Chemnitz Gregory R. 4

What Happened

• Gregory R. Chemnitz, VP, General Counsel & Secretary of MATERION Corp (MTRN), received restricted stock unit (RSU) awards on 2026-03-06. The filing shows 5 RSUs delivered (acquired) and 4 additional derivative units (reinvested dividend equivalents) granted the same day.
• To satisfy tax withholding on the RSU vesting, 5 shares were surrendered on 2026-03-09 (disposition code F) at $144.19 per share, for a total tax withholding value of $721. The RSUs represent a right to one share each.

Key Details

• Transaction dates: Awards/units received 2026-03-06; shares withheld for taxes 2026-03-09; Form 4 filed 2026-03-10.
• Prices/values: Withheld 5 shares at $144.19 each = $721 total.
• Shares owned after transaction: Not specified in the provided filing excerpt.
• Footnotes: F1 — each RSU equals one share; F2 — the 4 units were dividend-equivalent units that will vest with the related RSUs; F3 — expiration date equals date exercisable (not material here).
• Filing timeliness: Filing appears timely (filed within required business-day window); no late filing indicated.
• Transaction codes: A = award/acquisition (RSUs), F = disposition to cover tax liability (share withholding).

Context

• This was primarily an RSU vesting event with shares withheld to cover taxes, not an open-market sale or a purchase. Withholding to pay taxes is routine and does not necessarily signal a change in insider sentiment.
• The 4 derivative units are dividend-equivalent units tied to RSUs and will vest on the same schedule as those RSUs.