AI Holders Summary · Q1 2026

434 institutions reported CWST in Q1 2026. BlackRock, Inc. leads at 20.3% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

Hide index funds / market makers / custodians(4 on this page)

#HolderValueShares% port.Quarter

BlackRock, Inc.

CIK 0002012383

$718M9.0M0.01%Q1 2026 02

WASATCH ADVISORS LP

CIK 0000814133

$342M3.5M2.24%Q2 2026 03

Vanguard Portfolio Management

CIK 0002100121· Index

$266M3.4M0.01%Q1 2026 04

Conestoga Capital Advisors, LLC

CIK 0001163744

$223M2.8M4.44%Q1 2026 05

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$222M2.8M0.01%Q1 2026 06

STATE STREET CORP

CIK 0000093751

$190M2.4M0.01%Q1 2026 07

Capital Research Global Investors

CIK 0001422848

$185M2.3M0.03%Q1 2026 08

Capital International Investors

CIK 0001562230

$155M2.0M0.04%Q1 2026 09

T. Rowe Price Investment Management, Inc.

CIK 0001897612

$135M1.7M0.09%Q1 2026 10

Invesco Ltd.

CIK 0000914208

$131M1.7M0.01%Q1 2026 11

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$123M1.6M0.01%Q1 2026 12

JPMORGAN CHASE & CO

CIK 0000019617

$107M1.4M0.01%Q1 2026 13

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC

CIK 0001644956

$100M1.3M0.33%Q1 2026 14

SILVERCREST ASSET MANAGEMENT GROUP LLC

CIK 0001232395

$99M1.3M0.72%Q1 2026 15

WELLINGTON MANAGEMENT GROUP LLP

CIK 0000902219

$96M1.2M0.02%Q1 2026 16

MORGAN STANLEY

CIK 0000895421

$95M1.2M0.01%Q1 2026 17

GENEVA CAPITAL MANAGEMENT LLC

CIK 0001009232

$92M1.2M1.96%Q1 2026 18

Clearbridge Investments, LLC

CIK 0001348883

$91M1.1M0.08%Q1 2026 19

EARNEST PARTNERS LLC

CIK 0001102578

$90M1.1M0.37%Q1 2026 20

DIMENSIONAL FUND ADVISORS LP

CIK 0000354204· Quasi-passive

$85M1.1M0.02%Q1 2026

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