Casella director sells 1,100 shares at $92.99

Casella Waste Systems Inc (CWST) director Michael K. Burke reported selling 1,100 shares of Class A Common Stock on 2026-08-26 in an open market or private transaction.

Rhea-AI Filing Summary

Casella Waste Systems Inc (CWST) director Michael K. Burke reported selling 1,100 shares of Class A Common Stock on 2026-08-26 in an open market or private transaction. The sale was executed at a weighted average price of $92.99 per share, with individual trade prices ranging from $92.85 to $93.06. After this transaction, Burke directly holds 14,741 shares of Casella Waste Systems Inc Class A Common Stock.

Insider Trade Summary

Net Seller: 1,100 shares

Net Sell 1 txn

Insider BURKE MICHAEL K

Role Director

Sold 1,100 shs ($102K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock F1	1,100	$92.99	$102K

Holdings After Transaction: Class A Common Stock — 14,741 shares (Direct)

Footnotes (1)

1. F1. 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.

Key Figures

Shares sold: 1,100 shares of Class A Common Stock Weighted average sales price: $92.99 per share Sale price range: $92.85 to $93.06 per share +2 more

5 metrics

Shares sold 1,100 shares of Class A Common Stock Sale by director Michael K. Burke on 2026-08-26

Weighted average sales price $92.99 per share Price for multiple sale transactions on 2026-08-26

Sale price range $92.85 to $93.06 per share Range of prices for individual trades included in the reported sale

Shares owned after transaction 14,741 shares Director Michael K. Burke’s direct holdings after the 2026-08-26 sale

Net shares sold 1,100 shares Net sell direction from transaction summary

Key Terms

weighted average sales price, open market or private transaction, Class A Common Stock

3 terms

weighted average sales price financial

"Represents the weighted average sales price for shares sold in multiple"

open market or private transaction financial

"Sale in open market or private transaction"

Class A Common Stock financial

"security_title": "Class A Common Stock""

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did CWST director Michael K. Burke report?

Michael K. Burke, a director of Casella Waste Systems Inc (CWST), reported selling 1,100 shares of Class A Common Stock on 2026-08-26. The transaction was coded as a sale in an open market or private transaction, as reflected in the Form 4 filing.

At what price did Michael K. Burke sell CWST shares?

Burke’s reported sale of CWST Class A Common Stock was executed at a weighted average price of $92.99 per share. The filing states that individual trades occurred at prices ranging from $92.85 to $93.06.

How many CWST shares does Michael K. Burke hold after this Form 4 transaction?

Following the reported sale, Michael K. Burke directly holds 14,741 shares of Casella Waste Systems Inc (CWST) Class A Common Stock. This post-transaction holding amount is disclosed in the Form 4 data.

Was the reported CWST insider sale under a Rule 10b5-1 trading plan?

The Form 4 indicates the Rule 10b5-1 checkbox is not affirmed for this filing (aff_10b5_one is false). The footnote for the transaction discusses weighted average pricing but does not describe the sale as being under a Rule 10b5-1 trading plan.

What does the footnote to Michael K. Burke’s CWST sale explain?

The footnote explains that the $92.99 figure is a weighted average sales price for multiple trades between $92.85 and $93.06. It also states that Burke will provide full detail on the number of shares sold at each price upon request by the SEC, the issuer, or a security holder.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/26/2026 - 04:46 PM EDT Accepted by SEC EDGAR 08/26/2026 - 04:45 PM EDT Learn about SEC filing dates

SEC Form 4

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a 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). See Instruction 10.

1. Name and Address of Reporting Person^*

BURKE MICHAEL K

(Last) (First) (Middle)

C/O CASELLA WASTE SYSTEMS, INC.

25 GREENS HILL LANE

(Street)

RUTLAND VERMONT 05701

(City) (State) (Zip)

UNITED STATES

(Country)

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
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/26/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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 A Common Stock	08/26/2026		S		1,100	D	$92.99(1)	14,741	D

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 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.

Remarks:

	/s/ Shelley E. Sayward, Attorney in Fact for Michael K. Burke	08/26/2026
	** 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.
* Form 4: SEC 1474 (03-26)