| $247M | ||
| $203M | ||
| $40M | ||
| $21M | ||
| $18M | ||
| $18M |
Buys | $2,978,353 | 4 | 36 |
Sells | $21,063,654 | 7 | 64 |
| WALLMAN RICHARD F | director | 4 | $2.98M | 0 | $0 | $2.98M |
| Nanda Munish | director | 0 | $0 | 1 | $830,145 | $-830,145 |
| Mannarino Claudio A | director | 0 | $0 | 1 | $830,247 | $-830,247 |
| DEZWIREK JASON | director | 0 | $0 | 2 | $4.3M | $-4.3M |
| Gleason Todd R | Chief Executive Officer | 0 | $0 | 3 | $15.1M | $-15.1M |
CECO Environmental Corp. provides industrial air quality and fluid handling systems worldwide. It operates in two segments: Engineered Systems Segment and Industrial Process Solutions Segment. The company engineers, designs, builds, and installs systems that capture, clean, and destroy air- and water-borne emissions from industrial facilities as well as fluid handling, gas separation, and filtration systems. It offers dampers and diverters, selective catalytic reduction and selective non-catalytic reduction systems, cyclonic technology, thermal oxidizers, filtration systems, scrubbers, and water and fluid handling equipment, as well as plant engineering services and engineered design build fabrication. The company markets its products and services to natural gas processors, transmission and distribution companies, refineries, power generators, industrial manufacturing, engineering and construction companies, semiconductor manufacturers, compressor manufacturers, beverage can manufacturers, metals and minerals, and electric vehicle producer companies. CECO Environmental Corp. was incorporated in 1966 and is headquartered in Dallas, Texas.
Over the last 12 months, insiders at CECO Environmental Corp. have bought $2.98M and sold $21.06M worth of CECO Environmental Corp. stock.
On average, over the past 5 years, insiders at CECO Environmental Corp. have bought $1.24M and sold $5.62M worth of stock each year.
Highest buying activity among insiders over the last 12 months: WALLMAN RICHARD F (director) — $2.98M.
The last purchase of 20,000 shares for transaction amount of $1.54M was made by WALLMAN RICHARD F (director) on 2026‑06‑01.
| 2026-06-01 | WALLMAN RICHARD F | director | 20,000 0.0542% | $76.85 | $1.54M | +7.47% | ||
| 2026-05-01 | Sale | Nanda Munish | director | 11,218 0.0311% | $74.00 | $830,145 | +9.40% | |
| 2026-04-29 | WALLMAN RICHARD F | director | 15,000 0.0424% | $73.43 | $1.1M | +11.53% | ||
| 2025-09-22 | Sale | Gleason Todd R | Chief Executive Officer | 98,101 0.2772% | $50.45 | $4.95M | +20.30% | |
| 2025-09-19 | Sale | Gleason Todd R | Chief Executive Officer | 101,899 0.291% | $49.32 | $5.03M | +24.21% | |
| 2025-09-18 | Sale | Gleason Todd R | Chief Executive Officer | 100,000 0.2839% | $51.30 | $5.13M | +18.59% | |
| 2025-09-05 | WALLMAN RICHARD F | director | 3,000 0.0084% | $46.93 | $140,800 | +27.27% | ||
| 2025-08-29 | WALLMAN RICHARD F | director | 4,500 0.0124% | $44.25 | $199,125 | +31.21% | ||
| 2025-07-31 | Sale | DEZWIREK JASON | director | 30,000 0.0823% | $43.54 | $1.31M | +28.79% | |
| 2025-07-30 | Sale | DEZWIREK JASON | director | 70,000 0.1949% | $42.75 | $2.99M | +32.90% | |
| 2025-07-30 | Sale | Mannarino Claudio A | director | 20,000 0.0541% | $41.51 | $830,247 | +32.90% | |
| 2025-03-31 | Sale | Johansson Peter K. | See Remarks | 22,500 0.0643% | $22.80 | $512,933 | +115.13% | |
| 2025-03-27 | Sale | Johansson Peter K. | See Remarks | 5,601 0.0157% | $24.15 | $135,264 | +99.06% | |
