Updated Jul 16, 2026 · Last SEC filing 2026-07-07
CECO ENVIRONMENTAL CORP (CECO) has filed 16 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-07. 4 Form 8-K material event filings were reported by CECO in the last 90 days. 2 Form 144 notices of proposed sale were filed for CECO stock. InsiderAlpha tracks every CECO SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0000003197 |
|---|
| Form 4 filings (90d) | 16 |
|---|---|
| Form 8-K filings (90d) | 4 |
| Form 144 notices (90d) | 2 |
| Latest Form 4 filing | 2026-07-07 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Kovachev Kiril | Chief Accounting Officer | F — Tax withholding / forfeiture | 460 | $82.15 | $38K | SEC | |
| DEZWIREK JASON | Insider | S — Open-market sale | 34.0K | $97.28 | $3.31M | SEC | |
| DEZWIREK JASON | Insider | S — Open-market sale | 34.0K | $96.61 | $3.28M | SEC | |
| Johansson Peter K. | SVP, Chief Financial Officer | S — Open-market sale | 30.0K | $96.49 | $2.89M | SEC | |
| Harris-Peterson Candace | Chief Human Resources Officer | A — Grant or award | 3.1K | $0.00 | — | SEC | |
| Harris-Peterson Candace | Chief Human Resources Officer | A — Grant or award | 1.4K | — | — | SEC | |
| Harris-Peterson Candace | Chief Human Resources Officer | A — Grant or award | 4.7K | — | — | SEC | |
| GEORGE MARCUS J | Insider | A — Grant or award | 2.2K | $0.00 | — | SEC | |
| GEORGE MARCUS J | Insider | A — Grant or award | 36.7K | — | — | SEC | |
| DEZWIREK JASON | Insider | A — Grant or award | 2.2K | $0.00 | — | SEC | |
| Mannarino Claudio A | Insider | A — Grant or award | 1.1K | $0.00 | — | SEC | |
| Harris-Peterson Candace | Chief Human Resources Officer | A — Grant or award | 2.7K | — | — | SEC | |
| Harris-Peterson Candace | Chief Human Resources Officer | A — Grant or award | 3.1K | — | — | SEC | |
| RICHEY VICTOR L JR | Insider | A — Grant or award | 6.4K | — | — | SEC | |
| KNOWLING ROBERT E JR | Insider | A — Grant or award | 2.2K | $0.00 | — | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for CECO ENVIRONMENTAL CORP (CECO). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Harris-Peterson Candace | 7 | — |
| WALLMAN RICHARD F | 4 | $2.64M |
| DEZWIREK JASON | 3 | $6.59M |
| GEORGE MARCUS J | 2 | — |
| Mannarino Claudio A | 2 | — |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in CECO insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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