Director at Compass Minerals (NYSE: CMP) gains shares through awards

Rhea-AI Filing Summary

Compass Minerals International director Joseph E. Reece reported equity compensation-related transactions on March 5, 2026. He exercised 22,322 deferred stock units into common stock at $0.00 per share and received a new grant of 9,434 deferred stock units for board service.

After these transactions, he directly held 92,649 shares of common stock and 9,434 deferred stock units21,000 common shares held indirectly by a trust. All reported movements reflect awards, conversions, or holdings rather than open-market buying or selling.

03/09/2026 - 06:14 PM

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

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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^*

Reece Joseph E

(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(1)	03/05/2026		M		22,322	A	$0	92,649	D
Common Stock								21,000	I	By Trust

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
Deferred Stock Units	$0	03/05/2026		M			22,322	03/05/2026	03/05/2026	Common Stock	22,322	$0	0	D
Deferred Stock Units	$0	03/05/2026		A		9,434(2)		03/04/2027	03/04/2027	Common Stock	9,434	$0	9,434	D

Explanation of Responses:

1. Represents deferred 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 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 director Joseph E. Reece report in this CMP Form 4?

Joseph E. Reece reported equity compensation transactions. He exercised 22,322 deferred stock units into common stock and received a grant of 9,434 new deferred stock units, all in connection with his service as a director of Compass Minerals International.

How many Compass Minerals (CMP) shares does Joseph E. Reece hold after the Form 4?

After the reported transactions, Reece directly held 92,649 common shares. He also had 9,434 deferred stock units outstanding and 21,000 common shares reported as held indirectly by a trust, according to the ownership figures shown in the filing.

Were the CMP Form 4 transactions open-market buys or sells?

The reported Compass Minerals transactions were not open-market trades. They consisted of an exercise of 22,322 deferred stock units into common stock and a grant of 9,434 deferred stock units as director compensation, all priced at $0.00 per unit or share.

What is the nature of the 9,434 deferred stock units granted to the CMP director?

The 9,434 deferred stock units are an annual equity award. A footnote explains they are restricted stock units granted for director service, vesting before the next annual meeting (if held at least 50 weeks after grant) or on the first anniversary of the grant date.

How many CMP shares are held indirectly by trust for Joseph E. Reece?

The filing shows 21,000 Compass Minerals common shares held indirectly by a trust. This indirect position is separate from his direct holdings and is disclosed with a nature of ownership described as “By Trust” in the ownership table.