CECO Environmental
CECO · NASDAQ
Who owns CECO
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 41.2% of CECO’s shares.
- Fidelity Management & Research Company LLC7.5%
- BlackRock Institutional Trust Company, N.A.6.3%
- Icarus Investment Corporation4.7%
- Vanguard Capital Management, LLC4.0%
- Next 6 largest institutions18.6%
- All other shareholders58.8%
| Holder | Shares | % of shares |
|---|---|---|
| Fidelity Management & Research Company LLC | 4.37M | 7.49% |
| BlackRock Institutional Trust Company, N.A. | 3.68M | 6.30% |
| Icarus Investment Corporation | 2.77M | 4.74% |
| Vanguard Capital Management, LLC | 2.34M | 4.01% |
| Dimensional Fund Advisors, L.P. | 2.19M | 3.74% |
| T. Rowe Price Investment Management, Inc. | 2.15M | 3.69% |
| American Century Investment Management, Inc. | 2.09M | 3.58% |
| Driehaus Capital Management, LLC | 1.56M | 2.67% |
| Geode Capital Management, L.L.C. | 1.46M | 2.50% |
| Dezwirek (Jason Louis) | 1.43M | 2.45% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Total Stock Market Index Fund | 1.68M | 2.88% |
| iShares Russell 2000 ETF | 1.36M | 2.33% |
| American Century Small Cap Growth Fund | 1.25M | 2.14% |
| American Funds SMALLCAP World Fund | 1.13M | 1.93% |
| Fidelity VIP Mid Cap Portfolio | 1.10M | 1.88% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders bought $2.64M (3 trades) and sold $10.32M (4 trades) of CECO on the open market.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Johansson Peter K. | Tax withholding | 2.91K | $231.93K |
| Harris-Peterson Candace | Tax withholding | 890 | $70.34K |
| Kovachev Kiril | Tax withholding | 460 | $37.79K |
| DEZWIREK JASON | Sale | 34.00K | $3.31M |
| DEZWIREK JASON | Sale | 34.00K | $3.28M |
| Johansson Peter K. | Sale | 30.00K | $2.89M |
| Harris-Peterson Candace | Award | 3.10K | — |
| DEZWIREK JASON | Award | 2.21K | — |
| Harris-Peterson Candace | Award | 625 | — |
| Harris-Peterson Candace | Award | 4.68K | — |
Congressional trades
Disclosed by members of Congress over the last 12 months
| Member | Type | Amount | Traded |
|---|---|---|---|
| Gilbert CisnerosHouse | Purchase | $1K–$15K | Aug 20, 2026 |
Short interest
Settled Sep 30, 2026
- Shares short
- 1.91M
- Days to cover
- 2.78
- % of shares outstanding
- 3.27%
- Average daily volume
- 687.27K
- Change since last report
- −2.9%
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