Who owns CLH? 13F holders and whale ownership
CLH is tracked across public portfolios in Whale Analyzer. This page answers who owns CLH, which top funds are buying CLH, aggregate disclosed value, and recent position changes based on public data. Stephen Mandel is the largest reported holder at $503M; the top five funds control 100.0% of reported ownership; institutions were net selling last quarter (1 increased, 1 reduced); the stock trades above the aggregate whale cost basis of $213.1. Top tracked holders include Stephen Mandel and Dan Sundheim.
Continue to the live CLH dashboardTop holders
| Investor | Reported value | Shares | Change |
|---|---|---|---|
| Stephen Mandel 13F portfolio Lone Pine Capital holdings | $503.2M | 1.8M | Increased |
| Dan Sundheim 13F portfolio D1 Capital Partners holdings | $383.7M | 1.3M | Reduced |
Ownership concentration
Reported ownership of CLH is highly concentrated across tracked institutions.
- Single largest holder: 56.7% of reported ownership
- Top 5 holders: 100.0%
- Top 10 holders: 100.0%
Whale activity this quarter
Across 2 tracked institutions, 1 increased, 1 reduced. Net positioning is net selling.
- Stephen Mandel — Lone Pine Capital ($503.2M) (▲ 27.3% qoq shares) · avg cost $271.24
- Dan Sundheim — D1 Capital Partners ($383.7M) (▼ 51.9% qoq shares) · avg cost $136.85
Whale cost basis vs current price
The aggregate tracked cost basis is $213.10 versus a current price of $301.65, so CLH trades above its cost basis (+41.6%). Average unrealized P&L across tracked holders: 60%.
Sector positioning — Industrials
CLH sits within the Industrials sector alongside 85 other tracked names. Compare whale ownership across peers:
How to use this page
Values are reported public positions from tracked 13F filers and disclosures — not real-time ownership totals. Open the live CLH dashboard for price charts and cross-investor scans, or read the SEC 13F guide.
Related stock holder pages
- VST whale holders — VISTRA CORP
- ASML whale holders — ASML HLDG NV
- CRS whale holders — CARPENTER TECHNOLOGY CORP
- LPLA whale holders — LPL FINL HLDGS INC
- APP whale holders — APPLOVIN CORP
- TLN whale holders — TALEN ENERGY CORP
- TER whale holders — TERADYNE INC
- CVNA whale holders — CARVANA CO
Learn more in Whale Analyzer Academy
Deepen your read on CLH with these Whale Analyzer Academy guides:
Frequently asked questions
Who owns CLH stock?
Whale Analyzer tracks 2 public institutional holders of CLH with a combined reported value of $886.9M. See the holder table above for the largest tracked positions.
Which top funds are buying CLH?
Tracked institutions were net selling last quarter — 1 increased, 1 reduced. Check the "Change" column: "New" = fresh position, "Increased" = added, "Reduced" = trimmed.
How concentrated is CLH ownership?
The top five tracked holders report 100.0% of aggregate ownership.
Is CLH above or below the whale cost basis?
The aggregate tracked cost basis is $213.10 versus a current price of $301.65 (+41.6%).
What does 13F ownership mean for CLH?
Use the interactive CLH dashboard on Whale Analyzer for real-time holder analysis, or read our 13F Alpha Signals Guide.