NEU - CIK 0001282637
NEWMARKET CORP has filed 1,091 documents with the SEC between 2004 and 2026. The most frequent type is insider trade (382 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 | 2021-10-28 | 2021-10-28 |
| Quarterly report | 10-Q | 2021-10-26 | 2021-09-30 |
| Major company event | 8-K | 2021-10-25 | 2021-10-25 |
| Insider trade | 4 | 2021-08-27 | 2021-08-27 |
| Major company event | 8-K | 2021-08-05 | 2021-08-05 |
| Quarterly report | 10-Q | 2021-07-29 | 2021-06-30 |
| Major company event | 8-K | 2021-07-28 | 2021-07-28 |
| Insider trade | 4 | 2021-07-01 | 2021-07-01 |
| Insider trade | 4 | 2021-07-01 | 2021-07-01 |
| Insider trade | 4 | 2021-07-01 | 2021-07-01 |
| Insider trade | 4 | 2021-07-01 | 2021-07-01 |
| Insider trade | 4 | 2021-07-01 | 2021-07-01 |
| Employee plan annual report | 11-K | 2021-06-02 | 2020-12-31 |
| Major company event | 8-K | 2021-04-23 | 2021-04-22 |
| Quarterly report | 10-Q | 2021-04-22 | 2021-03-31 |
| Major company event | 8-K | 2021-04-22 | 2021-04-22 |
| Major company event | 8-K | 2021-04-21 | 2021-04-21 |
| Major company event | 8-K | 2021-03-18 | 2021-03-18 |
| Proxy materials | DEFA14A | 2021-03-11 | - |
| Proxy statement | DEF 14A | 2021-03-11 | 2021-04-22 |
| Prospectus supplement | 424B5 | 2021-03-05 | - |
| Free writing prospectus | FWP | 2021-03-04 | - |
| Prospectus supplement | 424B5 | 2021-03-04 | - |
| S-3ASR | - | 2021-03-02 | - |
| Major company event | 8-K | 2021-02-25 | 2021-02-25 |
| Passive ownership stake (update) | SC 13G/A | 2021-02-16 | - |
| Annual report | 10-K | 2021-02-16 | 2020-12-31 |
| Passive ownership stake (update) | SC 13G/A | 2021-02-12 | - |
| Annual insider summary | 5 | 2021-02-10 | 2020-12-31 |
| Annual insider summary | 5 | 2021-02-10 | 2020-12-31 |
| Passive ownership stake (update) | SC 13G/A | 2021-02-10 | - |
| Passive ownership stake (update) | SC 13G/A | 2021-02-08 | - |
| Major company event | 8-K | 2021-02-03 | 2021-02-03 |
| Passive ownership stake (update) | SC 13G/A | 2021-01-29 | - |
| Insider trade | 4 | 2021-01-27 | 2021-01-26 |
| Insider trade | 4 | 2021-01-27 | 2021-01-26 |
| Insider trade | 4 | 2020-12-22 | 2020-12-18 |
| Quarterly report | 10-Q | 2020-10-29 | 2020-09-30 |
| Major company event | 8-K | 2020-10-28 | 2020-10-28 |
| Major company event | 8-K | 2020-10-22 | 2020-10-22 |
| Major company event | 8-K | 2020-08-06 | 2020-08-06 |
| Quarterly report | 10-Q | 2020-07-30 | 2020-06-30 |
| Major company event | 8-K | 2020-07-30 | 2020-07-29 |
| Insider trade | 4 | 2020-07-17 | 2020-07-16 |
| New insider ownership | 3 | 2020-07-17 | 2020-07-16 |
| Major company event | 8-K | 2020-07-17 | 2020-07-16 |
| Insider trade | 4 | 2020-07-01 | 2020-07-01 |
| Insider trade | 4 | 2020-07-01 | 2020-07-01 |
| Insider trade | 4 | 2020-07-01 | 2020-07-01 |
| Insider trade | 4 | 2020-07-01 | 2020-07-01 |