Casella Waste Systems, Inc. (CWST)Boston Trust Walden Corp reduced its stake -12K shares

373K

Shares reported · -12K vs prior quarter

0.28%

Disclosed portfolio weight

$36.1M

Reported value

Holdings as of

Jun 30, 2026

Filed

Jul 24, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Dec 4, 2025Federal contract · $41K obligatedDepartment of Justice awarded CASELLA WASTE SYSTEMS INC: $41K obligated to date
2. May 26, 2026InsiderDirector sold ~$202K of CWST shares in the open market
3. May 27, 2026Federal contract · $5K obligatedDepartment of Homeland Security awarded CASELLA WASTE SYSTEMS INC: $4.5K obligated to date
4. Jun 26, 2026Company filing · Form 8-K · Executive changeChanged a top executive or board member“On June 26, 2026, the Board of Directors (the “Board”) of Casella Waste Systems, Inc. (the “Company”) appointed Damian A. Ribar as Executive Vice President and Chief Operating Officer of the Company, effective as of the date of commencement of his employment, which is expected to be July 20, 2026.”
5. Jun 26, 2026Company filing · Form 8-K · Executive changeChanged a top executive or board member“As previously reported on the Current Report on Form 8-K filed by Casella Waste Systems, Inc. (the “Company”) on July 1, 2026 (the “Original 8-K”), the Company announced the appointment of Damian A. Ribar as Executive Vice President and Chief Operating Officer of the Company, effective as of July 20, 2026, which is the date of commencement of his employment with the Company.”

What came next

1. Aug 6, 2026Company filing · Form 8-K · ResultsReported its results
2. Aug 13, 2026Federal contract · $28K obligatedDepartment of the Interior awarded CASELLA WASTE SYSTEMS INC: $28K obligated to date
3. Aug 13, 2026Insider · 1 personInsiders: 2 sales (~$1.4M)
4. Aug 14, 2026InsiderChair sold ~$122K of CWST shares in the open market
5. Aug 26, 2026InsiderDirector sold ~$102K of CWST shares in the open market
6. Sep 3, 2026InsiderDirector sold ~$105K of CWST shares in the open market
7. Oct 9, 20265% stakeWasatch Advisors LP reported a passive stake (13G) of 4.9%

How to read SEC Form 13F-HR

Form 13F is the quarterly report in which investment managers that oversee $100 million or more list the US-listed stocks and some other securities they held on the last day of the quarter.

Full guide: What is an SEC Form 13F?

What else is on file for Casella Waste Systems, Inc.

For Casella Waste Systems, Inc., OQRO holds 5 insider filings (SEC Form 4 or Form 144), 13 fund holdings reports (13F) and 2 federal contract awards dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its CWST page.

How this filing works

• SEC Form 13F

Other disclosures at Casella Waste Systems, Inc.

• SEC Schedule 13GOct 9, 2026
• SEC Form 4Sep 3, 2026
• USAspending.gov award recordSep 3, 2026
• SEC Form 4Aug 26, 2026
• SEC Form 4Aug 14, 2026
• SEC Form 4Aug 14, 2026

Everything OQRO holds on this company is on its CWST page.