CWSTCASELLA WASTE SYSTEMS INC
- Market cap
- $6.21B
- as of 2026-10-23
- Latest close
- $97.61
- as of 2026-10-23
- Sector
- Industrials
- as of 2026-10-24
- Industry
- Waste Management
- as of 2026-10-24
Cluster
No cluster in the last 90 days under the default rule (14d · ≥2 insiders · all roles).
Form 4 historysince 2023-10-03
Dashed line = amended filing (Form 4/A)
| Insider | Traded | Filed | Type | Shares | Price | Value | Owned after | 10b5-1 plan | Filing |
|---|---|---|---|---|---|---|---|---|---|
| Burke Michael K | Sep 3 | Sep 3 | S | 1,100 | $95.26 | Sale −$104,786 | 13,641 | No | Form 4 |
| Burke Michael K | Aug 26 | Aug 26 | S | 1,100 | $92.99 | Sale −$102,289 | 14,741 | No | Form 4 |
| Casella Douglas RVICE CHAIRMAN, BD OF DIRECTORS | Aug 14 | Aug 14 | S | 1,343 | $91.12 | Sale −$122,374 | 90,141 | No | Form 4 |
| Casella Douglas RVICE CHAIRMAN, BD OF DIRECTORS | Aug 13 | Aug 14 | S | 1,838 | $90.89 | Sale −$167,056 | 104,803 | No | Form 4 |
| Casella Douglas RVICE CHAIRMAN, BD OF DIRECTORS | Aug 13 | Aug 14 | S | 13,319 | $91.07 | Sale −$1,212,961 | 91,484 | No | Form 4 |
| Ribar Damian AndrewExecutive VP and COO | Aug 11 | Aug 12 | A · derivative | 25,000 | $92.52 | $2,313,000 | 25,000 | No | Form 4 |
| Green Emily Nagle | Jun 8 | Jun 10 | G | 600 | $0.00 | $0 | 16,902 | No | Form 4 |
| Casella Douglas RVICE CHAIRMAN, BD OF DIRECTORS | Jun 4 | Jun 5 | A | 1,793 | $83.65 | $149,984 | 106,641 | No | Form 4 |
| Doody Joseph | Jun 4 | Jun 5 | A | 1,793 | $83.65 | $149,984 | 13,143 | No | Form 4 |
| Burke Michael K | Jun 4 | Jun 5 | A | 1,793 | $83.65 | $149,984 | 15,841 | No | Form 4 |
| Hulligan William P | Jun 4 | Jun 5 | A | 1,793 | $83.65 | $149,984 | 8,161 | No | Form 4 |
| Battles Michael Louis | Jun 4 | Jun 5 | A | 1,793 | $83.65 | $149,984 | 10,289 | No | Form 4 |
| Green Emily Nagle | Jun 4 | Jun 5 | A | 1,793 | $83.65 | $149,984 | 17,502 | No | Form 4 |
| Kirk Rose M. | Jun 4 | Jun 5 | A | 1,793 | $83.65 | $149,984 | 9,835 | No | Form 4 |
| Sova Gary | Jun 4 | Jun 5 | A | 1,793 | $83.65 | $149,984 | 8,204 | No | Form 4 |
| Casella Douglas RVICE CHAIRMAN, BD OF DIRECTORS | Mar 18 | Jun 44/A | G | 40,000 | $0.00 | $0 | 171,000 | No | Form 4/A |
| Casella Douglas RVICE CHAIRMAN, BD OF DIRECTORS | Mar 17 | Jun 44/A | G | 33,000 | $0.00 | $0 | 170,000 | No | Form 4/A |
| Casella John W | Jun 1 | Jun 2 | G | 36,200 | $0.00 | $0 | 129,800 | No | Form 4 |
| Casella John W | Jun 1 | Jun 2 | G | 36,200 | $0.00 | $0 | 170,200 | No | Form 4 |
| Casella John W | Jun 1 | Jun 2 | G | 30,800 | $0.00 | $0 | 26,300 | No | Form 4 |
| Casella John W | Jun 1 | Jun 2 | G | 30,800 | $0.00 | $0 | 167,800 | No | Form 4 |
| Burke Michael K | May 26 | May 27 | S | 2,305 | $87.56 | Sale −$201,826 | 14,048 | No | Form 4 |
| Coletta EdmondPRESIDENT & CEO | May 19 | May 22 | S | 6,000 | $89.03 | Sale −$534,180 | 146,618 | No | Form 4 |
