$MAT SEC Filings

Filing Filed On
8-K/A 15 Sep 2023
8-K/A 06 Apr 2020
8-K/A 28 Sep 2018
8-K/A 28 Sep 2018
FORM 8-K/A 21 Nov 2017
8-K/A 28 Aug 2017
FORM 8-K AMENDMENT NO. 1 14 Apr 2015
FORM 8-K AMENDMENT NO. 1 26 Mar 2015
AMENDMENT NUMBER 1 TO FORM 8-K 20 Apr 2004
FORM 8-K/A 09 Jun 1999
8-K/A 30 Jun 1994