The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
| Date | Insider | Role | Action | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 8, 2026 | Green Emily Nagle | Director | Gift(G) | 600 | — | $0 |
| Jun 4, 2026 | Sova Gary | Director | Grant(A) | 2K | $83.65 | $150K |
| Jun 4, 2026 | Casella Douglas R | VICE CHAIRMAN, BD OF DIRECTORS, Director | Grant(A) | 2K | $83.65 | $150K |
| Jun 4, 2026 | Doody Joseph | Director | Grant(A) | 2K | $83.65 | $150K |
| Jun 4, 2026 | Hulligan William P | Director | Grant(A) | 2K | $83.65 | $150K |
| Jun 4, 2026 | Green Emily Nagle | Director | Grant(A) | 2K | $83.65 | $150K |
| Jun 4, 2026 | Kirk Rose M. | Director | Grant(A) | 2K | $83.65 | $150K |
| Jun 4, 2026 | Burke Michael K | Director | Grant(A) | 2K | $83.65 | $150K |
| Jun 4, 2026 | Battles Michael Louis | Director | Grant(A) | 2K | $83.65 | $150K |
| Jun 1, 2026 | Casella John W | Director | Gift(G) | 36K | — | $0 |
| Jun 1, 2026 | Casella John W | Director | Gift(G) | 36K | — | $0 |
| Jun 1, 2026 | Casella John W | Director | Gift(G) | 31K | — | $0 |
| Jun 1, 2026 | Casella John W | Director | Gift(G) | 31K | — | $0 |
| May 26, 2026 | Burke Michael K | Director | Sell(S) | 2K | $87.56 | $202K |
| May 19, 2026 | Coletta Edmond | PRESIDENT & CEO | Sell(S) | 6K | $89.03 | $534K |
| May 19, 2026 | Coletta Edmond | PRESIDENT & CEO | Sell(S) | 2K | $90.00 | $143K |
| May 19, 2026 | Coletta Edmond | PRESIDENT & CEO | Sell(S) | 5K | $90.07 | $442K |
| Mar 18, 2026 | Casella Douglas R | VICE CHAIRMAN, BD OF DIRECTORS, Director | Gift(G) | 40K | — | $0 |
| Mar 17, 2026 | Casella Douglas R | VICE CHAIRMAN, BD OF DIRECTORS, Director | Gift(G) | 33K | — | $0 |
| Mar 16, 2026 | Casella John W | Director | Sell(S) | 2K | $87.77 | $153K |
| Mar 16, 2026 | Coletta Edmond | PRESIDENT & CEO | Sell(S) | 988 | $87.81 | $87K |
| Mar 16, 2026 | Helgeson Bradford John | Executive VP and CFO | Sell(S) | 405 | $87.73 | $36K |
| Mar 16, 2026 | Sayward Shelley E. | SENIOR VP & GENERAL COUNSEL | Sell(S) | 362 | $87.73 | $32K |
| Mar 16, 2026 | Drohan Kevin | VP & CHIEF ACCOUNTING OFFICER | Sell(S) | 85 | $87.73 | $7K |
| Mar 16, 2026 | Steves Sean | Sr VP & COO of SW Ops | Sell(S) | 197 | $87.80 | $17K |
| Mar 16, 2026 | Rains Christopher Alan | Sr. VP & Chief Revenue Officer | Grant(A) | 989 | — | $0 |
| Mar 12, 2026 | Casella John W | Director | Grant(A) | 6K | — | $0 |
| Mar 12, 2026 | Casella John W | Director | Sell(S) | 963 | $90.06 | $87K |
| Mar 12, 2026 | Coletta Edmond | PRESIDENT & CEO | Sell(S) | 377 | $89.80 | $34K |
| Mar 12, 2026 | Coletta Edmond | PRESIDENT & CEO | Grant(A) | 7K | — | $0 |
| Mar 12, 2026 | Helgeson Bradford John | Executive VP and CFO | Grant(A) | 3K | — | $0 |
| Mar 12, 2026 | Sayward Shelley E. | SENIOR VP & GENERAL COUNSEL | Sell(S) | 129 | $89.71 | $12K |
| Mar 12, 2026 | Sayward Shelley E. | SENIOR VP & GENERAL COUNSEL | Grant(A) | 2K | — | $0 |
| Mar 12, 2026 | Drohan Kevin | VP & CHIEF ACCOUNTING OFFICER | Grant(A) | 551 | — | $0 |