| Coletta EdmondPRESIDENT & CEO | May 19 | May 22 | S | 1,593 | $90.00 | Sale −$143,370 | 145,025 | No | Form 4 |
| Coletta EdmondPRESIDENT & CEO | May 19 | May 22 | S | 4,907 | $90.07 | Sale −$441,973 | 140,118 | No | Form 4 |
| Rains Christopher AlanSr. VP & Chief Revenue Officer | Mar 16 | Mar 17 | A | 989 | $0.00 | $0 | 989 | No | Form 4 |
| Casella John W | Mar 16 | Mar 16 | S | 1,744 | $87.77 | Sale −$153,071 | 30,795 | Yes | Form 4 |
| Coletta EdmondPRESIDENT & CEO | Mar 16 | Mar 16 | S | 988 | $87.81 | Sale −$86,756 | 152,618 | Yes | Form 4 |
| Helgeson Bradford JohnExecutive VP and CFO | Mar 16 | Mar 16 | S | 405 | $87.73 | Sale −$35,531 | 7,342 | Yes | Form 4 |
| Sayward Shelley E.SENIOR VP & GENERAL COUNSEL | Mar 16 | Mar 16 | S | 362 | $87.73 | Sale −$31,758 | 28,369 | Yes | Form 4 |
| Drohan KevinVP & CHIEF ACCOUNTING OFFICER | Mar 16 | Mar 16 | S | 85 | $87.73 | Sale −$7,457 | 7,873 | Yes | Form 4 |
| Steves SeanSr VP & COO of SW Ops | Mar 16 | Mar 16 | S | 197 | $87.80 | Sale −$17,297 | 9,375 | Yes | Form 4 |
| Casella John W | Mar 12 | Mar 16 | A | 5,513 | $0.00 | $0 | 33,502 | Yes | Form 4 |
| Casella John W | Mar 12 | Mar 16 | S | 963 | $90.06 | Sale −$86,728 | 32,539 | Yes | Form 4 |
| Coletta EdmondPRESIDENT & CEO | Mar 12 | Mar 16 | A | 6,892 | $0.00 | $0 | 153,983 | Yes | Form 4 |
| Coletta EdmondPRESIDENT & CEO | Mar 12 | Mar 16 | S | 377 | $89.80 | Sale −$33,855 | 153,606 | Yes | Form 4 |
| Helgeson Bradford JohnExecutive VP and CFO | Mar 12 | Mar 16 | A | 2,756 | $0.00 | $0 | 7,747 | Yes | Form 4 |
| Sayward Shelley E.SENIOR VP & GENERAL COUNSEL | Mar 12 | Mar 16 | A | 1,654 | $0.00 | $0 | 28,860 | Yes | Form 4 |
| Sayward Shelley E.SENIOR VP & GENERAL COUNSEL | Mar 12 | Mar 16 | S | 129 | $89.71 | Sale −$11,573 | 28,731 | Yes | Form 4 |
| Drohan KevinVP & CHIEF ACCOUNTING OFFICER | Mar 12 | Mar 16 | A | 551 | $0.00 | $0 | 8,013 | Yes | Form 4 |
| Drohan KevinVP & CHIEF ACCOUNTING OFFICER | Mar 12 | Mar 16 | S | 55 | $89.52 | Sale −$4,924 | 7,958 | Yes | Form 4 |
| Steves SeanSr VP & COO of SW Ops | Mar 12 | Mar 16 | S | 97 | $89.71 | Sale −$8,702 | 9,572 | Yes | Form 4 |
| Casella John WCHIEF EXECUTIVE OFFICER | Feb 27 | Mar 2 | S | 6,726 | $93.10 | Sale −$626,191 | 27,989 | No | Form 4 |
| Coletta EdmondPRESIDENT | Feb 27 | Mar 2 | S | 3,812 | $93.70 | Sale −$357,184 | 147,091 | No | Form 4 |
| Sayward Shelley E.SENIOR VP & GENERAL COUNSEL | Feb 27 | Mar 2 | S | 1,591 | $92.91 | Sale −$147,820 | 27,206 | No | Form 4 |
| Drohan KevinVP & CHIEF ACCOUNTING OFFICER | Feb 27 | Mar 2 | S | 675 | $92.61 | Sale −$62,512 | 7,462 | No | Form 4 |
| Steves SeanSr VP & COO of SW Ops | Feb 27 | Mar 2 | S | 1,199 | $92.89 | Sale −$111,375 | 9,669 | No | Form 4 |
| Casella John WCHIEF EXECUTIVE OFFICER | Feb 26 | Mar 2 | A | 23,299 | $0.00 | $0 | 34,715 | No | Form 4 |
| Coletta EdmondPRESIDENT | Feb 26 | Mar 2 | A | 9,810 | $0.00 | $0 | 150,903 | No | Form 4 |
