Compass Minerals (CMP) CCO vests RSUs and covers taxes with shares

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

Compass Minerals International Chief Commercial Officer Benjamin S. Nichols reported routine equity compensation activity involving restricted stock units and related tax withholding. He exercised derivative rights to receive 2,542 shares of common stock, while 747 shares were withheld at a price of $28.66 per share to satisfy tax obligations tied to vesting.

Following these transactions, Nichols directly holds 16,735 shares of common stock and indirectly holds 249 shares through a 401(k) plan based on a statement dated as of October 31, 2025. He also has 2,542 restricted stock units outstanding, each representing a contingent right to one share of common stock, which vest in two equal annual installments beginning on June 24, 2026 and ending on June 24, 2027.

Insider Trade Summary

2,542 shares exercised/converted

Mixed 4 txns

Insider Nichols Benjamin S.

Role Chief Commercial Officer

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Unit	2,542	$0.00	--
Exercise	Common Stock	2,542	$0.00	--
Tax Withholding	Common Stock	747	$28.66	$21K
holding	Common Stock	--	--	--

Holdings After Transaction: Restricted Stock Unit — 2,542 shares (Direct, null); Common Stock — 16,735 shares (Direct, null); Common Stock — 249 shares (Indirect, 401(k) Plan)

Footnotes (1)

Represents the number of shares withheld to satisfy tax withholding obligations in connection with the vesting and release of the restricted stock units listed in Table II. The reported number is based on a 401(k) plan statement dated as of October 31, 2025. Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. The restricted stock units vest in two equal annual installments beginning on June 24, 2026 and ending on June 24, 2027

Key Figures

RSUs exercised/underlying shares: 2,542 shares Shares withheld for taxes: 747 shares at $28.66 Direct holdings after transactions: 16,735 shares +3 more

6 metrics

RSUs exercised/underlying shares 2,542 shares Common stock received through derivative exercise on June 24, 2026

Shares withheld for taxes 747 shares at $28.66 Tax withholding disposition related to RSU vesting

Direct holdings after transactions 16,735 shares Common stock directly owned after June 24, 2026 transactions

Indirect 401(k) holdings 249 shares Common stock held through 401(k) plan as of October 31, 2025

Outstanding RSUs 2,542 units Each unit equals one share; vesting from June 24, 2026 to June 24, 2027

RSU expiration date June 24, 2027 Expiration date of the reported restricted stock units

Key Terms

Restricted Stock Unit, 401(k) Plan, tax withholding obligations, Exercise or conversion of derivative security

4 terms

Restricted Stock Unit financial

"The restricted stock units vest in two equal annual installments beginning on June 24, 2026 and ending on June 24, 2027"

A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.

401(k) Plan financial

"The reported number is based on a 401(k) plan statement dated as of October 31, 2025."

A 401(k) plan is a workplace retirement account that lets employees set aside part of their pay into a tax-advantaged savings pot, often with employers adding matching contributions — like a workplace piggy bank for future income. It matters to investors because the amount people save and how employers fund these plans influence consumer spending, corporate payroll costs and the flow of money into financial markets, which can affect stock prices and company valuations.

tax withholding obligations financial

"Represents the number of shares withheld to satisfy tax withholding obligations in connection with the vesting and release of the restricted stock units listed in Table II."

Exercise or conversion of derivative security financial

"transaction_code_description": "Exercise or conversion of derivative security""

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 06/26/2026 - 04:39 PM Accepted by SEC EDGAR 06/26/2026 - 04:38 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

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^*

Nichols Benjamin S.

(Last)

(First)

(Middle)

C/O COMPASS MINERALS INTERNATIONAL, INC.

9900 WEST 109TH STREET, SUITE 100

(Street)

OVERLAND PARK

KANSAS

66210

(City)

(State)

(Zip)

UNITED STATES

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/24/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	06/24/2026		M		2,542	A	$0	16,735	D
Common Stock	06/24/2026		F		747⁽¹⁾	D	$28.66	15,988	D
Common Stock								249⁽²⁾	I	401(k) Plan

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Stock Unit	⁽³⁾	06/24/2026		M			2,542	⁽⁴⁾	06/24/2027	Common Stock	2,542	$0	2,542	D

Explanation of Responses:

1. Represents the number of shares withheld to satisfy tax withholding obligations in connection with the vesting and release of the restricted stock units listed in Table II.

2. The reported number is based on a 401(k) plan statement dated as of October 31, 2025.

3. Each restricted stock unit represents a contingent right to receive one share of Issuer common stock.

4. The restricted stock units vest in two equal annual installments beginning on June 24, 2026 and ending on June 24, 2027

Remarks:

	/s/ Jared Campbell, by power of attorney	06/26/2026
	** 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.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transactions did CMP executive Benjamin S. Nichols report?

Benjamin S. Nichols reported equity compensation activity, including exercising rights to 2,542 shares of common stock and a related tax-withholding disposition of 747 shares at $28.66 per share. These events are tied to restricted stock unit vesting, not open-market buying or selling.

How many Compass Minerals (CMP) shares does Benjamin S. Nichols now hold?

After the reported transactions, Benjamin S. Nichols directly holds 16,735 shares of Compass Minerals common stock and indirectly holds 249 shares through a 401(k) plan. These figures come from the ownership balances shown immediately following the June 24, 2026 Form 4 transactions.

What was the purpose of the 747 CMP shares disposed of in Nichols’s Form 4?

The 747 shares were withheld to cover tax withholding obligations related to the vesting and release of restricted stock units. This tax-withholding disposition, coded “F,” is a mechanistic transaction with the issuer rather than an open-market sale by the executive.

What restricted stock unit position does CMP’s Benjamin S. Nichols report?

Nichols reports 2,542 restricted stock units, each representing a contingent right to receive one share of Compass Minerals common stock. These units vest in two equal annual installments, beginning June 24, 2026 and ending June 24, 2027, providing a scheduled equity compensation stream.

How are Nichols’s indirect Compass Minerals (CMP) holdings structured?

Nichols’s indirect Compass Minerals holdings consist of 249 shares held through a 401(k) plan. The reported number is based on a 401(k) plan statement dated as of October 31, 2025, and reflects retirement-plan ownership rather than directly held trading shares.