| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| WALLMAN RICHARD F | Director | 5080 SPECTRUM DRIVE, SUITE 800E, ADDISON | /s/ Kiril Kovachev as Attorney-in-Fact for Richard F Wallman | 03 Sep 2025 | 0001198092 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | CECO | Common Stock | Purchase | $132,750 | +3,000 | +1.4% | $44.25 | 219,909 | 29 Aug 2025 | Direct | |
| transaction | CECO | Common Stock | Purchase | $66,375 | +1,500 | +2% | $44.25 | 77,500 | 29 Aug 2025 | By spouse |