Clean Harbors
625 hedge funds and large institutions have $14.1B invested in Clean Harbors in 2026 Q1 according to their latest regulatory filings, with 116 funds opening new positions, 210 increasing their positions, 196 reducing their positions, and 50 closing their positions.
199% more call options, than puts
Call options by funds: $24M | Put options by funds: $8.03M
132% more first-time investments, than exits
New positions opened: 116 | Existing positions closed: 50
75% more funds holding in top 10
Funds holding in top 10: 12 → 21 (+9)
17% more capital invested
Capital invested by funds: $12.1B → $14.1B (+$2.07B)
10% more funds holding
Funds holding: 566 → 625 (+59)
7% more repeat investments, than reductions
Existing positions increased: 210 | Existing positions reduced: 196
3.03% less ownership
Funds ownership: 96.27% → 93.24% (-3%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Fidelity Investments
Boston,
Massachusetts
|
+$472M |
| 2 |
Goldman Sachs
New York
|
+$183M |
| 3 |
T. Rowe Price Investment Management
Baltimore,
Maryland
|
+$121M |
| 4 |
LPC
Lone Pine Capital
Greenwich,
Connecticut
|
+$103M |
| 5 |
Select Equity Group
New York
|
+$77M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Wellington Management Group
Boston,
Massachusetts
|
-$438M |
| 2 |
DCP
D1 Capital Partners
New York
|
-$394M |
| 3 |
Pictet Asset Management
Carouge,
Switzerland
|
-$176M |
| 4 |
PCM
Palestra Capital Management
New York
|
-$134M |
| 5 |
Nordea Investment Management
Stockholm,
Sweden
|
-$129M |
CLH Hedge Fund Activity: Q1 2026 in Review
625 of the 8,186 institutional investors tracked by Wall St. Rank reported a position in Clean Harbors (CLH) for Q1 2026, worth a combined $14.1B — up 17% from $12.1B a quarter earlier.
Buyers outnumbered sellers: 116 funds opened new CLH positions and 50 closed out — a net gain of 66 holders — while 210 added to existing stakes and 196 trimmed.
The largest buyer was Fidelity Investments, adding an estimated $472M. The largest seller was Wellington Management Group, cutting an estimated $438M.
- 625 institutional investors held Clean Harbors (CLH) as of Q1 2026, up from 566 in Q4 2025.
- Funds reported $14.1B of Clean Harbors stock for Q1 2026, up 17% quarter-over-quarter.
- 116 funds opened new Clean Harbors positions in Q1 2026 and 50 closed out, a net change of +66 holders.
- The largest Clean Harbors buyer in Q1 2026 was Fidelity Investments, an estimated $472M added.
- The largest Clean Harbors seller in Q1 2026 was Wellington Management Group, an estimated $438M sold.
Based on aggregated 13F filings for Q1 2026.