TETRA TECH INC — 4/A Filings
41 4/A filings on record
This page lists all 4/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 41 4/A documents with the SEC since 2014. To view all SEC filings by TETRA TECH INC, see the full filings list.
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 |
|---|---|---|---|---|
| 4/A | FORM 4/A | 0000831641-25-000014 | Mar 14, 2025 | Nov 20, 2024 |
| 4/A | FORM 4/A | 0000831641-23-000085 | Nov 22, 2023 | Nov 18, 2023 |
| 4/A | PRIMARY DOCUMENT | 0001525590-15-000002 | Jan 14, 2015 | Nov 21, 2014 |
| 4/A | PRIMARY DOCUMENT | 0001450055-15-000002 | Jan 14, 2015 | Nov 21, 2014 |
| 4/A | PRIMARY DOCUMENT | 0001277150-15-000002 | Jan 14, 2015 | Nov 21, 2014 |
| 4/A | PRIMARY DOCUMENT | 0001450067-14-000014 | Dec 3, 2014 | Nov 22, 2014 |
| 4/A | PRIMARY DOCUMENT | 0001206392-14-000014 | Dec 3, 2014 | Nov 22, 2014 |
| 4/A | PRIMARY DOCUMENT | 0001476561-14-000013 | Dec 3, 2014 | Nov 22, 2014 |
| 4/A | PRIMARY DOCUMENT | 0001534623-14-000012 | Dec 3, 2014 | Nov 22, 2014 |
| 4/A | PRIMARY DOCUMENT | 0001187157-14-000020 | Dec 3, 2014 | Nov 22, 2014 |
| 4/A | PRIMARY DOCUMENT | 0001525590-14-000008 | Dec 3, 2014 | Nov 22, 2014 |
| 4/A | PRIMARY DOCUMENT | 0001450055-14-000010 | Dec 3, 2014 | Nov 22, 2014 |
| 4/A | PRIMARY DOCUMENT | 0001206709-14-000012 | Dec 3, 2014 | Nov 22, 2014 |
| 4/A | PRIMARY DOCUMENT | 0001561742-14-000008 | Dec 3, 2014 | Nov 22, 2014 |
| 4/A | PRIMARY DOCUMENT | 0001277150-14-000012 | Dec 3, 2014 | Nov 22, 2014 |
| 4/A | PRIMARY DOCUMENT | 0001346227-14-000010 | Dec 3, 2014 | Nov 22, 2014 |
| 4/A | PRIMARY DOCUMENT | 0001270606-14-000010 | Dec 3, 2014 | Nov 22, 2014 |
| 4/A | PRIMARY DOCUMENT | 0001207854-14-000010 | Dec 3, 2014 | Nov 22, 2014 |
| 4/A | PRIMARY DOCUMENT | 0001206392-14-000002 | Feb 14, 2014 | Nov 16, 2013 |
| 4/A | PRIMARY DOCUMENT | 0001277150-14-000002 | Feb 14, 2014 | Nov 16, 2013 |
| 4/A | PRIMARY DOCUMENT | 0001187157-14-000002 | Feb 14, 2014 | Nov 16, 2013 |
| 4/A | PRIMARY DOCUMENT | 0001450067-14-000002 | Feb 13, 2014 | Nov 16, 2013 |
| 4/A | PRIMARY DOCUMENT | 0001476561-14-000003 | Feb 13, 2014 | Nov 16, 2013 |
| 4/A | PRIMARY DOCUMENT | 0001534623-14-000002 | Feb 13, 2014 | Nov 16, 2013 |
| 4/A | PRIMARY DOCUMENT | 0001207854-14-000002 | Feb 13, 2014 | Nov 16, 2013 |
| 4/A | PRIMARY DOCUMENT | 0001346227-14-000002 | Feb 12, 2014 | Nov 16, 2013 |
| 4/A | PRIMARY DOCUMENT | 0001450055-14-000002 | Jan 21, 2014 | Oct 29, 2013 |
| 4/A | PRIMARY DOCUMENT | 0001215373-13-000005 | Nov 20, 2013 | Nov 16, 2012 |
| 4/A | PRIMARY DOCUMENT | 0001450067-12-000004 | Dec 18, 2012 | Nov 16, 2012 |
| 4/A | PRIMARY DOCUMENT | 0001450055-12-000006 | Nov 21, 2012 | Nov 16, 2012 |
| 4/A | PRIMARY DOCUMENT | 0001207854-12-000004 | May 25, 2012 | Dec 30, 2011 |
| 4/A | PRIMARY DOCUMENT | 0001277150-11-000009 | Dec 13, 2011 | Dec 8, 2011 |
| 4/A | PRIMARY DOCUMENT | 0001450067-11-000008 | Nov 30, 2011 | Nov 11, 2011 |
| 4/A | PRIMARY DOCUMENT | 0001207854-10-000009 | Nov 22, 2010 | Nov 16, 2010 |
| 4/A | PRIMARY DOCUMENT | 0001206709-10-000006 | Nov 17, 2010 | Nov 12, 2010 |
| 4/A | PRIMARY DOCUMENT | 0001187157-09-000006 | Aug 7, 2009 | Jun 1, 2004 |
| 4/A | PRIMARY DOCUMENT | 0001206709-08-000012 | Oct 31, 2008 | Dec 31, 2007 |
| 4/A | PRIMARY DOCUMENT | 0001206709-07-000006 | May 30, 2007 | May 24, 2007 |
| 4/A | PRIMARY DOCUMENT | 0001346099-06-000008 | Jul 6, 2006 | Jun 1, 2006 |
| 4/A | PRIMARY DOCUMENT | 0001207854-05-000006 | Oct 21, 2005 | Jun 1, 2005 |
| 4/A | 4/A | 0000938431-02-000002 | Sep 24, 2002 | — |