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Ceco Environmental Corp

CECO
Exchange
Nasdaq
Industry
Industrial & Commercial Fans & Blowers & Air Purifing Equip
SEC CIK
0000003197

No open-market purchases or sales by Ceco Environmental Corp insiders were filed in the last 90 days; 343 institutions reported holding it in 13F filings for Q2 2026, worth $4.68B in total; no superinvestor holds it.

13F holders, Q3 2025

Institutional positions in Ceco Environmental Corp as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
225
+47 vs. Q2 2025
Shares held
28.7M
−842.9K (−2.9%) vs. Q2 2025
Total value
$1.47B
+$633.1M (+75.7%) vs. Q2 2025
New holders
65
54 more added
Sold out
18
77 more reduced

1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting CECO on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 225 institutions
Q1 2021: 93 institutionsQ2 2021: 91 institutionsQ3 2021: 83 institutionsQ4 2021: 87 institutionsQ1 2022: 93 institutionsQ2 2022: 98 institutionsQ3 2022: 113 institutionsQ4 2022: 121 institutionsQ1 2023: 140 institutionsQ2 2023: 144 institutionsQ3 2023: 147 institutionsQ4 2023: 156 institutionsQ1 2024: 174 institutionsQ2 2024: 177 institutionsQ3 2024: 174 institutionsQ4 2024: 175 institutionsQ1 2025: 171 institutionsQ2 2025: 179 institutionsQ3 2025: 225 institutionsQ4 2025: 231 institutionsQ1 2026: 265 institutionsQ2 2026: 343 institutions
Value heldQ3 2025: $1.47B
Q1 2021: $192.1MQ2 2021: $172.1MQ3 2021: $162.7MQ4 2021: $143.3MQ1 2022: $129.2MQ2 2022: $131.3MQ3 2022: $197.1MQ4 2022: $256.0MQ1 2023: $308.2MQ2 2023: $318.9MQ3 2023: $379.3MQ4 2023: $485.6MQ1 2024: $548.8MQ2 2024: $745.0MQ3 2024: $749.8MQ4 2024: $868.9MQ1 2025: $662.7MQ2 2025: $836.3MQ3 2025: $1.47BQ4 2025: $1.76BQ1 2026: $1.88BQ2 2026: $4.68B
Institutions holding CECO and their total value by quarter
QuarterHoldersValue
Q2 2026343$4.68B
Q1 2026265$1.88B
Q4 2025231$1.76B
Q3 2025225$1.47B
Q2 2025179$836.3M
Q1 2025171$662.7M
Q4 2024175$868.9M
Q3 2024174$749.8M
Q2 2024177$745.0M
Q1 2024174$548.8M
Q4 2023156$485.6M
Q3 2023147$379.3M
Q2 2023144$318.9M
Q1 2023140$308.2M
Q4 2022121$256.0M
Q3 2022113$197.1M
Q2 202298$131.3M
Q1 202293$129.2M
Q4 202187$143.3M
Q3 202183$162.7M
Q2 202191$172.1M
Q1 202193$192.1M

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Ceco Environmental Corp; share changes are against Q2 2025.

Institutions holding CECO in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Robeco Schweiz AG276,163$14.1M0.32%−176,060−38.9%Reduced
Two Sigma Investments, LP302,691$15.5M0.02%+294,556+3,620.8%Added
Jane Street Group, LLC317,834$16.3M0.02%+257,581+427.5%Added
Loomis Sayles & Co L P327,731$16.8M0.02%−116,565−26.2%Reduced
Citadel Advisors LLC343,548$17.6M0.01%+218,382+174.5%Added
T. Rowe Price Investment Management, Inc.352,381$18.0M0.01%+352,381New
Voya Investment Management LLC403,266$20.6M0.02%−313,367−43.7%Reduced
Legal & General Group Plc406,181$20.8M0.00%−246,077−37.7%Reduced
First Eagle Investment Management, LLC434,256$22.2M0.04%−167,222−27.8%Reduced
Hood River Capital Management LLC492,374$25.2M0.30%−1,449,367−74.6%Reduced
Thrivent Financial for Lutherans493,255$25.3M0.05%−264,178−34.9%Reduced
Driehaus Capital Management LLC518,516$26.5M0.19%−91,532−15.0%Reduced
State Street Corp649,708$33.3M0.00%−7,873−1.2%Reduced
William Blair Investment Management, LLC685,742$35.1M0.09%−260,155−27.5%Reduced
Geode Capital Management, LLC720,966$36.9M0.00%+8,635+1.2%Added
Wellington Management Group LLP746,466$38.2M0.01%−155,136−17.2%Reduced
Royce & Associates LP825,160$42.2M0.42%−180,453−17.9%Reduced
Janus Henderson Group PLC920,102$47.1M0.02%−20,950−2.2%Reduced
Dimensional Fund Advisors LP976,382$50.0M0.01%−222,414−18.6%Reduced
King Luther Capital Management Corp1,125,322$57.6M0.24%−52,139−4.4%Reduced
American Century Companies Inc1,257,796$64.4M0.03%+1,250,373+16,844.6%Added
Capital International Investors1,675,351$85.8M0.01%−295,983−15.0%Reduced
Vanguard Group Inc1,770,756$90.7M0.00%+16,708+1.0%Added
FMR LLC2,121,401$108.6M0.01%−53,231−2.4%Reduced
BlackRock, Inc.2,234,292$114.4M0.00%−6,364−0.3%Reduced
CSM Advisors, LLC0$00.00%−185,435−100.0%Sold out
Universal- Beteiligungs- und Servicegesellschaft mbH0$00.00%−74,360−100.0%Sold out
Assenagon Asset Management S.A.0$00.00%−49,515−100.0%Sold out
ExodusPoint Capital Management, LP0$00.00%−48,396−100.0%Sold out
Marex Group plc0$00.00%−24,974−100.0%Sold out
Options Solutions, LLC0$00.00%−18,317−100.0%Sold out
Cynosure Management, LLC0$00.00%−14,226−100.0%Sold out
Wolverine Trading, LLC0$00.00%−12,414−100.0%Sold out
Robertson Stephens Wealth Management, LLC0$00.00%−12,427−100.0%Sold out
Worth Venture Partners, LLC0$00.00%−11,000−100.0%Sold out
D. E. Shaw & Co., Inc.0$00.00%−10,849−100.0%Sold out
Caption Management, LLC0$00.00%−8,000−100.0%Sold out
Raymond James Financial Inc0$00.00%−3,597−100.0%Sold out
Kessler Investment Group, LLC0$00.00%−3,185−100.0%Sold out
Skopos Labs, Inc.0$00.00%−2,763−100.0%Sold out
Aster Capital Management (DIFC) Ltd0$00.00%−258−100.0%Sold out
Ameritas Advisory Services, LLC0$00.00%−32−100.0%Sold out
Federation des caisses Desjardins du Quebec0$00.00%−10−100.0%Sold out
First Horizon Advisors, Inc.––––Not filed