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Disclosery

CECO CECO ENVIRONMENTAL CORP

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COM (common), issuer CIK 3197

258 managers (266 13F filers) reported a position in CECO shares at 2026-03-31, 31,525,641 shares in all. 57 filers opened a position and 25 filers sold out during the quarter.

Managers
258
13F filers
266
New
57
Added
89
Reduced
80
Sold out
25
Shares held by filers
31,525,641

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
FMR LLCin group FMR LLC2,328,888$139M0.01%+117,51613F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.2,285,277$136M<0.01%-8213F-HRTimelineGroup
T. Rowe Price Investment Management, In…2,131,845$127M0.09%+1,412,85313F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC1,894,177$113M0.06%-144,13513F-HRTimelineGroup
VANGUARD GROUP INCgroup of 6 filers holding1,822,287$109MnewTimeline
Capital World Investors1,055,080$62.9M0.01%+721,98213F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP959,698$57.2M0.05%+434,13113F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson907,782$54.1M0.03%-14,21813F-HR/ATimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP903,291$53.8M0.01%+7,75113F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC856,133$51M<0.01%+126,43313F-HRTimelineGroup
EMERALD ADVISERS, LLCgroup of 2 filers holding837,022$49.9M+117,899Timeline
ROYCE & ASSOCIATES LP827,781$49.3M0.49%+87,09413F-HRTimeline
KING LUTHER CAPITAL MANAGEMENT CORP750,083$44.7M0.19%-201,11613F-HRTimeline
STATE STREET CORPin group STATE STREET CORP657,349$39.2M<0.01%+6,46313F-HRTimelineGroup
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…640,006$38.1M0.07%-32,14113F-HRTimelineGroup
Driehaus Capital Management LLC639,892$38.1M0.28%+59,94213F-HRTimeline
IES Holdings, Inc.568,527$33.9M15.83%+285,09513F-HRTimeline
LORD, ABBETT & CO. LLC414,400$24.7M0.08%+212,18413F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc400,472$23.9M0.01%-17,78313F-HRTimelineGroup
NEEDHAM INVESTMENT MANAGEMENT LLCin group NEEDHAM INVESTMENT MANAGEMENT…387,500$23.1M1.18%+89,00013F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY350,740$20.9M<0.01%+56,62513F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding261,417$15.6M-71,208Timeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…254,321$15.2M0.03%new13F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP251,904$15M0.02%+244,10413F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP251,874$15M<0.01%+6,71313F-HRTimelineGroup
MARTIN & CO INC /TN/249,462$14.9M2.53%+6,16313F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co247,499$14.7M<0.01%-6,22713F-HRTimelineGroup
First Eagle Investment Management, LLCin group First Eagle Investment Manage…242,511$14.4M0.02%-124,35613F-HR/ATimelineGroup
FARALLON CAPITAL MANAGEMENT, L.L.C.234,000$13.9M0.08%new13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
LOOMIS SAYLES & CO L Pin group LOOMIS SAYLES & CO L P229,014$13.6M0.02%-98,49513F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\227,787$13.6M<0.01%+3,00313F-HRTimelineGroup
OSTERWEIS CAPITAL MANAGEMENT INCin group OSTERWEIS CAPITAL MANAGEMENT …226,617$13.5M0.7%+2,93513F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC217,386$13M0.01%+152,32413F-HRTimelineGroup
BESSEMER GROUP INCin group BESSEMER GROUP INC216,494$12.9M0.02%+216,29413F-HRTimelineGroup
Robeco Schweiz AGin group Robeco Institutional Asset Ma…198,743$11.8M0.25%+67,52713F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS191,494$11.4M0.01%+14,60913F-HRTimelineGroup
Divisadero Street Capital Management, LPin group Divisadero Street Capital Man…187,600$11.2M0.52%new13F-HRTimelineGroup
SEGALL BRYANT & HAMILL, LLC175,054$10.4M0.15%-9,06613F-HR/ATimeline
Amundiin group Amundi168,199$10M<0.01%-8,79713F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC165,266$9.85M0.02%+91,72213F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.159,079$9.48M0.02%new13F-HRTimelineGroup
