CMP · Compass Minerals International Inc · Insider Trading

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

Restricted stock units vest in three equal annual installments, beginning on the first anniversary of the grant date and ending on October 15, 2027

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

Restricted stock units vest in three equal annual installments, beginning on the first anniversary of the grant date and ending on October 15, 2027

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.

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.

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

Restricted stock units vest in three equal annual installments, beginning on the first anniversary of the grant date and ending on October 15, 2026.

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

Restricted stock unit vests in three equal installments, beginning on the first anniversary of the grant date and ending on October 15, 2026.

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

Restricted stock units vest in three equal annual installments, beginning on the first anniversary of the grant date and ending on October 15, 2027.

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.

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.

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

Restricted stock units vest in three equal annual installments, beginning on the first anniversary of the grant date and ending on October 15, 2027

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.

The remaining 2012 restricted stock units granted with this award have been forfeited.

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

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.

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.

The remaining 254 restricted stock units granted with this award have been forfeited

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

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

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

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

The first tranche of these restricted stock units vest on the first anniversary of the grant date. The remaining tranche will continue to vest, equally, on September 11, 2027

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.

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

Restricted stock units vest on July 28, 2026.

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.

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

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

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

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.

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

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

The restricted stock units vest in three equal installments, beginning on the first anniversary of the grant date and ending on May 18, 2026.

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.

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.

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

The restricted stock units vest in three equal installments, beginning on the first anniversary of the grant date and ending on May 13, 2028.

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

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

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

Represents annual grant of restricted stock units vesting in one year by Issuer in connection with the Reporting Person's service as a director.

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.

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

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.

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.