| 2025-02-26 | WALLMAN RICHARD F | director | 15,000 0.0432% | $25.18 | $377,767 | +90.01% | ||
| 2024-08-30 | WALLMAN RICHARD F | director | 10,000 0.0257% | $28.77 | $287,722 | -4.15% | ||
| 2024-05-21 | WALLMAN RICHARD F | director | 4,000 0.0087% | $24.50 | $98,000 | +7.77% | ||
| 2024-05-01 | WALLMAN RICHARD F | director | 5,000 0.0098% | $21.95 | $109,749 | +22.73% | ||
| 2024-03-06 | WALLMAN RICHARD F | director | 50,000 0.0882% | $19.78 | $989,195 | +33.99% | ||
| 2024-03-06 | SIEGEL LAURIE | director | 2,500 0.0044% | $19.87 | $49,664 | +33.99% | ||
| 2023-12-21 | Sale | Gleason Todd R | Chief Executive Officer | 14,500 0.0273% | $21.11 | $306,088 | +18.94% |
| Gleason Todd R | Chief Executive Officer | 410835 1.1452% | $32.05M | 1 | 5 | +76.58% |
| DEZWIREK JASON | director | 200000 0.5575% | $15.6M | 24 | 6 | +11.54% |
| WALLMAN RICHARD F | director | 105500 0.2941% | $8.23M | 18 | 0 | +26.09% |
| Mannarino Claudio A | director | 77589 0.2163% | $6.05M | 3 | 1 | +1.62% |
| Nanda Munish | director | 62031 0.1729% | $4.84M | 0 | 1 | |
| BLUM CAPITAL PARTNERS LP | 10 percent owner | 3275626 9.1312% | $255.56M | 24 | 64 | <0.0001% |
| ICARUS INVESTMENT CORP | 10 percent owner | 2619906 7.3033% | $204.41M | 7 | 0 | +45.71% |
| Icarus Investment Corp. | 10 percent owner | 2188736 6.1013% | $170.77M | 6 | 0 | +0.94% |
| Harvey Sandler Revocable Trust | 10 percent owner | 1961903 5.469% | $153.07M | 63 | 2 | +81.69% |
| DEZWIREK PHILLIP | Chairman | 659412 1.8382% | $51.45M | 63 | 2 | +12.45% |
| Ayers Jeffrey David | SVP, General Counsel | 190676 0.5315% | $14.88M | 0 | 2 | |
| Eckl Matthew | Chief Financial Officer | 190454 0.5309% | $14.86M | 5 | 0 | +21.22% |
| Kline John Robert | SVP, AIU | 189743 0.5289% | $14.8M | 0 | 5 | |
| Hurst Andrew | SVP, CTU | 174199 0.4856% | $13.59M | 0 | 6 | |
| STEFFEY SCOTT W | CEO & President | 151092 0.4212% | $11.79M | 3 | 0 | <0.0001% |
| Lang Jeffrey | CEO and President | 146029 0.4071% | $11.39M | 3 | 5 | +4.66% |
| MCCRAY RONALD D | director | 143599 0.4003% | $11.2M | 3 | 1 | <0.0001% |
| LARSON JOHN M | Chairman, President and CEO | 125056 0.3486% | $9.76M | 0 | 3 | |
| Liner David B | director | 118080 0.3292% | $9.21M | 10 | 0 | +10.79% |
| Sadlowski Dennis | Chief Executive Officer | 112700 0.3142% | $8.79M | 8 | 0 | +4.05% |
| Pollack Jonathan | director | 108001 0.3011% | $8.43M | 8 | 0 | <0.0001% |
| Czeszewski David C. | SVP, CIO | 107870 0.3007% | $8.42M | 0 | 4 | |
| WRIGHT DONALD | director | 65400 0.1823% | $5.1M | 5 | 3 | +22.75% |
| Nuggihalli Ramesh | Chief Operating Officer | 63182 0.1761% | $4.93M | 6 | 1 | +35.41% |
| Johansson Peter K. | See Remarks | 62160 0.1733% | $4.85M | 0 | 2 | |
| Peppers Michele A | Principal Accounting Officer | 61473 0.1714% | $4.8M | 0 | 4 | |
| Gohr Paul M | Chief Accounting Officer | 49203 0.1372% | $3.84M | 0 | 1 | |
| BLUM RICHARD | President | 48741 0.1359% | $3.8M | 1 | 1 | +46.18% |
| Henry Chasity | Chief Operating Officer | 44659 0.1245% | $3.48M | 1 | 0 | <0.0001% |
| Lenart Deborah | SVP | 43471 0.1212% | $3.39M | 1 | 0 | <0.0001% |
| PESCH PATRICK K | Exec. VP and CFO | 43100 0.1201% | $3.36M | 0 | 2 | |
| Jackson Gregory L. | director | 40463 0.1128% | $3.16M | 1 | 1 | <0.0001% |
| LALLY THOMAS B | director | 34619 0.0965% | $2.7M | 0 | 4 | |
| OGATA KEITH K | director | 30000 0.0836% | $2.34M | 0 | 5 | |
| LAUB WALLACE O | director | 28584 0.0797% | $2.23M | 0 | 3 | |
