CECO ENVIRONMENTAL CORP CECO
COM · Common Stock · CUSIP 125141101
- SectorIndustrials
- IndustryIndustrial & Commercial Fans & Blowers & Air Purifing Equip
- HeadquartersAddison, TX
- Founded1966
- Websitececoenviro.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($724.2k this quarter). Holder counts are more reliable. Shares outstanding: 35.0m as of 2024-07-18, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $28.84. Options: 5 managers hold calls ($2.3m notional), 3 hold puts ($244.7k).
Trends to Q2 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 113 |
| Q4 2022 | 121 |
| Q1 2023 | 141 |
| Q2 2023 | 145 |
| Q3 2023 | 148 |
| Q4 2023 | 158 |
| Q1 2024 | 176 |
| Q2 2024 | 179 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 48 | 58 |
| Q1 2023 | 78 | 55 |
| Q2 2023 | 74 | 74 |
| Q3 2023 | 60 | 78 |
| Q4 2023 | 70 | 75 |
| Q1 2024 | 81 | 74 |
| Q2 2024 | 88 | 93 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2023 | $1.2m | $13.8k | 0.01 |
| Q4 2023 | $879.9k | $898.0k | 1.02 |
| Q1 2024 | $2.1m | $1.2m | 0.58 |
| Q2 2024 | $2.3m | $244.7k | 0.11 |
Biggest buyers
| ACK Asset Management LLC | New | +821.2k |
| FMR LLC | Added | +611.4k |
| Hood River Capital Management LLC | New | +537.1k |
| Robeco Schweiz AG | Added | +446.3k |
| Thrivent Financial for Lutherans | New | +411.0k |
| GOLDMAN SACHS GROUP INC | Added | +377.5k |
| Allspring Global Investments Holdings, LLC | Added | +293.2k |
| Capital International Investors | New | +241.7k |
| Invesco Ltd. | Added | +226.1k |
| SCOUT INVESTMENTS, INC. | New | +198.6k |
Biggest sellers
| MORGAN STANLEY | Reduced | -715.5k |
| RK Capital Management, LLC | Sold out | -649.4k |
| BlackRock Inc. | Reduced | -276.6k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -231.5k |
| FRED ALGER MANAGEMENT, LLC | Reduced | -229.0k |
| Tieton Capital Management, LLC | Reduced | -212.4k |
| DIMENSIONAL FUND ADVISORS LP | Reduced | -179.3k |
| HENNESSY ADVISORS INC | Sold out | -162.2k |
| JPMORGAN CHASE & CO | Reduced | -147.5k |
| Millrace Asset Group, Inc. | Reduced | -97.0k |
Biggest calls
| PEAK6 Investments LLC | Added | $1.5m52.8k shares |
| CITADEL ADVISORS LLC | Added | $744.3k25.8k shares |
| GROUP ONE TRADING LLC | Added | $31.7k1.1k shares |
| SIMPLEX TRADING, LLC | Reduced | $11.0k400 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| CITADEL ADVISORS LLC | Reduced | $207.7k7.2k shares |
| SIMPLEX TRADING, LLC | Added | $37.0k1.3k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
DEZWIREK JASON
13D · may seek influence
filed 2026-02-26
Stated purposeItem 4 of the Schedule 13D is hereby amended and supplemented by adding the following at the end thereof: On February 23, 2026, the Issuer, Longhorn Merger Sub Inc., a Delaware corporation and wholly owned subsidiary of the Issuer ("Merger Sub Inc."), and Longhorn Merger Sub LLC, a Delaware limited liability company and wholly owned subsidiary of the Issuer ("Merger Sub LLC"), and Thermon Group Holdings, Inc., a Delaware corporation ("Thermon") entered into an Agreement and Plan of Merger, dated as of February 23, 2026 (the "Merger Agreement"), which provided for, among other things, (i) the merger of Merger Sub Inc. with and into Thermon, with Thermon continuing as the surviving entity (the "Surviving Corporation") (the "First Merger") and (ii) immediately following the First Merger, the… Full filing |
11.7% |
| FMR LLC 13G · institution +1.5 pts · filed 2026-08-06 | 7.7% |
| BlackRock, Inc. 13G · institution filed 2025-07-16 | 6.3% |
Fell to 5% or below in the last year: AMERICAN CENTURY INVESTMENT MANAGEMENT INC (3.6%, 2026-08-14), T. Rowe Price Investment Management, Inc. (3.7%, 2026-08-14), VANGUARD GROUP INC (5.0%, 2026-01-30), Hood River Capital Management LLC (1.4%, 2025-11-14)
Insider purchases and sales in Q2 2024
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2022 | 3 | $324.5k | 0 | — | — |
| Q4 2022 | 1 | $2.8k | 1 | $127.5k | — |
| Q1 2023 | 2 | $191.7k | 2 | $349.9k | — |
| Q2 2023 | 0 | — | 0 | — | — |
| Q3 2023 | 1 | $325.0k | 0 | — | — |
| Q4 2023 | 0 | — | 1 | $306.1k | — |
| Q1 2024 | 2 | $1.0m | 0 | — | — |
| Q2 2024 | 1 | $207.8k | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2024-05-21 | WALLMAN RICHARD F Director | Bought | $98.0k4.0k shares |
