Stocks › CECO
CECO ENVIRONMENTAL CORP
CECO·Nasdaq·
United States·USD
United States·USD$71.16
-4.29 (-5.69%)
Close · Oct 7, 2026 · Close Prices from Tiingo.com
CECO
CECO ENVIRONMENTAL CORP · Nasdaq
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
CECOS&P 500 (rebased)
Congress BuyCongress SellInsider BuyInsider SellForm 1448-K ResultsLobbying
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair
Congressional Trades
Recent trades of CECO by members of U.S. Congress · 2 on record · 2 in the last 12 months
| Politician | Stock | Type | Filed | Traded | |
|---|---|---|---|---|---|
 Gilbert Ray Cisneros, Jr.House · D · CA |
CECOCECO ENVIRONMENTAL CORP · Stock |
Purchase $1,001 - $15,000 |
Sep 10, 2026 | Aug 20, 2026 | Filing ↗ |
| Gilbert Ray Cisneros, Jr.House · D · CA |
CECOCECO ENVIRONMENTAL CORP · Stock |
Purchase $1,001 - $15,000 |
Jul 2, 2026 | Jun 30, 2026 | Filing ↗ |
Whale Activity
Position changes in CECO reported for 2026-06-30 by 19 tracked institutional filers
- Increased7
- New0
- Held0
- Decreased2
- Closed0
- No prior filing10
| Filer | Shares | Value | Change |
|---|---|---|---|
| BlackRock, Inc. | 4.3M | $392.4M | increased |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.3M | $212.3M | increased |
| TWO SIGMA INVESTMENTS, LP | 1.0M | $92.0M | increased |
| NEEDHAM INVESTMENT MANAGEMENT LLC | 957.5K | $86.9M | — |
| ROYCE & ASSOCIATES LP | 842.3K | $76.4M | — |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 454.7K | $41.3M | increased |
| KENNEDY CAPITAL MANAGEMENT LLC | 284.3K | $25.8M | — |
| MILLENNIUM MANAGEMENT LLC | 259.5K | $23.5M | increased |
| Point72 Asset Management, L.P. | 196.1K | $17.8M | increased |
| CITADEL ADVISORS LLC | 160.9K | $14.6M | decreased |
| Informed Momentum Co LLC | 120.7K | $11.0M | — |
| MARTIN & CO INC /TN/ | 111.4K | $10.1M | — |
KeyVex tracks a curated set of large 13F filers plus the largest positions in recent filings, so this is a sample of institutional activity, not the whole market.
Insider Trading
Net shares bought (+) or sold (−) on the open market by CECO insiders, by quarter · Form 4
Recent Insider Transactions
1,339 transactions on record · newest first
| Insider | Type | Shares | Price | Value | Date | |
|---|---|---|---|---|---|---|
| DEZWIREK JASONDirector | Sale | −34.0K | $97.28 | $3.3M | Jun 25, 2026 | Form 4 ↗ |
| DEZWIREK JASONDirector | Sale | −34.0K | $96.61 | $3.3M | Jun 24, 2026 | Form 4 ↗ |
| Johansson Peter K.SVP, Chief Financial Officer | Sale | −30.0K | $96.49 | $2.9M | Jun 24, 2026 | Form 4 ↗ |
| Harris-Peterson CandaceChief Human Resources Officer | Grant / award | +3,105 | $0.00 | $0 | Jun 8, 2026 | Form 4 ↗ |
| SACHS VALERIE GENTILEDirector | Grant / award | +3,190 | $0.00 | $0 | Jun 1, 2026 | Form 4 ↗ |
| WALLMAN RICHARD FDirector | Purchase | +20.0K | $76.85 | $1.5M | Jun 1, 2026 | Form 4 ↗ |
| WALLMAN RICHARD FDirector | Grant / award | +3,443 | $0.00 | $0 | Jun 1, 2026 | Form 4 ↗ |
| SIEGEL LAURIEDirector | Grant / award | +2,215 | $0.00 | $0 | Jun 1, 2026 | Form 4 ↗ |
| KNOWLING ROBERT E JRDirector | Grant / award | +2,215 | $0.00 | $0 | Jun 1, 2026 | Form 4 ↗ |
| Nanda MunishDirector | Grant / award | +2,215 | $0.00 | $0 | Jun 1, 2026 | Form 4 ↗ |
| Mannarino Claudio ADirector | Grant / award | +1,108 | $0.00 | $0 | Jun 1, 2026 | Form 4 ↗ |
| DEZWIREK JASONDirector | Grant / award | +2,215 | $0.00 | $0 | Jun 1, 2026 | Form 4 ↗ |
| Harris-Peterson CandaceChief Human Resources Officer | Grant / award | +625 | — | — | Jun 1, 2026 | Form 4 ↗ |
| Harris-Peterson CandaceChief Human Resources Officer | Grant / award | +4,679 | — | — | Jun 1, 2026 | Form 4 ↗ |
| Harris-Peterson CandaceChief Human Resources Officer | Grant / award | +1,401 | — | — | Jun 1, 2026 | Form 4 ↗ |