| Sayward Shelley E.SENIOR VP & GENERAL COUNSEL | Feb 26 | Mar 2 | A | 4,598 | $0.00 | $0 | 28,797 | No | Form 4 |
| Drohan KevinVP & CHIEF ACCOUNTING OFFICER | Feb 26 | Mar 2 | A | 2,452 | $0.00 | $0 | 8,137 | No | Form 4 |
| Steves SeanSr VP & COO of SW Ops | Feb 26 | Mar 2 | A | 3,433 | $0.00 | $0 | 10,868 | No | Form 4 |
| Casella Douglas RVICE CHAIRMAN, BD OF DIRECTORS | Dec 8, 2025 | Dec 9, 2025 | G | 3,900 | $0.00 | $0 | 104,848 | No | Form 4 |
| Coletta EdmondPRESIDENT | Dec 8, 2025 | Dec 9, 2025 | G | 2,000 | $0.00 | $0 | 148,093 | No | Form 4 |
| Coletta EdmondPRESIDENT | Dec 8, 2025 | Dec 9, 2025 | S | 7,000 | $100.07 | Sale −$700,490 | 141,093 | No | Form 4 |
| Helgeson Bradford JohnExecutive VP and CFO | Nov 7, 2025 | Nov 10, 2025 | S | 262 | $87.65 | Sale −$22,964 | 4,991 | Yes | Form 4 |
| Green Emily Nagle | Nov 5, 2025 | Nov 7, 2025 | G | 1,130 | $0.00 | $0 | 15,709 | No | Form 4 |
| Green Emily Nagle | Nov 4, 2025 | Nov 6, 2025 | S | 1,116 | $89.38 | Sale −$99,748 | 5,647 | No | Form 4 |
| Ligon PaulSR VP of Sustainable Growth | Aug 4, 2025 | Aug 5, 2025 | S | 1,000 | $102.84 | Sale −$102,840 | 18,347 | Yes | Form 4 |
| Kirk Rose M. | Jun 5, 2025 | Jun 9, 2025 | A | 1,215 | $115.17 | $139,932 | 8,042 | No | Form 4 |
| Battles Michael Louis | Jun 5, 2025 | Jun 9, 2025 | A | 1,215 | $115.17 | $139,932 | 8,496 | No | Form 4 |
| Burke Michael K | Jun 5, 2025 | Jun 9, 2025 | A | 1,215 | $115.17 | $139,932 | 16,353 | No | Form 4 |
| Sova Gary | Jun 5, 2025 | Jun 9, 2025 | A | 1,215 | $115.17 | $139,932 | 6,411 | No | Form 4 |
| Green Emily Nagle | Jun 5, 2025 | Jun 9, 2025 | A | 1,215 | $115.17 | $139,932 | 16,839 | No | Form 4 |
| Doody Joseph | Jun 5, 2025 | Jun 9, 2025 | A | 1,215 | $115.17 | $139,932 | 10,916 | No | Form 4 |
| Doody Joseph | Jun 5, 2025 | Jun 9, 2025 | A | 434 | $115.17 | $49,984 | 11,350 | No | Form 4 |
| Hulligan William P | Jun 5, 2025 | Jun 9, 2025 | A | 1,215 | $115.17 | $139,932 | 6,368 | No | Form 4 |
| Ligon PaulSR VP of Sustainable Growth | Jun 3, 2025 | Jun 4, 2025 | S | 1,000 | $116.98 | Sale −$116,980 | 19,347 | Yes | Form 4 |
| Casella John WCHIEF EXECUTIVE OFFICER | May 8, 2025 | May 9, 2025 | S | 18,093 | $119.87 | Sale −$2,168,808 | 11,416 | No | Form 4 |
| Coletta EdmondPRESIDENT | May 6, 2025 | May 7, 2025 | S | 5,562 | $119.18 | Sale −$662,879 | 150,093 | No | Form 4 |
| Ligon PaulSR VP of Sustainable Growth | Apr 16, 2025 | Apr 17, 2025 | S | 800 | $117.65 | Sale −$94,120 | 21,547 | Yes | Form 4 |
| Ligon PaulSR VP of Sustainable Growth | Apr 16, 2025 | Apr 17, 2025 | S | 400 | $118.66 | Sale −$47,464 | 21,147 | Yes | Form 4 |
| Ligon PaulSR VP of Sustainable Growth | Apr 16, 2025 | Apr 17, 2025 | S | 700 | $119.62 | Sale −$83,734 | 20,447 | Yes | Form 4 |
| Ligon PaulSR VP of Sustainable Growth | Apr 16, 2025 | Apr 17, 2025 | S | 100 | $120.32 | Sale −$12,032 | 20,347 | Yes | Form 4 |
