CSGP - CIK 0001057352
COSTAR GROUP, INC. has filed 1,514 documents with the SEC between 1998 and 2026. The most frequent type is insider trade (773 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 (amended) | 4/A | 2016-05-02 | 2016-03-11 |
| New insider ownership | 3 | 2016-04-28 | 2016-04-22 |
| Quarterly report | 10-Q | 2016-04-28 | 2016-03-31 |
| Major company event | 8-K | 2016-04-27 | 2016-04-27 |
| Proxy materials | DEFA14A | 2016-04-26 | - |
| Proxy statement | DEF 14A | 2016-04-26 | 2016-06-09 |
| Insider trade | 4 | 2016-03-15 | 2016-03-11 |
| Insider trade | 4 | 2016-03-15 | 2016-03-11 |
| Insider trade | 4 | 2016-03-15 | 2016-03-11 |
| Insider trade | 4 | 2016-03-08 | 2016-03-05 |
| Insider trade | 4 | 2016-03-08 | 2016-03-05 |
| Insider trade | 4 | 2016-03-08 | 2016-03-05 |
| Insider trade | 4 | 2016-03-01 | 2016-02-28 |
| Insider trade | 4 | 2016-03-01 | 2016-02-28 |
| Annual report | 10-K | 2016-02-26 | 2015-12-31 |
| Major company event | 8-K | 2016-02-24 | 2016-02-24 |
| Passive ownership stake (update) | SC 13G/A | 2016-02-16 | - |
| Passive ownership stake | SC 13G | 2016-02-16 | - |
| Passive ownership stake | SC 13G | 2016-02-11 | - |
| Passive ownership stake (update) | SC 13G/A | 2016-02-11 | - |
| Passive ownership stake (update) | SC 13G/A | 2016-02-10 | - |
| Passive ownership stake | SC 13G | 2016-02-01 | - |
| Passive ownership stake | SC 13G | 2016-01-29 | - |
| Insider trade | 4 | 2016-01-12 | 2016-01-11 |
| New insider ownership | 3 | 2016-01-12 | 2016-01-11 |
| Insider trade | 4 | 2015-12-09 | 2015-12-09 |
| Insider trade | 4 | 2015-12-09 | 2015-12-07 |
| Major company event | 8-K | 2015-11-19 | 2015-11-19 |
| Insider trade | 4 | 2015-11-16 | 2015-11-13 |
| Insider trade | 4 | 2015-11-12 | 2015-11-11 |
| Quarterly report | 10-Q | 2015-10-29 | 2015-09-30 |
| Major company event | 8-K | 2015-10-28 | 2015-10-28 |
| SEC correspondence | UPLOAD | 2015-09-30 | - |
| Insider trade | 4 | 2015-09-15 | 2015-09-11 |
| Employee stock plan | S-8 | 2015-09-14 | - |
| Insider trade | 4 | 2015-09-11 | 2015-09-09 |
| Insider trade | 4 | 2015-09-11 | 2015-09-09 |
| Insider trade | 4 | 2015-09-11 | 2015-09-09 |
| Insider trade | 4 | 2015-09-11 | 2015-09-09 |
| Insider trade | 4 | 2015-09-11 | 2015-09-09 |
| Insider trade | 4 | 2015-09-11 | 2015-09-09 |
| New insider ownership | 3 | 2015-08-11 | 2015-08-03 |
| Quarterly report | 10-Q | 2015-07-30 | 2015-06-30 |
| Major company event | 8-K | 2015-07-30 | 2015-07-30 |
| Major company event | 8-K | 2015-07-29 | 2015-07-29 |
| Company correspondence | CORRESP | 2015-07-16 | - |
| SEC correspondence | UPLOAD | 2015-07-02 | - |
| Insider trade | 4 | 2015-06-16 | 2015-06-15 |
| Annual report to shareholders | ARS | 2015-06-12 | 2014-12-31 |
| Major company event | 8-K | 2015-06-05 | 2015-06-05 |