WELLINGTON MANAGEMENT GROUP LLP

Position in CLH — Clean Harbors Inc

CIK 902219 Boston, MA

Back to CLH Full portfolio

Position in CLH

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$1,025,642,954

-$189,558,553 QoQ

Shares Held

3,577,034

-31.0% QoQ

Ownership

6.77%

of shares outstanding

% of Portfolio

0.19%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 0.ToString("F0")% Shared 84.36159678661149.ToString("F0")% None 15.638403213388521.ToString("F0")%

Common Shares in CLH Over Time

Shares Held

Position Value (USD)

Position in Waste Management

Industrials · as of Mar 31, 2026

WELLINGTON MANAGEMENT GROUP LLP holds $3,019,825,774 across 6 Waste Management names. CLH ranks #1 (34.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	CLH	Clean Harbors Inc This page	3,577,034	$1,025,642,954
2	RSG	Republic Services, Inc.	4,379,806	$959,265,107
3	WCN	Waste Connections, Inc.	4,935,243	$801,680,869
4	GFL	GFL Environmental Inc.	2,661,097	$111,020,964
5	CWST	Casella Waste Systems Inc	1,211,802	$96,144,368
6	WM	Waste Management Inc	113,458	$26,071,512

All Filings in CLH

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25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$1,025,642,954	3,577,034	-31.0%	Shares	Defined	2026-05-15
2025-12-31	$1,215,201,507	5,182,538	-7.0%	Shares	Defined	2026-02-17
2025-09-30	$1,294,429,572	5,574,152	-3.3%	Shares	Defined	2025-11-14
2025-06-30	$1,332,753,852	5,765,005	+8.9%	Shares	Defined	2025-08-14
2025-03-31	$1,043,407,188	5,293,796	+30.9%	Shares	Defined	2025-05-13
2024-12-31	$930,707,328	4,044,092	+17.2%	Shares	Defined	2025-02-12
2024-09-30	$834,322,730	3,451,751	+3.0%	Shares	Defined	2024-11-14
2024-06-30	$757,909,382	3,351,357	-10.4%	Shares	Defined	2024-08-14
2024-03-31	$752,749,419	3,739,255	+2.3%	Shares	Defined	2024-05-15
2023-12-31	$637,821,656	3,654,929	+5.3%	Shares	Defined	2024-02-12
2023-09-30	$581,125,296	3,472,307	-9.2%	Shares	Defined	2023-11-14
2023-06-30	$628,561,788	3,822,671	-3.9%	Shares	Defined	2023-08-14
2023-03-31	$567,082,720	3,977,853	-22.7%	Shares	Defined	2023-05-12
2022-12-31	$587,535,291	5,148,399	+2.5%	Shares	Defined	2023-02-13
2022-09-30	$552,312,846	5,021,939	-17.9%	Shares	Defined	2022-11-14
2022-06-30	$536,519,356	6,119,760	+0.1%	Shares	Defined	2022-08-15
2022-03-31	$682,288,636	6,111,507	-9.6%	Shares	Defined	2022-05-16
2021-12-31	$674,489,993	6,760,449	+3.7%	Shares	Defined	2022-02-11
2021-09-30	$677,333,878	6,520,977	-8.8%	Shares	Defined	2021-11-15
2021-06-30	$665,957,236	7,150,067	-0.2%	Shares	Defined	2021-08-16
2021-03-31	$602,247,531	7,164,496	+5.2%	Shares	Defined	2021-05-17
2020-12-31	$518,227,907	6,809,828	+9.3%	Shares	Defined	2021-02-12
2020-09-30	$348,983,131	6,228,505	+0.4%	Shares	Defined	2020-11-16
2020-06-30	$372,019,350	6,202,390	-8.8%	Shares	Defined	2020-08-14
2020-03-31	$349,099,522	6,799,757	—	Shares	Defined	2020-05-14
No filing history on record for this holder in this stock.