Casella Waste Systems CWST Institutional Ownership

NASDAQ CWST

$78.07 -2.28 (-2.84%)

At close: Oct 1, 2026 · 4:00 PM EDT

Institutions by Trading Activity

418 Institutions

Increased 233 55.7%

Unchanged 57 13.6%

Reduced 128 30.6%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

122.73%

▲+6.00 pp QoQ

Shares Held by Institutions

78.07Mn

of 63.61Mn outstanding

▲+8.39% QoQ

Shares Outstanding

63.61Mn

-14.46Mn held outside 13F filers

Institutional Investors

418

filed 13F for Jun 2026

▲+15 vs prior quarter

Net Shares Added (QoQ)

+6.04Mn

accumulated since last quarter

Value of Holdings

$6.27Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Casella Waste Systems Inc (NASDAQ:CWST) has 418 institutional investors that have filed 13F reports for the period ending June 2026.

They owned 122.7% of outstanding stock in June 2026, up from 116.7% the prior quarter.
They increased total shares held in CWST by 8.39% quarter over quarter, and investors in Casella Waste Systems increased 7.18% from a year ago.
Among the 418 funds, 233 bought more Casella Waste Systems shares, 128 sold down, and 57 held their ground.
Altogether, these fund groups held 78.07Mn shares in CWST by June 2026, up by 6.04Mn shares quarter on quarter, and up 14.59Mn shares year over year.
BlackRock, Inc. leads ownership in CWST with 9.39Mn shares as of June 30, 2026, equal to 14.76% of outstanding shares.
Top purchasers of CWST stock for the quarter ending June 2026 included WASATCH ADVISORS LP (949.37K), AMERICAN CENTURY COMPANIES INC (805.86K), Sixth Street Partners Management Company, L.P. (719.45K), Neuberger Berman Group LLC (480.69K), NORGES BANK (476.32K).
The largest sellers of Casella Waste Systems for the quarter ending June 2026 were WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC (988.75K), Conestoga Capital Advisors, LLC (468.32K), Capital Research Global Investors (301.52K), GENEVA CAPITAL MANAGEMENT LLC (251.93K), Goldman Sachs Group Inc (223.8K).
Per Business Quant, the top 10 investors in CWST for the quarter ending June 2026 include BlackRock, Inc. (9.39Mn), WASATCH ADVISORS LP (3.53Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (3.45Mn), VANGUARD CAPITAL MANAGEMENT LLC (2.82Mn), State Street Corp (2.52Mn), Conestoga Capital Advisors, LLC (2.34Mn), T. Rowe Price Investment Management, Inc. (2.08Mn), Capital International Investors (2.05Mn), Capital Research Global Investors (2.03Mn), GEODE CAPITAL MANAGEMENT, LLC (1.65Mn).

Form 13F Holdings

417 Institutional Holders

Report period 30 Jun, 2026

Total shares held 78.07Mn

Of outstanding 122.73%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	9,390,112	14.76%	▲342,840	+3.79%	$910.56Mn
2	WASATCH ADVISORS LP	0000814133	3,531,594	5.55%	▲949,374	+36.77%	$342.46Mn
3	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	3,448,748	5.42%	▲95,507	+2.85%	$334.43Mn
4	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	2,823,033	4.44%	▲24,106	+0.86%	$273.75Mn
5	State Street Corp	0000093751	2,520,170	3.96%	▲130,973	+5.48%	$244.36Mn
6	Conestoga Capital Advisors, LLC	0001163744	2,336,156	3.67%	▼468,319	-16.70%	$226.54Mn
7	T. Rowe Price Investment Management, Inc.	0001897612	2,078,022	3.27%	▲378,532	+22.27%	$201.51K
8	Capital International Investors	0001562230	2,054,399	3.23%	▲101,579	+5.20%	$199.22Mn
9	Capital Research Global Investors	0001422848	2,028,646	3.19%	▼301,519	-12.94%	$196.72Mn
10	GEODE CAPITAL MANAGEMENT, LLC	0001214717	1,647,147	2.59%	▲93,984	+6.05%	$159.75Mn
11	Jpmorgan Chase & Co	0000019617	1,544,116	2.43%	▲185,242	+13.63%	$145.85Mn
12	Invesco Ltd.	0000914208	1,459,009	2.29%	▼194,429	-11.76%	$141.48Mn
13	Neuberger Berman Group LLC	0001465109	1,434,463	2.25%	▲480,686	+50.40%	$139.10Mn
14	EARNEST PARTNERS LLC	0001102578	1,399,698	2.20%	▲266,621	+23.53%	$135.73Mn
15	WELLINGTON MANAGEMENT GROUP LLP	0000902219	1,292,101	2.03%	▲80,299	+6.63%	$125.30Mn
16	Clearbridge Investments, LLC	0001348883	1,219,835	1.92%	▲78,106	+6.84%	$118.29Mn
17	Morgan Stanley	0000895421	1,213,469	1.91%	▲18,175	+1.52%	$117.67Mn
18	DIMENSIONAL FUND ADVISORS LP	0000354204	1,184,196	1.86%	▲117,064	+10.97%	$114.82Mn
19	SILVERCREST ASSET MANAGEMENT GROUP LLC	0001232395	1,181,941	1.86%	▼70,101	-5.60%	$114.61Mn
20	Pictet Asset Management Holding SA	0001993888	1,052,330	1.65%	▲127,955	+13.84%	$102.03Mn

Showing 1 to 20 of 417 holders