| Casella Douglas RVICE CHAIRMAN, BD OF DIRECTORS | Mar 13, 2025 | Mar 14, 2025 | S | 200 | $103.93 | Sale −$20,786 | 108,748 | Yes | Form 4 |
| Helgeson Bradford JohnExecutive VP and CFO | Mar 13, 2025 | Mar 14, 2025 | S | 197 | $103.87 | Sale −$20,462 | 5,253 | Yes | Form 4 |
| Steves SeanSr VP & COO of SW Ops | Mar 13, 2025 | Mar 14, 2025 | S | 108 | $104.13 | Sale −$11,246 | 7,435 | Yes | Form 4 |
| Sayward Shelley E.SENIOR VP & GENERAL COUNSEL | Mar 13, 2025 | Mar 14, 2025 | S | 206 | $103.95 | Sale −$21,414 | 24,199 | Yes | Form 4 |
| Drohan KevinVP & CHIEF ACCOUNTING OFFICER | Mar 13, 2025 | Mar 14, 2025 | S | 57 | $104.00 | Sale −$5,928 | 5,685 | Yes | Form 4 |
| Ligon PaulSR VP of Sustainable Growth | Mar 13, 2025 | Mar 14, 2025 | S | 57 | $104.06 | Sale −$5,931 | 22,347 | Yes | Form 4 |
| Casella John WCHIEF EXECUTIVE OFFICER | Mar 13, 2025 | Mar 14, 2025 | S | 865 | $104.23 | Sale −$90,159 | 29,509 | Yes | Form 4 |
| Coletta EdmondPRESIDENT | Mar 13, 2025 | Mar 14, 2025 | S | 456 | $104.07 | Sale −$47,456 | 160,655 | Yes | Form 4 |
| Coletta EdmondPRESIDENT | Mar 13, 2025 | Mar 14, 2025 | S | 5,000 | $105.00 | Sale −$525,000 | 155,655 | Yes | Form 4 |
| Casella Douglas RVICE CHAIRMAN, BD OF DIRECTORS | Mar 12, 2025 | Mar 14, 2025 | A | 1,569 | $0.00 | $0 | 109,444 | Yes | Form 4 |
| Casella Douglas RVICE CHAIRMAN, BD OF DIRECTORS | Mar 12, 2025 | Mar 14, 2025 | S | 272 | $107.26 | Sale −$29,175 | 109,172 | Yes | Form 4 |
| Casella Douglas RVICE CHAIRMAN, BD OF DIRECTORS | Mar 12, 2025 | Mar 14, 2025 | S | 224 | $106.33 | Sale −$23,818 | 108,948 | Yes | Form 4 |
| Helgeson Bradford JohnExecutive VP and CFO | Mar 12, 2025 | Mar 14, 2025 | A | 1,902 | $0.00 | $0 | 5,450 | Yes | Form 4 |
| Steves SeanSr VP & COO of SW Ops | Mar 12, 2025 | Mar 14, 2025 | A | 951 | $0.00 | $0 | 7,714 | Yes | Form 4 |
| Steves SeanSr VP & COO of SW Ops | Mar 12, 2025 | Mar 14, 2025 | S | 100 | $106.98 | Sale −$10,698 | 7,614 | Yes | Form 4 |
| Steves SeanSr VP & COO of SW Ops | Mar 12, 2025 | Mar 14, 2025 | S | 71 | $106.18 | Sale −$7,539 | 7,543 | Yes | Form 4 |
| Sayward Shelley E.SENIOR VP & GENERAL COUNSEL | Mar 12, 2025 | Mar 14, 2025 | A | 1,070 | $0.00 | $0 | 24,786 | Yes | Form 4 |
| Sayward Shelley E.SENIOR VP & GENERAL COUNSEL | Mar 12, 2025 | Mar 14, 2025 | S | 215 | $106.98 | Sale −$23,001 | 24,571 | Yes | Form 4 |
| Sayward Shelley E.SENIOR VP & GENERAL COUNSEL | Mar 12, 2025 | Mar 14, 2025 | S | 166 | $106.18 | Sale −$17,626 | 24,405 | Yes | Form 4 |
| Drohan KevinVP & CHIEF ACCOUNTING OFFICER | Mar 12, 2025 | Mar 14, 2025 | A | 475 | $0.00 | $0 | 5,873 | Yes | Form 4 |
| Drohan KevinVP & CHIEF ACCOUNTING OFFICER | Mar 12, 2025 | Mar 14, 2025 | S | 72 | $106.97 | Sale −$7,702 | 5,801 | Yes | Form 4 |
| Drohan KevinVP & CHIEF ACCOUNTING OFFICER | Mar 12, 2025 | Mar 14, 2025 | S | 59 | $106.37 | Sale −$6,276 | 5,742 | Yes | Form 4 |
