Clean Harbors
565 hedge funds and large institutions have $9.6B invested in Clean Harbors in 2025 Q1 according to their latest regulatory filings, with 87 funds opening new positions, 196 increasing their positions, 202 reducing their positions, and 89 closing their positions.
0% more funds holding in top 10
Funds holding in top 10: 15 → 15 (0)
0.54% less ownership
Funds ownership: 91.29% → 90.75% (-0.54%)
2% less first-time investments, than exits
New positions opened: 87 | Existing positions closed: 89
3% less repeat investments, than reductions
Existing positions increased: 196 | Existing positions reduced: 202
6% less capital inflows, than outflows
Capital inflows: $1.37B | Capital outflows: $1.45B
2% less funds holding
Funds holding: 574 → 565 (-9)
34% less call options, than puts
Call options by funds: $30.4M | Put options by funds: $46.2M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Wellington Management Group
Boston,
Massachusetts
|
+$273M |
| 2 |
Janus Henderson Group
London,
|
+$115M |
| 3 |
UBS AM
Chicago,
Illinois
|
+$110M |
| 4 |
Millennium Management
New York
|
+$79.4M |
| 5 |
D1 Capital Partners
New York
|
+$42.2M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Fidelity Investments
Boston,
Massachusetts
|
-$227M |
| 2 |
Invesco
Atlanta,
Georgia
|
-$191M |
| 3 |
Select Equity Group
New York
|
-$144M |
| 4 |
Zurich Insurance Group
Zurich,
Switzerland
|
-$120M |
| 5 |
Munro Partners
Melbourne,
Australia
|
-$60M |
CLH Hedge Fund Activity: Q1 2025 in Review
565 of the 7,487 institutional investors tracked by Wall St. Rank reported a position in Clean Harbors (CLH) for Q1 2025, worth a combined $9.6B — down 15% from $11.3B a quarter earlier.
Sellers outnumbered buyers: 89 funds closed out of CLH and 87 opened new positions — a net loss of 2 holders — while 202 trimmed existing stakes and 196 added.
The largest buyer was Wellington Management Group, adding an estimated $273M. The largest seller was Fidelity Investments, cutting an estimated $227M.
- 565 institutional investors held Clean Harbors (CLH) as of Q1 2025, down from 574 in Q4 2024.
- Funds reported $9.6B of Clean Harbors stock for Q1 2025, down 15% quarter-over-quarter.
- 87 funds opened new Clean Harbors positions in Q1 2025 and 89 closed out, a net change of -2 holders.
- The largest Clean Harbors buyer in Q1 2025 was Wellington Management Group, an estimated $273M added.
- The largest Clean Harbors seller in Q1 2025 was Fidelity Investments, an estimated $227M sold.
Based on aggregated 13F filings for Q1 2025.