ESSEX INVESTMENT MANAGEMENT CO LLC157,246$9.37M1.48%+2,78913F-HRTimeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP156,563$9.33M0.01%+3,51313F-HRTimelineGroup
PEREGRINE CAPITAL MANAGEMENT LLC154,307$9.19M0.34%-28,44813F-HRTimeline
Pier Capital, LLC150,245$8.95M1.48%+52,40313F-HRTimeline
KENNEDY CAPITAL MANAGEMENT LLC149,778$8.92M0.19%+2,72313F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources147,465$8.79M<0.01%-106,02613F-HRTimelineGroup
Allspring Global Investments Holdings, …in group Allspring Global Investments …146,701$8.74M0.01%-47,62113F-HRTimelineGroup
POLEN CAPITAL MANAGEMENT LLC143,231$8.53M0.06%+73,45613F-HRTimeline
OBERWEIS ASSET MANAGEMENT INC/135,032$8.05M0.24%-10,47613F-HRTimeline
VOLORIDGE INVESTMENT MANAGEMENT, LLC134,370$8.01M0.03%+21,02713F-HRTimeline
SILVERCREST ASSET MANAGEMENT GROUP LLC131,652$7.84M0.06%-74,81513F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC126,512$7.54M<0.01%+46,93713F-HRTimelineGroup
Nuveen, LLCin group TIAA121,866$7.26M<0.01%-136,89213F-HRTimelineGroup
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …115,242$6.87M<0.01%+87,17313F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…114,482$6.82M0.01%+4,75213F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO111,313$6.63M0.01%+3,33813F-HRTimelineGroup
MARATHON CAPITAL MANAGEMENT98,330$5.86M1.32%-3,35513F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC93,157$5.55M<0.01%+65,66813F-HRTimelineGroup
Granahan Investment Management, LLC92,728$5.52M0.27%-16,16113F-HRTimeline
GREAT LAKES ADVISORS, LLC91,071$5.43M0.04%-26,33213F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp86,405$5.15M<0.01%-1,77113F-HRTimelineGroup
SG Americas Securities, LLC78,143$4.66M0.01%-2,59313F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/76,339$4.55M<0.01%-49,64013F-HRTimelineGroup
Peregrine Asset Advisers, Inc.73,886$4.4M1.19%-39,98413F-HRTimeline
Panoramic Capital, LLC66,566$3.97M2.78%+20,00013F-HRTimeline
4D Advisors, LLC65,000$3.87M2.45%new13F-HRTimeline
WHITE PINE CAPITAL LLC64,507$3.84M1.05%+2413F-HR/ATimeline
FORMULA GROWTH LTD62,344$3.71M1.68%-8,37613F-HRTimeline
Legato Capital Management LLC60,626$3.61M0.33%-20,49713F-HRTimeline
Swiss National Bank59,900$3.57M<0.01%+60013F-HRTimeline
Calamos Advisors LLCin group Calamos Advisors LLC58,053$3.46M0.01%+5,14313F-HRTimelineGroup
Moran Wealth Management, LLC56,953$3.39M0.1%+45,41113F-HRTimeline
TIG Advisors, LLCin group TIG Advisors, LLC54,234$3.23M0.15%new13F-HRTimelineGroup
Aquatic Capital Management LLC52,731$3.14M0.09%new13F-HRTimeline
TD Asset Management Inc52,724$3.14M<0.01%+28,76213F-HRTimeline
NOMURA ASSET MANAGEMENT CO LTDgroup of 2 filers holding50,520$3.01M-862Timeline
1060 Capital, LLC50,000$2.98M3.62%new13F-HRTimeline
North Star Investment Management Corp.48,150$2.87M0.17%+3,00013F-HRTimeline
CREDIT AGRICOLE S Ain group CREDIT AGRICOLE S A47,936$2.86M0.01%013F-HRTimelineGroup
TUDOR INVESTMENT CORP ET AL47,252$2.82M0.02%-57,36413F-HRTimeline
NAVELLIER & ASSOCIATES INC45,280$2.7M0.28%+2,82513F-HRTimeline
Janney Montgomery Scott LLC45,040$2.68M0.01%-46013F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…41,697$2.48M<0.01%-17,48713F-HRTimelineGroup
JACOBS LEVY EQUITY MANAGEMENT, INC40,498$2.41M0.01%013F-HRTimeline
Expect Equity LLC38,473$2.29M1.78%-9,41113F-HR/ATimeline
Walleye Capital LLCin group Walleye Capital LLC38,449$2.29M0.01%new13F-HR/ATimelineGroup
Continuum Advisory, LLC37,443$2.23M0.21%013F-HRTimeline
Invesco Ltd.in group Invesco Ltd.36,956$2.2M<0.01%-98,55513F-HRTimelineGroup
RHUMBLINE ADVISERS36,031$2.15M<0.01%+1413F-HRTimeline
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…35,000$2.09M0.01%new13F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…34,758$2.07M<0.01%+7,33613F-HRTimeline
Creative Planningin group Creative Planning34,512$2.06M<0.01%+28,28913F-HRTimelineGroup
