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.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Manufacturers Life Insurance Company, TheBuy+11,223+82.8%24,784$2.25MQ2 2026Sep 09, 2026
Citadel Advisors LlcSell-56,514-26.0%160,872$14.60MQ2 2026Sep 02, 2026
First Eagle U.S. ValueBuy+31,811+13.1%274,322$24.89MQ2 2026Aug 24, 2026
California State Teachers Retirement SystemBuy+26,223+75.4%60,981$5.53MQ2 2026Aug 24, 2026
Assenagon Asset Management S.A.Buy+219,789219,789$19.94MQ2 2026Aug 21, 2026
Mercer Global Advisors IncBuy+5,9185,918$537.00KQ2 2026Aug 19, 2026
Public Employees Retirement System Of OhioBuy+81,66581,665$7.41MQ2 2026Aug 17, 2026
Formula Growth LtdSell-7,185-11.5%55,159$5.01MQ2 2026Aug 17, 2026
Divisadero Street Capital Management, LpBuy+1,142,217+608.9%1,329,817$120.67MQ2 2026Aug 14, 2026
Driehaus Capital Management LlcBuy+920,594+143.9%1,560,486$141.60MQ2 2026Aug 14, 2026
Price T Rowe Associates IncBuy+814,322+3810.6%835,692$75.83MQ2 2026Aug 14, 2026
Invesco Ltd.Buy+667,929667,929$60.61MQ2 2026Aug 14, 2026
Needham Investment Management LlcBuy+570,000+147.1%957,500$86.88MQ2 2026Aug 14, 2026
Van Lanschot Kempen Investment Management N.V.Buy+327,348327,348$29.70MQ2 2026Aug 14, 2026
Harvey Partners, LlcBuy+311,132311,132$28.23MQ2 2026Aug 14, 2026
Millennium Management LlcBuy+247,726+2105.1%259,494$23.55MQ2 2026Aug 14, 2026
Engineers Gate Manager LpBuy+239,707+6952.1%243,155$22.06MQ2 2026Aug 14, 2026
Lord, Abbett & Co. LlcBuy+227,711+54.9%642,111$58.27MQ2 2026Aug 14, 2026
Oberweis Asset Management Inc/Buy+223,040+165.2%358,072$32.49MQ2 2026Aug 14, 2026
Charles Schwab Investment Management IncBuy+195,155+78.9%442,654$40.17MQ2 2026Aug 14, 2026
Osterweis Capital Management IncSell-174,845-77.2%51,772$4.70MQ2 2026Aug 14, 2026
Bank Of America CorpBuy+157,159+205.9%233,498$21.19MQ2 2026Aug 14, 2026
Goldman Sachs Group IncBuy+139,649+110.4%266,161$24.15MQ2 2026Aug 14, 2026
Kennedy Capital Management LlcBuy+134,536+89.8%284,314$25.80MQ2 2026Aug 14, 2026
Voloridge Investment Management, LlcSell-127,748-95.1%6,622$600.88KQ2 2026Aug 14, 2026
Barclays PlcBuy+103,304+1787.9%109,082$9.90MQ2 2026Aug 14, 2026
Rbf Capital, LlcBuy+88,920+2280.0%92,820$8.42MQ2 2026Aug 14, 2026
Squarepoint Ops LlcSell-85,558-51.8%79,708$7.23MQ2 2026Aug 14, 2026
Qube Research & Technologies LtdBuy+81,93381,933$7.43MQ2 2026Aug 14, 2026
Meros Investment Management, LpBuy+68,06668,066$6.18MQ2 2026Aug 14, 2026
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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.