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CWST CASELLA WASTE SYSTEMS INC Insider Trading

Latest: PRESIDENT & CEO Sold $1.1M of Shares · May 2026

Multiple insiders have been active at CASELLA WASTE SYSTEMS INC (CWST): 3 distinct insiders account for 0 buy filings and 10 sell filings as of May 2026. Its highest-significance filing in the last 90 days: PRESIDENT & CEO Edmond Coletta sold $1.1M, transaction dated May 2026.

10 filings analyzed · Latest 2026-05-22

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Buys
0
Sells
10
Insiders
3
Direction
Net selling

CASELLA WASTE SYSTEMS INC leadership

CEO
Edmond R. Coletta — Chief Executive Officer
CFO
Bradford J. Helgeson — Chief Financial Officer
General Counsel
Shelley E. Sayward — Senior Vice President and General Counsel
Chair
John W. Casella — Executive Chairman of the Board and Secretary

Historically, stocks have lagged the S&P 500 by a median ~3% over the 90 days after a medium insider sell (n ≈ 4,738, 2024-2026). Past results don't predict the future. How we measure this ↗

May 2026
2026-05-22
medium
PRESIDENT & CEO
12,500 shares
$1,119,523
@ $89.56
Significance 5

CEO Edmond Coletta sold 12,500 shares of CWST for $1,119,523.49 across 3 transactions at $89.56 blended average

Edmond Coletta, PRESIDENT & CEO, executed 3 separate sales totaling 12,500 shares for $1,119,523.49 on 2026-05-19 at a blended average price of $89.56. His post-transaction holdings remain substantial at 140,118 shares, representing an 8.2% reduction from prior holdings of 152,618 shares. The current stock price of $87.30 is 26.6% below the 52-week high of $118.91, and his sale prices of $89.03, $90.00, and $90.07 were executed in that elevated range relative to today's market. At the company level, fundamentals show a mixed picture: annual revenue growth of 18.0% demonstrates commercial momentum, yet the latest quarterly net income stands at $-5,539,000.00 against revenue of $457,328,000.00, and the P/E ratio of 727.50 reflects the negative earnings context. His prior sales at CWST show mixed timing outcomes—2 of 5 prior sells were well-timed at the 90-day mark, with the most recent sale on 2025-12-08 showing 30d +0.8% and 90d -6.0%, suggesting the stock declined after that trade.

December 2025
2025-12-09
low
PRESIDENT
7,000 shares
$700,490
@ $100.07
Significance 3

CWST President Coletta Edmond sold 7,000 shares at $100.07; stock now $96.62, down -19.7% from 52-week high.

Coletta Edmond, CWST President, sold 7,000 shares (7.0K shares) at $100.07 on 2025-12-08, reducing holdings by 4.7% to 141,093 shares. The sale occurred near the stock's 52-week high of $120.37 before the recent 19.7% decline to the current price of $96.62. Among his five prior sales at CWST, only one of five (20%) proved well-timed at the 90-day mark—a relatively low accuracy rate. His cross-ticker track record shows an 11.11% well-timed rate across 10 prior sells, suggesting this insider's sell timing has historically underperformed. The company's fundamentals show a P/E of 420.09 (extreme) against $485.4M quarterly revenue and +23.2% annual revenue growth, alongside a thin net income of $10.0M, indicating valuation stretched relative to earnings. The stock is up +9.7% over 30 days despite the broader 19.7% decline from its peak, creating ambiguity about inflection timing.

