John W. Casella - 12 Mar 2026 Form 4 Insider Report for CASELLA WASTE SYSTEMS INC (CWST)

Role
Director
Signature
/s/ John W. Casella
Issuer symbol
CWST
Transactions as of
12 Mar 2026
Net transactions value
-$239,799
Form type
4
Filing time
16 Mar 2026, 16:54:53 UTC
Previous filing
02 Mar 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
CASELLA JOHN W Director C/O CASELLA WASTE SYSTEMS, 25 GREENS HILL LANE, RUTLAND /s/ John W. Casella 16 Mar 2026 0001055352

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CWST Class A Common Stock Award +5,513 +20% $0.000000* 33,502 12 Mar 2026 Direct F1
transaction CWST Class A Common Stock Sale $86,728 -963 -2.9% $90.06 32,539 12 Mar 2026 Direct F2
transaction CWST Class A Common Stock Sale $153,071 -1,744 -5.4% $87.77 30,795 16 Mar 2026 Direct F2, F3
holding CWST Class B Common Stock 137,000 12 Mar 2026 by SLAT 2 F4
holding CWST Class B Common Stock 134,000 12 Mar 2026 By SLAT F5
holding CWST Class B Common Stock 166,000 12 Mar 2026 Direct
holding CWST Class A Common Stock 694 12 Mar 2026 By Spouse F6
holding CWST Class B Common Stock 57,100 12 Mar 2026 By Spouse F6
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
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.
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 22, 2023 and does not represent a discretionary sale by the reporting person.
F3 Represents the weighted average sales price for shares sold in multiple transactions, ranging from $87.77 to $87.85. 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.
F4 Held by the Spousal Lifetime Access Trust for the benefit of Mr. Casella ("SLAT 2"). Mr. Casella is the trustee of the SLAT 2.
F5 Held by the Spousal Lifetime Access Trust for the benefit of Mr. Casella's spouse ("SLAT"). Mr. Casella's spouse is the trustee of the SLAT. Mr. Casella disclaims beneficial ownership of the securities indicated to the extent to which he does not have an actual pecuniary interest in such securities.
F6 Held by Mr. Casella's spouse. Mr. Casella disclaims beneficial ownership of the securities indicated to the extent to which he does not have an actual pecuniary interest in such securities.