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Knollwood Investment Advisory, LLC

Position in CLH — Clean Harbors Inc

CIK 1999346 HUNT VALLEY, MD

Position in CLH

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$1,344,375
+$54,090 QoQ
Shares Held
4,500
0.0% QoQ
Ownership
0.009%
of shares outstanding
% of Portfolio
0.13%
of 13F equity value
Holder Rank
#295
of 655 holders
Holding Since
Jun 2024
9 quarters on record
Voting authority Sole 0% Shared 0% None 100%

Common Shares in CLH Over Time

Shares Held

Position Value (USD)

Position in Waste Management

Industrials · as of Jun 30, 2026

Knollwood Investment Advisory, LLC holds $5,063,126 across 3 Waste Management names. CLH ranks #3 (26.6% of the industry book) .

# Ticker Company Shares Value (USD) Open
3 CLH
Clean Harbors Inc
This page
4,500 $1,344,375

All Filings in CLH

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9 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $1,344,375 4,500
2026-03-31 $1,290,285 4,500
2025-12-31 $1,055,160 4,500
2025-09-30 $1,044,990 4,500
2025-06-30 $1,040,310 4,500
2025-03-31 $886,950 4,500
2024-12-31 $1,035,630 4,500
2024-09-30 $1,087,695 4,500
2024-06-30 $1,017,675 4,500