← Super investors
CLH
Clean Harbors Inc
4 super-investor ownerscombined $816Mlargest position 4.0%
2 ADD
Cohort owners over time
2025Q3 → 2026Q1How many of the cohort members held this stock each quarter.
Now: 2
Peak: 2
Owners (4) · click any column to sort
| #↑ | Manager | % Port. | History | Value | Shares |
|---|---|---|---|---|---|
| 1 | Stephen Mandel | 4.0% | 2q | $503M | 1,754,950 |
| 2 | Henry Ellenbogen | 3.1% | 3q | $301M | 1,050,973 |
| 3 | Joel Greenblatt | <0.1% | 32q | $10M | 34,822 |
| 4 | First Eagle Investment Management | <0.1% | 2q | $1M | 3,816 |
Recent activity (2)
| Manager | Move | % Port. | Δ Shares | Value | Filed |
|---|---|---|---|---|---|
| Henry Ellenbogen | ADD | 3.1% | +26% | $301M | May 15, 2026 |
| Stephen Mandel | ADD | 4.0% | +27% | $503M | May 15, 2026 |
Long US equity 13F-HR filings only. CUSIP 184496107. Not investment advice.