| 2025-12-08 | Coletta Edmond | PRESIDENT | Sell | 7,000 | $100.07 | $700,490.00 | -4.7% | → |
| 2025-11-07 | Helgeson Bradford John | Executive VP and CFO | Sell | 262 | $87.65 | $22,964.30 | -5.0% | → |
| 2025-11-04 | Green Emily Nagle | - | Sell | 1,116 | $89.38 | $99,748.08 | -16.5% | → |
| 2025-08-04 | Ligon Paul | SR VP of Sustainable Growth | Sell | 1,000 | $102.84 | $102,840.00 | -5.2% | → |
| 2025-06-03 | Ligon Paul | SR VP of Sustainable Growth | Sell | 1,000 | $116.98 | $116,980.00 | -4.9% | → |
| 2025-05-08 | CASELLA JOHN W | CHIEF EXECUTIVE OFFICER | Sell | 18,093 | $119.87 | $2,168,807.91 | -61.3% | → |
| 2025-05-06 | Coletta Edmond | PRESIDENT | Sell | 5,562 | $119.18 | $662,879.16 | -3.6% | → |
| 2025-04-16 | Ligon Paul | SR VP of Sustainable Growth | Sell | 2,000 | $118.68 | $237,350.00 | -2.3% | → |
| 2025-03-13 | Coletta Edmond | PRESIDENT | Sell | 6,292 | $105.11 | $661,355.34 | -1.0% | → |
| 2025-03-13 | Drohan Kevin | VP & CHIEF ACCOUNTING OFFICER | Sell | 188 | $105.88 | $19,905.67 | -1.1% | → |
| 2025-03-13 | CASELLA DOUGLAS R | VICE CHAIRMAN, BD OF DIRECTORS | Sell | 696 | $106.00 | $73,778.64 | -0.2% | → |
| 2025-03-13 | Ligon Paul | SR VP of Sustainable Growth | Sell | 182 | $105.73 | $19,242.26 | -0.3% | → |
| 2025-03-13 | Helgeson Bradford John | Executive VP and CFO | Sell | 197 | $103.87 | $20,462.39 | -3.6% | → |
| 2025-03-13 | Steves Sean | Sr VP & COO of SW Ops | Sell | 279 | $105.67 | $29,482.82 | -1.2% | → |
| 2025-03-13 | Sayward Shelley E. | SENIOR VP & GENERAL COUNSEL | Sell | 587 | $105.69 | $62,040.28 | -0.8% | → |
| 2025-03-13 | CASELLA JOHN W | CHIEF EXECUTIVE OFFICER | Sell | 2,693 | $106.31 | $286,300.15 | -2.9% | → |
| 2025-03-10 | CASELLA DOUGLAS R | VICE CHAIRMAN, BD OF DIRECTORS | Sell | 5,387 | $111.94 | $603,028.32 | -2.4% | → |
| 2025-03-03 | CASELLA JOHN W | CHIEF EXECUTIVE OFFICER | Sell | 13,577 | $113.88 | $1,546,148.76 | -34.1% | → |
| 2025-03-03 | Coletta Edmond | PRESIDENT | Sell | 5,206 | $113.75 | $592,182.50 | -3.2% | → |
| 2025-03-03 | Drohan Kevin | VP & CHIEF ACCOUNTING OFFICER | Sell | 1,136 | $113.48 | $128,913.28 | -17.4% | → |
| 2025-03-03 | Ligon Paul | SR VP of Sustainable Growth | Sell | 487 | $113.33 | $55,191.71 | -2.2% | → |
| 2025-03-03 | Steves Sean | Sr VP & COO of SW Ops | Sell | 495 | $113.49 | $56,177.55 | -6.8% | → |
| 2025-03-03 | Sayward Shelley E. | SENIOR VP & GENERAL COUNSEL | Sell | 1,938 | $113.35 | $219,672.30 | -7.6% | → |
| 2024-12-13 | Green Emily Nagle | Director | Sell | 2,025 | $108.18 | $219,060.45 | -11.5% | → |
| 2024-11-25 | BURKE MICHAEL K | Director | Sell | 1,800 | $112.88 | $203,184.00 | -10.6% | → |
| 2024-11-22 | CASELLA DOUGLAS R | VICE CHAIRMAN, BD OF DIRECTORS | Sell | 20,000 | $112.26 | $2,245,200.00 | -14.8% | → |
| 2024-11-15 | CASELLA JOHN W | CHIEF EXECUTIVE OFFICER | Sale+OE | 27,940 | $106.43 | $2,973,534.83 | -30.8% | → |
| 2024-11-12 | Steves Sean | Sr VP & COO of SW Ops | Sell | 1,418 | $108.27 | $153,526.86 | -19.6% | → |
| 2024-11-07 | Helgeson Bradford John | Executive VP and CFO | Sell | 197 | $106.68 | $21,015.96 | -5.3% | → |