SEC Form 4 · accession 0001055353-26-000008
CASELLA WASTE SYSTEMS INC · CWST
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Douglas R Casella
Officer — VICE CHAIRMAN, BD OF DIRECTORS · Director
Period of report
Aug 13, 2026
Accepted (ET)
Aug 14, 2026 · 5:16 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0000911177
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Class A Common Stock | Aug 13, 2026 | S | 1,838 | $90.89 | D | 104,803 | D | |
| Class A Common StockF1 | Aug 13, 2026 | S | 13,319 | $91.07 | D | 91,484 | D | |
| Class A Common StockF2 | Aug 14, 2026 | S | 1,343 | $91.12 | D | 90,141 | D | |
| Class B Common Stock | holding | — | — | — | 129,000 | D | ||
| Class B Common StockF3 | holding | — | — | — | 171,000 | I | By SLAT | |
| Class B Common StockF4 | holding | — | — | — | 170,000 | I | By SLAT 2 | |
| Class B Common StockF5 | holding | — | — | — | 24,100 | I | By Spouse |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1Represents the weighted average sales price for shares sold in multiple transactions, ranging from $91.00 to $91.23. Upon request of the staff of the Securities and Exchange Commission, the issuer or a security holder of the issuer, the reporting person will provide full information regarding the number of shares sold at each separate price.
- F2Represents the weighted average sales price for shares sold in multiple transactions, ranging from $91.04 to $91.26. Upon request of the staff of the Securities and Exchange Commission, the issuer or a security holder of the issuer, the reporting person will provide full information regarding the number of shares sold at each separate price.
- F3Held by the Spousal Lifetime Access Trust for the benefit of Mr. Casella's spouse ("SLAT"). Mr. Casella's spouse is the trustee of the SLAT. Mr. Casella disclaims beneficial ownership of the securities indicated to the extent to which he does not have an actual pecuniary interest in such securities.
- F4Held by the Spousal Lifetime Access Trust for the benefit of Mr. Casella ("SLAT 2"). Mr. Casella is the trustee of SLAT 2.
- F5Held by Mr. Casella's spouse. Mr. Casella disclaims beneficial ownership of the securities indicated to the extent to which he does not have an actual pecuniary interest in such securities.