| Ticker | Owner | Relationship | Date | Transaction | Cost | #Shares | Value ($) | #Shares Total | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| CECO | WALLMAN RICHARD F | Director | Jun 01 '26 | Buy | 76.85 | 20,000 | 1,536,938 | 105,500 | Jun 03 12:00 AM |
| CECO | WALLMAN RICHARD F | Director | Apr 29 '26 | Buy | 73.43 | 15,000 | 1,101,490 | 229,909 | May 01 12:00 AM |
| CECO | WALLMAN RICHARD F | Director | Sep 05 '25 | Buy | 46.93 | 3,000 | 140,800 | 80,500 | Sep 09 12:00 AM |
| CECO | WALLMAN RICHARD F | Director | Aug 29 '25 | Buy | 44.25 | 4,500 | 199,125 | 219,909 | Sep 03 12:00 AM |
| ROP | WALLMAN RICHARD F | Director | Jul 22 '25 | Sale | 556.25 | 352 | 195,800 | 20,510 | Jul 23 12:00 AM |
| CECO | WALLMAN RICHARD F | Director | Feb 26 '25 | Buy | 25.18 | 15,000 | 377,767 | 207,117 | Feb 27 12:00 AM |
| ROP | WALLMAN RICHARD F | Director | Jan 31 '25 | Sale | 575.25 | 351 | 201,913 | 20,187 | Feb 03 12:00 AM |
| CRL | WALLMAN RICHARD F | Director | Nov 07 '24 | Sale | 216.17 | 7,621 | 1,647,418 | 0 | Nov 12 12:00 AM |
| ROP | WALLMAN RICHARD F | Director | Oct 25 '24 | Sale | 547.00 | 417 | 228,099 | 32,538 | Oct 28 12:00 AM |
| ROP | WALLMAN RICHARD F | Director | Oct 24 '24 | Sale | 550.00 | 2,000 | 1,100,000 | 0 | Oct 28 12:00 AM |
| CECO | WALLMAN RICHARD F | Director | Aug 30 '24 | Buy | 28.77 | 10,000 | 287,722 | 62,000 | Sep 03 12:00 AM |
| CECO | WALLMAN RICHARD F | Director | May 21 '24 | Buy | 24.50 | 4,000 | 98,000 | 205,319 | May 22 12:00 AM |
| CECO | WALLMAN RICHARD F | Director | May 01 '24 | Buy | 21.95 | 5,000 | 109,749 | 191,853 | May 02 12:00 AM |
| CECO | WALLMAN RICHARD F | Director | Mar 06 '24 | Buy | 19.78 | 50,000 | 989,195 | 185,853 | Mar 08 12:00 AM |
| CECO | WALLMAN RICHARD F | Director | Sep 18 '23 | Buy | 15.99 | 10,000 | 159,900 | 133,205 | Sep 19 12:00 AM |
| CECO | WALLMAN RICHARD F | Director | Sep 07 '23 | Buy | 13.76 | 12,000 | 165,120 | 52,000 | Sep 11 12:00 AM |
| CRL | WALLMAN RICHARD F | Director | Aug 24 '23 | Buy | 198.79 | 1,000 | 198,786 | 1,000 | Aug 29 12:00 AM |
| CECO | WALLMAN RICHARD F | Director | Mar 07 '23 | Buy | 15.07 | 10,000 | 150,750 | 40,000 | Mar 08 12:00 AM |
| CRL | WALLMAN RICHARD F | Director | Feb 23 '23 | Buy | 220.73 | 1,750 | 386,278 | 21,864 | Feb 24 12:00 AM |
| ROP | WALLMAN RICHARD F | Director | Feb 14 '23 | Buy | 424.95 | 1,000 | 424,950 | 1,000 | Feb 15 12:00 AM |
| CRL | WALLMAN RICHARD F | Director | Dec 02 '22 | Buy | 218.90 | 1,500 | 328,350 | 20,114 | Dec 06 12:00 AM |
| ROP | WALLMAN RICHARD F | Director | Nov 04 '22 | Buy | 390.00 | 1,000 | 390,000 | 46,409 | Nov 07 12:00 AM |
| CECO | WALLMAN RICHARD F | director: | Aug 09 '22 | Buy | 8.97 | 20,000 | 179,400 | 30,000 | Aug 10 12:00 AM |
| CECO | WALLMAN RICHARD F | director: | Mar 21 '22 | Buy | 5.73 | 16,913 | 96,911 | 100,881 | Mar 23 12:00 AM |
| CECO | WALLMAN RICHARD F | Director | Dec 21 '21 | Buy | 6.01 | 9,574 | 57,540 | 70,881 | Dec 22 12:00 AM |
| CECO | WALLMAN RICHARD F | Director | Dec 20 '21 | Buy | 5.86 | 5,426 | 31,796 | 61,307 | Dec 22 12:00 AM |
| ROP | WALLMAN RICHARD F | Director | Dec 15 '21 | Sale | 474.00 | 1,000 | 474,000 | 44,375 | Dec 17 12:00 AM |
| ROP | WALLMAN RICHARD F | Director | Dec 14 '21 | Sale | 475.50 | 1,750 | 832,125 | 0 | Dec 14 12:00 AM |
| ROP | WALLMAN RICHARD F | Director | Dec 13 '21 | Sale | 475.50 | 2,000 | 951,000 | 46,625 | Dec 14 12:00 AM |
| CECO | WALLMAN RICHARD F | Director | Dec 10 '21 | Buy | 6.10 | 24,470 | 149,185 | 55,881 | Dec 13 12:00 AM |
| CECO | WALLMAN RICHARD F | Director | Dec 09 '21 | Buy | 6.10 | 5,530 | 33,733 | 39,571 | Dec 13 12:00 AM |
| ROP | WALLMAN RICHARD F | Director | Jun 10 '21 | Buy | 453.25 | 2,000 | 906,500 | 58,508 | Jun 11 12:00 AM |
| ROP | WALLMAN RICHARD F | Director | Mar 15 '19 | Buy | 326.97 | 500 | 163,483 | 53,465 | Mar 15 12:00 AM |
| ROP | WALLMAN RICHARD F | Director | Sep 14 '18 | Buy | 312.35 | 500 | 156,175 | 52,965 | Sep 14 12:00 AM |
| ROP | WALLMAN RICHARD F | Director | Jul 27 '18 | Buy | 299.50 | 500 | 149,750 | 52,465 | Jul 27 12:00 AM |
| ROP | WALLMAN RICHARD F | Director | May 23 '18 | Buy | 278.00 | 500 | 139,000 | 48,965 | May 23 12:00 AM |
| ROP | WALLMAN RICHARD F | Director | Mar 12 '18 | Buy | 282.59 | 500 | 141,295 | 48,465 | Mar 13 12:00 AM |