PRINCIPAL FINANCIAL GROUP INCin group PRINCIPAL FINANCIAL GROUP INC34,485$2.05M<0.01%+6,26013F-HRTimelineGroup
HighTower Advisors, LLC34,416$2.05M<0.01%+13,83913F-HRTimeline
NorthCrest Asset Manangement, LLC32,265$2.01M0.06%+12213F-HRTimeline
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC33,426$1.99M<0.01%+28,58313F-HRTimelineGroup
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC33,306$1.98M<0.01%-1,48913F-HR/ATimelineGroup
ALLIANCEBERNSTEIN L.P.30,920$1.85M<0.01%+40013F-HRTimeline
Lisanti Capital Growth, LLC30,860$1.84M0.46%-53,37513F-HRTimeline
CVFG LLC30,464$1.82M0.23%new13F-HRTimeline
Empirical Asset Management, LLC30,025$1.79M0.47%+46413F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC25,680$1.53M<0.01%new13F-HRTimelineGroup
COOKSON PEIRCE & CO INC24,593$1.47M0.06%+1,00813F-HRTimeline
IQ EQ FUND MANAGEMENT (SINGAPORE) PRIVA…24,000$1.43M2.39%+1,00013F-HRTimeline
SageView Advisory Group, LLC23,816$1.42M0.05%-2513F-HRTimeline
BAILARD, INC.23,700$1.41M0.03%-3,32213F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN23,463$1.4M<0.01%-77,42513F-HR/ATimelineGroup
Pathstone Holdings, LLCin group Pathstone Holdings, LLC23,259$1.39M0.01%-4,26113F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO24,256$1.38M<0.01%+1,43313F-HR/ATimelineGroup
BOOTHBAY FUND MANAGEMENT, LLC22,057$1.31M0.03%+14,80213F-HRTimeline
Trexquant Investment LP21,700$1.29M0.01%new13F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/21,370$1.27M<0.01%+3,98313F-HRTimeline
Arkadios Wealth Advisors17,888$1.07M0.02%new13F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\17,317$1.03M<0.01%-68413F-HRTimelineGroup
Zurcher Kantonalbank (Zurich Cantonalba…16,719$996K<0.01%+1,51413F-HRTimeline
Private Advisor Group, LLC16,497$983K<0.01%013F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…16,097$959K<0.01%-91313F-HRTimelineGroup
OPPENHEIMER & CO INCin group OPPENHEIMER ASSET MANAGEMENT …16,065$957K0.01%new13F-HRTimelineGroup
OFI INVEST ASSET MANAGEMENT18,082$935K0.01%013F-HRTimeline
Counterpoint Mutual Funds LLC14,744$878K0.13%+6,33413F-HRTimeline
Taconic Capital Advisors LPin group Taconic Capital Advisors LP14,018$835K0.57%new13F-HR/ATimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…13,831$824K<0.01%+14713F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …13,561$808K<0.01%-65813F-HRTimelineGroup
Marex Group Ltdin group Marex Group Ltd13,510$805K0.01%+5,51013F-HRTimelineGroup
DARK FOREST CAPITAL MANAGEMENT LP13,083$779K0.07%new13F-HRTimeline
Yorktown Management & Research Co Inc12,900$769K0.64%+3,20013F-HRTimeline
RITHOLTZ WEALTH MANAGEMENT12,734$759K0.01%-21513F-HRTimeline
O'SHAUGHNESSY ASSET MANAGEMENT, LLC12,326$734K<0.01%-1,98913F-HRTimeline
Cox Capital Mgt LLC12,088$720K0.48%013F-HRTimeline
KORNITZER CAPITAL MANAGEMENT INC /KS12,015$716K0.02%new13F-HRTimeline
LPL Financial LLC11,853$706K<0.01%+3,61013F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC11,768$701K<0.01%-26,80913F-HRTimelineGroup
Jump Financial, LLCin group Jump Financial, LLC11,606$691K0.01%-2,47513F-HRTimelineGroup
ALGERT GLOBAL LLC10,400$620K0.01%013F-HR/ATimeline
NEW YORK STATE COMMON RETIREMENT FUND10,350$617K<0.01%-30013F-HRTimeline
Kassira Wealth Management LLC10,343$616K0.57%new13F-HRTimeline
Concentric Capital Strategies, LP9,603$572K0.05%new13F-HRTimeline
Independent Advisor Alliance9,532$568K0.01%-21,45513F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC9,452$563K0.01%-1,68813F-HRTimeline
KESTRA PRIVATE WEALTH SERVICES, LLCin group Kestra Advisory Services, LLC9,330$556K0.01%new13F-HRTimelineGroup
Bridgewater Associates, LP9,288$553K<0.01%new13F-HRTimeline
OP Asset Management Ltd9,248$551K0.01%new13F-HR/ATimeline
GUYASUTA INVESTMENT ADVISORS INC8,750$521K0.03%-1,25013F-HRTimeline
Inspire Investing, LLCin group Inspire Investing, LLC8,694$518K0.03%+91613F-HRTimelineGroup
STATE BOARD OF ADMINISTRATION OF FLORID…8,510$507K<0.01%013F-HRTimeline