| 2024-05-01 | WALLMAN RICHARD F Director | Bought | $109.8k5.0k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2024
| Manager | Shares | Change |
|---|---|---|
| BlackRock Inc. 0.00% of their portfolio | 2.3m $66.9m | Reduced -276.6k |
| DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio | 2.1m $59.5m | Reduced -179.3k |
| VANGUARD GROUP INC 0.00% of their portfolio | 1.6m $46.9m | Added +100.5k |
| KING LUTHER CAPITAL MANAGEMENT CORP 0.16% of their portfolio | 1.3m $36.4m | Reduced -40.5k |
| ROYCE & ASSOCIATES LP 0.24% of their portfolio | 882.0k $25.4m | Reduced -88.5k |
| ACK Asset Management LLC 2.92% of their portfolio | 821.2k $23.7m | New |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 677.6k $19.6m | Added +11.9k |
| STATE STREET CORP 0.00% of their portfolio | 658.5k $19.0m | Added +26.8k |
| First Eagle Investment Management, LLC 0.04% of their portfolio | 657.8k $19.0m | Added +64.9k |
| JANUS HENDERSON GROUP PLC 0.01% of their portfolio | 650.2k $18.8m | Added +2.2k |
| FMR LLC 0.00% of their portfolio | 636.5k $18.4m | Added +611.4k |
| Driehaus Capital Management LLC 0.16% of their portfolio | 586.2k $16.9m | Added +159.5k |
| Robeco Schweiz AG 0.31% of their portfolio | 565.3k $16.3m | Added +446.3k |
| Hood River Capital Management LLC 0.32% of their portfolio | 537.1k $15.5m | New |
| WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio | 505.5k $14.6m | Reduced -75.7k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.01% of their portfolio | 442.0k $12.8m | Added +20.5k |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 434.6k $12.5m | Added +192.0k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 419.0k $12.1m | Added +377.5k |
| Thrivent Financial for Lutherans 0.02% of their portfolio | 411.0k $11.9m | New |
| LOOMIS SAYLES & CO L P 0.02% of their portfolio | 400.6k $11.6m | Unchanged |
| OBERWEIS ASSET MANAGEMENT INC/ 0.70% of their portfolio | 394.7k $11.4m | Reduced -68.7k |
| Manatuck Hill Partners, LLC 5.00% of their portfolio | 393.3k $11.3m | Reduced -34.6k |
| MORGAN STANLEY 0.00% of their portfolio | 321.1k $9.3m | Reduced -715.5k |
| Invesco Ltd. 0.00% of their portfolio | 303.0k $8.7m | Added +226.1k |
| MARTIN & CO INC /TN/ 2.18% of their portfolio | 300.1k $8.7m | Reduced -75.6k |
| Allspring Global Investments Holdings, LLC 0.01% of their portfolio | 293.2k $8.5m | Added +293.2k |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.05% of their portfolio | 277.1k $8.0m | Reduced -61.5k |
| Russell Investments Group, Ltd. 0.01% of their portfolio | 275.5k $7.9m | Reduced -84.6k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 271.3k $7.8m | Added +18.8k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 268.8k $7.8m | Added +195.4k |
| HEARTLAND ADVISORS INC 0.40% of their portfolio | 250.0k $7.2m | Reduced -49.9k |
| Capital International Investors 0.00% of their portfolio | 241.7k $7.0m | New |
| GREAT LAKES ADVISORS, LLC 0.06% of their portfolio | 224.6k $6.5m | Reduced -13.2k |
| FORMULA GROWTH LTD 2.31% of their portfolio | 220.6k $6.4m | Added +22.5k |
| ESSEX INVESTMENT MANAGEMENT CO LLC 1.12% of their portfolio | 207.9k $6.0m | Added +1.9k |
| KENNEDY CAPITAL MANAGEMENT LLC 0.12% of their portfolio | 199.6k $5.8m | Reduced -867 |
| SCOUT INVESTMENTS, INC. 0.15% of their portfolio | 198.6k $5.7m | New |
| Amundi 0.00% of their portfolio | 174.5k $4.9m | New |
| TWO SIGMA ADVISERS, LP 0.01% of their portfolio | 166.9k $4.8m | Reduced -38.4k |
| Informed Momentum Co LLC 0.76% of their portfolio | 161.6k $4.7m | Reduced -9.9k |
| TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio | 157.0k $4.5m | Reduced -1.9k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 155.7k $4.5m | Added +366 |
| MARATHON CAPITAL MANAGEMENT 1.07% of their portfolio | 145.8k $4.2m | Reduced -3.0k |
| FRED ALGER MANAGEMENT, LLC 0.02% of their portfolio | 132.6k $3.8m | Reduced -229.0k |
| AQR CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 124.7k $3.6m | Added +60.9k |
| ALGERT GLOBAL LLC 0.12% of their portfolio | 121.6k $3.5m | Added +5.7k |
| Foundry Partners, LLC 0.18% of their portfolio | 117.0k $3.4m | Reduced -30.7k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 117.0k $3.4m | Reduced -17.5k |
| Continuum Advisory, LLC 0.47% of their portfolio | 112.3k $3.2m | Unchanged |
