T. Rowe Price Investment Management, Inc.

Position in CWST — Casella Waste Systems Inc

CIK 1897612 BALTIMORE, MD

Position in CWST

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$201,505,793

+$66,668,257 QoQ

Shares Held

2,078,022

+22.3% QoQ

Ownership

3.27%

of shares outstanding

% of Portfolio

0.13%

of 13F equity value

Holder Rank

#7

of 415 holders

Holding Since

Jun 2023

13 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Industrials · as of Jun 30, 2026

T. Rowe Price Investment Management, Inc. holds $527,216,288 across 5 Waste Management names. CWST ranks #1 (38.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	CWST	Casella Waste Systems Inc This page	2,078,022	$201,505,793
2	WCN	Waste Connections, Inc.	1,001,908	$167,008,044
3	CLH	Clean Harbors Inc	441,280	$131,832,400
4	RSG	Republic Services, Inc.	102,971	$21,941,060
5	WM	Waste Management Inc	22,115	$4,928,991

13 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$201,505,793	2,078,022	+22.3%	Shares	Sole	2026-08-14
2026-03-31	$134,837,536	1,699,490	+545.3%	Shares	Sole	2026-05-15
2025-12-31	$25,795,731	263,383	-84.6%	Shares	Sole	2026-02-17
2025-09-30	$161,979,041	1,707,199	+63.1%	Shares	Sole	2025-11-14
2025-06-30	$120,756,823	1,046,601	-26.3%	Shares	Sole	2025-08-14
2025-03-31	$158,321,786	1,419,799	+13.0%	Shares	Sole	2025-05-14
2024-12-31	$132,943,493	1,256,436	-4.3%	Shares	Sole	2025-02-14
2024-09-30	$130,568,089	1,312,374	-10.4%	Shares	Sole	2024-11-14
2024-06-30	$145,273,359	1,464,154	-27.6%	Shares	Sole	2024-08-14
2024-03-31	$199,981,382	2,022,670	+7.3%	Shares	Sole	2024-05-15
2023-12-31	$161,024,842	1,884,213	+13.8%	Shares	Sole	2024-02-14
2023-09-30	$126,346,238	1,655,914	+88.2%	Shares	Sole	2023-11-14
2023-06-30	$79,586,683	879,897	—	Shares	Sole	2023-08-14
No filing history on record for this holder in this stock.