BRK-B
Berkshire Hathaway has filed 992 documents with the SEC between 2016 and 2026. The most frequent type is insider trade (273 filings), alongside the regular cadence of annual reports, quarterly reports, and event disclosures every public company must make. Use the filters to focus on one filing type, or flip the sort to trace the company's history from its earliest paperwork.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.
| Filing | Type | Filed | Period covered |
|---|---|---|---|
| Insider trade | 4 | 2026-05-20 | 2026-05-18 |
| Insider trade | 4 | 2026-05-18 | 2026-05-14 |
| SCHEDULE 13G/A | - | 2026-05-15 | - |
| SCHEDULE 13G | - | 2026-05-15 | - |
| SCHEDULE 13G/A | - | 2026-05-15 | - |
| SCHEDULE 13G/A | - | 2026-05-15 | - |
| SCHEDULE 13G/A | - | 2026-05-15 | - |
| SCHEDULE 13G/A | - | 2026-05-15 | - |
| SCHEDULE 13G | - | 2026-05-15 | - |
| Institutional holdings | 13F-HR | 2026-05-15 | 2026-03-31 |
| Major company event | 8-K | 2026-05-07 | 2026-05-02 |
| Insider trade | 4 | 2026-05-06 | 2026-05-06 |
| Insider trade | 4 | 2026-05-05 | 2026-05-01 |
| New insider ownership | 3 | 2026-05-05 | 2026-05-03 |
| Quarterly report | 10-Q | 2026-05-04 | 2026-03-31 |
| SCHEDULE 13G | - | 2026-04-29 | - |
| Major company event | 8-K | 2026-04-16 | 2026-04-16 |
| Prospectus supplement | 424B5 | 2026-04-14 | - |
| Free writing prospectus | FWP | 2026-04-10 | - |
| Prospectus supplement | 424B5 | 2026-04-02 | - |
| Insider trade | 4 | 2026-03-27 | 2026-03-27 |
| SCHEDULE 13G/A | - | 2026-03-26 | - |
| Insider trade | 4 | 2026-03-19 | 2026-03-17 |
| Annual report to shareholders | ARS | 2026-03-13 | 2025-12-31 |
| Proxy materials | DEFA14A | 2026-03-13 | - |
| Proxy materials | DEFA14A | 2026-03-13 | - |
| Proxy statement | DEF 14A | 2026-03-13 | 2026-05-02 |
| Major company event | 8-K | 2026-03-05 | 2026-03-04 |
| Insider trade | 4 | 2026-03-05 | 2026-03-04 |
| Major company event | 8-K | 2026-03-02 | 2026-02-28 |
| Annual report | 10-K | 2026-03-02 | 2025-12-31 |
| Insider trade | 4 | 2026-02-17 | 2026-01-06 |
| New insider ownership | 3 | 2026-02-17 | 2025-12-15 |
| SCHEDULE 13G | - | 2026-02-17 | - |
| SCHEDULE 13G/A | - | 2026-02-17 | - |
| Institutional holdings | 13F-HR | 2026-02-17 | 2025-12-31 |
| SCHEDULE 13G/A | - | 2026-02-17 | - |
| SCHEDULE 13G/A | - | 2026-02-05 | - |
| Insider trade | 4 | 2026-02-02 | 2026-01-29 |
| Major company event (amended) | 8-K/A | 2026-01-06 | 2025-05-03 |
| S-8 POS | - | 2025-12-23 | - |
| Major company event | 8-K | 2025-12-11 | 2025-12-08 |
| Major company event | 8-K | 2025-11-21 | 2025-11-20 |
| Prospectus supplement | 424B5 | 2025-11-18 | - |
| SCHEDULE 13G/A | - | 2025-11-14 | - |
| SCHEDULE 13G/A | - | 2025-11-14 | - |
| SCHEDULE 13G/A | - | 2025-11-14 | - |
| SCHEDULE 13G/A | - | 2025-11-14 | - |
| SCHEDULE 13G/A | - | 2025-11-14 | - |
| Institutional holdings | 13F-HR | 2025-11-14 | 2025-09-30 |