Casella Waste Systems CWST Institutional Ownership

NASDAQ CWST

$96.89 +6.67 (+7.39%)

At close: Oct 22, 2026 · 4:00 PM EDT

Institutions by Trading Activity

415 Institutions

Increased 231 55.7%

Unchanged 57 13.7%

Reduced 127 30.6%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

—

13F totals exceed reported shares outstanding

Shares Held by Institutions

77.28Mn

of 63.64Mn outstanding

▲+4.19% QoQ

Shares Outstanding

63.64Mn

Institutional Investors

415

filed 13F for Jun 2026

▲+12 vs prior quarter

Net Shares Added (QoQ)

+3.11Mn

accumulated since last quarter

Value of Holdings

$7.49Bn

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

Updated Oct 11, 2026

Casella Waste Systems Inc (NASDAQ:CWST) counted 415 institutional investors among its 13F-reported shareholders for the quarter ended June 30, 2026.

Total shares held in Casella Waste Systems rose 4.19% versus Q1 2026, while the number of holders rose 6.96% versus Q2 2025.
Of these 415 holders, 231 added to their positions, 127 reduced their stakes and 57 left their positions unchanged.
Combined, institutional investors held 77.28Mn shares of CWST as of Q2 2026, up 3.11Mn from the prior quarter and up 13.8Mn from a year earlier.
BlackRock, Inc. led 13F holders of CWST with 9.39Mn shares as of June 30, 2026.
The biggest increases in CWST positions during Q2 2026 came from Wasatch Advisors LP (+949.37K shares), American Century Companies Inc (+805.86K shares), Neuberger Berman Group LLC (+480.69K shares), Citadel Advisors LLC (+420.84K shares) and T. Rowe Price Investment Management, Inc. (+378.53K shares).
On the other side, among holders that kept a position in Casella Waste Systems, the largest reductions in Q2 2026 came from William Blair Investment Management, LLC (-988.75K shares), Conestoga Capital Advisors, LLC (-468.32K shares), Capital Research Global Investors (-301.52K shares), Geneva Capital Management LLC (-251.93K shares) and Goldman Sachs Group Inc (-223.8K shares).
According to Business Quant data, the leading holders of CWST for Q2 2026 were BlackRock, Inc. (9.39Mn shares), Wasatch Advisors LP (3.53Mn shares), Vanguard Portfolio Management LLC (3.45Mn shares), Vanguard Capital Management LLC (2.82Mn shares), State Street Corp (2.52Mn shares), Conestoga Capital Advisors, LLC (2.34Mn shares), T. Rowe Price Investment Management, Inc. (2.08Mn shares), Capital International Investors (2.05Mn shares), Capital Research Global Investors (2.03Mn shares) and Geode Capital Management, LLC (1.65Mn shares).

Form 13F Holdings

416 Institutional Holders

Report period 30 Jun, 2026

Total shares held 77.28Mn

Of outstanding —

#	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 416 holders