SEC Form 4
Casella Waste Systems Inc (CWST) insider trading
In the 12 months to Oct 24, 2026, 4 CWST insiders reported open-market sales of $3.8M across 7 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $3.8M
- 7 filings · 4 insiders
- Open-market purchases
- $0
- 0 filings
Who traded CWST, and when
- Sale
CWST daily close from Oct 24, 2025 to Oct 23, 2026, between $74.97 and $107.34, last $97.61. 7 sale and 0 purchase filings by 4 insiders, marked at their filing dates. Edmond Coletta, PRESIDENT → PRESIDENT & CEO: sold $1.8M across 2 filings, first filed Dec 9, 2025, last May 22, 2026. Douglas R. Casella, VICE CHAIRMAN, BD OF DIRECTORS: sold $1.5M across 1 filing, first filed Aug 14, 2026, last Aug 14, 2026. Michael K. Burke, Director: sold $408.9K across 3 filings, first filed May 27, 2026, last Sep 3, 2026. Emily Nagle Green, Director: sold $99.7K across 1 filing, first filed Nov 6, 2025, last Nov 6, 2025.
Largest mark · tap a row for others
Douglas R. Casella · VICE CHAIRMAN, BD OF DIRECTORS
Sale $1,502,391
16,500 shares at $91.05 avg
Filed Aug 14, 2026 · traded Aug 13
Close on filing date $90.72
Edmond Coletta · PRESIDENT → PRESIDENT & CEO
PRESIDENT → PRESIDENT & CEO
$1.8M soldDouglas R. Casella · VICE CHAIRMAN, BD OF DIRECTORS
VICE CHAIRMAN, BD OF DIRECTORS
$1.5M soldMichael K. Burke · Director
Director
$408.9K soldEmily Nagle Green · Director
Director
$99.7K soldHas Casella Waste Systems Inc's CEO sold stock?
Yes. Edmond Coletta (CEO) sold 12,500 shares ($1.1M) in May 2026. John W. Casella (CEO) made no open-market sales filed as CEO in the last 12 months.
Open-market trades
7 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Edmond Coletta | PRESIDENT → PRESIDENT & CEO | $1.8M | — | 2 | — | |
| Douglas R. Casella | VICE CHAIRMAN, BD OF DIRECTORS | $1.5M | — | 1 | — | |
| Michael K. Burke | Director | $408.9K | — | 3 | — | |
| Emily Nagle Green | Director | $99.7K | — | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Michael K. Burke Director | Sale | 1,100 | $95.26 | $104.8K | 13,641 | |
traded | Michael K. Burke Director | Sale | 1,100 | $92.99 | $102.3K | 14,741 | |
traded | Douglas R. Casella VICE CHAIRMAN, BD OF DIRECTORS | Sale | 16,500 | $91.05 | $1.5M | 90,141 | |
traded | Michael K. Burke Director | Sale | 2,305 | $87.56 | $201.8K | 14,048 | |
traded | Edmond Coletta PRESIDENT & CEO | Sale | 12,500 | $89.56 | $1.1M | 145,025 | |
traded | Edmond Coletta PRESIDENT | Sale | 7,000 | $100.07 | $700.5K | 141,093 | |
traded | Emily Nagle Green Director | Sale | 1,116 | $89.38 | $99.7K | 5,647 |
GET /stocks/filings/vX/form-4?tickers=CWST&filing_date.gte=2025-10-24&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"CWST"
],
"issuer_cik": "0000911177",
"owner_cik": "0001224062",
"accession_number": "0001224062-26-000008",
"form_type": "4",
"filing_date": "2026-09-03",
"period_of_report": "2026-09-03",
"issuer_name": "CASELLA WASTE SYSTEMS INC",
"issuer_trading_symbol": "CWST",
"owner_name": "BURKE MICHAEL K",
"is_director": true,
"is_officer": false,
"is_ten_percent_owner": false,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Class A Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-09-03",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 1100,
"transaction_price_per_share": 95.26,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 13641,
"transaction_value": 104786,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "Represents the weighted average sales price for shares sold in multiple transactions, ranging from $95.13 to $95.41. Upon request of the staff of the Securities and Exchange Commission, the issuer or a security holder of the issuer, the reporting person will provide full information regarding the number of shares sold at each separate price."
}
]
},
{
"tickers": [
"CWST"
],
"issuer_cik": "0000911177",
"owner_cik": "0001224062",
"accession_number": "0001224062-26-000006",
"form_type": "4",
"filing_date": "2026-08-26",
"period_of_report": "2026-08-26",
"issuer_name": "CASELLA WASTE SYSTEMS INC",
"issuer_trading_symbol": "CWST",
"owner_name": "BURKE MICHAEL K",
"is_director": true,
"is_officer": false,
"is_ten_percent_owner": false,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Class A Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-08-26",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 1100,
"transaction_price_per_share": 92.99,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 14741,
"transaction_value": 102289,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "Represents the weighted average sales price for shares sold in multiple transactions, ranging from $92.85 to $93.06. Upon request of the staff of the Securities and Exchange Commission, the issuer or a security holder of the issuer, the reporting person will provide full information regarding the number of shares sold at each separate price."
}
]
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 46 records
- Tax withholding (sold to cover)17 records
- Grants and awards19 records
- Gifts10 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
Build this yourself
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for CWST every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Role
- The title on each filing. Someone whose title changed shows more than one.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.