Form 3 Filing for Rains Christopher Alan

This filing is a Form 3, which reports initial beneficial ownership of securities. Rains Christopher Alan, identified by CIK 0002114418, is the reporting owner. He holds the title of Sr. VP & Chief Revenue Officer at CASELLA WASTE SYSTEMS INC (CWST). The filing indicates that no securities are beneficially owned by Mr. Rains as of the period of report, March 16, 2026. The owner signature date is also March 16, 2026. The filing is a standard initial ownership report.