Shelley E. Sayward - 12 Mar 2026 Form 4 Insider Report for CASELLA WASTE SYSTEMS INC (CWST)

Reporting relationship: SENIOR VP & GENERAL COUNSEL
Issuer ticker: CWST
Reported as of: 12 Mar 2026
Net transaction value: -$43,331
SEC form: 4
Accepted by SEC: 16 Mar 2026, 16:53:11 UTC
Prior SEC filing: 02 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Shelley E. Sayward

Key filing fact

Shelley E. Sayward filed Form 4 for CASELLA WASTE SYSTEMS INC (CWST) on 16 Mar 2026.

Key facts

This page summarizes Shelley E. Sayward's Form 4 filing for CASELLA WASTE SYSTEMS INC (CWST).
3 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 16 Mar 2026, 16:53.

Change

Previous filing in this sequence was filed on 02 Mar 2026.
Current net transaction value: -$43,331.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001823513 Primary reporting owner

Sayward Shelley E.

Relationship: SENIOR VP & GENERAL COUNSEL
Address: 25 GREENS HILL LANE, RUTLAND
Signature: /s/ Shelley E. Sayward
Signature date: 16 Mar 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

CWST transaction

Class A Common Stock

Award

Transaction value
Shares: +1,654
Change %: +6.1%
Price: $0.000000^*
Shares after: 28,860
Date: 12 Mar 2026
Ownership: Direct
Footnotes: F1

CWST transaction

Class A Common Stock

Sale

Transaction value: $11,573
Shares: -129
Change %: -0.45%
Price: $89.71
Shares after: 28,731
Date: 12 Mar 2026
Ownership: Direct
Footnotes: F2

CWST transaction

Class A Common Stock

Sale

Transaction value: $31,758
Shares: -362
Change %: -1.3%
Price: $87.73
Shares after: 28,369
Date: 16 Mar 2026
Ownership: Direct
Footnotes: F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 2 footnotes

Footnote F1

Represents the award of Restricted Stock Units (RSUs) under the Casella Waste Systems, Inc. Amended and Restated 2016 Incentive Plan. Each RSU represents a contingent right to receive one share of Casella's Class A Common Stock. RSUs vest in three equal annual installments beginning on March 12, 2027.

Footnote F2

Represents the sale of shares of Class A Common Stock pursuant to a "sell-to-cover" transaction in order to satisfy tax withholding obligations in connection with the vesting of RSUs previously granted to the reporting person. This sale was effected pursuant to an automatic sell-to-cover instruction adopted by the reporting person on August 2, 2023 and does not represent a discretionary sale by the reporting person.