| Ligon PaulSR VP of Sustainable Growth | Mar 12, 2025 | Mar 14, 2025 | A | 475 | $0.00 | $0 | 22,529 | Yes | Form 4 |
| Ligon PaulSR VP of Sustainable Growth | Mar 12, 2025 | Mar 14, 2025 | S | 54 | $106.89 | Sale −$5,772 | 22,475 | Yes | Form 4 |
| Ligon PaulSR VP of Sustainable Growth | Mar 12, 2025 | Mar 14, 2025 | S | 71 | $106.18 | Sale −$7,539 | 22,404 | Yes | Form 4 |
| Casella John WCHIEF EXECUTIVE OFFICER | Mar 12, 2025 | Mar 14, 2025 | A | 5,944 | $0.00 | $0 | 32,202 | Yes | Form 4 |
| Casella John WCHIEF EXECUTIVE OFFICER | Mar 12, 2025 | Mar 14, 2025 | S | 1,076 | $107.94 | Sale −$116,143 | 31,126 | Yes | Form 4 |
| Casella John WCHIEF EXECUTIVE OFFICER | Mar 12, 2025 | Mar 14, 2025 | S | 752 | $106.38 | Sale −$79,998 | 30,374 | Yes | Form 4 |
| Coletta EdmondPRESIDENT | Mar 12, 2025 | Mar 14, 2025 | A | 3,566 | $0.00 | $0 | 161,947 | Yes | Form 4 |
| Coletta EdmondPRESIDENT | Mar 12, 2025 | Mar 14, 2025 | S | 459 | $106.33 | Sale −$48,805 | 161,488 | Yes | Form 4 |
| Coletta EdmondPRESIDENT | Mar 12, 2025 | Mar 14, 2025 | S | 377 | $106.35 | Sale −$40,094 | 161,111 | Yes | Form 4 |
| Casella Douglas RVICE CHAIRMAN, BD OF DIRECTORS | Mar 10, 2025 | Mar 12, 2025 | S | 2,229 | $111.32 | Sale −$248,132 | 111,033 | No | Form 4 |
| Casella Douglas RVICE CHAIRMAN, BD OF DIRECTORS | Mar 10, 2025 | Mar 12, 2025 | S | 3,158 | $112.38 | Sale −$354,896 | 107,875 | No | Form 4 |
| Drohan KevinVP & CHIEF ACCOUNTING OFFICER | Mar 3, 2025 | Mar 3, 2025 | S | 1,136 | $113.48 | Sale −$128,913 | 5,398 | No | Form 4 |
| Ligon PaulSR VP of Sustainable Growth | Mar 3, 2025 | Mar 3, 2025 | S | 487 | $113.33 | Sale −$55,192 | 22,054 | No | Form 4 |
| Steves SeanSr VP & COO of SW Ops | Mar 3, 2025 | Mar 3, 2025 | S | 495 | $113.49 | Sale −$56,178 | 6,763 | No | Form 4 |
| Sayward Shelley E.SENIOR VP & GENERAL COUNSEL | Mar 3, 2025 | Mar 3, 2025 | S | 1,938 | $113.35 | Sale −$219,672 | 23,716 | No | Form 4 |
| Coletta EdmondPRESIDENT | Mar 3, 2025 | Mar 3, 2025 | S | 5,206 | $113.75 | Sale −$592,183 | 158,381 | No | Form 4 |
| Casella John WCHIEF EXECUTIVE OFFICER | Mar 3, 2025 | Mar 3, 2025 | S | 13,577 | $113.88 | Sale −$1,546,149 | 26,258 | No | Form 4 |
| Drohan KevinVP & CHIEF ACCOUNTING OFFICER | Feb 27, 2025 | Mar 3, 2025 | A | 3,639 | $0.00 | $0 | 6,534 | No | Form 4 |
| Ligon PaulSR VP of Sustainable Growth | Feb 27, 2025 | Mar 3, 2025 | A | 1,456 | $0.00 | $0 | 22,541 | No | Form 4 |
| Steves SeanSr VP & COO of SW Ops | Feb 27, 2025 | Mar 3, 2025 | A | 1,456 | $0.00 | $0 | 7,258 | No | Form 4 |
| Sayward Shelley E.SENIOR VP & GENERAL COUNSEL | Feb 27, 2025 | Mar 3, 2025 | A | 6,367 | $0.00 | $0 | 25,654 | No | Form 4 |
| Coletta EdmondPRESIDENT | Feb 27, 2025 | Mar 3, 2025 | A | 14,553 | $0.00 | $0 | 163,587 | No | Form 4 |
