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Form 4/A CASELLA WASTE SYSTEMS For: Mar 17 Filed by: CASELLA DOUGLAS R

June 4, 2026 4:49 PM
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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OMB Number: 3235-0287
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person *
CASELLA DOUGLAS R
(Last) (First) (Middle)
C/O CASELLA WASTE SYSTEMS, INC.
25 GREENS HILL LANE
(Street)
RUTLAND VT 05702
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
CASELLA WASTE SYSTEMS INC [ CWST ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
X Officer (give title below) Other (specify below)
VICE CHAIRMAN, BD OF DIRECTORS
3. Date of Earliest Transaction (Month/Day/Year)
03/17/2026
4. If Amendment, Date of Original Filed (Month/Day/Year)
03/24/2026		 6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Class B Common Stock 03/18/2026 G (1) 40,000 A $ 0 171,000 I By SLAT (2)
Class B Common Stock 03/17/2026 G (3) 33,000 A $ 0 170,000 I By SLAT 2 (4)
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Explanation of Responses:
1. Represents a gift of shares to the Spousal Lifetime Access Trust for the benefit of Mr. Casella's spouse ("SLAT"). Mr. Casella's spouse is the trustee of the SLAT. The original Form 4 filed on March 24, 2026 (the "Original Form 4") incorrectly reported the gift as a transfer of the shares to the Spousal Lifetime Access Trust for the benefit of Mr. Casella ("SLAT 2"). This amendment reflects the transfer of the shares to the SLAT and the correct amount of securities beneficially owned by the SLAT following the transaction reported in the Original Form 4.
2. Held by the 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.
3. Represents a gift of shares to the SLAT 2. Mr. Casella is the trustee of the SLAT 2. The Original Form 4 incorrectly reported the gift as a transfer of the shares to the SLAT. This amendment reflects the transfer of the shares to the SLAT 2 and the correct amount of securities beneficially owned by the SLAT 2 following the transaction reported in the Original Form 4.
4. Held by the SLAT 2. Mr. Casella is the trustee of SLAT 2.
/s/ Douglas R. Casella 06/04/2026
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

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