May 2025
2025-05-09
high
CHIEF EXECUTIVE OFFICER
18,093 shares
$2,168,808
@ $119.87
Significance 6

CEO John Casella sells 18,093 shares (61.3% of holdings) at $119.87; stock near 52-week high; P/E 515.22 despite -$4.8M net loss

CEO John W. Casella sold 18,093 shares at $119.87 on 2025-05-08, reducing his stake by 61.3% to 11,416 shares remaining. The sale occurred near the 52-week high ($120.37, just 1.6% below peak), following strong recent momentum (+6.6% in 30 days, +9.7% in 90 days). At same-ticker CWST history, his prior four measurable 90-day outcomes showed mixed results: two well-timed and two poorly timed, without a clear directional pattern. The company's fundamentals present a tension: annualized revenue growth of 23.2% and $417.1M quarterly revenue, yet the most recent quarter recorded a $4.8M net loss, and the P/E ratio of 515.22 reflects heavy valuation relative to current earnings. This large open-market sale by the chief executive during a peak-valuation period, while the company operates unprofitably, merits investor scrutiny of both the company's near-term profitability trajectory and the significance of this material reduction in insider ownership.

2025-05-07
medium
PRESIDENT
5,562 shares
$662,879
@ $119.18
Significance 4

CWST President Edmond sells 5,562 shares at $119.18 (near 52-week highs); holds 150,093 post-sale

Coletta Edmond, CWST President, sold 5,562 shares at $119.18, reducing his holdings by 3.6% to 150,093 shares. The sale occurred at $119.18, very close to the current price of $120.25 and near the 52-week high of $120.37, following a 15.6% 30-day price gain. Notably, Edmond has executed 5 prior sales at CWST since early March 2025, with 30-day post-sale returns ranging from +0.5% to +10.6%, indicating the stock continued rising after each prior sale. His cross-ticker track record shows 9 prior sells across all tickers with an average 90-day return of +8.1% and a 0.00% well-timed rate, meaning his sales historically have been followed by stock appreciation rather than declines. The company reports $417.1M in latest-quarter revenue with annual growth of +23.2%, though net income is currently negative at $-4.8M and the P/E stands at 522.83, reflecting a market valuation that has outpaced earnings."

March 2025
2025-03-14 10b5-1 Plan
low
PRESIDENT
6,292 shares
$661,355
@ $105.11
Significance 3

CWST: President Coletta Edmond sells 5,000 shares at $105.00 under pre-arranged 10b5-1 plan from 2022

Coletta Edmond, as President, sold 5,000 shares at $105.00 on 2025-03-13 for $525,000.00, reducing holdings from 160,655 shares to 155,655 shares. This transaction is governed by a pre-arranged 10b5-1 trading plan adopted on 2022-05-12, making it a scheduled disposition rather than a discretionary trading decision. Since the sale was executed under a pre-established plan, it reflects no new judgment about current company value or prospects. The sale represents a minor reduction of 3.1% of pre-transaction holdings, consistent with systematic plan execution.

2025-03-12
medium
VICE CHAIRMAN, BD OF DIRECTORS
5,387 shares
$603,028
@ $111.94
Significance 5

VP Chairman Casella sells 5,387 shares at blended average $111.94 for $603,028.32 on March 10, 2025

Douglas R. Casella, Vice Chairman of Casella Waste Systems, executed two separate sales totaling 5,387 shares (5.4K shares) for $603,028.32 on 2025-03-10 at a blended average price of $111.94. The current stock price of $105.14 is 9.2% below the 52-week high of $115.86, and the sales occurred when the stock was trading near the upper end of its recent range. His same-ticker history shows 4 of 5 prior sells were well-timed at the 90-day mark, indicating a pattern of selling ahead of subsequent declines; however, this observation reflects his historical behavior and does not characterize the timing of the current transaction itself. Post-transaction holdings remain substantial at 107,875 shares (107.9K shares), representing a 4.8% reduction from pre-transaction levels. The company's fundamentals show strong revenue growth of 23.2% year-over-year and $411.6M in latest quarterly revenue, though a P/E ratio of 457.13 reflects an extremely rich valuation.

November 2024
2024-11-25
medium
VICE CHAIRMAN, BD OF DIRECTORS
20,000 shares
$2,245,200
@ $112.26
Significance 5

Vice Chairman Douglas R Casella sold 20,000 CWST shares at $112.26 on 2024-11-22 for $2.2M; stock at 52-week high ($112.91).

