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MATERION Corp — DEFA14A Filings

7 DEFA14A filings on record

This page lists all DEFA14A filings submitted to the SEC by MATERION Corp (MTRN), sorted by most recent first. Each row links to the full filing on EdgarLookup. MATERION Corp has filed 7 DEFA14A documents with the SEC since 2017. To view all SEC filings by MATERION Corp, see the full filings list.

Overview All Filings Financials Insiders
All 10-K 10-K/A 10-K405 10-Q 10-Q/A 11-K 144 3 3/A 4 4/A 424B3 424B4 5 8-A12B 8-A12B/A 8-K 8-K/A CORRESP DEF 14A DEFA14A EFFECT PRE 14A S-3 S-3/A S-3MEF S-4 S-4/A S-8 S-8 POS SC 13D SC 13D/A SC 13G SC 13G/A SCHEDULE 13G/A SD UPLOAD
Form Description Accession Number Filed Period
DEFA14A DEFA14A 0001104657-21-000034 Mar 25, 2021
DEFA14A DEFA14A 0001104657-20-000036 Mar 30, 2020
DEFA14A DEFA14A 0001104657-19-000033 Mar 25, 2019
DEFA14A DEFA14A 0001104657-14-000075 Apr 21, 2014
DEFA14A DEFA14A 0001104657-14-000071 Apr 1, 2014
DEFA14A FORM 8-K 0001193125-14-105217 Mar 19, 2014
DEFA14A DEFA14A 0001104657-14-000034 Mar 7, 2014