(A) | 250 | — | $0 |
| May 14, 2026 | Hearty James O | Chief Compliance Officer | Option exercise(M) | 6K | $110.63 | $640K |
| May 14, 2026 | Hearty James O | Chief Compliance Officer | Disposed to issuer(D) | 3K | $198.10 | $640K |
| May 14, 2026 | Hearty James O | Chief Compliance Officer | Tax withholding(F) | 1K | $198.10 | $221K |
| May 14, 2026 | Hearty James O | Chief Compliance Officer | Option exercise(M) | 6K | — | $0 |
| May 12, 2026 | Maughan David Paul | Chief Operating Officer, DKC | Sell(S) | 13K | $199.25 | $2.7M |
| May 11, 2026 | Maughan David Paul | Chief Operating Officer, DKC | Sell(S) | 7K | $199.15 | $1.4M |
| May 7, 2026 | Ackerman Joel | CFO and Treasurer | Sell(S) | 51K | $192.10 | $9.9M |
| May 6, 2026 | Hearty James O | Chief Compliance Officer | Sell(S) | 2K | $174.87 | $382K |
| May 1, 2026 | Berkshire Hathaway Inc | 10% Owner | Sell(S) | 1.2M | $149.84 | $182.9M |
| Mar 15, 2026 | Schoppert Wendy Lee | Director | Grant(A) | 332 | — | $0 |
| Mar 15, 2026 | Hearty James O | Chief Compliance Officer | Tax withholding(F) | 2K | $150.72 | $230K |
| Mar 15, 2026 | Hearty James O | Chief Compliance Officer | Tax withholding(F) | 769 | $150.72 | $116K |
| Mar 15, 2026 | Hearty James O | Chief Compliance Officer | Grant(A) | 1K | — | $0 |
| Mar 15, 2026 | Hearty James O | Chief Compliance Officer | Tax withholding(F) | 300 | $150.72 | $45K |
| Mar 15, 2026 | Hearty James O | Chief Compliance Officer | Tax withholding(F) | 9K | $150.72 | $1.4M |
| Mar 15, 2026 | Hearty James O | Chief Compliance Officer | Grant(A) | 3K | — | $0 |
| Mar 15, 2026 | Waters Kathleen Alyce | Chief Legal & Pub. Affairs Off | Tax withholding(F) | 26K | $150.72 | $3.9M |
| Mar 15, 2026 | Waters Kathleen Alyce | Chief Legal & Pub. Affairs Off | Tax withholding(F) | 4K | $150.72 | $655K |
| Mar 15, 2026 | Waters Kathleen Alyce | Chief Legal & Pub. Affairs Off | Tax withholding(F) | 2K | $150.72 | $370K |
| Mar 15, 2026 | Waters Kathleen Alyce | Chief Legal & Pub. Affairs Off | Tax withholding(F) | 940 | $150.72 | $142K |
| Mar 15, 2026 | Waters Kathleen Alyce | Chief Legal & Pub. Affairs Off | Grant(A) | 3K | — | $0 |
| Mar 15, 2026 | Waters Kathleen Alyce | Chief Legal & Pub. Affairs Off | Grant(A) | 9K | — | $0 |
| Mar 15, 2026 | Moore Gregory J. | Director | Grant(A) | 332 | — | $0 |
| Mar 15, 2026 | Schechter Adam H | Director | Grant(A) | 332 | — | $0 |
| Mar 15, 2026 | Ackerman Joel | CFO and Treasurer | Tax withholding(F) | 6K | $150.72 | $869K |
| Mar 15, 2026 | Ackerman Joel | CFO and Treasurer | Tax withholding(F) | 34K | $150.72 | $5.1M |
| Mar 15, 2026 | Ackerman Joel | CFO and Treasurer | Grant(A) | 6K | — | $0 |
| Mar 15, 2026 | Ackerman Joel | CFO and Treasurer | Tax withholding(F) | 3K | $150.72 | $507K |
| Mar 15, 2026 | Ackerman Joel | CFO and Treasurer | Grant(A) | 15K | — | $0 |
| Mar 15, 2026 | Berry Christopher Michael | Chief Accounting Officer | Grant(A) | 4K | — | $0 |
| Mar 15, 2026 | Hollar Jason M. | Director | Grant(A) | 332 | — | $0 |
| Mar 15, 2026 | Pullin Dennis W | Director | Grant(A) | 332 | — | $0 |
| Mar 15, 2026 | Rodriguez Javier | Chief Executive Officer, Director | Grant(A) | 21K | — | $0 |
| Mar 15, 2026 | Rodriguez Javier | Chief Executive Officer, Director | Grant(A) | 57K | — | $0 |
| Mar 15, 2026 | Yale Phyllis R | Director | Grant(A) | 332 | — | $0 |
| Mar 15, 2026 | Maughan David Paul | Chief Operating Officer, DKC | Tax withholding(F) | 8K | $150.72 | $1.2M |
| Mar 15, 2026 | Maughan David Paul | Chief Operating Officer, DKC | Tax withholding(F) | 5K | $150.72 | $805K |
| Mar 15, 2026 | Maughan David Paul | Chief Operating Officer, DKC | Grant(A) | 5K | — | $0 |
| Mar 15, 2026 | Maughan David Paul | Chief Operating Officer, DKC | Grant(A) | 14K | — | $0 |
| Mar 15, 2026 | Desoer Barbara J | Director | Grant(A) | 332 | — | $0 |
| Mar 15, 2026 | Arway Pamela M | Director | Grant(A) | 332 | — | $0 |
| Mar 10, 2026 | Waters Kathleen Alyce | Chief Legal & Pub. Affairs Off | Grant(A) | 51K | — | $0 |
