CMP
insider transactionsCOMPASS MINERALS INTERNATIONAL INC — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
No open-market buys or sells this period. The trades below are grants, option exercises and gifts, which carry no market price.
Net buy / sell volume
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Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
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Exercise·M
Chief Commercial Officer
$0
685 sh
Own New
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Other·F
Chief Commercial Officer
$5.6K
195 sh · $28.97
Own -1%
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Exercise·M
Chief Commercial Officer
$0
685 sh
Own +5%
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Exercise·M
Chief Commercial Officer
$0
737 sh
Own +100%
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Other·F
Chief Commercial Officer
$7.5K
247 sh · $30.21
Own -2%
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Exercise·M
Chief Commercial Officer
$0
737 sh
Own +6%
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Grant·A
Director
$0
1.1K sh
Own +592%
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Grant·A
Director
$0
1.8K sh
Own +2%
-
Grant·A
Director
$0
1.3K sh
Own +3%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| May 18, 2026 | Benjamin S. Nichols | Exercise M | 685 | $0 |
| May 18, 2026 | Benjamin S. Nichols | Other F | 195 | $5.6K |
| May 18, 2026 | Benjamin S. Nichols | Exercise M | 685 | $0 |
| May 13, 2026 | Benjamin S. Nichols | Exercise M | 737 | $0 |
| May 13, 2026 | Benjamin S. Nichols | Other F | 247 | $7.5K |
| May 13, 2026 | Benjamin S. Nichols | Exercise M | 737 | $0 |
| Mar 31, 2026 | David Safran | Grant A | 1.1K | $0 |
| Mar 31, 2026 | Joseph E Reece | Grant A | 1.8K | $0 |
| Mar 31, 2026 | Richard P Dealy | Grant A | 1.3K | $0 |
About CMP insider trading
This page tracks insider transactions for COMPASS MINERALS INTERNATIONAL INC (CMP) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.