| Casella John WCHIEF EXECUTIVE OFFICER | Feb 27, 2025 | Mar 3, 2025 | A | 29,106 | $0.00 | $0 | 39,835 | No | Form 4 |
| Green Emily Nagle | Nov 6, 2023 | Jan 10, 2025 | G | 7,508 | $0.00 | $0 | 15,624 | No | Form 4 |
| Green Emily Nagle | Dec 13, 2024 | Dec 16, 2024 | G | 575 | $0.00 | $0 | 17,649 | No | Form 4 |
| Green Emily Nagle | Dec 13, 2024 | Dec 16, 2024 | S | 2,025 | $108.18 | Sale −$219,065 | 15,624 | No | Form 4 |
| Casella Douglas RVICE CHAIRMAN, BD OF DIRECTORS | Dec 2, 2024 | Dec 4, 2024 | G | 2,173 | $0.00 | $0 | 113,262 | No | Form 4 |
| Burke Michael K | Nov 25, 2024 | Nov 25, 2024 | S | 1,800 | $112.88 | Sale −$203,184 | 15,138 | No | Form 4 |
| Casella Douglas RVICE CHAIRMAN, BD OF DIRECTORS | Nov 22, 2024 | Nov 25, 2024 | S | 20,000 | $112.26 | Sale −$2,245,200 | 115,435 | No | Form 4 |
| Casella John WCHIEF EXECUTIVE OFFICER | Nov 15, 2024 | Nov 18, 2024 | S | 24,892 | $106.32 | Sale −$2,646,517 | 13,526 | No | Form 4 |
| Casella John WCHIEF EXECUTIVE OFFICER | Nov 15, 2024 | Nov 18, 2024 | S | 2,797 | $107.15 | Sale −$299,699 | 10,729 | No | Form 4 |
| Casella John WCHIEF EXECUTIVE OFFICER | Nov 14, 2024 | Nov 18, 2024 | M | 27,940 | $12.48 | $348,691 | 38,669 | No | Form 4 |
| Casella John WCHIEF EXECUTIVE OFFICER | Nov 14, 2024 | Nov 18, 2024 | S | 251 | $108.84 | Sale −$27,319 | 38,418 | No | Form 4 |
| Casella John WCHIEF EXECUTIVE OFFICER | Nov 14, 2024 | Nov 18, 2024 | M · derivative | 27,940 | $12.48 | $348,691 | not reported | No | Form 4 |
| Steves SeanSr VP & COO of SW Ops | Nov 12, 2024 | Nov 12, 2024 | S | 1,418 | $108.27 | Sale −$153,527 | 5,802 | No | Form 4 |
| Green Emily Nagle | Nov 8, 2024 | Nov 12, 2024 | G | 505 | $0.00 | $0 | 18,224 | No | Form 4 |
| Helgeson Bradford JohnExecutive VP and CFO | Nov 7, 2024 | Nov 8, 2024 | S | 197 | $106.68 | Sale −$21,016 | 3,548 | Yes | Form 4 |
| Green Emily Nagle | Nov 6, 2024 | Nov 8, 2024 | G | 3,000 | $0.00 | $0 | 18,729 | No | Form 4 |
| Green Emily Nagle | Nov 6, 2024 | Nov 8, 2024 | S | 745 | $105.14 | Sale −$78,329 | 6,763 | No | Form 4 |
| Ligon PaulSR VP of Sustainable Growth | Nov 6, 2024 | Nov 7, 2024 | S | 1,730 | $106.81 | Sale −$184,781 | 21,085 | No | Form 4 |
| Casella John WCHIEF EXECUTIVE OFFICER | Nov 5, 2024 | Nov 6, 2024 | S | 2,699 | $100.13 | Sale −$270,251 | 31,539 | No | Form 4 |
| Casella John WCHIEF EXECUTIVE OFFICER | Nov 5, 2024 | Nov 6, 2024 | S | 20,810 | $100.88 | Sale −$2,099,313 | 10,729 | No | Form 4 |
| Hulligan William P | Nov 4, 2024 | Nov 5, 2024 | S | 1,502 | $99.92 | Sale −$150,080 | 13,651 | No | Form 4 |
| Hulligan William P | Nov 4, 2024 | Nov 5, 2024 | S | 8,498 | $99.80 | Sale −$848,100 | 5,153 | No | Form 4 |
| Coletta EdmondPRESIDENT | Nov 4, 2024 | Nov 5, 2024 | G | 1,000 | $0.00 | $0 | 169,034 | No | Form 4 |
| Coletta EdmondPRESIDENT | Nov 4, 2024 | Nov 5, 2024 | S | 19,308 | $100.09 | Sale −$1,932,538 | 149,726 | No | Form 4 |
