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Ceco Environmental
CECO

Overview Fund Activity

176 hedge funds and large institutions have $835M invested in Ceco Environmental in 2025 Q2 according to their latest regulatory filings, with 28 funds opening new positions, 65 increasing their positions, 51 reducing their positions, and 17 closing their positions.

Holders
176
Holders Change
+7
Holders Change %
+4.14%
% of All Funds
2.36%
Holding in Top 10
2
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+100%
% of All Funds
0.03%
New
28
Increased
65
Reduced
51
Closed
17
Calls
$1.68M
Puts
$200K
Net Calls
+$1.48M
Net Calls Change
+$122K

Top Buyers

1
Wellington Management Group
1
Wellington Management Group
Massachusetts
$25.5M
2
Janus Henderson Group
2
Janus Henderson Group
United Kingdom
$26.6M
3
SBH
3
Segall Bryant & Hamill
Illinois
$7.39M
4
OCM
4
Osterweis Capital Management
California
$7.17M
5
CA
5
CSM Advisors
Pennsylvania
$5.25M

Top Sellers

1
AAM
1
ACK Asset Management
Connecticut
$0
2
Allspring Global Investments
2
Allspring Global Investments
North Carolina
$9.86M
3
Squarepoint
3
Squarepoint
New York
$1.11M
4
RS
4
Robeco Schweiz
Switzerland
$12.8M
5
MHP
5
Manatuck Hill Partners
Connecticut
$0
Name Market Value Shares Shares
Change 		Shares
Change %
AAM
176
ACK Asset Management
Connecticut
– – -1,201,000 Closed
MHP
177
Manatuck Hill Partners
Connecticut
– – -73,300 Closed
CCA
178
Cruiser Capital Advisors
Connecticut
– – -49,570 Closed
DFCM
179
Dark Forest Capital Management
Puerto Rico
– – -37,806 Closed
SOW
180
State of Wyoming
Wyoming
– – -36,147 Closed
Principal Financial Group
181
Principal Financial Group
Iowa
– – -24,755 Closed
SC
182
SummitTX Capital
Texas
– – -15,800 Closed
Arrowstreet Capital
183
Arrowstreet Capital
Massachusetts
– – -15,531 Closed
CF
184
Corebridge Financial
Texas
– – -14,330 Closed
MFIM
185
Mesirow Financial Investment Management
Illinois
– – -11,141 Closed
AGM
186
Alpine Global Management
New York
– – -10,839 Closed
CFM
187
Catalyst Funds Management
Australia
– – -10,200 Closed
A
188
AlphaQuest
New York
– – -541 Closed
QCG
189
Quadrant Capital Group
Ohio
– – -281 Closed
CCM
190
Coldstream Capital Management
Washington
– – -162 Closed
SHIM
191
Stone House Investment Management
Pennsylvania
– – -74 Closed
CIAM
192
Caitong International Asset Management
Hong Kong
– – -72 Closed
C
193
Covestor
United Kingdom
$0 3 -4 -57%
Nomura Asset Management
194
Nomura Asset Management
Japan
– – – –
Group One Trading
195
Group One Trading
Illinois
– – – –
PEAK6
196
PEAK6
Illinois
– – – –
Simplex Trading
197
Simplex Trading
Illinois
– – – –
4 5 6 7
8