Casella Waste Systems Inc (CWST) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

0Shares Outstanding

422,779Shares held by institutions

$33,124,735Value of institutional holdings

102.41%Institutional ownership %

-2.57%Shares Changed QoQ

388No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Casella Waste Systems Inc (NASDAQ:CWST) has 384 institutional investors that have filed 13F reports for the period ending December 2025.

These investors collectively held 121.4% of Casella Waste Systems's outstanding shares in December 2025, up from 107.7% in September 2025.
They increased total shares held in Casella Waste Systems by 18.29% from last quarter, and the number of investors in CWST increased 12.94% annually.
Activity in CWST broke down as 240 buyers, 95 sellers, and 49 unchanged among 384 total holders.
In total, institutional investors held 77.19Mn shares in Casella Waste Systems as of December 2025, up by 11.93Mn shares quarter on quarter, and up 9.22Mn shares year over year.
As of December 31, 2025, the biggest holder of Casella Waste Systems is BlackRock, Inc. at 9.06Mn shares, representing 14.24% of shares outstanding.
Leading buyers of Casella Waste Systems shares for the quarter ending December 2025 were BlackRock, Inc. (4.49Mn), Pictet Asset Management Holding SA (981.62K), NOMURA ASSET MANAGEMENT INTERNATIONAL INC. (943.15K), State Street Corp (871.76K), UBS Group AG (730.13K).
The biggest sellers of Casella Waste Systems for the quarter ending December 2025 included Jpmorgan Chase & Co (1.85Mn), Zimmer Partners, LP (354.81K), WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC (341.66K), Ameriprise Financial Inc (302.55K), Global Alpha Capital Management Ltd. (245.63K).
Business Quant data shows the 10 biggest positions in Casella Waste Systems as of December 2025 are held by BlackRock, Inc. (9.06Mn), VANGUARD GROUP INC (6.57Mn), WASATCH ADVISORS LP (3.77Mn), Conestoga Capital Advisors, LLC (2.78Mn), Invesco Ltd. (2.7Mn), Capital Research Global Investors (2.49Mn), State Street Corp (2.31Mn), Capital International Investors (2.0Mn), T. Rowe Price Investment Management, Inc. (1.97Mn), WESTFIELD CAPITAL MANAGEMENT CO LP (1.67Mn).

384 Institutional Holders

422,779 Total Shares Held

Rows:

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Owner Name	Date	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	4,491,501	98.37%	$0.00
VANGUARD GROUP INC	31 Dec, 2025	581,310	9.70%	$0.00
T. Rowe Price Investment Management, Inc.	31 Dec, 2025	263,907	15.46%	$0.00
Rockefeller Capital Management L.P.	31 Dec, 2025	207,316	122.42%	$0.00
WASATCH ADVISORS LP	31 Dec, 2025	56,914	1.53%	$0.00
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	31 Dec, 2025	-341,661	-18.88%	$0.00
Barclays Plc	31 Dec, 2025	-123,499	-55.55%	$0.00
Conestoga Capital Advisors, LLC	31 Dec, 2025	-98,734	-3.43%	$0.00
Pictet Asset Management Holding SA	31 Dec, 2025	981,617	10,865.81%	$0.00
Invesco Ltd.	31 Dec, 2025	300,102	12.48%	$0.00
UBS Group AG	31 Dec, 2025	730,128	653.25%	$0.00
Capital Research Global Investors	31 Dec, 2025	477,216	23.73%	$0.00
Allspring Global Investments Holdings, LLC	31 Dec, 2025	-14,209	-1.99%	$0.00
State Street Corp	31 Dec, 2025	871,761	60.75%	$0.00
Nuveen, LLC	31 Dec, 2025	39,137	7.94%	$0.00
Capital International Investors	31 Dec, 2025	41,447	2.12%	$0.00
Yaupon Capital Management LP	31 Dec, 2025	192,855	0.00%	$0.00
WESTFIELD CAPITAL MANAGEMENT CO LP	31 Dec, 2025	17,319	1.05%	$0.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	5,510	0.36%	$0.00
Aberdeen Group plc	31 Dec, 2025	82,616	79.15%	$0.00

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