Mary L. Frontczak - 06 Nov 2021 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: 06 Nov 2021
Net transactions value: -$40,020
Form type: 4
Filing time: 08 Nov 2021, 15:09:23 UTC
Previous filing: 19 Oct 2021
Next filing: 02 Dec 2021
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	+1,878	+180%	$0.000000	2,923	06 Nov 2021	Direct
transaction	CMP	Common Stock	Tax liability	$40,020	-552	-19%	$72.50	2,371	06 Nov 2021	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	-1,878	-50%	$0.000000	1,878	06 Nov 2021	Common Stock	1,878		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	On November 6, 2019, the reporting person was granted 5,634 restricted stock units, vesting in three equal installments beginning on the first anniversary of the grant date.