Compass Minerals (CMP) director receives new common stock and RSU grants

Rhea-AI Filing Summary

Compass Minerals International reported new equity awards to one of its directors. The director received 186 shares of common stock effective 12/31/2025 at a stated price of $0, increasing their directly held common shares to 186.

The director was also granted 1,348 restricted stock units on 12/18/2025 at an exercise price of $0. These restricted stock units relate to an annual equity grant for serving as a director and are scheduled to vest on 12/18/2026, the first anniversary of the grant date. After this grant, the director directly holds 1,348 restricted stock units tied to Compass Minerals common stock.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Ball Russell David

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	186	$0.00	--
Grant/Award	Restricted Stock Unit	1,348	$0.00	--

Holdings After Transaction: Common Stock — 186 shares (Direct); Restricted Stock Unit — 1,348 shares (Direct)

Footnotes (1)

1. Represents common stock units granted by the Issuer in connection with the Reporting Person's service as a director. Represents annual grant of restricted stock units in connection with the Reporting Person's service as a director, which will vest on the first anniversary of the grant date.

Form 4 Insider Transactions: What Each Field Means →

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

Ball Russell David

(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)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
12/18/2025

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	12/31/2025		A		186(1)	A	$0	186	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	$0	12/18/2025		A		1,348(2)		12/18/2026	12/18/2026	Common Stock	1,348	$0	1,348	D

Explanation of Responses:

1. Represents common stock units granted by the Issuer in connection with the Reporting Person's service as a director.

2. Represents annual grant of restricted stock units in connection with the Reporting Person's service as a director, which will vest on the first anniversary of the grant date.

Remarks:

	/s/ Deanne Larison, by power of attorney	01/05/2026
	** 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 equity awards did Compass Minerals (CMP) grant to the director?

The director received 186 shares of common stock effective 12/31/2025 and an annual grant of 1,348 restricted stock units on 12/18/2025.

Why did the Compass Minerals director receive these stock and RSU grants?

The 186 common shares and 1,348 restricted stock units were granted in connection with the director’s service as a director of Compass Minerals.

When do the director’s Compass Minerals restricted stock units vest?

The 1,348 restricted stock units are scheduled to vest on 12/18/2026, which is the first anniversary of the grant date.

What is the exercise or purchase price for the director’s Compass Minerals awards?

Both the 186 common stock units and the 1,348 restricted stock units are shown with a price or exercise price of $0 in the disclosure.

How many Compass Minerals shares and RSUs does the director hold after these transactions?

Following the reported grants, the director directly holds 186 shares of common stock and 1,348 restricted stock units tied to Compass Minerals common stock.

Is this Compass Minerals insider transaction an individual or joint filing?

The disclosure indicates it is a Form filed by one reporting person, reflecting this single director’s equity awards.