| Mar 12, 2026 | Drohan Kevin | VP & CHIEF ACCOUNTING OFFICER | Sell(S) | 55 | $89.52 | $5K |
| Mar 12, 2026 | Steves Sean | Sr VP & COO of SW Ops | Sell(S) | 97 | $89.71 | $9K |
| Feb 27, 2026 | Casella John W | CHIEF EXECUTIVE OFFICER, Director | Sell(S) | 7K | $93.10 | $626K |
| Feb 27, 2026 | Coletta Edmond | PRESIDENT | Sell(S) | 4K | $93.70 | $357K |
| Feb 27, 2026 | Sayward Shelley E. | SENIOR VP & GENERAL COUNSEL | Sell(S) | 2K | $92.91 | $148K |
| Feb 27, 2026 | Drohan Kevin | VP & CHIEF ACCOUNTING OFFICER | Sell(S) | 675 | $92.61 | $63K |
| Feb 27, 2026 | Steves Sean | Sr VP & COO of SW Ops | Sell(S) | 1K | $92.89 | $111K |
| Feb 26, 2026 | Casella John W | CHIEF EXECUTIVE OFFICER, Director | Grant(A) | 23K | — | $0 |
| Feb 26, 2026 | Coletta Edmond | PRESIDENT | Grant(A) | 10K | — | $0 |
| Feb 26, 2026 | Sayward Shelley E. | SENIOR VP & GENERAL COUNSEL | Grant(A) | 5K | — | $0 |
| Feb 26, 2026 | Drohan Kevin | VP & CHIEF ACCOUNTING OFFICER | Grant(A) | 2K | — | $0 |
| Feb 26, 2026 | Steves Sean | Sr VP & COO of SW Ops | Grant(A) | 3K | — | $0 |
| Dec 8, 2025 | Casella Douglas R | VICE CHAIRMAN, BD OF DIRECTORS, Director | Gift(G) | 4K | — | $0 |
| Dec 8, 2025 | Coletta Edmond | PRESIDENT | Sell(S) | 7K | $100.07 | $700K |
| Dec 8, 2025 | Coletta Edmond | PRESIDENT | Gift(G) | 2K | — | $0 |
| Nov 7, 2025 | Helgeson Bradford John | Executive VP and CFO | Sell(S) | 262 | $87.65 | $23K |
| Nov 5, 2025 | Green Emily Nagle | Director | Gift(G) | 1K | — | $0 |
| Nov 4, 2025 | Green Emily Nagle | Director | Sell(S) | 1K | $89.38 | $100K |
| Aug 4, 2025 | Ligon Paul | SR VP of Sustainable Growth | Sell(S) | 1K | $102.84 | $103K |
| Jun 5, 2025 | Kirk Rose M. | Director | Grant(A) | 1K | $115.17 | $140K |
| Jun 5, 2025 | Battles Michael Louis | Director | Grant(A) | 1K | $115.17 | $140K |
| Jun 5, 2025 | Burke Michael K | Director | Grant(A) | 1K | $115.17 | $140K |
| Jun 5, 2025 | Sova Gary | Director | Grant(A) | 1K | $115.17 | $140K |
| Jun 5, 2025 | Green Emily Nagle | Director | Grant(A) | 1K | $115.17 | $140K |
| Jun 5, 2025 | Doody Joseph | Director | Grant(A) | 434 | $115.17 | $50K |
| Jun 5, 2025 | Doody Joseph | Director | Grant(A) | 1K | $115.17 | $140K |
| Jun 5, 2025 | Hulligan William P | Director | Grant(A) | 1K | $115.17 | $140K |
| Jun 3, 2025 | Ligon Paul | SR VP of Sustainable Growth | Sell(S) | 1K | $116.98 | $117K |
| May 8, 2025 | Casella John W | CHIEF EXECUTIVE OFFICER, Director | Sell(S) | 18K | $119.87 | $2.2M |
| May 6, 2025 | Coletta Edmond | PRESIDENT | Sell(S) | 6K | $119.18 | $663K |
| Apr 16, 2025 | Ligon Paul | SR VP of Sustainable Growth | Sell(S) | 100 | $120.32 | $12K |
| Apr 16, 2025 | Ligon Paul | SR VP of Sustainable Growth | Sell(S) | 700 | $119.62 | $84K |
| Apr 16, 2025 | Ligon Paul | SR VP of Sustainable Growth | Sell(S) | 800 | $117.65 | $94K |
| Apr 16, 2025 | Ligon Paul | SR VP of Sustainable Growth | Sell(S) | 400 | $118.66 | $47K |
| Mar 13, 2025 | Casella Douglas R | VICE CHAIRMAN, BD OF DIRECTORS, Director | Sell(S) | 200 | $103.93 | $21K |
