Mary L. Frontczak - 13 Jan 2022 Form 4 Insider Report for COMPASS MINERALS INTERNATIONAL INC (CMP)

Role: Chief Legal & Admin. Officer
Signature: /s/ Robert B. Porter, Attorney-in-Fact
Issuer symbol: CMP
Transactions as of: 13 Jan 2022
Transactions value $: -$31,797
Form type: 4
Filing time: 14 Jan 2022, 15:14:54 UTC
Previous filing: 02 Dec 2021
Next filing: 16 Jun 2022
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	CMP	Common Stock	Options Exercise	$0	+1.71K	+72.16%	$0.00	4.08K	13 Jan 2022	Direct
transaction	CMP	Common Stock	Tax liability	-$31.8K	-593	-14.53%	$53.62	3.49K	13 Jan 2022	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	CMP	Restricted Stock Unit	Options Exercise	$0	-1.71K	-33.34%	$0.00	3.42K	13 Jan 2022	Common Stock	1.71K		Direct	F2, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents the number of shares withheld to satisfy tax withholding obligations on the vesting and release of restricted stock units.
F2	Each restricted stock unit represents a contingent right to receive one share of Issuer common stock.
F3	Restricted stock units vest in three equal annual installments, beginning on the first anniversary of the grant date and ending on January 13, 2024.