Edward C. Dowling - 18 Jan 2026 Form 4 Insider Report for COMPASS MINERALS INTERNATIONAL INC (CMP)

Reporting relationship: President and CEO, Director
Issuer ticker: CMP
Reported as of: 18 Jan 2026
Net transaction value: -$160,189
SEC form: 4
Accepted by SEC: 20 Jan 2026, 17:26:30 UTC
Prior SEC filing: 26 Nov 2025
Source filing: View source filing
Reporting owner signature: /s/ Deanne Larison, by power of attorney

Key filing fact

Edward C. Dowling filed Form 4 for COMPASS MINERALS INTERNATIONAL INC (CMP) on 20 Jan 2026.

Key facts

This page summarizes Edward C. Dowling's Form 4 filing for COMPASS MINERALS INTERNATIONAL INC (CMP).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 20 Jan 2026, 17:26.

Change

Previous filing in this sequence was filed on 26 Nov 2025.
Current net transaction value: -$160,189.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001210454 Primary reporting owner

DOWLING EDWARD C

Relationship: President and CEO, Director
Address: C/O COMPASS MINERALS INTERNATIONAL, INC., 9900 WEST 109TH STREET, SUITE 100, OVERLAND PARK
Signature: /s/ Deanne Larison, by power of attorney
Signature date: 20 Jan 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

CMP transaction

Common Stock

Options Exercise

Transaction value: $0
Shares: +22,350
Change %: +44%
Price: $0.000000
Shares after: 73,139
Date: 18 Jan 2026
Ownership: Direct

CMP transaction

Common Stock

Tax liability

Transaction value: $160,189
Shares: -6,878
Change %: -9.4%
Price: $23.29
Shares after: 66,261
Date: 18 Jan 2026
Ownership: Direct
Footnotes: F1

CMP holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 4,882
Date: 18 Jan 2026
Ownership: Direct
Footnotes: F2

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

CMP transaction Derivative

Restricted Stock Unit

Options Exercise

Transaction value: $0
Shares: -22,350
Change %: -50%
Price: $0.000000
Shares after: 22,350
Date: 18 Jan 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 22,350
Exercise price
Footnotes: F3, F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

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.

Footnote F2

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

Footnote F3

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

Footnote F4

Restricted stock units vest in three equal installments, beginning on January 18, 2025 and ending on January 18, 2027.