EdgarLookup

TETRA TECH INC — 8-K/A Filings

9 8-K/A filings on record

This page lists all 8-K/A filings submitted to the SEC by TETRA TECH INC (TTEK), sorted by most recent first. Each row links to the full filing on EdgarLookup. TETRA TECH INC has filed 9 8-K/A documents with the SEC since 2014. To view all SEC filings by TETRA TECH INC, see the full filings list.

Overview All Filings Financials Insiders
All 10-C 10-K 10-K/A 10-Q 10-Q/A 144 3 3/A 4 4/A 424B1 424B2 424B3 424B4 5 8-K 8-K/A ARS CORRESP DEF 14A DEF 14C DEFA14A DEFR14A NT 10-K NT 10-Q POS AM PRE 14A PRER14C S-3 S-3/A S-3MEF S-8 SC 13D SC 13D/A SC 13G SC 13G/A SCHEDULE 13D/A SCHEDULE 13G SCHEDULE 13G/A UPLOAD
Form Description Accession Number Filed Period
8-K/A FORM 8-K/A 0001104659-23-118774 Nov 15, 2023 Feb 28, 2023
8-K/A FORM 8-K/A 0001104659-23-043574 Apr 10, 2023 Jan 19, 2023
8-K/A 8-K/A 0001104659-12-025160 Apr 13, 2012 Mar 1, 2011
8-K/A 8-K/A 0001104659-03-010934 May 22, 2003 Mar 7, 2003
8-K/A FORM 8-K/A 0000831641-98-000007 Dec 1, 1998 Sep 22, 1998
8-K/A 8-K/A 0001047469-98-010071 Mar 16, 1998 Dec 31, 1997
8-K/A 8-K/A 0000912057-97-031207 Sep 19, 1997 Jun 11, 1997
8-K/A 8-K/A 0000912057-97-028981 Aug 25, 1997 Jun 11, 1997
8-K/A FORM 8-K 0000898430-97-002655 Jun 24, 1997 Jun 11, 1997