Damian A. Ribar was named Chief Operating Officer of Casella Waste Systems Inc. As of November 6, 2026, Casella Waste Systems Inc has reported 2 leadership change filings to the SEC under Item 5.02 of Form 8-K, from July 1, 2026 to July 20, 2026, naming 1 appointment (Form 8-K, July 1, 2026).
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Casella Waste Systems Inc reported changes in 2 filings among its directors and officers to the SEC on Form 8-K, Item 5.02, from 2026-07-01 to 2026-07-20. They name 1 person. Every row below is cited to the filing it comes from, and this page adds each new change as Casella Waste Systems Inc files it.
Also on the record for Casella Waste Systems Inc
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| October 9, 2026 | Stake report, Schedule 13G/A, by Wasatch Advisors LP | 4.9% of the class | 5%+ stakes | Source |
| July 9, 2026 | Stake report, Schedule 13G, by Wasatch Advisors LP | 5.6% of the class | 5%+ stakes | Source |
| April 29, 2026 | Stake report, Schedule 13G, by Vanguard Capital Management | 5.23% of the class | 5%+ stakes | Source |
| April 29, 2026 | Stake report, Schedule 13G, by Vanguard Portfolio Management | 5.45% of the class | 5%+ stakes | Source |
| April 22, 2026 | Stake report, Schedule 13G/A, by Wasatch Advisors LP | 4.1% of the class | 5%+ stakes | Source |
| March 26, 2026 | Stake report, Schedule 13G/A, by The Vanguard Group | — | 5%+ stakes | Source |
| January 8, 2026 | Stake report, Schedule 13G/A, by BlackRock, Inc. | 14.3% of the class | 5%+ stakes | Source |
| January 7, 2026 | Stake report, Schedule 13G/A, by The Vanguard Group | 10.51% of the class | 5%+ stakes | Source |
| August 14, 2025 | Stake report, Schedule 13G, by WASATCH ADVISORS LP | 5.5% of the class | 5%+ stakes | Source |
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More on Casella Waste Systems Inc and the records around it.
Casella Waste Systems Inc elsewhere on the record
Companies that share a holder
- Wasatch Advisors LP also filed stake reports on 72 other companies: Smith Douglas Homes Corp (Oct 2026), Amtech Systems Inc (Oct 2026), BBB Foods Inc (Oct 2026)
- Vanguard Portfolio Management also filed stake reports on 941 other companies: Newmark Group Inc (Nov 2026), A10 Networks Inc (Oct 2026), ADT Inc (Oct 2026)
- Vanguard Capital Management also filed stake reports on 1495 other companies: A10 Networks Inc (Oct 2026), Altisource Portfolio Solutions SA (Oct 2026), Alto Neuroscience Inc (Oct 2026)
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Timeline
| Filed | In / out | Person | Role | Effective | Source |
|---|---|---|---|---|---|
| 2026-07-20 | Reported | not named in the filing | 8-K/A, 2026-07-20 | ||
| 2026-07-01 | In | Chief Operating Officer | 8-K, 2026-07-01 |
Who leads Casella Waste Systems Inc, as last reported?
For each role that changed in the filings below, the most recent change reported. A role that did not change in these filings is not listed.
- Chief Operating Officer: Damian A. Ribar, appointed (filed 2026-07-01).
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Reported
The Company is filing this amendment to the Original 8-K to report that on July 20, 2026 in connection with such appointment, the Company entered into an employment agreement with Mr. Ribar (the "Employment Agreement").
- Pursuant to the terms of the Employment Agreement, Mr. Ribar will receive an annual base salary of $500,000.
- He will also be eligible to receive a bonus consisting of (i) a cash bonus of up to 85% of his annual base salary, (ii) the issuance of additional stock options, restricted stock units ("RSUs") or performance-based stock units ("PSUs") or (iii) a combination of both cash and stock options, RSUs or PSUs, in each case in an amount to be determined by the Compensation and Human Capital Committee of the Company's board of directors after the conclusion of each fiscal year.
Appointed: Damian A. Ribar, Chief Operating Officer
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.
- Mr. Ribar previously served as Division Vice President of North Florida of Waste Connection, Inc., a solid waste services company ("Waste Connections"), from August 2025 until July 2026.
- Prior to that, he served as Division Vice President of Florida of Waste Connections from July 2019 to July 2025 and Division Vice President of Atlantic Coast Florida of Waste Connections from June 2016 to June 2019.
- Earlier in his career, Mr. Ribar served as Area Manager for Progressive Waste Solutions, Ltd., Vice President and Operations Controller at Waste Services, Inc., Chief Accounting Officer and Corporate Controller at Regus Industries, LLC, and Region Controller at Waste Management, Inc. Mr. Ribar holds a Bachelor of Science in Accounting, with a minor in Finance and Economics, from University of Pittsburgh at Johnstown.
- Under the terms of the Offer Letter, Mr. Ribar's annual base salary will be $500,000, and he will be eligible to receive a cash bonus of up to 85% of his annual base salary.
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Where this comes from
A public company must file a current report on Form 8-K with the SEC within four business days when a director leaves or is elected, or when its chief executive, chief financial, chief accounting or chief operating officer, or another named executive, departs or is appointed. That disclosure goes under Item 5.02 of the report.
Every change on this page is taken from one of those filings and quoted in the company's own words, with a link to the filing, so it can be checked at the source. Where a filing names the person, the role and the date a change takes effect, they are shown beside the quote. Where it does not, the quote stands on its own. A filing states what changed; it rarely states why, and neither does this page.