Compass Minerals (CMP) CFO details RSU vesting and tax share withholding in Form 4

Rhea-AI Filing Summary

Compass Minerals International Chief Financial Officer Peter Fjellman reported equity compensation activity involving company stock. On January 28, 2026, 8,321 restricted stock units converted into an equal number of Compass Minerals common shares at an exercise price of $0. To cover tax withholding obligations tied to this vesting, 2,720 common shares were withheld at a price of $25.90 per share, as noted in the footnotes. Following these transactions, Fjellman directly owned 5,601 shares of common stock and 16,641 restricted stock units, which represent rights to receive the same number of shares as they vest through January 28, 2028.

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

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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^*

Fjellman Peter

(Last) (First) (Middle)

C/O COMPASS MINERALS INTERNATIONAL, INC.

9900 WEST 109TH STREET, SUITE 100

(Street)

OVERLAND PARK KS 66210

(City) (State) (Zip)

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 Financial Officer

3. Date of Earliest Transaction (Month/Day/Year)
01/28/2026

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

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

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

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
Common Stock	01/28/2026		M		8,321	A	$0	8,321	D
Common Stock	01/28/2026		F		2,720(1)	D	$25.9	5,601	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
Restricted Stock Unit	(2)	01/28/2026		M			8,321	(3)	01/28/2028	Common Stock	8,321	$0	16,641	D

Explanation of Responses:

1. Represents the number of shares withheld to satisfy tax withholding obligations in connection with the vesting and release of the restricted stock units listed in Table II.

2. Each restricted stock unit represents a contingent right to receive one share of Issuer common stock.

3. Restricted stock units vest in three equal annual installments, beginning on the first anniversary of the grant date and ending on January 28, 2028.

Remarks:

	/s/ Jared Campbell, by power of attorney	01/29/2026
	** 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.

FAQ

What insider transaction did CMP Chief Financial Officer Peter Fjellman report?

Peter Fjellman reported the vesting of 8,321 restricted stock units into Compass Minerals common shares at an exercise price of $0. The filing also shows related share withholding for taxes and updated direct ownership in both common stock and remaining restricted stock units.

How many Compass Minerals (CMP) RSUs vested for the CFO on January 28, 2026?

On January 28, 2026, 8,321 restricted stock units held by the Compass Minerals Chief Financial Officer vested and converted into 8,321 shares of common stock. Each restricted stock unit represents a contingent right to receive one share of Compass Minerals common stock upon vesting.

Why were 2,720 CMP shares withheld in Peter Fjellman’s Form 4 filing?

The 2,720 Compass Minerals shares were withheld to satisfy tax withholding obligations arising from the vesting and release of restricted stock units. This means the shares were not sold on the open market but retained by the issuer to cover the associated tax liability.

How many Compass Minerals (CMP) common shares does the CFO hold after this transaction?

After the reported transactions, the Compass Minerals Chief Financial Officer directly owned 5,601 shares of common stock. This figure reflects the 8,321 vested shares received from restricted stock units, reduced by 2,720 shares withheld to cover tax withholding obligations related to the vesting.

What ongoing equity does the CMP CFO still hold as restricted stock units?

Following the January 28, 2026 vesting event, the Chief Financial Officer beneficially owned 16,641 restricted stock units. Each unit represents a contingent right to receive one share of Compass Minerals common stock, with the units vesting in three equal annual installments through January 28, 2028.

How do the CMP restricted stock units for the CFO vest over time?

The restricted stock units vest in three equal annual installments, starting on the first anniversary of the grant date and ending on January 28, 2028. As each installment vests, the CFO becomes entitled to receive an equivalent number of Compass Minerals common shares.