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.
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%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Wellington Management Group
Boston,
Massachusetts
|
+$8.96M |
| 2 |
Janus Henderson Group
London,
|
+$7.48M |
| 3 |
SBH
Segall Bryant & Hamill
Chicago,
Illinois
|
+$6.5M |
| 4 |
OCM
Osterweis Capital Management
San Francisco,
California
|
+$6.31M |
| 5 |
CA
CSM Advisors
Warrendale,
Pennsylvania
|
+$4.62M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
AAM
ACK Asset Management
Greenwich,
Connecticut
|
-$27.4M |
| 2 |
Allspring Global Investments
Charlotte,
North Carolina
|
-$2.35M |
| 3 |
Squarepoint
New York
|
-$1.69M |
| 4 |
MHP
Manatuck Hill Partners
Westport,
Connecticut
|
-$1.67M |
| 5 |
RS
Robeco Schweiz
Zurich,
Switzerland
|
-$1.64M |
CECO Hedge Fund Activity: Q2 2025 in Review
179 of the 7,613 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.