LANARK FINANCIAL, INC.8,421$502K0.04%+43013F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM8,321$496K<0.01%-3313F-HRTimeline
Police & Firemen's Retirement System of…8,212$489K<0.01%+61813F-HRTimeline
Aigen Investment Management, LP8,195$488K0.13%new13F-HRTimeline
HARVEST MANAGEMENT LLC8,000$477K0.25%new13F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.7,570$451K<0.01%+5,43313F-HRTimelineGroup
Worth Venture Partners, LLC7,515$448K1.42%new13F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD7,374$439K<0.01%new13F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC7,290$434K<0.01%-1,61113F-HRTimelineGroup
GUGGENHEIM CAPITAL LLCin group GUGGENHEIM CAPITAL LLC7,229$431K<0.01%+3,59313F-HRTimelineGroup
Whalen Wealth Management Inc.7,172$427K0.23%new13F-HRTimeline
Magnetar Financial LLCin group Magnetar Financial LLC7,065$421K<0.01%new13F-HRTimelineGroup
Integrated Quantitative Investments LLC6,861$409K0.07%new13F-HRTimeline
KLP KAPITALFORVALTNING AS6,800$405K<0.01%+40013F-HRTimeline
BARD ASSOCIATES INC6,784$404K0.1%-15913F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd6,373$380K0.01%new13F-HRTimelineGroup
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…6,101$363K<0.01%-8,66913F-HRTimelineGroup
Councilmark Asset Management, LLC6,050$360K0.21%013F-HRTimeline
COMMERCE BANKin group COMMERCE BANK6,033$359K<0.01%new13F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC5,778$344K<0.01%-40,20713F-HRTimelineGroup
ALLSTATE CORPin group ALLSTATE CORP5,653$337K<0.01%new13F-HRTimelineGroup
Man Group plcin group Man Group plc5,628$335K<0.01%new13F-HRTimelineGroup
COMMONWEALTH EQUITY SERVICES, LLC5,473$326K<0.01%-64213F-HRTimeline
EQUITABLE TRUST CO5,270$314K0.01%new13F-HRTimeline
FRED ALGER MANAGEMENT, LLCin group FRED ALGER MANAGEMENT, LLC5,230$312K<0.01%-3,62513F-HRTimelineGroup
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC5,124$305K<0.01%-23213F-HRTimelineGroup
Boston Partnersin group Boston Trust Walden Corp4,979$297K<0.01%-22513F-HRTimelineGroup
Jefferies Financial Group Inc.in group Jefferies Financial Group Inc.4,944$295K<0.01%new13F-HRTimelineGroup
Abacus Wealth Partners, LLC4,531$270K0.02%+96613F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…4,483$267K<0.01%+83713F-HRTimelineGroup
Cruiser Capital Advisors, LLC4,431$264K0.1%013F-HRTimeline
ProShare Advisors LLC4,274$255K<0.01%-1,11613F-HRTimeline
Rockwood Wealth Management, LLC4,200$250K0.02%013F-HRTimeline
MANGROVE PARTNERS IM, LLC4,083$243K0.02%new13F-HRTimeline
WEDBUSH SECURITIES INC4,037$241K0.01%-18813F-HRTimeline
VIRGINIA RETIREMENT SYSTEMS ET Al3,950$235K<0.01%new13F-HRTimeline
Brooklyn Investment Group3,929$234K0.01%+16613F-HRTimeline
Tidal Investments LLCin group Tidal Investments LLC3,924$234K<0.01%-9613F-HRTimelineGroup
Round Rock Advisors LLC3,921$234K0.04%-7,02913F-HRTimeline
RBF Capital, LLC3,900$232K0.01%013F-HR/ATimeline
CONTRAVISORY INVESTMENT MANAGEMENT, INC.3,885$231K0.05%new13F-HRTimeline
Truvestments Capital LLC3,852$230K0.04%013F-HRTimeline
Cetera Investment Advisers3,800$226K<0.01%new13F-HRTimeline
EntryPoint Capital, LLC3,770$225K0.07%new13F-HRTimeline
Lighthouse Investment Partners, LLCin group Lighthouse Investment Partner…3,670$219K0.01%new13F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC3,458$206K<0.01%+1,68213F-HRTimelineGroup
Engineers Gate Manager LP3,448$205K<0.01%-2,55713F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP3,051$186K<0.01%+25013F-HRTimelineGroup
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co3,031$182K<0.01%013F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA2,843$169K<0.01%-84313F-HRTimelineGroup
Ravenstone Capital Management Inc.2,750$164K0.08%-2,75013F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…2,741$163K<0.01%+1,66013F-HRTimelineGroup
EASTERN BANK2,579$154K<0.01%-64213F-HRTimeline
FNY Investment Advisers, LLC2,500$148K0.06%new13F-HRTimeline