CLH — CLEAN HARBORS INC COMMON

Ownership history in M.D. Sass, LLC · 14 quarters on record

This page tracks every 13F SEC filing in which M.D. Sass, LLC reported a position in CLEAN HARBORS INC COMMON (CLH). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position

6.18% (2025 Q4)

Avg. % of fund

4.05%

First filed

2001 Q4

Last filed

2025 Q4

Quarters held

14

Quarter	Action	Shares	Change	Chg %	% of Fund	Mkt Value	Price (EOQ)
2025 Q4	ADDED	334,198	+74,538	+28.7%	6.18%	$78.4M	$234.48
2025 Q3	REDUCED	259,660	-69,209	-21.0%	4.91%	$60.3M	$232.22
2025 Q2	REDUCED	328,869	-18,466	-5.3%	6.12%	$76.0M	$231.18
2025 Q1	ADDED	347,335	+68,977	+24.8%	6.03%	$68.5M	$197.10

% of Fund (quarterly) CLH price (monthly, adj. close)

Other funds also holding CLH

As of 2025 Q4 — sorted by position size

12th Street Asset Management Company, LLC 3Y 7Y 8.12% AXON CAPITAL LP 7Y 6.22% D1 Capital Partners L.P. 3Y 7Y 6.1% SNYDER CAPITAL MANAGEMENT L P 3Y 7Y 5.03% Palestra Capital Management LLC 3Y 7Y 4.72% ECOFI INVESTISSEMENTS SA 4.47% Bayberry Capital Partners LP 3Y 3.58% Bullseye Asset Management LLC 3Y 3.25% Rivermont Capital Management LP 3Y 2.47% GCM Grosvenor Holdings, LLC 3Y 2.45%

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