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Casella Waste Systems, Inc. reported that Sean Steves, its Senior Vice President and Chief Operating Officer of Solid Waste Operations, has decided to resign to pursue other opportunities outside the waste and recycling industry. His resignation is effective March 20, 2026, a date mutually agreed with the company. Casella has begun a process to identify the next Chief Operating Officer of Solid Waste Operations, indicating continuity planning for this key operational role. The company stated that Mr. Steves’ resignation was not due to any disagreement regarding its operations, policies, or practices.
Casella Waste Systems senior vice president and COO of solid waste operations, Sean Steves, reported stock-based compensation activity and a related tax sale. He acquired 3,433 shares of Class A Common Stock at no cost upon vesting of performance-based stock units tied to multi‑year company goals. To cover tax withholding on this vesting, 1,199 shares were automatically sold in the open market at a weighted average price of $92.89 under a pre‑established sell‑to‑cover instruction, leaving him with 9,669 directly owned shares.
Casella Waste Systems executive Kevin Drohan, VP & Chief Accounting Officer, reported two Class A Common Stock transactions. He acquired 2,452 shares at no cost upon vesting of performance-based stock units tied to 2025 company performance and relative total shareholder return through December 31, 2025. He then sold 675 shares at an average price of $92.61 per share in an automatic sell-to-cover trade to satisfy tax withholding on this vesting, under an instruction adopted on August 2, 2023, rather than a discretionary sale.
Casella Waste Systems president Edmond Coletta reported a performance-based equity vesting and related tax sale. On February 26, 2026, Coletta acquired 9,810 shares of Class A Common Stock at $0.00 per share upon vesting of performance-based stock units granted on March 10, 2023, after achievement of specified 2025 performance objectives and a total shareholder return multiplier for 2023–2025.
On February 27, 2026, 3,812 shares were sold in an open-market “sell-to-cover” transaction at a weighted average price of about $93.70 per share, solely to satisfy tax withholding obligations under an automatic instruction adopted on August 2, 2023, and not as a discretionary sale. Following these transactions, Coletta directly owned 147,091 shares of Class A Common Stock.
Casella Waste Systems CEO John W. Casella reported both an equity award vesting and a related share sale. He acquired 23,299 shares of Class A Common Stock at no cost upon vesting of performance-based stock units granted on March 10, 2023, based on performance from January 1, 2025 through December 31, 2025 and a relative total shareholder return multiplier for January 1, 2023 through December 31, 2025, as certified on February 26, 2026.
To cover tax withholding from this vesting, an automatic sell-to-cover instruction adopted on August 22, 2023 triggered the open-market sale of 6,726 Class A shares at a weighted average price of $93.10, which the filing notes did not represent a discretionary sale. After these transactions, he directly owned 27,989 Class A shares.
The filing also lists his Class B Common Stock holdings: 166,000 shares held directly, and additional Class B shares held indirectly through two Spousal Lifetime Access Trusts (137,000 and 134,000 shares) and by his spouse (57,100 Class B and 694 Class A). Footnotes state he disclaims beneficial ownership of certain indirect holdings to the extent he lacks an actual pecuniary interest.
Casella Waste Systems senior vice president and general counsel Shelley E. Sayward reported two transactions in Class A Common Stock. On February 26, 2026, she acquired 4,598 shares at $0.00 per share through the vesting of performance-based stock units granted on March 10, 2023, following achievement of performance objectives and a relative total shareholder return multiplier for periods ending December 31, 2025. On February 27, 2026, she executed an open-market sale of 1,591 shares at an average price of $92.91 per share to cover tax withholding obligations tied to the PSU vesting, under an automatic sell-to-cover instruction adopted on August 2, 2023. After these transactions, she directly held 27,206 shares of Class A Common Stock.