Matthew J. Foulston serves as Executive at COMPASS MINERALS INTERNATIONAL INC, where they oversee executive responsibilities. Since joining the company, Matthew J. Foulston has executed 32 insider transactions totaling $0, demonstrating a balanced approach to their equity position. Their most recent transaction on Nov 4, 2025 involved receiving (via award) 11,329 shares valued at $0.
Matthew J. Foulston currently holds 11,329 shares of COMPASS MINERALS INTERNATIONAL INC (CMP), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Matthew J. Foulston has been a net neutral trader of CMP stock. They have purchased $0 and sold $0 worth of shares.
Matthew J. Foulston's most recent insider trade was on Nov 4, 2025, when they sold 11,329 shares at $0.00 per share.
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| $N/A |
| Discretionary |
| Aug 7, 2023 | HYZN | $0 | Option Exercise | 43,662 | $N/A | Discretionary |
| Oct 13, 2022 | CVET | $0 | Disposition | 95,079 | $N/A | Discretionary |
| Sep 1, 2022 | CVET | $21.3K | Payment | 1,024 | $20.82 | Discretionary |
| Sep 1, 2022 | CVET | $0 | Option Exercise | 2,601 | $N/A | Discretionary |
| Jun 1, 2022 | CVET | $259.2K | Payment | 12,534 | $20.68 | Discretionary |
| Jun 1, 2022 | CVET | $0 | Option Exercise | 37,469 | $N/A | Discretionary |
| Jun 1, 2022 | CVET | $0 | Option Exercise | 2,600 | $N/A | Discretionary |
| Mar 1, 2022 | CVET | $0 | Option Exercise | 10,247 | $N/A | Discretionary |
| Mar 1, 2022 | CVET | $136.0K | Payment | 7,617 | $17.85 | Discretionary |
| Mar 1, 2022 | CVET | $0 | Award | 20,740 | $N/A | Discretionary |
| Jun 1, 2021 | CVET | $458.0K | Payment | 16,599 | $27.59 | Discretionary |
| Jun 1, 2021 | CVET | $0 | Option Exercise | 37,468 | $N/A | Discretionary |
| May 14, 2021 | CVET | $0 | Award | 28,705 | $N/A | Discretionary |
| May 14, 2021 | CVET | $223.4K | Payment | 8,634 | $25.88 | Discretionary |
| Mar 31, 2019 | THS | $0 | Option Exercise | 1,480 | $N/A | Discretionary |
| Mar 31, 2019 | THS | $28.0K | Payment | 434 | $64.55 | Discretionary |
| Mar 29, 2019 | THS | $0 | Option Exercise | 6,110 | $N/A | Discretionary |
| Mar 29, 2019 | THS | $115.6K | Payment | 1,791 | $64.55 | Discretionary |
| Dec 31, 2018 | THS | $0 | Option Exercise | 1,343 | $N/A | Discretionary |
| Dec 31, 2018 | THS | $19.2K | Payment | 378 | $50.71 | Discretionary |
| Dec 31, 2018 | THS | $0 | Option Exercise | 1,183 | $N/A | Discretionary |
| Dec 31, 2018 | THS | $16.9K | Payment | 333 | $50.71 | Discretionary |
| Mar 31, 2018 | THS | $15.9K | Payment | 416 | $38.27 | Discretionary |
| Mar 31, 2018 | THS | $0 | Option Exercise | 1,480 | $N/A | Discretionary |
| Dec 31, 2017 | THS | $0 | Option Exercise | 1,184 | $N/A | Discretionary |
| Dec 31, 2017 | THS | $18.3K | Payment | 369 | $49.46 | Discretionary |
| Dec 31, 2017 | THS | $0 | Option Exercise | 1,344 | $N/A | Discretionary |
| Dec 31, 2017 | THS | $20.7K | Payment | 418 | $49.46 | Discretionary |