CECO ENVIRONMENTAL CORP (CECO) Institutional Ownership Changes & 13F Activity
CECO ENVIRONMENTAL CORP (CECO). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Divisadero Street Capital Management, Lp, Driehaus Capital Management Llc, Price T Rowe Associates Inc, Invesco Ltd., and Needham Investment Management Llc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Manufacturers Life Insurance Company, The | Buy | +11,223 | +82.8% | 24,784 | $2.25M | Q2 2026 | Sep 09, 2026 |
| Citadel Advisors Llc | Sell | -56,514 | -26.0% | 160,872 | $14.60M | Q2 2026 | Sep 02, 2026 |
| First Eagle U.S. Value | Buy | +31,811 | +13.1% | 274,322 | $24.89M | Q2 2026 | Aug 24, 2026 |
| California State Teachers Retirement System | Buy | +26,223 | +75.4% | 60,981 | $5.53M | Q2 2026 | Aug 24, 2026 |
| Assenagon Asset Management S.A. | Buy | +219,789 | — | 219,789 | $19.94M | Q2 2026 | Aug 21, 2026 |
| Mercer Global Advisors Inc | Buy | +5,918 | — | 5,918 | $537.00K | Q2 2026 | Aug 19, 2026 |
| Public Employees Retirement System Of Ohio | Buy | +81,665 | — | 81,665 | $7.41M | Q2 2026 | Aug 17, 2026 |
| Formula Growth Ltd | Sell | -7,185 | -11.5% | 55,159 | $5.01M | Q2 2026 | Aug 17, 2026 |
| Divisadero Street Capital Management, Lp | Buy | +1,142,217 | +608.9% | 1,329,817 | $120.67M | Q2 2026 | Aug 14, 2026 |
| Driehaus Capital Management Llc | Buy | +920,594 | +143.9% | 1,560,486 | $141.60M | Q2 2026 | Aug 14, 2026 |
| Price T Rowe Associates Inc | Buy | +814,322 | +3810.6% | 835,692 | $75.83M | Q2 2026 | Aug 14, 2026 |
| Invesco Ltd. | Buy | +667,929 | — | 667,929 | $60.61M | Q2 2026 | Aug 14, 2026 |
| Needham Investment Management Llc | Buy | +570,000 | +147.1% | 957,500 | $86.88M | Q2 2026 | Aug 14, 2026 |
| Van Lanschot Kempen Investment Management N.V. | Buy | +327,348 | — | 327,348 | $29.70M | Q2 2026 | Aug 14, 2026 |
| Harvey Partners, Llc | Buy | +311,132 | — | 311,132 | $28.23M | Q2 2026 | Aug 14, 2026 |
| Millennium Management Llc | Buy | +247,726 | +2105.1% | 259,494 | $23.55M | Q2 2026 | Aug 14, 2026 |
| Engineers Gate Manager Lp | Buy | +239,707 | +6952.1% | 243,155 | $22.06M | Q2 2026 | Aug 14, 2026 |
| Lord, Abbett & Co. Llc | Buy | +227,711 | +54.9% | 642,111 | $58.27M | Q2 2026 | Aug 14, 2026 |
| Oberweis Asset Management Inc/ | Buy | +223,040 | +165.2% | 358,072 | $32.49M | Q2 2026 | Aug 14, 2026 |
| Charles Schwab Investment Management Inc | Buy | +195,155 | +78.9% | 442,654 | $40.17M | Q2 2026 | Aug 14, 2026 |
| Osterweis Capital Management Inc | Sell | -174,845 | -77.2% | 51,772 | $4.70M | Q2 2026 | Aug 14, 2026 |
| Bank Of America Corp | Buy | +157,159 | +205.9% | 233,498 | $21.19M | Q2 2026 | Aug 14, 2026 |
| Goldman Sachs Group Inc | Buy | +139,649 | +110.4% | 266,161 | $24.15M | Q2 2026 | Aug 14, 2026 |
| Kennedy Capital Management Llc | Buy | +134,536 | +89.8% | 284,314 | $25.80M | Q2 2026 | Aug 14, 2026 |
| Voloridge Investment Management, Llc | Sell | -127,748 | -95.1% | 6,622 | $600.88K | Q2 2026 | Aug 14, 2026 |
| Barclays Plc | Buy | +103,304 | +1787.9% | 109,082 | $9.90M | Q2 2026 | Aug 14, 2026 |
| Rbf Capital, Llc | Buy | +88,920 | +2280.0% | 92,820 | $8.42M | Q2 2026 | Aug 14, 2026 |
| Squarepoint Ops Llc | Sell | -85,558 | -51.8% | 79,708 | $7.23M | Q2 2026 | Aug 14, 2026 |
| Qube Research & Technologies Ltd | Buy | +81,933 | — | 81,933 | $7.43M | Q2 2026 | Aug 14, 2026 |
| Meros Investment Management, Lp | Buy | +68,066 | — | 68,066 | $6.18M | Q2 2026 | Aug 14, 2026 |
Frequently asked questions about CECO activity
Which institutional owners are buying CECO?
Institutional owners buying CECO include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in CECO activity?
"Buy" means an investor increased their reported position in CECO compared to the prior reporting period. This reflects growing exposure to CECO ENVIRONMENTAL CORP (CECO) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in CECO increasing?
Institutional interest in CECO can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
Related CECO Institutional Insights
- CECO Overview
- CECO 13F Institutional Holders
- CECO Top Institutional Shareholders
- Industrials Sector Institutional Ownership
- Industrials Sector Portfolio Overlap
- Institutional Portfolio Overlap & Shared Holdings
- Most Bought Industrials Stocks By Institutional Investors
- Most Sold Industrials Stocks By Institutional Investors
- CECO Insider Trading & SEC Form 4 Activity
- CECO Articles
- Top Institutional Investor Stock Rankings