Steve Mandel's CLH Position Overview
Steve Mandel (via Lone Pine Capital LLC) currently holds 1.75 M shares of Clean Harbors, Inc. (CLH) worth $503.2 M, representing 4.01% of the portfolio. First purchased in 2025-Q4, this recently established position has been held for 2 quarters.
Based on recent 13F filings, Steve Mandel has initiated a new position in CLH, representing a fresh investment thesis on this company. Largest addition occurred in Q1 2026, adding 376,825 shares.
Analysis based on 13F filings available since 2013 Q2
Steve Mandel's Clean Harbors (CLH) Holding Value Over Time
Track share changes against reported price movement
Quarterly Clean Harbors (CLH) Trades by Steve Mandel
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2026 | +376,825 | Add 27.34% | 1.75 M | $286.73 |
| Q4 2025 | +1.38 M | New Buy | 1.38 M | $234.48 |
Steve Mandel's Clean Harbors Investment FAQs
Steve Mandel first purchased Clean Harbors, Inc. (CLH) in Q4 2025, acquiring 1,378,125 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Steve Mandel has held Clean Harbors, Inc. (CLH) for 2 quarters since Q4 2025.
Steve Mandel's largest addition to Clean Harbors, Inc. (CLH) was in Q4 2025, adding 1,378,125 shares worth $323.14 M.
According to the latest 13F filing for Q1 2026, Steve Mandel's firm, Lone Pine Capital LLC, owns 1,754,950 shares of Clean Harbors, Inc. (CLH), valued at approximately $503.2 M.
As of the Q1 2026 filing, Clean Harbors, Inc. (CLH) represents approximately 4.01% of Steve Mandel's publicly disclosed stock portfolio, making it one of their key holdings.
Steve Mandel's peak holding in Clean Harbors, Inc. (CLH) was 1,754,950 shares, as reported at the end of Q1 2026.