BRK-B
Berkshire Hathaway has filed 995 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 |
|---|---|---|---|
| Major company event | 8-K | 2021-04-15 | 2021-04-15 |
| Insider trade | 4 | 2021-04-12 | 2021-04-07 |
| Passive ownership stake (update) | SC 13G/A | 2021-04-12 | - |
| Shareholder proxy notice | PX14A6G | 2021-04-09 | - |
| Prospectus supplement | 424B5 | 2021-04-09 | - |
| Free writing prospectus | FWP | 2021-04-08 | - |
| Prospectus supplement | 424B5 | 2021-03-29 | - |
| Shareholder proxy notice | PX14A6G | 2021-03-24 | - |
| Shareholder proxy notice | PX14A6G | 2021-03-22 | - |
| Proxy statement | DEF 14A | 2021-03-15 | 2021-05-01 |
| Annual report | 10-K | 2021-03-01 | 2020-12-31 |
| Major company event | 8-K | 2021-03-01 | 2021-02-27 |
| Passive ownership stake (update) | SC 13G/A | 2021-02-16 | - |
| Passive ownership stake (update) | SC 13G/A | 2021-02-16 | - |
| Passive ownership stake (update) | SC 13G/A | 2021-02-16 | - |
| Passive ownership stake (update) | SC 13G/A | 2021-02-16 | - |
| Passive ownership stake (update) | SC 13G/A | 2021-02-16 | - |
| Passive ownership stake (update) | SC 13G/A | 2021-02-16 | - |
| Passive ownership stake (update) | SC 13G/A | 2021-02-16 | - |
| Passive ownership stake (update) | SC 13G/A | 2021-02-16 | - |
| Passive ownership stake (update) | SC 13G/A | 2021-02-16 | - |
| Passive ownership stake (update) | SC 13G/A | 2021-02-16 | - |
| Passive ownership stake (update) | SC 13G/A | 2021-02-16 | - |
| Passive ownership stake (update) | SC 13G/A | 2021-02-16 | - |
| Passive ownership stake | SC 13G | 2021-02-16 | - |
| Activist ownership stake (update) | SC 13D/A | 2021-02-16 | - |
| Institutional holdings | 13F-HR | 2021-02-16 | 2020-12-31 |
| 13F-HR/A | - | 2021-02-16 | 2020-09-30 |
| Passive ownership stake | SC 13G | 2021-02-12 | - |
| Passive ownership stake (update) | SC 13G/A | 2021-02-10 | - |
| 8-A12B | - | 2021-02-08 | - |
| Exchange certification | CERT | 2021-02-08 | - |
| Insider trade | 4 | 2021-02-05 | 2021-02-04 |
| Passive ownership stake (update) | SC 13G/A | 2021-01-29 | - |
| Delisting notice | 25-NSE | 2021-01-19 | - |
| New insider ownership | 3 | 2021-01-15 | 2021-01-07 |
| Passive ownership stake | SC 13G | 2021-01-15 | - |
| Major company event | 8-K | 2021-01-15 | 2021-01-15 |
| Prospectus supplement | 424B5 | 2021-01-07 | - |
| Prospectus supplement | 424B5 | 2021-01-07 | - |
| Insider trade | 4 | 2021-01-06 | 2020-12-18 |
| Free writing prospectus | FWP | 2021-01-06 | - |
| Free writing prospectus | FWP | 2021-01-05 | - |
| Prospectus supplement | 424B5 | 2021-01-05 | - |
| Prospectus supplement | 424B5 | 2021-01-05 | - |
| Insider trade | 4 | 2020-12-28 | 2020-12-22 |
| Insider trade | 4 | 2020-12-21 | 2020-12-02 |
| Insider trade | 4 | 2020-12-04 | 2020-12-02 |
| Insider trade (amended) | 4/A | 2020-12-04 | 2020-07-28 |
| Institutional holdings | 13F-HR | 2020-11-16 | 2020-09-30 |