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Casella Waste Systems stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions+11.3% to $98.21
Casella Waste Systems (CWST) stock rose 11% over the last 252 sessions, to $98.21. On the way it reported 3 quarters, its insiders filed 11 open-market trades and 5 Form 144 notices of planned sales, and the company filed 4 material 8-Ks. Each is marked on the price and listed with what the stock did next.
Each mark, and what followed
| Date | Kind | What | Next session | 5 sessions | 21 sessions |
|---|---|---|---|---|---|
| Sep 3, 2026 | Form 144 | Form 144: Michael Burke plans to sell $106K | +2.7% (+1.7% vs SPY) | −3.8% (−2.8% vs SPY) | −12.1% (−12.9% vs SPY) |
| Sep 3, 2026 | Insider sale | Burke Michael K sold $105K | +2.7% (+1.7% vs SPY) | −3.8% (−2.8% vs SPY) | −12.1% (−12.9% vs SPY) |
| Aug 26, 2026 | Form 144 | Form 144: Michael Burke plans to sell $103K | +0.3% (+0.3% vs SPY) | −0.8% (−0.3% vs SPY) | −10.8% (−11.2% vs SPY) |
| Aug 26, 2026 | Insider sale | Burke Michael K sold $102K | +0.3% (+0.3% vs SPY) | −0.8% (−0.3% vs SPY) | −10.8% (−11.2% vs SPY) |
| Aug 14, 2026 | Form 144 | Form 144: Douglas Casella plans to sell $122K | −0.3% (−0.1% vs SPY) | +2.2% (+4.2% vs SPY) | −0.1% (+2.2% vs SPY) |
| Aug 14, 2026 | Insider sale | Casella Douglas R sold $122K | −0.3% (−0.1% vs SPY) | +2.2% (+4.2% vs SPY) | −0.1% (+2.2% vs SPY) |
| Aug 13, 2026 | Form 144 | Form 144: Douglas Casella plans to sell $1.2M | +0.5% (−0.2% vs SPY) | +2.5% (+2.9% vs SPY) | −0.7% (+0.4% vs SPY) |
| Aug 13, 2026 | Form 144 | Form 144: Douglas R Casella plans to sell $167K | +0.5% (−0.2% vs SPY) | +2.5% (+2.9% vs SPY) | −0.7% (+0.4% vs SPY) |
| Aug 13, 2026 | Insider sale | Casella Douglas R sold $1.4M | +0.5% (−0.2% vs SPY) | +2.5% (+2.9% vs SPY) | −0.7% (+0.4% vs SPY) |
| Aug 6, 2026 | Earnings | Earnings: beat the EPS estimate by 36.1% | +0.5% (+0.6% vs SPY) | +0.6% (+0.2% vs SPY) | +6.4% (+5.9% vs SPY) |
| Jul 20, 2026 | 8-K | Directors and officers: departures, appointments, pay | −3.3% (−4.1% vs SPY) | −4.7% (−4.3% vs SPY) | −4.0% (−7.3% vs SPY) |
| Jul 1, 2026 | 8-K | Directors and officers: departures, appointments, pay | −1.7% (−1.5% vs SPY) | +2.0% (+2.1% vs SPY) | −8.0% (−7.3% vs SPY) |
| May 26, 2026 | Insider sale | Burke Michael K sold $202K | −0.3% (−1.0% vs SPY) | −2.7% (−4.4% vs SPY) | +4.3% (+5.7% vs SPY) |
| May 19, 2026 | Insider sale | Coletta Edmond sold $1.1M | −1.6% (−0.9% vs SPY) | −1.1% (−2.7% vs SPY) | −2.3% (−2.6% vs SPY) |
| Apr 30, 2026 | Earnings | Earnings: beat the EPS estimate by 69.6% | +1.4% (+0.5% vs SPY) | +8.0% (+4.9% vs SPY) | +5.1% (−1.0% vs SPY) |
| Apr 22, 2026 | 8-K | Material definitive agreement | +3.7% (+4.1% vs SPY) | −3.4% (−3.5% vs SPY) | +7.6% (+3.3% vs SPY) |
| Mar 10, 2026 | 8-K | Directors and officers: departures, appointments, pay | −7.1% (−7.0% vs SPY) | −7.9% (−6.5% vs SPY) | −9.9% (−9.8% vs SPY) |
| Feb 27, 2026 | Insider sale | Steves Sean sold $111K | +1.1% (+1.6% vs SPY) | +5.6% (+6.8% vs SPY) | −20.6% (−12.5% vs SPY) |
| Feb 27, 2026 | Insider sale | Sayward Shelley E. sold $148K | +1.1% (+1.6% vs SPY) | +5.6% (+6.8% vs SPY) | −20.6% (−12.5% vs SPY) |
| Feb 27, 2026 | Insider sale | Drohan Kevin sold $63K | +1.1% (+1.6% vs SPY) | +5.6% (+6.8% vs SPY) | −20.6% (−12.5% vs SPY) |
| Feb 27, 2026 | Insider sale | Coletta Edmond sold $357K | +1.1% (+1.6% vs SPY) | +5.6% (+6.8% vs SPY) | −20.6% (−12.5% vs SPY) |
| Feb 27, 2026 | Insider sale | Casella John W sold $626K | +1.1% (+1.6% vs SPY) | +5.6% (+6.8% vs SPY) | −20.6% (−12.5% vs SPY) |
| Feb 19, 2026 | Earnings | Earnings: beat the EPS estimate by 33.6% | −1.0% (−0.8% vs SPY) | −13.9% (−14.8% vs SPY) | −19.4% (−15.5% vs SPY) |
Insiders’ record here
In the year on the chart, Casella Waste Systems' insiders reported 0 open-market buys ($0) and 11 sales ($4.3M). Of the 7 old enough to score, 5 were followed by the stock doing what the trade implied over the next 63 sessions (beating SPY after a buy, lagging it after a sale); the median excess return after a buy was — and after a sale −22.1%.
Across the whole universe (19,782 scored trades), insider buys beat the market 46% of the time and sales were followed by a lagging stock 61% of the time; buys of $1M or more 39%. Every pattern →
What this kind of 8-K usually did
| Item | 8-Ks | Next session, median | Up next session | 21 sessions, median | Typical size |
|---|---|---|---|---|---|
| 5.02 Directors and officers: departures, appointments, pay | 39,174 | −0.1% | 48% | +0.7% | ±1.4% |
| 1.01 Material definitive agreement | 23,525 | 0.0% | 51% | +1.0% | ±1.4% |
| 2.03 New debt or off-balance-sheet obligation | 13,268 | 0.0% | 50% | +1.2% | ±1.3% |
Across every company in the move-odds universe, measured from the close before the filing. Every 8-K item ranked →
Report card: every quarter against the estimate → Casella Waste Systems: every quarter → Live insider trades →
Prices are daily closes; filings and trades are as filed with the SEC (Form 4 within two business days of the trade, 8-K within four of the event). Moves after a mark are the stock's close-to-close change and the same for SPY; they describe the record, not what the next one will do. Not investment advice.