Miller Melissa M 4

What Happened

• Melissa M. Miller, a director of Compass Minerals International, converted/exercised 11,905 derivative units into 11,905 common shares on 2026-03-05 at $0.00 (no cash paid) and the filing also shows a contemporaneous disposition of 11,905 derivative units (listed as "Derivative") at $0.00. On the same date she was granted 5,032 restricted stock units (RSUs) at $0.00.
• There was no cash consideration reported for these transactions (all prices listed as $0.00). The grant of 5,032 RSUs is a compensation award, not an open-market purchase or sale.

Key Details

• Transaction dates: March 5, 2026 (reported on Form 4 filed March 9, 2026).
• Reported prices/values: $0.00 for all items (exercise/conversion and RSU grant); total cash value reported = $0.
• Share counts: 11,905 converted/exercised (and a matching 11,905 derivative disposition) and a 5,032-share RSU award.
• Shares owned after transaction: not specified in the supplied summary (not disclosed here).
• Footnote: The 5,032 RSUs are an annual director grant that will vest on the earlier of the day before the issuer’s next annual meeting (if ≥50 weeks away) or the first anniversary of the grant date.
• Timeliness: Form 4 was filed March 9, 2026 for a March 5, 2026 transaction — the filing appears timely (within the SEC’s two-business-day requirement).

Context

• Code M indicates an exercise or conversion of a derivative security; Code A indicates a grant/award. Conversions and RSU grants are typically non-cash compensation events rather than market purchases or disposals that signal buying/selling intent.
• The contemporaneous "derivative" disposition at $0.00 commonly accompanies a conversion/cancellation of the derivative instrument; the filing does not show a market sale for cash.
• For retail investors: awards and conversions increase an insider’s economic exposure to the company but do not necessarily indicate a change in sentiment like an open-market purchase or sale would.