Casella Waste Systems, Inc. (CWST) Insider Trading
Over the last 3 months, CWST insiders made 0 open-market buys and 15 sales, a net sale of -$1.8M (SEC Form 4). Over the last 6 months, 316 institutions increased and 255 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
15
Net (3m)
-$1.8M
Insider trades by month Buys Sells
Jun
Aug
Nov
Dec
Mar
May
Context3-month price -14.2%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| May 27, 2026 | BURKE MICHAEL Kdirector | Sell | 2,305 | $87.56 |
| May 22, 2026 | Coletta Edmondofficer: PRESIDENT & CEO | Sell | 4,907 | $90.07 |
| May 22, 2026 | Coletta Edmondofficer: PRESIDENT & CEO | Sell | 6,000 | $89.03 |
| May 22, 2026 | Coletta Edmondofficer: PRESIDENT & CEO | Sell | 1,593 | $90.00 |
| Mar 17, 2026 | Rains Christopher Alanofficer: Sr. VP & Chief Revenue Officer | Grant | 989 | — |
| Mar 16, 2026 | CASELLA JOHN Wdirector | Sell | 1,744 | $87.77 |
| Mar 16, 2026 | Steves Seanofficer: Sr VP & COO of SW Ops | Sell | 97 | $89.71 |
| Mar 16, 2026 | Helgeson Bradford Johnofficer: Executive VP and CFO | Grant | 2,756 | — |
| Mar 16, 2026 | Drohan Kevinofficer: VP & CHIEF ACCOUNTING OFFICER | Sell | 55 | $89.52 |
| Mar 16, 2026 | Sayward Shelley E.officer: SENIOR VP & GENERAL COUNSEL | Sell | 129 | $89.71 |
| Mar 16, 2026 | Helgeson Bradford Johnofficer: Executive VP and CFO | Sell | 405 | $87.73 |
| Mar 16, 2026 | Coletta Edmondofficer: PRESIDENT & CEO | Sell | 377 | $89.80 |
| Mar 16, 2026 | Drohan Kevinofficer: VP & CHIEF ACCOUNTING OFFICER | Sell | 85 | $87.73 |
| Mar 16, 2026 | CASELLA JOHN Wdirector | Grant | 5,513 | — |
| Mar 16, 2026 | Sayward Shelley E.officer: SENIOR VP & GENERAL COUNSEL | Sell | 362 | $87.73 |
| Mar 16, 2026 | Drohan Kevinofficer: VP & CHIEF ACCOUNTING OFFICER | Grant | 551 | — |
| Mar 16, 2026 | Coletta Edmondofficer: PRESIDENT & CEO | Grant | 6,892 | — |
| Mar 16, 2026 | CASELLA JOHN Wdirector | Sell | 963 | $90.06 |
| Mar 16, 2026 | Steves Seanofficer: Sr VP & COO of SW Ops | Sell | 197 | $87.80 |
| Mar 16, 2026 | Coletta Edmondofficer: PRESIDENT & CEO | Sell | 988 | $87.81 |
| Mar 16, 2026 | Sayward Shelley E.officer: SENIOR VP & GENERAL COUNSEL | Grant | 1,654 | — |
| Mar 2, 2026 | Coletta Edmondofficer: PRESIDENT | Sell | 3,812 | $93.70 |
| Mar 2, 2026 | CASELLA JOHN Wdirector, officer: CHIEF EXECUTIVE OFFICER | Sell | 6,726 | $93.10 |
| Mar 2, 2026 | Steves Seanofficer: Sr VP & COO of SW Ops | Sell | 1,199 | $92.89 |
| Mar 2, 2026 | Drohan Kevinofficer: VP & CHIEF ACCOUNTING OFFICER | Sell | 675 | $92.61 |
| Mar 2, 2026 | Sayward Shelley E.officer: SENIOR VP & GENERAL COUNSEL | Sell | 1,591 | $92.91 |
| Mar 2, 2026 | Coletta Edmondofficer: PRESIDENT | Grant | 9,810 | — |
| Mar 2, 2026 | Drohan Kevinofficer: VP & CHIEF ACCOUNTING OFFICER | Grant | 2,452 | — |
| Mar 2, 2026 | Sayward Shelley E.officer: SENIOR VP & GENERAL COUNSEL | Grant | 4,598 | — |
| Mar 2, 2026 | CASELLA JOHN Wdirector, officer: CHIEF EXECUTIVE OFFICER | Grant | 23,299 | — |
Source: CWST SEC Form 4 filings, latest May 27, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their CWST positions over the last 6 months (SEC Form 13F).
Increased
316
New positions
132
Reduced
255
Sold out
115
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BLACKROCK, INC. | Increased | 9.1M | Feb 12, 2026 |
| BLACKROCK, INC. | Reduced | 9.0M | May 13, 2026 |
| VANGUARD GROUP INC | Increased | 6.6M | Jan 29, 2026 |
| WASATCH ADVISORS LP | Increased | 3.8M | Feb 12, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 3.4M | May 8, 2026 |
| CONESTOGA CAPITAL ADVISORS, LLC | Increased | 2.8M | Apr 24, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 2.8M | May 15, 2026 |
| CONESTOGA CAPITAL ADVISORS, LLC | Reduced | 2.8M | Feb 2, 2026 |
| INVESCO LTD. | Increased | 2.7M | Feb 19, 2026 |
| WASATCH ADVISORS LP | Reduced | 2.6M | Apr 21, 2026 |
| CAPITAL RESEARCH GLOBAL INVESTORS | Increased | 2.5M | Feb 11, 2026 |
| STATE STREET CORP | Increased | 2.4M | May 15, 2026 |
| CAPITAL RESEARCH GLOBAL INVESTORS | Reduced | 2.3M | May 13, 2026 |
| STATE STREET CORP | Increased | 2.3M | Feb 13, 2026 |
| CAPITAL INTERNATIONAL INVESTORS | Increased | 2.0M | Feb 11, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.