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.
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 | — |