Compass Minerals (NYSE: CMP) director granted stock units and 1,348 RSUs

Rhea-AI Filing Summary

Compass Minerals International director Merle Denise M reported equity awards tied to her board service. On December 18, 2025, she received 1,348 restricted stock units at $0 per unit. These RSUs are described as the annual grant for her role as a director and are scheduled to vest on the first anniversary of the grant date. On December 31, 2025, she also acquired 220 common stock units at $0 per share, reflecting additional stock-based compensation for director service. Following these transactions, she directly holds 1,348 RSUs and 220 common shares-related units.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Merle Denise M

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	220	$0.00	--
Grant/Award	Restricted Stock Unit	1,348	$0.00	--

Holdings After Transaction: Common Stock — 220 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^*

Merle Denise M

(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		220(1)	A	$0	220	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	01/26/2026
	** 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 activity did CMP director Merle Denise M report?

She reported receiving 1,348 restricted stock units on December 18, 2025 and 220 common stock units on December 31, 2025 as compensation for serving as a director of Compass Minerals International (CMP).

Were the CMP director equity awards purchases or grants?

Both transactions were grants, coded as A (acquired), with a $0 price per unit or share, indicating stock-based compensation rather than open-market buying.

When do the CMP restricted stock units granted to the director vest?

The 1,348 restricted stock units granted on December 18, 2025 will vest on the first anniversary of the grant date, subject to the terms of the award.

How many CMP securities does the director hold after these transactions?

After the reported transactions, the director holds 220 common stock units and 1,348 restricted stock units, all reported as direct ownership.

Why did the CMP director receive these stock and restricted stock unit awards?

Footnotes state that the 220 common stock units and the 1,348 restricted stock units were granted in connection with the reporting person’s service as a director of Compass Minerals International.

Do any related entities hold the CMP shares reported in this Form 4?

No. The filing identifies the ownership of both the common stock units and restricted stock units as direct (D) by the reporting person, with no separate entity disclosed in the ownership descriptions.