| Coletta EdmondPRESIDENT | Nov 4, 2024 | Nov 5, 2024 | S | 692 | $100.62 | Sale −$69,629 | 149,034 | No | Form 4 |
| Drohan KevinVP & CHIEF ACCOUNTING OFFICER | Sep 3, 2024 | Sep 3, 2024 | S | 214 | $105.42 | Sale −$22,560 | 2,895 | No | Form 4 |
| Sova Gary | Jun 6, 2024 | Jun 7, 2024 | A | 1,451 | $96.47 | $139,978 | 5,196 | No | Form 4 |
| Green Emily Nagle | Jun 6, 2024 | Jun 7, 2024 | A | 1,451 | $96.47 | $139,978 | 29,237 | No | Form 4 |
| Burke Michael K | Jun 6, 2024 | Jun 7, 2024 | A | 1,451 | $96.47 | $139,978 | 16,938 | No | Form 4 |
| Hulligan William P | Jun 6, 2024 | Jun 7, 2024 | A | 1,451 | $96.47 | $139,978 | 15,153 | No | Form 4 |
| Kirk Rose M. | Jun 6, 2024 | Jun 7, 2024 | A | 1,451 | $96.47 | $139,978 | 6,827 | No | Form 4 |
| Doody Joseph | Jun 6, 2024 | Jun 7, 2024 | A | 1,451 | $96.47 | $139,978 | 9,701 | No | Form 4 |
| Battles Michael Louis | Jun 6, 2024 | Jun 7, 2024 | A | 1,451 | $96.47 | $139,978 | 7,281 | No | Form 4 |
| Coletta EdmondPRESIDENT | Mar 14, 2024 | Mar 14, 2024 | S | 452 | $94.02 | Sale −$42,497 | 170,034 | Yes | Form 4 |
| Steves SeanSr VP & COO of SW Ops | Mar 14, 2024 | Mar 14, 2024 | S | 44 | $94.00 | Sale −$4,136 | 7,220 | Yes | Form 4 |
| Ligon PaulSR VP of Sustainable Growth | Mar 14, 2024 | Mar 14, 2024 | S | 104 | $93.80 | Sale −$9,755 | 22,815 | Yes | Form 4 |
| Casella John WCHIEF EXECUTIVE OFFICER | Mar 14, 2024 | Mar 14, 2024 | S | 951 | $94.15 | Sale −$89,537 | 34,238 | Yes | Form 4 |
| Sayward Shelley E.SENIOR VP & GENERAL COUNSEL | Mar 14, 2024 | Mar 14, 2024 | S | 124 | $93.81 | Sale −$11,632 | 19,287 | Yes | Form 4 |
| Casella Douglas RVICE CHAIRMAN, BD OF DIRECTORS | Mar 14, 2024 | Mar 14, 2024 | S | 391 | $94.17 | Sale −$36,820 | 135,435 | Yes | Form 4 |
| Coletta EdmondPRESIDENT | Mar 13, 2024 | Mar 14, 2024 | S | 733 | $94.31 | Sale −$69,129 | 170,486 | Yes | Form 4 |
| Steves SeanSr VP & COO of SW Ops | Mar 13, 2024 | Mar 14, 2024 | S | 224 | $94.35 | Sale −$21,134 | 7,264 | Yes | Form 4 |
| Drohan KevinVP & CHIEF ACCOUNTING OFFICER | Mar 13, 2024 | Mar 14, 2024 | S | 173 | $94.23 | Sale −$16,302 | 3,109 | Yes | Form 4 |
| Ligon PaulSR VP of Sustainable Growth | Mar 13, 2024 | Mar 14, 2024 | S | 164 | $94.38 | Sale −$15,478 | 22,919 | Yes | Form 4 |
| Casella John WCHIEF EXECUTIVE OFFICER | Mar 13, 2024 | Mar 14, 2024 | S | 1,673 | $94.13 | Sale −$157,479 | 35,189 | Yes | Form 4 |
| Sayward Shelley E.SENIOR VP & GENERAL COUNSEL | Mar 13, 2024 | Mar 14, 2024 | S | 371 | $94.32 | Sale −$34,993 | 19,411 | Yes | Form 4 |
| Casella Douglas RVICE CHAIRMAN, BD OF DIRECTORS | Mar 13, 2024 | Mar 14, 2024 | S | 674 | $94.06 | Sale −$63,396 | 135,826 | Yes | Form 4 |
| Helgeson Bradford JohnExecutive VP and CFO | Mar 12, 2024 | Mar 14, 2024 | A | 1,864 | $0.00 | $0 | 3,745 | No | Form 4 |
| Coletta EdmondPRESIDENT | Mar 12, 2024 | Mar 14, 2024 | A | 2,663 | $0.00 | $0 | 171,219 | Yes | Form 4 |
