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Compass Minerals International Inc. (CMP)

Compass Minerals International Inc. (CMP) Insider Trading

Directors, officers and holders of more than 10% of CMP report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.

Recent Form 4 transactions

The 50 most recent of 181 transactions on file: 0 with code P, 0 with code S and 50 with other codes.

DateInsiderCodeShares
Oct 15, 2026Risner BrandonM Exercise4,442
Oct 15, 2026Nichols Benjamin S.M Exercise856
Oct 15, 2026Ward AshleyF Tax Payment740
Oct 15, 2026Risner BrandonF Tax Payment1,465
Oct 15, 2026DOWLING EDWARD CM Exercise45,466
Oct 15, 2026Nichols Benjamin S.M Exercise6,946
Oct 15, 2026Nichols Benjamin S.F Tax Payment1,977
Oct 15, 2026Nichols Benjamin S.M Exercise6,090
Oct 15, 2026DOWLING EDWARD CF Tax Payment20,097
Oct 15, 2026DOWLING EDWARD CM Exercise45,466
Oct 15, 2026Risner BrandonM Exercise5,245
Oct 15, 2026Ward AshleyM Exercise2,598
Oct 15, 2026Ward AshleyM Exercise2,598
Oct 15, 2026Risner BrandonM Exercise803
Oct 9, 2026Safran DavidA Award108
Oct 9, 2026Safran DavidM Exercise1,094
Oct 9, 2026Safran DavidM Exercise4,114
Oct 9, 2026Safran DavidM Exercise3,020
Sep 30, 2026Safran DavidA Award1,135
Sep 30, 2026Reece Joseph EA Award1,702
Sep 30, 2026DEALY RICHARD PA Award1,333
Sep 11, 2026Tills AmyM Exercise7,298
Sep 11, 2026Tills AmyF Tax Payment2,142
Sep 11, 2026Tills AmyM Exercise7,298
Jul 28, 2026Ward AshleyM Exercise8,333
Jul 28, 2026Ward AshleyF Tax Payment2,443
Jul 28, 2026Ward AshleyM Exercise8,333
Jun 30, 2026DEALY RICHARD PA Award944
Jun 30, 2026Reece Joseph EA Award1,205
Jun 30, 2026Safran DavidA Award804
Jun 24, 2026Nichols Benjamin S.F Tax Payment747
Jun 24, 2026Nichols Benjamin S.M Exercise2,542
Jun 24, 2026Nichols Benjamin S.M Exercise2,542
May 18, 2026Nichols Benjamin S.F Tax Payment195
May 18, 2026Nichols Benjamin S.M Exercise685
May 18, 2026Nichols Benjamin S.M Exercise685
May 13, 2026Nichols Benjamin S.M Exercise737
May 13, 2026Nichols Benjamin S.F Tax Payment247
May 13, 2026Nichols Benjamin S.M Exercise737
Mar 31, 2026DEALY RICHARD PA Award1,259
Mar 31, 2026Safran DavidA Award1,071
Mar 31, 2026Reece Joseph EA Award1,816
Mar 5, 2026Miller Melissa MM Exercise11,905
Mar 5, 2026WALKER LORI AM Exercise11,905
Mar 5, 2026Reece Joseph EM Exercise22,322
Mar 5, 2026DEALY RICHARD PM Exercise11,905
Mar 5, 2026DEALY RICHARD PM Exercise11,905
Mar 5, 2026WALKER LORI AM Exercise11,905
Mar 5, 2026Reece Joseph EM Exercise22,322
Mar 5, 2026Joyce Gareth TM Exercise11,905

The full Form 4 history is on the CMP company page (Insider Trades card, View all).

Questions about this data

Which insider transactions are open-market trades?

Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.

How quickly are insider trades reported?

A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.

Who has to file Form 4?

Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.

Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.