| GOLDBERG ERIC MICHAEL | director | 28346 0.079% | $2.21M | 2 | 0 | <0.0001% |
| RUDIN SETH | director | 26546 0.074% | $2.07M | 3 | 0 | +8.06% |
| RYAN PAUL RICHARD | Pres, Cul. & Health Ed. Div. | 21723 0.0606% | $1.69M | 0 | 2 | |
| SACHS VALERIE GENTILE | director | 21470 0.0598% | $1.68M | 1 | 0 | <0.0001% |
| Cape Arthur | director | 21376 0.0596% | $1.67M | 0 | 5 | |
| Jones Diane Auer | SVP, Chief Ext Affairs Officer | 17895 0.0499% | $1.4M | 0 | 2 | |
| Williams Brian R. | SVP | 15863 0.0442% | $1.24M | 1 | 0 | <0.0001% |
| GRUVER JACOB P | Pres., Acad. & College Div. | 15461 0.0431% | $1.21M | 0 | 8 | |
| Flaherty Thomas J | director | 14000 0.039% | $1.09M | 1 | 3 | +78.27% |
| Gray Donna L | SVP | 13797 0.0385% | $1.08M | 1 | 3 | <0.0001% |
| O'Sullivan Colleen M | SVP | 13473 0.0376% | $1.05M | 1 | 0 | <0.0001% |
| Fireng Stephen C | Pres., Univ. Group | 11610 0.0324% | $905,812.20 | 0 | 3 | |
| BLUM DAVID | Senior Vice President | 10000 0.0279% | $780,200.00 | 0 | 2 | |
| FLUGE NICK | Pres., Online Education Group | 8738 0.0244% | $681,738.76 | 0 | 5 | |
| SIEGEL LAURIE | director | 7906 0.022% | $616,826.12 | 1 | 0 | +34% |
| CHOOKASZIAN DENNIS | director | 7000 0.0195% | $546,140.00 | 1 | 0 | +12.34% |
| SOTRAIDIS STEVE B | Executive VP Admin. | 6258 0.0174% | $488,249.16 | 0 | 2 | |
| Krieg Ronald E | director | 6000 0.0167% | $468,120.00 | 1 | 0 | +73.84% |
| CALDERA LOUIS E | director | 5000 0.0139% | $390,100.00 | 1 | 0 | <0.0001% |
| Thornton Leslie T | director | 5000 0.0139% | $390,100.00 | 3 | 0 | <0.0001% |
| Cook Benton Lowell | VP Controller | 5000 0.0139% | $390,100.00 | 0 | 2 | |
| Lesnik Steven H | director | 4000 0.0112% | $312,080.00 | 2 | 0 | <0.0001% |
| DEVONSHIRE DAVID W | director | 3500 0.0098% | $273,070.00 | 2 | 0 | +24.5% |
| Snyder Edward A | director | 1262 0.0035% | $98,461.24 | 5 | 0 | +8.56% |
| COOVER JON R | Group Pres. of Gibbs & Health | 458 0.0013% | $35,733.16 | 1 | 4 | +70.66% |
| Murphy Neal E | VP and Chief Financial Officer | 0 0% | $0 | 0 | 1 | |
| Prajzner Edward J | See Remarks | 0 0% | $0 | 0 | 1 |
CECO Environmental Corp. (CECO) | $195,239,174 | 282 | 25.10% | $2.8B |
$633,500 | 8 | -65.34% | $35.02M | |
$661,768 | 4 | 24.93% | $3.75B | |
$32,949 | 3 | -2.92% | $135.54M | |
$133,345 | 2 | 6.67% | $111.61M |
| Increased Positions | 114 | +45.06% | 5M | +17.81% |
| Decreased Positions | 107 | -42.29% | 5M | -16.26% |
| New Positions | 34 | New | 941,951 | New |
| Sold Out Positions | 31 | Sold Out | 1M | Sold Out |
| Total Postitions | 260 | +2.77% | 30M | +1.55% |
| Blackrock, Inc. | $133,588.00 | 6.21% | 2.23M | -6,364 | -0.28% | 2025-09-30 |
| Fmr Llc | $126,839.00 | 5.89% | 2.12M | -53,231 | -2.45% | 2025-09-30 |
| Vanguard Group Inc | $105,874.00 | 4.92% | 1.77M | +16,708 | +0.95% | 2025-09-30 |
| Capital International Investors | $100,169.00 | 4.65% | 1.68M | -295,983 | -15.01% | 2025-09-30 |
| American Century Companies Inc | $75,204.00 | 3.49% | 1.26M | +1M | +16,844.58% | 2025-09-30 |
| King Luther Capital Management Corp | $67,283.00 | 3.13% | 1.13M | -52,139 | -4.43% | 2025-09-30 |
| Dimensional Fund Advisors Lp | $58,378.00 | 2.71% | 976,382 | -222,414 | -18.55% | 2025-09-30 |
| Janus Henderson Group Plc | $55,013.00 | 2.56% | 920,102 | -20,950 | -2.23% | 2025-09-30 |
| Royce & Associates Lp | $49,336.00 | 2.29% | 825,160 | -180,453 | -17.95% | 2025-09-30 |
| Wellington Management Group Llp | $44,631.00 | 2.07% | 746,466 | -155,136 | -17.21% | 2025-09-30 |