| Harris-Peterson CandaceChief Human Resources Officer | Grant / award | +6,313 | — | — | Jun 1, 2026 | Form 4 ↗ |
| Harris-Peterson CandaceChief Human Resources Officer | Grant / award | +2,735 | — | — | Jun 1, 2026 | Form 4 ↗ |
| Harris-Peterson CandaceChief Human Resources Officer | Grant / award | +3,133 | — | — | Jun 1, 2026 | Form 4 ↗ |
| GEORGE MARCUS JDirector | Grant / award | +2,215 | $0.00 | $0 | Jun 1, 2026 | Form 4 ↗ |
| GEORGE MARCUS JDirector | Grant / award | +36.7K | — | — | Jun 1, 2026 | Form 4 ↗ |
Fund Holders
Mutual funds and ETFs holding CECO · SEC Form N-PORT
| Fund | Shares | Value | % of fund | As of |
|---|---|---|---|---|
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 1.7M | $152.1M | 0.01% | Jun 30, 2026 |
| iShares Russell 2000 ETF iShares Trust | 1.4M | $122.9M | 0.15% | Jun 30, 2026 |
| VIP Mid Cap Portfolio Variable Insurance Products Fund III | 1.2M | $104.8M | 1.10% | Jun 30, 2026 |
| SMALLCAP World Fund Inc | 1.1M | $102.2M | 0.11% | Jun 30, 2026 |
| Small Cap Growth Fund American Century Mutual Funds, Inc. | 1.3M | $85.3M | 1.53% | Jul 31, 2026 |
| Needham Aggressive Growth Fund Needham Funds Inc | 917.5K | $83.3M | 3.19% | Jun 30, 2026 |
| Janus Henderson Venture Fund Janus Investment Fund | 746.0K | $67.7M | 1.87% | Jun 30, 2026 |
| T. Rowe Price Small-Cap Stock Fund, Inc. | 645.4K | $58.6M | 0.63% | Jun 30, 2026 |
| VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 608.9K | $55.2M | 0.06% | Jun 30, 2026 |
| T. Rowe Price New Horizons Fund, Inc. | 488.3K | $44.3M | 0.30% | Jun 30, 2026 |
Mutual funds and ETFs whose N-PORT filings list CECO's shares (CUSIP 125141101), each fund at its latest report since Mar 8, 2026, largest positions first. Bonds, options and short positions are left out.
Activist & Passive Stakes
Schedule 13D / 13G beneficial-ownership filings
- T. Rowe Price Investment Management, Inc.SCHEDULE 13G/A · passive (13G) · 2.2M shares3.7%
Aug 14, 2026 · ↗ - Abigail P. JohnsonSCHEDULE 13G/A · passive (13G) · 4.5M shares7.7%
Aug 6, 2026 · ↗ - FMR LLCSCHEDULE 13G/A · passive (13G) · 4.5M shares7.7%
Aug 6, 2026 · ↗ - T. Rowe Price Investment Management, Inc.SCHEDULE 13G · passive (13G) · 2.1M shares6.0%
May 15, 2026 · ↗
Corporate Lobbying
Estimated quarterly lobbying spending reported under the LDA, filings naming CECO ENVIRONMENTAL CORP as client
No lobbying filings found naming CECO ENVIRONMENTAL CORP as the client.
Government Contracts
Federal awards to CECO ENVIRONMENTAL CORP · USAspending
No federal contract awards found for CECO ENVIRONMENTAL CORP.
U.S. Patents
Recent USPTO applications naming CECO ENVIRONMENTAL CORP
No USPTO patent applications found for CECO ENVIRONMENTAL CORP.
Annual Financials
From CECO's 10-K filings · XBRL
No annual XBRL figures on record for CECO. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
Every split and reverse split in the price history
No stock splits in CECO's price history.
Material Events (8-K)
Corporate events filed with the SEC
- 8-K · Items 3.01, 7.01, 9.01Delisting notice · Reg FD disclosureOct 5, 2026
EDGAR ↗ - 8-K · Items 2.02, 9.01Results of operationsAug 10, 2026
EDGAR ↗ - 8-K/A · Items 9.01Aug 3, 2026
EDGAR ↗ - 8-K · Items 7.01, 9.01Reg FD disclosureJun 9, 2026
EDGAR ↗ - 8-K · Items 2.01, 2.03, 5.02, 5.03, 7.01, 9.01Acquisition or disposition · Direct financial obligation · Officer / director changeJun 1, 2026
EDGAR ↗ - 8-K · Items 5.02, 5.07, 7.01, 9.01Officer / director change · Shareholder vote · Reg FD disclosureMay 28, 2026
EDGAR ↗
About CECO ENVIRONMENTAL CORP
From SEC EDGAR company records
Industry (SIC 3564)Industrial & Commercial Fans & Blowers & Air Purifing Equip
SectorIndustrials
HeadquartersADDISON, TX
IncorporatedDE
SEC CIK0000003197 ↗