Director Russell David Ball granted 5,032 CMP (NYSE: CMP) restricted stock units

Rhea-AI Filing Summary

Ball Russell David reported acquisition or exercise transactions in this Form 4 filing.

COMPASS MINERALS INTERNATIONAL INC director Russell David Ball received an annual equity grant in the form of restricted stock units. On March 5, 2026, he was granted 5,032 Restricted Stock Units at a price of $0.00 per unit, reflecting a non-cash award for his board service.

The footnote explains that these RSUs will vest on the earlier of the day immediately before the company’s next annual meeting (if held at least 50 weeks from the grant date) or the first anniversary of the grant date. After this filing, Ball also held 186 shares of Common Stock directly.

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^*

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)
03/05/2026

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								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	03/05/2026		A		5,032(1)		03/04/2027	03/04/2027	Common Stock	5,032	$0	5,032	D

Explanation of Responses:

1. Represents annual grant of restricted stock units in connection with the Reporting Person's service as a director, which will vest on the earlier of (a) the day immediately preceding the Issuer's next annual meeting (as long as the meeting is held at least 50 weeks from the grant date) and (b) the first anniversary of the grant date.

Remarks:

	/s/ Deanne Larison, by power of attorney	03/09/2026
	** 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 did CMP director Russell David Ball report in this Form 4 filing?

Russell David Ball reported receiving an annual grant of 5,032 restricted stock units of Compass Minerals International. The award compensates his service as a director and vests based on the timing of the company’s next annual meeting or the grant’s first anniversary.

How many restricted stock units did CMP grant to director Russell David Ball?

Compass Minerals International granted 5,032 restricted stock units to director Russell David Ball. These units were awarded at a price of $0.00 per unit, indicating a non-cash equity incentive tied to his continued board service and subject to specific vesting conditions.

What are the vesting terms of Russell David Ball’s CMP restricted stock units?

The 5,032 restricted stock units granted to Russell David Ball vest on the earlier of the day immediately before CMP’s next annual meeting, if held at least 50 weeks after grant, or the first anniversary of the grant date, aligning compensation with his director service period.

Does Russell David Ball hold CMP common stock in addition to restricted stock units?

Yes. Following the reported transactions, Russell David Ball directly held 186 shares of CMP common stock. This common stock position is separate from his 5,032 restricted stock units, which represent a contingent equity award subject to future vesting conditions.

Was the CMP restricted stock unit grant to Russell David Ball a purchase or a sale?

The transaction was an equity award, not an open-market purchase or sale. The Form 4 identifies it as a grant of 5,032 restricted stock units at $0.00 per unit, representing compensation for Russell David Ball’s ongoing service as a director.