Edmond Coletta plan to sell securities of Casella Waste Systems, Inc. under Form 144

Edmond Coletta filed Form 144 to notify SEC of plan to sell 4907 units of Casella Waste Systems, Inc. securities around 2026-05-19, with aggregate market value of $425,633.18. The total outstanding units is 62621741.0. The amount planned to be sold represents 0.01% of total outstanding units; Recent transactions in past 3 months include: On 05/19/2026, sold 7593 units for $677551.48; On 02/27/2026, sold 3812 units for $357021.00; On 03/12/2026, sold 377 units for $33808.00; On 03/16/2026, sold 988 units for $86715.00;