CWST · Insider Trading

Casella Waste Systems Inc

Every open-market purchase and sale reported by CWST officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings
50
most recent
Open-Market Buys
0
code P
Sales
13
code S
Reporting Insiders
16
current holders
CWST — Recent Form 4 Transactions (latest 2026-09-03)
FiledInsiderRole TypeSharesValue
2026-09-03 Michael K Burke Director Sell −1,100 −$104.79K
2026-08-26 Michael K Burke Director Sell −1,100 −$102.29K
2026-08-14 Douglas R Casella VICE CHAIRMAN, BD OF DIRECTORS Sell −16,500 −$1.50M
2026-08-12 Damian Andrew Ribar Executive VP and COO A +25,000 deriv. —
2026-06-10 Emily Nagle Green Director G −600 —
2026-06-05 Joseph Doody Director A +1,793 +$149.98K
2026-06-05 Gary Sova Director A +1,793 +$149.98K
2026-06-05 William P Hulligan Director A +1,793 +$149.98K
2026-06-05 Rose M. Kirk Director A +1,793 +$149.98K
2026-06-05 Michael Louis Battles Director A +1,793 +$149.98K
2026-06-05 Emily Nagle Green Director A +1,793 +$149.98K
2026-06-05 Michael K Burke Director A +1,793 +$149.98K
2026-06-05 Douglas R Casella VICE CHAIRMAN, BD OF DIRECTORS A +1,793 +$149.98K
2026-06-04 Douglas R Casella VICE CHAIRMAN, BD OF DIRECTORS G +73,000 —
2026-06-02 John W Casella Director G — —
2026-05-27 Michael K Burke Director Sell −2,305 −$201.83K
2026-05-22 Edmond Coletta PRESIDENT & CEO Sell −12,500 −$1.12M
2026-03-24 Douglas R Casella VICE CHAIRMAN, BD OF DIRECTORS G — —
2026-03-17 Christopher Alan Rains Sr. VP & Chief Revenue Officer A +989 —
2026-03-16 Bradford John Helgeson Executive VP and CFO MIXED +2,351 −$35.53K
2026-03-16 Shelley E. Sayward SENIOR VP & GENERAL COUNSEL MIXED +1,163 −$43.33K
2026-03-16 Edmond Coletta PRESIDENT & CEO MIXED +5,527 −$120.61K
2026-03-16 Sean Steves Sr VP & COO of SW Ops Sell −294 −$26.00K
2026-03-16 John W Casella Director MIXED +2,806 −$239.80K
2026-03-16 Kevin Drohan VP & CHIEF ACCOUNTING OFFICER MIXED +411 −$12.38K
2026-03-02 Sean Steves Sr VP & COO of SW Ops MIXED +2,234 −$111.38K
2026-03-02 John W Casella CHIEF EXECUTIVE OFFICER MIXED +16,573 −$626.19K
2026-03-02 Kevin Drohan VP & CHIEF ACCOUNTING OFFICER MIXED +1,777 −$62.51K
2026-03-02 Edmond Coletta PRESIDENT MIXED +5,998 −$357.18K
2026-03-02 Shelley E. Sayward SENIOR VP & GENERAL COUNSEL MIXED +3,007 −$147.82K
2025-12-09 Edmond Coletta PRESIDENT MIXED −9,000 −$700.49K
2025-12-09 Douglas R Casella VICE CHAIRMAN, BD OF DIRECTORS G −3,900 —
2025-11-10 Bradford John Helgeson Executive VP and CFO Sell −262 −$22.96K
2025-11-07 Emily Nagle Green Director G −1,130 —
2025-11-06 Emily Nagle Green Director Sell −1,116 −$99.75K
2025-08-05 Paul Ligon SR VP of Sustainable Growth Sell −1,000 −$102.84K
2025-06-09 Michael Louis Battles Director A +1,215 +$139.93K
2025-06-09 Michael K Burke Director A +1,215 +$139.93K
2025-06-09 William P Hulligan Director A +1,215 +$139.93K
2025-06-09 Rose M. Kirk Director A +1,215 +$139.93K
2025-06-09 Gary Sova Director A +1,215 +$139.93K
2025-06-09 Joseph Doody Director A +1,649 +$189.92K
2025-06-09 Emily Nagle Green Director A +1,215 +$139.93K
2025-06-04 Paul Ligon SR VP of Sustainable Growth Sell −1,000 −$116.98K
2025-05-09 John W Casella CHIEF EXECUTIVE OFFICER Sell −18,093 −$2.17M
2025-05-07 Edmond Coletta PRESIDENT Sell −5,562 −$662.88K
2025-04-17 Paul Ligon SR VP of Sustainable Growth Sell −2,000 −$237.35K
2025-03-14 Bradford John Helgeson Executive VP and CFO MIXED +1,705 −$20.46K
2025-03-14 Shelley E. Sayward SENIOR VP & GENERAL COUNSEL MIXED +483 −$62.04K
2025-03-14 Edmond Coletta PRESIDENT MIXED −2,726 −$661.36K
CWST — Current Insider Holders
InsiderRole Shares HeldValue
Douglas R Casella VICE CHAIRMAN, BD OF DIRECTORS 261,141 $23.56M
John W Casella CHIEF EXECUTIVE OFFICER 156,100 $14.08M
Edmond Coletta PRESIDENT & CEO 146,618 $13.23M
Shelley E. Sayward SENIOR VP & GENERAL COUNSEL 28,369 $2.56M
Emily Nagle Green Director 22,549 $2.03M
Paul Ligon SR VP of Sustainable Growth 18,374 $1.66M
Michael K Burke Director 13,641 $1.23M
Joseph Doody Director 13,143 $1.19M
Michael Louis Battles Director 10,289 $928.27K
Rose M. Kirk Director 9,835 $887.31K
Sean Steves Sr VP & COO of SW Ops 9,375 $845.81K
Gary Sova Director 8,204 $740.16K
William P Hulligan Director 8,161 $736.29K
Kevin Drohan VP & CHIEF ACCOUNTING OFFICER 8,013 $722.93K
Bradford John Helgeson Executive VP and CFO 7,747 $698.93K
Christopher Alan Rains Sr. VP & Chief Revenue Officer 989 $89.23K
CWST Insider Trading FAQ
Who are the insiders at CWST?
16 officers, directors and 10%+ beneficial owners currently report holdings in CWST via SEC Form 4.
Are CWST insiders buying or selling?
Across the 50 most recent Form 4 filings for CWST, 0 were open-market purchases (code P) and 13 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is CWST insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent CWST filing is dated 2026-09-03.
How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the CWST quote page; the site-wide leaderboard is on the insider transactions hub.

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.