CECO ENVIRONMENTAL CORP (CECO) Stock Institutional Trading Activity


CECO ENVIRONMENTAL CORP (CECO) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Polen Capital Management, First Eagle U.S. Value, Renaissance Technologies LLC, and Olstein Capital Management. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q4 2025Polen Capital ManagementBuy9,55269,775$4,176,034
Q3 2025Polen Capital ManagementBuy41,90660,223$3,083,418
Q3 2025First Eagle U.S. ValueSell-167,222434,256$22,233,907
Q2 2025Polen Capital ManagementBuy18,31718,317$518,554
Q2 2025First Eagle U.S. ValueBuy13,200601,478$17,027,842
Q1 2025First Eagle U.S. ValueBuy22,698588,278$13,412,738
Q4 2024First Eagle U.S. ValueSell-28,584565,580$17,097,483
Q3 2024First Eagle U.S. ValueSell-63,600594,164$16,755,425
Q2 2024First Eagle U.S. ValueBuy64,900657,764$18,976,491
Q1 2024First Eagle U.S. ValueBuy109,500592,864$13,647,729
Q4 2023Renaissance Technologies LLCSell-13,00098,783$2,003
Q4 2023First Eagle U.S. ValueBuy42,731483,364$9,802,622
Q3 2023Renaissance Technologies LLCSell-24,400111,783$1,785
Q3 2023First Eagle U.S. ValueBuy440,633440,633$7,036,909
Q2 2023Renaissance Technologies LLCBuy86,583136,183$1,819
Q1 2023Renaissance Technologies LLCSell-40,38349,600$694
Q4 2022Renaissance Technologies LLCSell-129,10089,983$1,051
Q3 2022Renaissance Technologies LLCBuy201,885219,083$1,939
Q2 2022Renaissance Technologies LLCSell-28,88517,198$103
Q1 2022Renaissance Technologies LLCSell-47,80046,083$253
Q2 2021Renaissance Technologies LLCBuy79,40093,883$672
Q1 2021Renaissance Technologies LLCSell-3,51514,483$115
Q4 2020Renaissance Technologies LLCSell-48,20017,998$125
Q3 2020Renaissance Technologies LLCSell-19,70066,198$483
Q2 2020Renaissance Technologies LLCSell-28,20085,898$566
Q1 2020Renaissance Technologies LLCSell-56,116114,098$533
Q4 2019Renaissance Technologies LLCSell-59,469170,214$1,304
Q3 2019Renaissance Technologies LLCSell-58,600229,683$1,604
Q2 2019Renaissance Technologies LLCBuy99,510288,283$2,765
Q1 2019Renaissance Technologies LLCBuy62,373188,773$1,359

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.