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Ceco Environmental
CECO

179 hedge funds and large institutions have $836M invested in Ceco Environmental in 2025 Q2 according to their latest regulatory filings, with 28 funds opening new positions, 66 increasing their positions, 52 reducing their positions, and 17 closing their positions.

New
Increased
Maintained
Reduced
Closed

854% more call options, than puts

Call options by funds: $1.91M | Put options by funds: $200K

100% more funds holding in top 10

Funds holding in top 10: 1 → 2 (+1)

65% more first-time investments, than exits

New positions opened: 28 | Existing positions closed: 17

27% more repeat investments, than reductions

Existing positions increased: 66 | Existing positions reduced: 52

26% more capital invested

Capital invested by funds: $663M → $836M (+$174M)

5% more funds holding

Funds holding: 171 → 179 (+8)

0.7% more ownership

Funds ownership: 83.06% → 83.76% (+0.7%)

Holders
179
Holders Change
+8
Holders Change %
+4.68%
% 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
66
Reduced
52
Closed
17
Calls
$1.91M
Puts
$200K
Net Calls
+$1.71M
Net Calls Change
+$349K

Top Buyers

Rank Fund Capital Flow
1
Wellington Management Group
Wellington Management Group
Massachusetts
+$8.96M
2
Janus Henderson Group
Janus Henderson Group
United Kingdom
+$7.48M
3
SBH
Segall Bryant & Hamill
Illinois
+$6.5M
4
OCM
Osterweis Capital Management
California
+$6.31M
5
CA
CSM Advisors
Pennsylvania
+$4.62M

Top Sellers

Rank Fund Capital Flow
1
AAM
ACK Asset Management
Connecticut
-$27.4M
2
Allspring Global Investments
Allspring Global Investments
North Carolina
-$2.35M
3
Squarepoint
Squarepoint
New York
-$1.69M
4
MHP
Manatuck Hill Partners
Connecticut
-$1.67M
5
RS
Robeco Schweiz
Switzerland
-$1.64M
Name Holding Trade Value Shares
Change 		Change in
Stake
AACP
26
Advantage Alpha Capital Partners
California
$7.35M -$182K -7,326 -3%
Northern Trust
27
Northern Trust
Illinois
$7.24M -$445K -17,890 -7%
OCM
28
Osterweis Capital Management
California
$7.17M +$6.31M +253,440 New
Charles Schwab
29
Charles Schwab
California
$6.76M +$157K +6,303 +3%
SAM
30
Silvercrest Asset Management
New York
$6M +$270K +10,857 +5%
KCM
31
Kennedy Capital Management
Missouri
$5.76M +$366K +14,694 +8%
Amundi
32
Amundi
France
$5.73M +$373K +14,975 +8%
CA
33
CSM Advisors
Pennsylvania
$5.25M +$4.62M +185,435 New
Morgan Stanley
34
Morgan Stanley
New York
$4.4M +$333K +13,366 +9%
EIM
35
Essex Investment Management
Massachusetts
$4.32M -$27.5K -1,103 -0.7%
Russell Investments Group
36
Russell Investments Group
United Kingdom
$4.11M +$138K +5,545 +4%
GLA
37
Great Lakes Advisors
Illinois
$3.7M -$88.5K -3,553 -3%
Citadel Advisors
38
Citadel Advisors
Florida
$3.54M +$2.85M +114,406 +1,063%
VanEck Associates
39
VanEck Associates
New York
$3.5M +$1.4M +56,258 +83%
Wells Fargo
40
Wells Fargo
California
$3.45M +$35.4K +1,423 +1%
GIPM
41
G2 Investment Partners Management
New York
$3.4M +$2.99M +120,000 New
PC
42
Pier Capital
Connecticut
$3.23M +$2.84M +113,946 New
UBS AM
43
UBS AM
Illinois
$3.12M +$429K +17,224 +18%
EEL
44
Expect Equity LLC
Maryland
$3.06M – – –
Millennium Management
45
Millennium Management
New York
$2.97M +$1.23M +49,588 +90%
MCM
46
Marathon Capital Management
Maryland
$2.94M +$148K +5,955 +6%
FG
47
Formula Growth
Quebec, Canada
$2.89M -$855K -34,333 -25%
Macquarie Group
48
Macquarie Group
Australia
$2.35M +$332K +13,313 +19%
Bank of New York Mellon
49
Bank of New York Mellon
New York
$2.33M -$229K -9,197 -10%
Bank of America
50
Bank of America
North Carolina
$2.18M +$27.3K +1,097 +1%
1
2
3 4 5

CECO Hedge Fund Activity: Q2 2025 in Review

179 of the 7,596 institutional investors tracked by Wall St. Rank reported a position in Ceco Environmental (CECO) for Q2 2025, worth a combined $836M — up 26% from $663M a quarter earlier.

Buyers outnumbered sellers: 28 funds opened new CECO positions and 17 closed out — a net gain of 11 holders — while 66 added to existing stakes and 52 trimmed.

The largest buyer was Wellington Management Group, adding an estimated $8.96M. The largest seller was ACK Asset Management, exiting entirely with an estimated $27.4M sold.

  • 179 institutional investors held Ceco Environmental (CECO) as of Q2 2025, up from 171 in Q1 2025.
  • Funds reported $836M of Ceco Environmental stock for Q2 2025, up 26% quarter-over-quarter.
  • 28 funds opened new Ceco Environmental positions in Q2 2025 and 17 closed out, a net change of +11 holders.
  • The largest Ceco Environmental buyer in Q2 2025 was Wellington Management Group, an estimated $8.96M added.
  • The largest Ceco Environmental seller in Q2 2025 was ACK Asset Management, an estimated $27.4M sold.

Based on aggregated 13F filings for Q2 2025.