Compass Minerals (CMP) director reports no beneficial share ownership on Form 3

Rhea-AI Filing Summary

Compass Minerals International, Inc. (CMP) director filing shows no share ownership. A reporting person who serves as a director of Compass Minerals submitted an initial beneficial ownership report for the event dated 12/18/2025. The filing indicates that no non-derivative or derivative securities of Compass Minerals are beneficially owned, as expressly stated in the remarks section. The report is filed as a single-person Form 3 and includes a power of attorney authorizing the signatory.

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SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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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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. Date of Event Requiring Statement (Month/Day/Year)
12/18/2025

3. Issuer Name and Ticker or Trading Symbol
COMPASS MINERALS INTERNATIONAL INC [ CMP ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

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

5. 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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

Exhibit 24 - Power of Attorney

No securities are beneficially owned.

	/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 5 (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 does this Form 3 filing for Compass Minerals (CMP) disclose?

This Form 3 discloses that a reporting person who is a director of Compass Minerals International, Inc. has filed an initial statement of beneficial ownership and that no securities are beneficially owned according to the remarks section.

What is the relationship of the reporting person to Compass Minerals (CMP)?

The reporting person is identified as a Director of Compass Minerals International, Inc., as indicated in the relationship section of the filing.

As of what date is the beneficial ownership information reported for CMP?

The date of the event requiring the statement is 12/18/2025, which is the reference date for the beneficial ownership information in this Form 3.

Does the director report owning any Compass Minerals (CMP) shares or options?

No. The remarks explicitly state that no securities are beneficially owned, and the tables for non-derivative and derivative securities do not report any holdings.

Is this Form 3 filed by a single reporting person or a group?

The filing indicates that it is a Form filed by One Reporting Person, not a joint or group filing.

What additional document is referenced in this CMP Form 3?

The remarks reference Exhibit 24 - Power of Attorney, which authorizes the signatory, /s/ Deanne Larison, to sign on behalf of the reporting person.