CECO - CIK 0000003197
CECO ENVIRONMENTAL CORP has filed 1,283 documents with the SEC between 1995 and 2026. The most frequent type is insider trade (463 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 |
|---|---|---|---|
| 425 | - | 2026-05-19 | - |
| SCHEDULE 13G | - | 2026-05-15 | - |
| Insider trade | 4 | 2026-05-04 | 2026-05-01 |
| Insider sale notice | 144 | 2026-05-01 | - |
| Insider trade | 4 | 2026-05-01 | 2026-04-29 |
| Quarterly report | 10-Q | 2026-04-30 | 2026-03-31 |
| Major company event | 8-K | 2026-04-28 | 2026-04-28 |
| Annual report to shareholders | ARS | 2026-04-24 | 2025-12-31 |
| 424B3 | - | 2026-04-23 | - |
| EFFECT | - | 2026-04-22 | - |
| Company correspondence | CORRESP | 2026-04-21 | - |
| S-4/A | - | 2026-04-21 | - |
| SEC correspondence | UPLOAD | 2026-04-15 | - |
| S-4 | - | 2026-04-08 | - |
| Insider trade | 4 | 2026-04-02 | 2026-03-31 |
| Insider trade | 4 | 2026-04-02 | 2026-03-31 |
| Insider trade | 4 | 2026-04-02 | 2026-03-31 |
| Major company event | 8-K | 2026-04-02 | 2026-03-30 |
| 425 | - | 2026-03-24 | - |
| 425 | - | 2026-03-23 | - |
| Insider trade | 4 | 2026-03-17 | 2026-03-15 |
| Insider trade | 4 | 2026-03-17 | 2026-03-15 |
| Insider trade | 4 | 2026-03-17 | 2026-03-15 |
| Insider trade | 4 | 2026-03-17 | 2026-03-15 |
| 425 | - | 2026-03-12 | - |
| Insider trade | 4 | 2026-03-09 | 2026-03-07 |
| Insider trade | 4 | 2026-03-09 | 2026-03-07 |
| Annual report | 10-K | 2026-03-02 | 2025-12-31 |
| 425 | - | 2026-03-02 | - |
| 425 | - | 2026-02-27 | - |
| SCHEDULE 13D/A | - | 2026-02-26 | - |
| 425 | - | 2026-02-26 | - |
| 425 | - | 2026-02-25 | - |
| Major company event | 8-K | 2026-02-24 | 2026-02-24 |
| 425 | - | 2026-02-24 | - |
| 425 | - | 2026-02-24 | - |
| Major company event | 8-K | 2026-02-24 | 2026-02-23 |
| SCHEDULE 13G | - | 2026-02-13 | - |
| Major company event | 8-K | 2026-02-04 | 2026-01-30 |
| SCHEDULE 13G/A | - | 2026-01-30 | - |
| Insider trade | 4 | 2026-01-16 | 2026-01-15 |
| New insider ownership | 3 | 2026-01-16 | 2026-01-01 |
| New insider ownership | 3 | 2026-01-12 | 2026-01-01 |
| SCHEDULE 13G/A | - | 2025-11-14 | - |
| SCHEDULE 13G/A | - | 2025-11-13 | - |
| SCHEDULE 13G | - | 2025-10-30 | - |
| Quarterly report | 10-Q | 2025-10-28 | 2025-09-30 |
| Major company event | 8-K | 2025-10-28 | 2025-10-28 |
| S-3ASR | - | 2025-10-28 | - |
| Insider sale notice | 144 | 2025-09-22 | - |