Sec Form 4 Filing - Schuller George John JR @ COMPASS MINERALS INTERNATIONAL INC - 2021-01-13

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 Schuller George John JR 2. Issuer Name and Ticker or Trading Symbol COMPASS MINERALS INTERNATIONAL INC [ CMP] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Operations Officer (Last) (First) (Middle) C/O COMPASS MINERALS INTERNATIONAL, INC., 9900 W 109TH ST STE 100 3. Date of Earliest Transaction (MM/DD/YY) 01/13/2021 (Street) OVERLAND PARK, KS66210 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 Common Stock 9,226 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 Performance Stock Unit(EBITDA) ( 1 ) 01/13/2021 A 11,465 ( 2 ) 01/13/2024 Common Stock 11,465 $ 0 11,465 D Restricted Stock Unit ( 3 ) 01/13/2021 A 7,644 ( 4 ) 01/13/2024 Common Stock 7,644 $ 0 7,644 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Schuller George John JR C/O COMPASS MINERALS INTERNATIONAL, INC. 9900 W 109TH ST STE 100 OVERLAND PARK, KS66210 Chief Operations Officer Signatures /s/ Robert B. Porter, Attorney-in-Fact 01/15/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Each performance stock unit represents a contingent right to receive between 0% and 300% of one share of Issuer common stock. The reported number of securities represents the target number of shares that may be earned. The actual number of shares that may be earned will be calculated based on the Issuer's EBITDA growth over a three-year performance period. ( 2 )The actual number of shares that may be earned will be determined by the Compensation Committee based on the Issuer's actual performance. Earned and vested performance stock units will generally be settled on the later of January 13, 2024 and the Compensation Committee's determination of performance. ( 3 )Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. Vesting of the restricted stock units is contingent on satisfaction of a performance hurdle tied to the Issuer's 2021 financial performance. ( 4 )Restricted stock units vest in three equal annual installments, beginning on the first anniversary of the grant date and ending on January 13, 2024.

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).

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