D1 Capital Partners L.P.

Holdings History for CLEAN HARBORS INC - Common Stock, par value $0.01 per share (CLH)

Symbol: CLH on NYSE
Investment type: Equity / Common Stock, par value $0.01 per share
Latest Disclosed Shares Owned: 2,781,882 shares
Security Ownership %: 5.2%

Shares, Excluding Options vs Price

Value, Excluding Options

D1 Capital Partners L.P. ownership in CLEAN HARBORS INC Common Stock, par value $0.01 per share (CLH)

17 Feb 2026 - D1 Capital Partners L.P. has filed an SCHEDULE 13G form with the Securities and Exchange Commission (SEC) disclosing ownership of 2,781,882 shares of CLEAN HARBORS INC Common Stock, par value $0.01 per share (CLH). This represents 5.2% ownership of the company. This is the first filing by D1 Capital Partners L.P. disclosing ownership of CLEAN HARBORS INC Common Stock, par value $0.01 per share (CLH).

Reporting Name	Ownership %	Change	Value $	Shares owned	Change	Activity %	Price	Form	Report date	Filing time
D1 Capital Partners L.P.	5.2%		$706,820,579	2,781,882			$254.08	13G	31 Dec 2025	17 Feb 2026, 12:08

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
31 Dec 2025	6.1%	+0.74%	$652,295,691	2,781,882	+336,299	+14%	$234.48	Q4 2025
30 Sep 2025	6.5%	+2.7%	$567,913,284	2,445,583	+1,001,946	+69%	$232.22	Q3 2025
30 Jun 2025	4.6%	+4%	$333,740,002	1,443,637	+1,250,615	+648%	$231.18	Q2 2025
31 Mar 2025	0.58%	+0.58%	$38,044,636	193,022	+193,022	NEW	$197.10	Q1 2025

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.