| Steves SeanSr VP & COO of SW Ops | Mar 12, 2024 | Mar 14, 2024 | A | 879 | $0.00 | $0 | 7,488 | Yes | Form 4 |
| Drohan KevinVP & CHIEF ACCOUNTING OFFICER | Mar 12, 2024 | Mar 14, 2024 | A | 533 | $0.00 | $0 | 3,282 | Yes | Form 4 |
| Ligon PaulSR VP of Sustainable Growth | Mar 12, 2024 | Mar 14, 2024 | A | 533 | $0.00 | $0 | 23,083 | Yes | Form 4 |
| Casella John WCHIEF EXECUTIVE OFFICER | Mar 12, 2024 | Mar 14, 2024 | A | 5,060 | $0.00 | $0 | 36,862 | Yes | Form 4 |
| Sayward Shelley E.SENIOR VP & GENERAL COUNSEL | Mar 12, 2024 | Mar 14, 2024 | A | 1,198 | $0.00 | $0 | 19,782 | Yes | Form 4 |
| Casella Douglas RVICE CHAIRMAN, BD OF DIRECTORS | Mar 12, 2024 | Mar 14, 2024 | A | 1,758 | $0.00 | $0 | 136,500 | Yes | Form 4 |
| Ligon PaulSR VP of Sustainable Growth | Feb 29, 2024 | Feb 29, 2024 | S | 605 | $89.06 | Sale −$53,881 | 22,550 | No | Form 4 |
| Steves SeanSr VP & COO of SW Ops | Feb 29, 2024 | Feb 29, 2024 | S | 358 | $89.34 | Sale −$31,984 | 6,609 | No | Form 4 |
| Sayward Shelley E.SENIOR VP & GENERAL COUNSEL | Feb 29, 2024 | Feb 29, 2024 | S | 1,662 | $90.00 | Sale −$149,580 | 18,584 | No | Form 4 |
| Coletta EdmondPRESIDENT | Feb 28, 2024 | Feb 29, 2024 | S | 8,271 | $90.30 | Sale −$746,871 | 168,556 | No | Form 4 |
| Casella John WCHIEF EXECUTIVE OFFICER | Feb 28, 2024 | Feb 29, 2024 | S | 20,300 | $90.27 | Sale −$1,832,481 | 31,802 | No | Form 4 |
| Ligon PaulSR VP of Sustainable Growth | Feb 27, 2024 | Feb 29, 2024 | A | 1,701 | $0.00 | $0 | 23,155 | No | Form 4 |
| Steves SeanSr VP & COO of SW Ops | Feb 27, 2024 | Feb 29, 2024 | A | 964 | $0.00 | $0 | 6,967 | No | Form 4 |
| Sayward Shelley E.SENIOR VP & GENERAL COUNSEL | Feb 27, 2024 | Feb 29, 2024 | A | 5,100 | $0.00 | $0 | 20,246 | No | Form 4 |
| Coletta EdmondPRESIDENT | Feb 27, 2024 | Feb 29, 2024 | A | 20,403 | $0.00 | $0 | 176,827 | No | Form 4 |
| Casella John WCHIEF EXECUTIVE OFFICER | Feb 27, 2024 | Feb 29, 2024 | A | 40,803 | $0.00 | $0 | 52,102 | No | Form 4 |
| Ligon PaulSR VP of Sustainable Growth | Dec 12, 2023 | Dec 14, 2023 | G | 100 | $0.00 | $0 | 21,454 | No | Form 4 |
| Casella Douglas RVICE CHAIRMAN, BD OF DIRECTORS | Nov 20, 2023 | Nov 22, 2023 | G | 137,000 | $0.00 | $0 | 57,100 | No | Form 4 |
| Casella Douglas RVICE CHAIRMAN, BD OF DIRECTORS | Nov 20, 2023 | Nov 22, 2023 | G | 137,000 | $0.00 | $0 | 137,000 | No | Form 4 |
| Helgeson Bradford JohnExecutive VP and CFO | Nov 6, 2023 | Nov 8, 2023 | A | 1,881 | $0.00 | $0 | 1,881 | No | Form 4 |
| Helgeson Bradford JohnExecutive VP and CFO | Nov 6, 2023 | Nov 8, 2023 | A · derivative | 17,500 | $79.72 | $1,395,100 | 17,500 | No | Form 4 |
| Casella Douglas RVICE CHAIRMAN, BD OF DIRECTORS | Sep 29, 2023 | Oct 3, 2023 | G | 131,000 | $0.00 | $0 | 169,000 | No | Form 4 |
| Casella Douglas RVICE CHAIRMAN, BD OF DIRECTORS | Sep 29, 2023 | Oct 3, 2023 | G | 131,000 | $0.00 | $0 | 131,000 | No | Form 4 |