Transaction #33706 · Form 4 · 0001227654-26-000077

COMPASS MINERALS INTERNATIONAL INC · Exercise / conversion · Common Stock

COMPASS MINERALS INTERNATIONAL INC · Transacted October 9, 2026 · Filed October 15, 2026

Original SEC filing ↗

What does this filing report?

An SEC Form 4 filing for COMPASS MINERALS INTERNATIONAL INC records an exercise / conversion involving Common Stock on October 9, 2026. The reported quantity was 4,114. The filing date is October 15, 2026. This is one transaction record; amounts are not allocated among any joint reporting owners.

The acquisition category describes how securities were received. It does not by itself establish a cash purchase of common stock. Read the transaction code definitionsand the original filing before interpreting the amounts.

Transaction details

Company CIK
0001227654
Security type
Non-derivative
Acquisition type
Exercise / conversion · Code M
Quantity acquired
4,114
Reported price
0
Reference value
0
Currency
Currency not specified
Ownership
Direct
Holdings after transaction
7,305
Ownership description
Not reported
SEC acceptance time
Oct 15, 2026, 4:38 PM EDT
10b5-1 indication
Not indicated

Reference value is reported quantity × reported price. It is not a confirmed cash payment or an estimate of a derivative's economic value. A missing currency is not assumed to be USD.

Reporting owners

These are the reporting owners named in the filing. Quantities and amounts are not allocated among co-reporters. Roles reflect this filing, not a current profile.

Company listings

CMP · NYSE · linked security

The linked listing is identified separately from other current company listings.

Filing footnotes & remarks

F1
On October 9, 2026, in connection with the Reporting Person's resignation, 4,114 restricted stock units vested and were settled in shares of Issuer's common stock.
F2
Represents common stock units granted by the Issuer in connection with the Reporting Person's service as a director.
F3
Represents restricted stock units granted to the Reporting Person on 3/5/2026. Upon the Reporting Person's resignation from the Board of Directors, a prorated portion of this award became vested and the remainder of this award was forfeited.
F4
The remaining 2012 restricted stock units granted with this award have been forfeited.
F5
Represents restricted stock units granted to the Reporting Person on 12/18/2025. Upon the Reporting Person's resignation from the Board of Directors, a prorated portion of this award became vested and the remainder of this award was forfeited.
F6
The remaining 254 restricted stock units granted with this award have been forfeited

Footnotes are reproduced as plain text from the current source filing. For the full context, read the original SEC filing.

This record was updated Eastern Time. This is the stored record update time, not the transaction date. Report a correction.