| Mar 13, 2025 | Helgeson Bradford John | Executive VP and CFO | Sell(S) | 197 | $103.87 | $20K |
| Mar 13, 2025 | Steves Sean | Sr VP & COO of SW Ops | Sell(S) | 108 | $104.13 | $11K |
| Mar 13, 2025 | Sayward Shelley E. | SENIOR VP & GENERAL COUNSEL | Sell(S) | 206 | $103.95 | $21K |
| Mar 13, 2025 | Drohan Kevin | VP & CHIEF ACCOUNTING OFFICER | Sell(S) | 57 | $104.00 | $6K |
| Mar 13, 2025 | Ligon Paul | SR VP of Sustainable Growth | Sell(S) | 57 | $104.06 | $6K |
| Mar 13, 2025 | Casella John W | CHIEF EXECUTIVE OFFICER, Director | Sell(S) | 865 | $104.23 | $90K |
| Mar 13, 2025 | Coletta Edmond | PRESIDENT | Sell(S) | 5K | $105.00 | $525K |
| Mar 13, 2025 | Coletta Edmond | PRESIDENT | Sell(S) | 456 | $104.07 | $47K |
| Mar 12, 2025 | Casella Douglas R | VICE CHAIRMAN, BD OF DIRECTORS, Director | Grant(A) | 2K | — | $0 |
| Mar 12, 2025 | Casella Douglas R | VICE CHAIRMAN, BD OF DIRECTORS, Director | Sell(S) | 272 | $107.26 | $29K |
| Mar 12, 2025 | Casella Douglas R | VICE CHAIRMAN, BD OF DIRECTORS, Director | Sell(S) | 224 | $106.33 | $24K |
| Mar 12, 2025 | Helgeson Bradford John | Executive VP and CFO | Grant(A) | 2K | — | $0 |
| Mar 12, 2025 | Steves Sean | Sr VP & COO of SW Ops | Sell(S) | 100 | $106.98 | $11K |
| Mar 12, 2025 | Steves Sean | Sr VP & COO of SW Ops | Grant(A) | 951 | — | $0 |
| Mar 12, 2025 | Steves Sean | Sr VP & COO of SW Ops | Sell(S) | 71 | $106.18 | $8K |
| Mar 12, 2025 | Sayward Shelley E. | SENIOR VP & GENERAL COUNSEL | Sell(S) | 215 | $106.98 | $23K |
| Mar 12, 2025 | Sayward Shelley E. | SENIOR VP & GENERAL COUNSEL | Sell(S) | 166 | $106.18 | $18K |
| Mar 12, 2025 | Sayward Shelley E. | SENIOR VP & GENERAL COUNSEL | Grant(A) | 1K | — | $0 |
| Mar 12, 2025 | Drohan Kevin | VP & CHIEF ACCOUNTING OFFICER | Sell(S) | 72 | $106.97 | $8K |
| Mar 12, 2025 | Drohan Kevin | VP & CHIEF ACCOUNTING OFFICER | Sell(S) | 59 | $106.37 | $6K |
| Mar 12, 2025 | Drohan Kevin | VP & CHIEF ACCOUNTING OFFICER | Grant(A) | 475 | — | $0 |
| Mar 12, 2025 | Ligon Paul | SR VP of Sustainable Growth | Grant(A) | 475 | — | $0 |
| Mar 12, 2025 | Ligon Paul | SR VP of Sustainable Growth | Sell(S) | 54 | $106.89 | $6K |
| Mar 12, 2025 | Ligon Paul | SR VP of Sustainable Growth | Sell(S) | 71 | $106.18 | $8K |
| Mar 12, 2025 | Casella John W | CHIEF EXECUTIVE OFFICER, Director | Grant(A) | 6K | — | $0 |
| Mar 12, 2025 | Casella John W | CHIEF EXECUTIVE OFFICER, Director | Sell(S) | 1K | $107.94 | $116K |
| Mar 12, 2025 | Casella John W | CHIEF EXECUTIVE OFFICER, Director | Sell(S) | 752 | $106.38 | $80K |
| Mar 12, 2025 | Coletta Edmond | PRESIDENT | Grant(A) | 4K | — | $0 |
| Mar 12, 2025 | Coletta Edmond | PRESIDENT | Sell(S) | 459 | $106.33 | $49K |
| Mar 12, 2025 | Coletta Edmond | PRESIDENT | Sell(S) | 377 | $106.35 | $40K |
| Mar 10, 2025 | Casella Douglas R | VICE CHAIRMAN, BD OF DIRECTORS, Director | Sell(S) | 2K | $111.32 | $248K |
Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.
Coverage: Form 4 filings indexed 2021-01-04 → 2026-07-20. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).