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 |
|---|---|---|---|
| Passive ownership stake | SC 13G | 2017-02-14 | - |
| Passive ownership stake | SC 13G | 2017-02-14 | - |
| Passive ownership stake | SC 13G | 2017-02-14 | - |
| Institutional holdings | 13F-HR | 2017-02-14 | 2016-12-31 |
| Passive ownership stake (update) | SC 13G/A | 2017-02-10 | - |
| Passive ownership stake | SC 13G | 2017-02-09 | - |
| Annual insider summary | 5 | 2017-01-20 | 2016-12-31 |
| Passive ownership stake (update) | SC 13G/A | 2017-01-19 | - |
| Major company event | 8-K | 2017-01-17 | 2017-01-17 |
| Activist ownership stake (update) | SC 13D/A | 2017-01-17 | - |
| Employee stock plan | S-8 | 2017-01-13 | - |
| Major company event | 8-K | 2017-01-12 | 2017-01-12 |
| Insider trade (amended) | 4/A | 2017-01-11 | 2016-12-23 |
| Insider trade | 4 | 2017-01-10 | 2016-12-23 |
| Prospectus supplement | 424B2 | 2017-01-06 | - |
| Prospectus supplement | 424B2 | 2017-01-06 | - |
| Free writing prospectus | FWP | 2017-01-05 | - |
| Free writing prospectus | FWP | 2017-01-05 | - |
| Prospectus supplement | 424B2 | 2017-01-05 | - |
| Prospectus supplement | 424B2 | 2017-01-05 | - |
| Institutional holdings | 13F-HR | 2016-11-14 | 2016-09-30 |
| Quarterly report | 10-Q | 2016-11-04 | 2016-09-30 |
| SEC correspondence | UPLOAD | 2016-10-21 | - |
| Company correspondence | CORRESP | 2016-10-06 | - |
| Insider trade | 4 | 2016-09-19 | 2016-09-15 |
| Insider trade | 4 | 2016-09-14 | 2016-09-12 |
| Company correspondence | CORRESP | 2016-09-14 | - |
| SEC correspondence | UPLOAD | 2016-09-09 | - |
| Insider trade | 4 | 2016-09-06 | 2016-09-01 |
| Insider trade | 4 | 2016-08-29 | 2016-08-25 |
| Insider trade | 4 | 2016-08-24 | 2016-08-22 |
| Major company event | 8-K | 2016-08-15 | 2016-08-15 |
| Institutional holdings | 13F-HR | 2016-08-15 | 2016-06-30 |
| Prospectus supplement | 424B2 | 2016-08-10 | - |
| Prospectus supplement | 424B2 | 2016-08-10 | - |
| Free writing prospectus | FWP | 2016-08-09 | - |
| Free writing prospectus | FWP | 2016-08-09 | - |
| Prospectus supplement | 424B2 | 2016-08-08 | - |
| Prospectus supplement | 424B2 | 2016-08-08 | - |
| Quarterly report | 10-Q | 2016-08-05 | 2016-06-30 |
| Insider trade | 4 | 2016-07-14 | 2016-07-13 |
| Activist ownership stake (update) | SC 13D/A | 2016-07-14 | - |