BRK-B
Berkshire Hathaway has filed 997 documents with the SEC between 2016 and 2026. The most frequent type is insider trade (274 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 |
|---|---|---|---|
| Employee plan annual report | 11-K | 2019-06-18 | 2018-12-31 |
| Employee plan annual report | 11-K | 2019-06-17 | 2018-12-31 |
| Prospectus supplement | 424B2 | 2019-06-13 | - |
| Free writing prospectus | FWP | 2019-06-12 | - |
| Prospectus supplement | 424B2 | 2019-06-12 | - |
| Insider trade | 4 | 2019-06-06 | 2019-06-03 |
| Company correspondence | CORRESP | 2019-06-04 | - |
| SD | - | 2019-05-31 | - |
| Institutional holdings | 13F-HR | 2019-05-15 | 2019-03-31 |
| Company correspondence | CORRESP | 2019-05-10 | - |
| SEC correspondence | UPLOAD | 2019-05-09 | - |
| Major company event | 8-K | 2019-05-07 | 2019-05-04 |
| Quarterly report | 10-Q | 2019-05-06 | 2019-03-31 |
| Insider trade | 4 | 2019-04-10 | 2019-04-08 |
| Insider trade | 4 | 2019-03-15 | 2019-03-06 |
| Proxy statement | DEF 14A | 2019-03-15 | 2019-05-04 |
| Major company event | 8-K | 2019-03-15 | 2019-03-15 |
| Insider trade | 4 | 2019-03-13 | 2019-03-11 |
| Insider trade | 4 | 2019-03-08 | 2019-03-06 |
| New insider ownership | 3 | 2019-03-08 | 2019-03-05 |
| Prospectus supplement | 424B2 | 2019-03-08 | - |
| Free writing prospectus | FWP | 2019-03-06 | - |
| Prospectus supplement | 424B2 | 2019-03-06 | - |
| Major company event | 8-K | 2019-02-25 | 2019-02-23 |
| Annual report | 10-K | 2019-02-25 | 2018-12-31 |
| Annual insider summary | 5 | 2019-02-14 | 2018-12-31 |
| Passive ownership stake | SC 13G | 2019-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 2019-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 2019-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 2019-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 2019-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 2019-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 2019-02-14 | - |
| Passive ownership stake | SC 13G | 2019-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 2019-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 2019-02-14 | - |
| Passive ownership stake | SC 13G | 2019-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 2019-02-14 | - |
| Institutional holdings | 13F-HR | 2019-02-14 | 2018-12-31 |
| Passive ownership stake | SC 13G | 2019-02-13 | - |
| Passive ownership stake (update) | SC 13G/A | 2019-02-11 | - |
| Annual insider summary | 5 | 2019-02-08 | 2018-12-31 |
| Passive ownership stake (update) | SC 13G/A | 2019-02-08 | - |
| Passive ownership stake (update) | SC 13G/A | 2019-02-04 | - |
| S-3ASR | - | 2019-01-28 | - |
| Annual insider summary | 5 | 2019-01-22 | 2018-12-31 |
| Major company event | 8-K | 2019-01-11 | 2019-01-11 |
| Prospectus supplement | 424B2 | 2019-01-07 | - |
| Free writing prospectus | FWP | 2019-01-03 | - |
| Prospectus supplement | 424B2 | 2019-01-03 | - |