[Form 4] COMPASS MINERALS INTERNATIONAL INC Insider Trading Activity

Rhea-AI Filing Summary

Compass Minerals (CMP) director Richard P. Dealy received 1,530 common stock units on 09/30/2025 as compensation for his service as a director. The units were granted at no cash price ($0) and increased his total beneficial ownership to 30,156 shares following the award. The Form 4 was filed as a single reporting person filing and signed by an attorney-in-fact on 10/01/2025. The filing explicitly states the units represent common stock units granted by the issuer in connection with the reporting person’s director service.

Positive

• Director alignment: The grant of 1,530 common stock units ties the director's compensation to company equity, aligning his interests with shareholders.
• Transparency: The Form 4 discloses the acquisition and updated beneficial ownership (30,156 shares), meeting Section 16 reporting requirements.

Negative

• None.

Insights

Financial Analyst

TL;DR: Routine director equity grant of 1,530 shares increases insider ownership to 30,156 shares; not a material market-moving event.

This Form 4 reports a standard equity grant to a non-executive director as compensation for board service. The grant was issued at $0, which indicates a restricted stock/unit award rather than a purchase. The incremental ownership (1,530 units) and resulting total of 30,156 shares are disclosed for transparency under Section 16. There is no information in the filing about vesting schedules, sale, or hedging activity that would affect near-term liquidity or signaling.

Corporate Governance Expert

TL;DR: Typical director compensation disclosure; aligns board member with shareholders but contains no governance concerns.

The filing cleanly documents a director grant tied to service, reflecting common governance practice to align directors with shareholder interests. The Form 4 shows direct beneficial ownership and is filed by one reporting person. The signature by an attorney-in-fact is properly noted. The filing does not disclose any governance red flags such as unusual derivative use, accelerated vesting, or related-party transactions.

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).

1. Name and Address of Reporting Person^*

DEALY RICHARD P

(Last) (First) (Middle)

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)
09/30/2025

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	09/30/2025		A		1,530(1)	A	$0	30,156	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

Explanation of Responses:

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

Remarks:

Exhibit 24 - Power of Attorney

	/s/ Deanne Larison, by power of attorney	10/01/2025
	** 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 Richard P. Dealy report on the Form 4 for CMP?

The Form 4 reports an acquisition of 1,530 common stock units on 09/30/2025, granted as director compensation, increasing his ownership to 30,156 shares.

What was the price paid for the shares reported on CMP Form 4?

The reported price for the granted common stock units is $0, indicating they were granted rather than purchased.

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

The filing lists Richard P. Dealy as a Director of Compass Minerals International Inc.

When was the transaction executed and when was the Form 4 signed?

The transaction date is 09/30/2025, and the Form 4 bears a signature via power of attorney dated 10/01/2025.

Does the Form 4 disclose any derivative or sale transactions for CMP?

No. The filing contains only a non-derivative acquisition of common stock units and shows no derivative or disposition activity.