Stock Ownership/CECO

CECO ENVIRONMENTAL CORP (CECO): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in CECO · Industrials. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
19
13F filers
Aggregate Value
$300.2M
Across holders
Last Price
$71.30
2026-08-24
Sector
Industrials
GICS
Quarterly fund activity11 increased8 reduced4 exited
Full exits: FARALLON CAPITAL MANAGEMENT LLC, Lighthouse Investment Partners, LLC, TUDOR INVESTMENT CORP ET AL, Man Group plc
Institutional Holders of CECO
↗
19 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund1.01M$92.0M30.6%0.1%Added+$4.9MQ2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
Hedge Fund568K$51.6M17.2%0.0%Added+$41.1MQ2 2026
First Eagle Investment Management, LLC
CIK 0001325447
Institutional Manager274K$24.9M8.3%0.0%Added$-19.1MQ2 2026
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund259K$23.5M7.8%0.0%Added+$22.5MQ2 2026
Rockefeller Capital Management L.P.
CIK 0001739439
Hedge Fund246K$22.3M7.4%0.0%Reduced+$19.6MQ2 2026
Point72 Asset Management, L.P.
CIK 0001603466
Hedge Fund196K$17.8M5.9%0.0%Added+$3.4MQ2 2026
Walleye Capital LLC
CIK 0001758720
Hedge Fund170K$15.4M5.1%0.1%Added+$11.9MQ2 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund161K$14.6M4.9%0.0%Reduced+$12.1MQ2 2026
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund130K$11.8M3.9%0.0%Added+$11.6MQ2 2026
Qube Research & Technologies Ltd
CIK 0001729829
Hedge Fund82K$7.4M2.5%0.0%Added—Q2 2026
TWO SIGMA INVESTMENTS, LPAdded
Hedge Fund
$92.0M· 30.6% of total· 0.1% port· 1.01M sh· +$4.9M QoQ· Q2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPAdded
Hedge Fund
$51.6M· 17.2% of total· 0.0% port· 568K sh· +$41.1M QoQ· Q2 2026
First Eagle Investment Management, LLCAdded
Institutional Manager
$24.9M· 8.3% of total· 0.0% port· 274K sh· $-19.1M QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCAdded
Hedge Fund
$23.5M· 7.8% of total· 0.0% port· 259K sh· +$22.5M QoQ· Q2 2026
Rockefeller Capital Management L.P.Reduced
Hedge Fund
$22.3M· 7.4% of total· 0.0% port· 246K sh· +$19.6M QoQ· Q2 2026
Point72 Asset Management, L.P.Added
Hedge Fund
$17.8M· 5.9% of total· 0.0% port· 196K sh· +$3.4M QoQ· Q2 2026
Walleye Capital LLCAdded
Hedge Fund
$15.4M· 5.1% of total· 0.1% port· 170K sh· +$11.9M QoQ· Q2 2026
CITADEL ADVISORS LLCReduced
Hedge Fund
$14.6M· 4.9% of total· 0.0% port· 161K sh· +$12.1M QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$11.8M· 3.9% of total· 0.0% port· 130K sh· +$11.6M QoQ· Q2 2026
Qube Research & Technologies LtdAdded
Hedge Fund
$7.4M· 2.5% of total· 0.0% port· 82K sh· — QoQ· Q2 2026
Squarepoint Ops LLCReduced
Hedge Fund
$7.2M· 2.4% of total· 0.0% port· 80K sh· $-7.8M QoQ· Q2 2026
MARSHALL WACE, LLPReduced
Hedge Fund
$5.3M· 1.7% of total· 0.0% port· 58K sh· $-3.6M QoQ· Q2 2026
Hudson Bay Capital Management LPAdded
Hedge Fund
$3.6M· 1.2% of total· 0.0% port· 40K sh· +$466K QoQ· Q2 2026
Brevan Howard Capital Management LPAdded
Hedge Fund
$1.1M· 0.4% of total· 0.0% port· 12K sh· +$546K QoQ· Q2 2026
VOLORIDGE INVESTMENT MANAGEMENT, LLCReduced
Hedge Fund
$601K· 0.2% of total· 0.0% port· 7K sh· $-11.6M QoQ· Q2 2026
Magnetar Financial LLCReduced
Hedge Fund
$335K· 0.1% of total· 0.0% port· 4K sh· $-637K QoQ· Q2 2026
FRED ALGER MANAGEMENT, LLCReduced
Hedge Fund
$259K· 0.1% of total· 0.0% port· 3K sh· $-215K QoQ· Q2 2026
Bridgewater Associates, LPReduced
Hedge Fund
$215K· 0.1% of total· 0.0% port· 2K sh· $-628K QoQ· Q2 2026
JUPITER ASSET MANAGEMENT LTDAdded
Hedge Fund
$209K· 0.1% of total· 0.0% port· 2K sh· — QoQ· Q2 2026
1–10 of 19
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