Sec Form 4 Filing - Johnson Edwin D @ CASELLA WASTE SYSTEMS INC - 2019-02-20

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

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, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Johnson Edwin D 2. Issuer Name and Ticker or Trading Symbol CASELLA WASTE SYSTEMS INC [ CWST] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) President & COO (Last) (First) (Middle) 25 GREENS HILL LANE, C/O CASELLA WASTE SYSTEMS, INC. 3. Date of Earliest Transaction (MM/DD/YY) 02/20/2019 (Street) RUTLAND, VT05701 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 02/20/2019 A 75,620 ( 1 ) A $ 0 420,937 D Class A Common Stock 02/21/2019 S( 2 ) 33,135 D $ 34.5998 ( 3 ) 387,802 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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 7. Title and Amount of Underlying Securities (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 of Derivative Security: 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 Employee Stock Option (Right to Buy) $ 12.48 02/20/2019 A 17,976 02/20/2019 11/16/2026 Class A Common Stock 17,976 $ 0 17,976 ( 4 ) D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Johnson Edwin D 25 GREENS HILL LANE C/O CASELLA WASTE SYSTEMS, INC. RUTLAND, VT05701 President & COO Signatures /s/ Edwin D. Johnson 02/22/2019 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents shares of Class A Common Stock acquired by the reporting person upon the vesting of performance-based stock units ("PSU's") granted to the reporting person on November 17, 2016, as a result of the level of achievement by Casella Waste Systems, Inc. (the "Company") of certain performance objectives during the third year ("Measurement Period") of the three-year performance period running from January 1, 2016 to December 31, 2018, multiplied by a Relative TSR multiplier for the period running from January 1, 2016 to December 31, 2018. ( 2 )Represents the automatic sale of stock for tax withholding purposes pursuant to a Rule 10b5-1 trading plan adapted by the person on March 15, 2016, in connection with the vesting of PSU's on February 20, 2019. ( 3 )Represents the weighted average sales price for shares sold in multiple transactions, at prices ranging from $34.40 to $34.75, inclusive. 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. ( 4 )On November 17, 2016, the reporting person was granted a performance-based stock option, which vested as to 35,952 shares of Class A Common Stock, as a result of the level of achievement by the Company of certain performance objectives during the Measurement Period of the three-year performance period running from January 1, 2016 to December 31, 2018, multiplied by a Relative TSR multiplier for the period running from January 1, 2016 to December 31, 2018.

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