| Mar 10, 2026 | Waters Kathleen Alyce | Chief Legal & Pub. Affairs Off | Grant(A) | 5K | — | $0 |
| Mar 10, 2026 | Ackerman Joel | CFO and Treasurer | Grant(A) | 66K | — | $0 |
| Mar 10, 2026 | Ackerman Joel | CFO and Treasurer | Grant(A) | 7K | — | $0 |
| Mar 10, 2026 | Hearty James O | Chief Compliance Officer | Grant(A) | 21K | — | $0 |
| Mar 10, 2026 | Hearty James O | Chief Compliance Officer | Grant(A) | 2K | — | $0 |
| Feb 6, 2026 | Ackerman Joel | CFO and Treasuer | Disposed to issuer(D) | 32K | $149.22 | $4.8M |
| Feb 6, 2026 | Ackerman Joel | CFO and Treasuer | Option exercise(M) | 44K | $108.93 | $4.8M |
| Feb 6, 2026 | Ackerman Joel | CFO and Treasuer | Tax withholding(F) | 5K | $149.22 | $761K |
| Feb 6, 2026 | Ackerman Joel | CFO and Treasuer | Option exercise(M) | 44K | — | $0 |
| Feb 6, 2026 | Waters Kathleen Alyce | Chief Legal & Pub. Affairs Off | Disposed to issuer(D) | 6K | $149.22 | $880K |
| Feb 6, 2026 | Waters Kathleen Alyce | Chief Legal & Pub. Affairs Off | Option exercise(M) | 8K | $108.93 | $880K |
| Feb 6, 2026 | Waters Kathleen Alyce | Chief Legal & Pub. Affairs Off | Tax withholding(F) | 817 | $149.22 | $122K |
| Feb 6, 2026 | Waters Kathleen Alyce | Chief Legal & Pub. Affairs Off | Option exercise(M) | 8K | — | $0 |
| Jan 29, 2026 | Buffett Warren E | 10% Owner | Sell(S) | 1.7M | $120.56 | $199.9M |
| Dec 4, 2025 | Hearty James O | Chief Compliance Officer | Option exercise(M) | 6K | $108.93 | $640K |
| Dec 4, 2025 | Hearty James O | Chief Compliance Officer | Disposed to issuer(D) | 5K | $118.25 | $640K |
| Dec 4, 2025 | Hearty James O | Chief Compliance Officer | Tax withholding(F) | 203 | $118.25 | $24K |
| Dec 4, 2025 | Hearty James O | Chief Compliance Officer | Option exercise(M) | 6K | — | $0 |
| Nov 15, 2025 | Rodriguez Javier | Chief Executive Officer, Director | Tax withholding(F) | 5K | $121.55 | $628K |
| Nov 15, 2025 | Arway Pamela M | Director | Grant(A) | 411 | — | $0 |
| Nov 15, 2025 | Desoer Barbara J | Director | Grant(A) | 411 | — | $0 |
| Nov 15, 2025 | Hollar Jason M. | Director | Grant(A) | 411 | — | $0 |
| Nov 15, 2025 | Moore Gregory J. | Director | Grant(A) | 411 | — | $0 |
| Nov 15, 2025 | Pullin Dennis W | Director | Grant(A) | 411 | — | $0 |
| Nov 15, 2025 | Schechter Adam H | Director | Grant(A) | 411 | — | $0 |
| Nov 15, 2025 | Schoppert Wendy Lee | Director | Grant(A) | 411 | — | $0 |
| Nov 15, 2025 | Yale Phyllis R | Director | Grant(A) | 411 | — | $0 |
| Oct 27, 2025 | Berkshire Hathaway Inc | 10% Owner | Sell(S) | 402K | $135.36 | $54.3M |
| Sep 22, 2025 | Maughan David Paul | Chief Operating Officer, DKC | Tax withholding(F) | 8K | $130.16 | $976K |
| Aug 15, 2025 | Pullin Dennis W | Director | Grant(A) | 369 | — | $0 |
| Aug 15, 2025 | Schoppert Wendy Lee | Director | Grant(A) | 369 | — | $0 |
| Aug 15, 2025 | Arway Pamela M | Director | Grant(A) | 369 | — | $0 |
| Aug 15, 2025 | Moore Gregory J. | Director | Grant(A) | 369 | — | $0 |
| Aug 15, 2025 | Hollar Jason M. | Director | Grant(A) | 369 | — | $0 |
| Aug 15, 2025 | Desoer Barbara J | Director | Grant(A) | 369 | — | $0 |
| Aug 15, 2025 | Yale Phyllis R | Director | Grant(A) | 369 | — | $0 |
| Aug 15, 2025 | Schechter Adam H | Director | Grant(A) | 369 | — | $0 |
| Jul 31, 2025 | Berkshire Hathaway Inc | 10% Owner | Sell(S) | 1.6M | $140.61 | $230.0M |
| Jul 23, 2025 | Hearty James O | Chief Compliance Officer | Sell(S) | 2K | $150.00 | $353K |
| May 27, 2025 | Buffett Warren E | 10% Owner | Sell(S) | 12K | $140.18 | $1.7M |
| May 27, 2025 | Buffett Warren E | 10% Owner | Sell(S) | 19K | $138.59 | $2.7M |
| May 27, 2025 | Buffett Warren E | 10% Owner | Sell(S) | 72K | $139.56 | $10.0M |
| May 23, 2025 | Buffett Warren E | 10% Owner | Sell(S) | 27K | $137.28 | $3.7M |
| May 23, 2025 | Buffett Warren E | 10% Owner | Sell(S) | 36K | $138.19 | $5.0M |
Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.
Coverage: Form 4 filings indexed 2021-03-29 → 2026-07-14. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).