Form 4 Filing for Christopher Alan Rains - Casella Waste Systems Inc.

This filing details a transaction by Christopher Alan Rains, Sr. VP & Chief Revenue Officer of Casella Waste Systems Inc. On March 16, 2026, Rains acquired 989 shares of Class A Common Stock under the company's 2016 Incentive Plan. This acquisition was part of an award of Restricted Stock Units (RSUs), where each RSU represents a contingent right to one share of Class A Common Stock. The RSUs vest in three equal annual installments starting March 12, 2027. The transaction code is "A" for acquisition, and the shares were acquired at a price of $0.0 per share, with a post-transaction ownership of 989 shares. The filing is made on Form 4, signed by Rains on March 17, 2026.