CLH
Clean Harbors Inc
3 of the 83 super-investors we track hold CLH, worth a combined $362M per their latest 13F filings. The largest position: Henry Ellenbogen at 2.6% of their portfolio. This quarter the cohort logged 0 buys and 1 sell on the name. Conviction score: 18 of 100 (how strongly the cohort backs it) — ranked #678 of 742 stocks. Conviction easing: 1 fewer super-investor hold it than in 2026Q1.
Why super-investors own CLH
CLH is held by 3 super-investors in our cohort, with a combined position value of $362M. The highest-conviction owner is Henry Ellenbogen at 2.6% of their portfolio. Cohort ownership has grown from 1 to 3 over the last four quarters — net interest is rising. This quarter the cohort registered 1 exited.
AI-synthesized from 13F filings. Not investment advice.
Cohort owners over time
2016Q3 → 2026Q2How many of the cohort members held this stock each quarter.
Owners (3) · click any column to sort
| #↑ | Manager | % Port. | History | Value | Shares |
|---|---|---|---|---|---|
| 1 | Henry Ellenbogen | 2.6% | 4q | $267M | 892,405 |
| 2 | Joel Greenblatt | 0.1% | 33q | $94M | 314,347 |
| 3 | First Eagle Investment Management | <0.1% | 3q | $1M | 3,874 |
Owners of CLH also hold
Congress is trading CLH
Congress tracker →- April McClain Delaneysold$1,001 - $15,000 · 2026-07-28
- April McClain Delaneysold$1,001 - $15,000 · 2026-07-27
- April McClain Delaneysold$1,001 - $15,000 · 2026-07-24
- April McClain Delaneysold$1,001 - $15,000 · 2026-05-01
- April McClain Delaneysold$1,001 - $15,000 · 2026-04-30
- April McClain Delaneybought$15,001 - $50,000 · 2026-02-23
STOCK Act periodic transaction reports; amounts are disclosed ranges. Who files late →
Recent activity (1)
| Manager | Move | % Port. | Δ Shares | Value | Filed |
|---|---|---|---|---|---|
| Stephen Mandel | EXIT | 4.0% | -100% | $0 | Aug 14, 2026 |
Long US equity 13F-HR filings only. CUSIP 184496107. Not investment advice.