| CREDIT AGRICOLE S A 0.02% of their portfolio | 109.7k $3.2m | New |
| Assenagon Asset Management S.A. 0.01% of their portfolio | 101.6k $2.9m | Added +34.4k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 99.1k $2.9m | Added +29.0k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 98.4k $2.8m | Reduced -147.5k |
| Redwood Investments, LLC 0.88% of their portfolio | 90.2k $2.6m | Reduced -27.5k |
| Calamos Advisors LLC 0.01% of their portfolio | 89.7k $2.6m | Reduced -52.4k |
| NAVELLIER & ASSOCIATES INC 0.30% of their portfolio | 89.5k $2.6m | Added +153 |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 83.1k $2.4m | Reduced -114 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 82.6k $2.4m | Added +3.3k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 80.0k $2.3m | Added +65.9k |
| WHITE PINE CAPITAL LLC 0.79% of their portfolio | 72.2k $2.1m | Reduced -52.2k |
| Legato Capital Management LLC 0.28% of their portfolio | 71.7k $2.1m | Reduced -9.8k |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd 0.23% of their portfolio | 71.1k $2.1m | Added +9.6k |
| VAN ECK ASSOCIATES CORP 0.00% of their portfolio | 67.1k $1.9m | Reduced -1.6k |
| Maxi Investments CY Ltd 0.43% of their portfolio | 65.2k $1.9m | New |
| BAILARD, INC. 0.05% of their portfolio | 65.0k $1.9m | Reduced -12.3k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 62.4k $1.8m | Added +47.5k |
| Connor, Clark & Lunn Investment Management Ltd. 0.01% of their portfolio | 60.3k $1.7m | Reduced -30.2k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 59.2k $1.7m | Reduced -231.5k |
| Swiss National Bank 0.00% of their portfolio | 58.3k $1.7m | Reduced -3.5k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 57.2k $1.7m | Added +12.7k |
| Janney Montgomery Scott LLC 0.00% of their portfolio | 55.2k $1.6m | Reduced -7.7k |
| Cruiser Capital Advisors, LLC 1.84% of their portfolio | 46.0k $1.3m | Reduced -4.0k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 41.7k $1.2m | Reduced -2.0k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.00% of their portfolio | 40.5k $1.2m | Unchanged |
| Trexquant Investment LP 0.02% of their portfolio | 39.0k $1.1m | Reduced -27.6k |
| BANTAMAC CAPITAL, LLC 0.67% of their portfolio | 38.6k $1.1m | Added +5.0k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 38.4k $1.1m | Added +5.1k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 38.1k $1.1m | Added +1.3k |
| NorthCrest Asset Manangement, LLC 0.03% of their portfolio | 33.6k $968.9k | Added +3 |
| CHARTWELL INVESTMENT PARTNERS, LLC 0.03% of their portfolio | 31.1k $898.0k | Reduced -16.5k |
| Empirical Asset Management, LLC 0.33% of their portfolio | 30.7k $886.0k | Added +9.4k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 30.1k $869.0k | Unchanged |
| BARCLAYS PLC 0.00% of their portfolio | 29.6k $853.6k | Reduced -25.3k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 28.9k $833.3k | Reduced -2.3k |
| Legal & General Group Plc 0.00% of their portfolio | 26.9k $777.4k | Added +1.6k |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 24.5k $706.0k | Added +3.0k |
| Boston Partners 0.00% of their portfolio | 23.9k $689.5k | Added +1.5k |
| Cox Capital Mgt LLC 0.39% of their portfolio | 22.5k $649.3k | Unchanged |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 22.4k $645.0k | Reduced -38.8k |
| UBS Group AG 0.00% of their portfolio | 21.8k $630.3k | Reduced -19.7k |
| Semanteon Capital Management, LP 0.42% of their portfolio | 20.6k $594.1k | New |
| TUDOR INVESTMENT CORP ET AL 0.01% of their portfolio | 20.1k $578.5k | New |
| Perritt Capital Management Inc 0.32% of their portfolio | 20.0k $577.0k | Unchanged |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 18.9k $545.7k | Added +2.4k |
| PANAGORA ASSET MANAGEMENT INC 0.00% of their portfolio | 18.8k $542.9k | Added +3.3k |
| Millrace Asset Group, Inc. 0.52% of their portfolio | 18.6k $536.0k | Reduced -97.0k |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC 0.01% of their portfolio | 17.6k $508.0k | Reduced -2.4k |
| ExodusPoint Capital Management, LP 0.01% of their portfolio | 17.5k $506.0k | New |
| MetLife Investment Management, LLC 0.00% of their portfolio | 17.3k $499.9k | Added +1.6k |
| Weil Company, Inc. 0.18% of their portfolio | 16.7k $482.8k | Reduced -6.7k |