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TETRA TECH INC — 8-K Filings

193 8-K filings on record

This page lists all 8-K 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 193 8-K 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 8-K 0001104659-13-050001 Jun 19, 2013 Jun 18, 2013
8-K 8-K 0001104659-13-039468 May 9, 2013 May 7, 2013
8-K 8-K 0001104659-13-036117 May 2, 2013 May 1, 2013
8-K 8-K 0001104659-13-027753 Apr 9, 2013 Apr 8, 2013
8-K 8-K 0001104659-13-014510 Feb 27, 2013 Feb 26, 2013
8-K 8-K 0001104659-13-006105 Jan 31, 2013 Jan 30, 2013
8-K 8-K 0001104659-12-075518 Nov 8, 2012 Nov 7, 2012
8-K 8-K 0001104659-12-053397 Aug 2, 2012 Aug 1, 2012
8-K 8-K 0001104659-12-032157 May 3, 2012 May 2, 2012
8-K 8-K 0001104659-12-014508 Feb 29, 2012 Feb 28, 2012
8-K 8-K 0001104659-12-009566 Feb 14, 2012 Feb 13, 2012
8-K 8-K 0001104659-12-005944 Feb 2, 2012 Feb 1, 2012
8-K 8-K 0001104659-11-062856 Nov 10, 2011 Nov 9, 2011
8-K 8-K 0001104659-11-043264 Aug 4, 2011 Aug 3, 2011
8-K 8-K 0001104659-11-039728 Jul 20, 2011 Jul 15, 2011
8-K 8-K 0001104659-11-025889 May 5, 2011 May 4, 2011
8-K 8-K 0001104659-11-017492 Mar 30, 2011 Mar 28, 2011
8-K 8-K 0001104659-11-013697 Mar 11, 2011 Mar 10, 2011
8-K 8-K 0001104659-11-012087 Mar 3, 2011 Mar 1, 2011
8-K 8-K 0001104659-11-004603 Feb 3, 2011 Feb 2, 2011
8-K 8-K 0001104659-10-057688 Nov 12, 2010 Nov 10, 2010
8-K 8-K 0001104659-10-040255 Jul 29, 2010 Jul 28, 2010
8-K 8-K 0001104659-10-022637 Apr 29, 2010 Apr 28, 2010
8-K 8-K 0001104659-10-011183 Mar 2, 2010 Feb 25, 2010
8-K 8-K 0001104659-10-003368 Jan 28, 2010 Jan 27, 2010
8-K 8-K 0001104659-09-064153 Nov 12, 2009 Nov 11, 2009
8-K 8-K 0001104659-09-045681 Jul 30, 2009 Jul 29, 2009
8-K 8-K 0001104659-09-027188 Apr 30, 2009 Apr 29, 2009
8-K 8-K 0001104659-09-027152 Apr 30, 2009 Apr 24, 2009
8-K 8-K 0001104659-09-013096 Feb 27, 2009 Feb 26, 2009
8-K 8-K 0001104659-09-004703 Jan 29, 2009 Jan 28, 2009
8-K 8-K 0001104659-08-070277 Nov 13, 2008 Nov 12, 2008
8-K 8-K 0001104659-08-061956 Oct 6, 2008 Oct 3, 2008
8-K 8-K 0001104659-08-048686 Jul 31, 2008 Jul 30, 2008
8-K 8-K 0001104659-08-028587 May 1, 2008 Apr 30, 2008
8-K 8-K 0001104659-08-020666 Mar 28, 2008 Mar 25, 2008
8-K 8-K 0001104659-08-005885 Jan 31, 2008 Jan 30, 2008
8-K 8-K 0001104659-07-083285 Nov 15, 2007 Nov 14, 2007
8-K 8-K 0001104659-07-058011 Aug 2, 2007 Aug 1, 2007
8-K 8-K 0001104659-07-034982 May 3, 2007 May 2, 2007
8-K 8-K 0001104659-07-028652 Apr 17, 2007 Apr 16, 2007
8-K 8-K 0001104659-07-006209 Feb 1, 2007 Jan 31, 2007
8-K CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES 0001104659-06-081978 Dec 18, 2006 Dec 15, 2006
8-K CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES 0001104659-06-075598 Nov 16, 2006 Nov 13, 2006
8-K CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES 0001104659-06-055655 Aug 17, 2006 Aug 16, 2006
8-K CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES 0001104659-06-054229 Aug 14, 2006 Aug 11, 2006
8-K CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES 0001104659-06-050840 Aug 3, 2006 Aug 2, 2006
8-K CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES 0001104659-06-030885 May 4, 2006 May 3, 2006
8-K CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES 0001104659-06-015461 Mar 10, 2006 Mar 6, 2006
8-K CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES 0001104659-06-003926 Jan 26, 2006 Jan 25, 2006