Russell D. Ball - 05 Mar 2026 Form 4 Insider Report for COMPASS MINERALS INTERNATIONAL INC (CMP)

Reporting relationship: Director
Issuer ticker: CMP
Reported as of: 05 Mar 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 09 Mar 2026, 18:10:14 UTC
Prior SEC filing: 05 Jan 2026
Next SEC filing: 09 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Deanne Larison, by power of attorney

Key filing fact

Russell D. Ball filed Form 4 for COMPASS MINERALS INTERNATIONAL INC (CMP) on 09 Mar 2026.

Key facts

This page summarizes Russell D. Ball's Form 4 filing for COMPASS MINERALS INTERNATIONAL INC (CMP).
1 reported transaction and 1 derivative row are listed below.
Accepted by SEC: 09 Mar 2026, 18:10.

Change

Previous filing in this sequence was filed on 05 Jan 2026.
Current net transaction value: $0.

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 0001299936 Primary reporting owner

Ball Russell David

Relationship: 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: 09 Mar 2026

Reported non-derivative transactions

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

CMP holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 186
Date: 05 Mar 2026
Ownership: Direct

Reported derivative securities

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

CMP transaction Derivative

Restricted Stock Unit

Award

Transaction value
Shares: +5,032
Change %
Price: $0.000000^*
Shares after: 5,032
Date: 05 Mar 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 5,032
Exercise price: $0.000000
Footnotes: F1

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

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.