Douglas R Casella, Vice Chairman, sold 20,000 shares (reducing holdings by -14.8% from 135,435 to 115,435 shares) at $112.26, a price within 0.0% of the 52-week high of $112.91. The sale occurred after a 12.9% gain over 30 days and 6.6% gain over 90 days. His prior trades at CWST show a consistent pattern: all 4 prior sell transactions were followed by negative 90-day returns, indicating well-timed exits. Notably, the stock is currently priced at the 52-week high, and this sale represents a reduction of material size from his holdings. The underlying business shows strong revenue growth of +16.5% year-over-year, though the P/E ratio is elevated at 245.46, warranting observation of whether near-peak-price sales by the Vice Chairman signal discretionary positioning in a high-valuation environment.

2024-11-18
high
CHIEF EXECUTIVE OFFICER
27,940 shares
$2,973,535
@ $106.43
Significance 6

CEO John Casella sold 27,940 shares for $2,973,534.83 across three transactions Nov 14-15, reducing holdings by 72.3% to 10.7K shares.

John W. Casella, Chief Executive Officer of Casella Waste Systems Inc, executed three separate sales totaling 27,940 shares for $2,973,534.83, reducing his holdings from 38,669 shares to 10,729 shares—a 72.3% reduction in his position. The sales occurred at prices ranging from $106.32 to $108.84, with a blended average of $106.43, near the current price of $108.01 and within 1.7% of the 52-week high of $109.88. Examining his prior trading history at CWST, 2 of 3 prior measurable sales were well-timed at the 90-day mark (with negative post-sale returns), though his cross-ticker track record shows a 66.67% well-timed sell rate with an average 90-day return of -1.6%. The company's valuation context shows a P/E of 234.80 paired with modest net income of $5,771,000 against quarterly revenue of $411,627,000, suggesting stretched profitability metrics relative to scale. This large discretionary reduction in the CEO's direct ownership merits investor attention to understand strategic positioning and forward guidance."

2024-11-06
high
CHIEF EXECUTIVE OFFICER
23,509 shares
$2,369,564
@ $100.79
Significance 6

CEO Casella sells 23,509 shares at blended $100.79 for $2.4M, reducing stake by 68.7%

John W. Casella, Chief Executive Officer of CASELLA WASTE SYSTEMS INC, executed 2 separate sales totaling 23,509 shares for $2,369,563.67 on 2024-11-05, at a blended average price of $100.79. This represents a 68.7% reduction in his post-transaction holdings to 10,729 shares. At the current price of $106.91, the shares he sold are now worth approximately $251,000 more, but evaluating timing against his prior transaction history at CWST shows mixed results: his 2024-02-28 sale gained 9.5% over 30 days and 10.2% over 90 days (poorly timed), while his August 2023 sales declined 1.3%–2.2% over 30 days and 7.3%–7.6% over 90 days (well-timed). The company's valuation metrics remain elevated, with a P/E of 232.41 despite solid revenue growth of 16.5% annually, warranting monitoring of whether the substantial reduction in insider holdings reflects changed conviction or routine liquidity management.

2024-11-05
medium
PRESIDENT
20,000 shares
$2,002,167
@ $100.11
Significance 4

CWST President Coletta Edmond sells 20,000 shares ($2.0M) in 2 transactions at blended average $100.11

Coletta Edmond, President of Casella Waste Systems, executed 2 separate sales totaling 20,000 shares (20.0K shares) for $2,002,166.76 on 2024-11-04, reducing his holdings by 11.8% to 149,034 shares. At the transaction prices of $100.09 and $100.62 (blended $100.11), the sales occurred just below the current price of $101.82 and within the 52-week range. His prior trade history at CWST shows mixed timing results: a February 2024 sale was well-timed with a 90d return of +10.1%, while an August 2023 sale was poorly timed with a 90d return of -2.0%. The company reports strong fundamentals with annual revenue growth of +16.5% ($411.6M latest quarter), though the elevated P/E of 221.35 relative to net income of $5.8M may merit investor attention.

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