🕵️ Casella Waste Systems Inc ($CWST)
SEC insider & ownership activity, last 12 months · CIK 911177 · every row links its SEC filing
Over the last 12 months insiders sold $4.0M with no open-market buying against it. Coletta Edmond sold $2.3M (Dec–May). No red-flag 8-Ks in the window.
🚨 6 signals active —
planned-vs-executed verdicts, pre-event flags, and cluster context live in the
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Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 9 sellers, $4.0M (24 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Coletta Edmond | 0 | – | 7 | $2.3M | May 19, 2026 |
| John W. Casella | 0 | – | 3 | $866K | Mar 16, 2026 |
| Michael K. Burke | 0 | – | 1 | $202K | May 26, 2026 |
| Shelley E. Sayward | 0 | – | 3 | $191K | Mar 16, 2026 |
| Steves Sean | 0 | – | 3 | $137K | Mar 16, 2026 |
| Paul Ligon | 0 | – | 1 | $103K | Aug 4, 2025 |
| Green Emily Nagle | 0 | – | 1 | $100K | Nov 4, 2025 |
| Drohan Kevin | 0 | – | 3 | $75K | Mar 16, 2026 |
| Helgeson Bradford John | 0 | – | 2 | $58K | Mar 16, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Blackrock, Inc. | 14.3% | 13G | Jan 8, 2026 | filing ↗ | |
| Wasatch Advisors LP | 5.6% | 13G | Jul 9, 2026 | filing ↗ | |
| Conestoga Capital Advisors | 5.5% | 13G | Jan 10, 2025 | filing ↗ | |
| Vanguard Portfolio Management | 5.5% | 13G | Apr 29, 2026 | filing ↗ | |
| Vanguard Capital Management | 5.2% | 13G | Apr 29, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Michael Burke | $201K | May 26, 2026 | filing ↗ |
| Coletta Edmond | $677K | May 19, 2026 | filing ↗ |
| Edmond Coletta | $426K | May 19, 2026 | filing ↗ |
| Coletta Edmond | $87K | Mar 16, 2026 | filing ↗ |
| Helgeson Bradford John | $36K | Mar 16, 2026 | filing ↗ |
| Steves Sean | $17K | Mar 16, 2026 | filing ↗ |
| Drohan Kevin | $7K | Mar 16, 2026 | filing ↗ |
| Shelley E. Sayward | $32K | Mar 16, 2026 | filing ↗ |
| John W. Casella | $153K | Mar 16, 2026 | filing ↗ |
| John W. Casella | $87K | Mar 12, 2026 | filing ↗ |
| Coletta Edmond | $34K | Mar 12, 2026 | filing ↗ |
| Steves Sean | $9K | Mar 12, 2026 | filing ↗ |
| Shelley E. Sayward | $12K | Mar 12, 2026 | filing ↗ |
| Drohan Kevin | $5K | Mar 12, 2026 | filing ↗ |
| John W. Casella | $644K | Feb 27, 2026 | filing ↗ |
| Shelley E. Sayward | $148K | Feb 27, 2026 | filing ↗ |
| Steves Sean | $111K | Feb 27, 2026 | filing ↗ |
| Coletta Edmond | $376K | Feb 27, 2026 | filing ↗ |
| Drohan Kevin | $63K | Feb 27, 2026 | filing ↗ |
| Edmond R. Coletta | $695K | Dec 8, 2025 | filing ↗ |
| Paul Ligon | $103K | Aug 4, 2025 | filing ↗ |
| Edmond Coletta | $136K | Mar 12, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Officer/director changes (5.02) | Jun 26, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jun 26, 2026 | filing ↗ |
| Shareholder vote (5.07) | Jun 4, 2026 | filing ↗ |
| Other events (8.01) | Jun 1, 2026 | filing ↗ |
| Other events (8.01) | May 27, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 27, 2026 | filing ↗ |
| Other events (8.01) | May 11, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 11, 2026 | filing ↗ |
| Earnings (2.02) | Apr 30, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 30, 2026 | filing ↗ |
| Material agreement (1.01) | Apr 20, 2026 | filing ↗ |
| New financial obligation (2.03) | Apr 20, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 20, 2026 | filing ↗ |
| Officer/director changes (5.02) | Mar 6, 2026 | filing ↗ |
| Earnings (2.02) | Feb 19, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 19, 2026 | filing ↗ |
| Earnings (2.02) | Oct 30, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 30, 2025 | filing ↗ |
| Other events (8.01) | Sep 2, 2025 | filing ↗ |
| Other events (8.01) | Aug 28, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 28, 2025 | filing ↗ |
| Other events (8.01) | Aug 18, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 18, 2025 | filing ↗ |
| Officer/director changes (5.02) | Aug 1, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Aug 1, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 1, 2025 | filing ↗ |
| Other events (8.01) | Aug 1, 2025 | filing ↗ |
| Other events (8.01) | Jul 31, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 31, 2025 | filing ↗ |
| Earnings (2.02) | Jul 31, 2025 | filing ↗ |