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Company · CECO

CECO Environmental Corp.

Name as listed on its exchange; filed with the SEC as CECO ENVIRONMENTAL CORP.

Nasdaq's symbol directory lists CECO as “CECO Environmental Corp. Common Stock”.

In the 12 months to Nov 8, 2026: insiders sold on 3 occasions ($9.5M); 4 filings by holders of 5% or more; 2 congressional trade disclosures; 1 company report (Form 8-K, since May 26, 2026).

All insider filings at the SEC

Insider trades · SEC Form 4

Those inside the hall

Open-market purchases and sales only. Legs one person filed for one day are combined.

Who traded

  1. Jason DeZwirek sold on 2 days latest Jun 25, 2026 sold $6.6M
  2. Peter K. Johansson, SVP, Chief Financial Officer sold on 1 day latest Jun 24, 2026 sold $2.9M
Every trade (3)
  1. SELLJason DeZwirek sold Jun 25, 2026 34,000 shares filing $3.3M
  2. SELLJason DeZwirek sold Jun 24, 2026 34,000 shares filing $3.3M
  3. SELLPeter K. Johansson, SVP, Chief Financial Officer sold Jun 24, 2026 30,000 shares filing $2.9M

Large holders · SEC Schedules 13D and 13G

Five percent and over

Anyone who comes to hold more than 5% of a company's voting shares must tell the SEC. A Schedule 13D is filed by a holder who may seek to influence the company; a 13G by one who states it is a passive investor. An amendment updates an earlier filing, and a stake reported as 0% means the holder says it has sold all, or nearly all, of its shares. Every recent 13D and 13G

  1. FMR LLC filed Nov 5, 2026 Schedule 13G/A passive 3,752,935 shares filing 6.4%
  2. T. Rowe Price Investment Management, Inc. filed Aug 14, 2026 Schedule 13G/A passive 2,153,953 shares filing 3.7%
  3. American Century Investment Management, Inc. filed Aug 14, 2026 Schedule 13G/A passive filing 3.6%
  4. FMR LLC filed Aug 6, 2026 Schedule 13G/A passive 4,524,438 shares filing 7.7%

Congress · STOCK Act

The Althing

Periodic transaction reports. Amounts are the ranges members report; the trade date is when it happened, the report can come up to 45 days later.

  1. Gilbert Cisneros (D-CA31): Purchase Aug 20, 2026 reported Sep 10, 2026 one of 58 trades the member reported that day House Stocks (including ADRs) $1,001 - $15,000
  2. Gilbert Cisneros (D-CA31): Purchase Jun 30, 2026 reported Jul 2, 2026 one of 66 trades the member reported that day House Stocks (including ADRs) $1,001 - $15,000

Company reports · SEC Form 8-K

In its own words

Current reports the company filed with the SEC; most items are due within four business days of the event. Each line lists the report's items by the SEC's own titles; the filing says what happened. Reports collected since May 26, 2026; every 8-K at the SEC.

  1. Notice of delisting or failure to meet a listing standard; Regulation FD disclosure filing Oct 5, 2026

Sources: SEC EDGAR (Forms 4, 144 and 8-K) and STOCK Act periodic transaction reports. Filings can be late, amended or wrong at the source; see methodology.