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.
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 | FORM 8-K | 0001104659-20-123812 | Nov 12, 2020 | Nov 11, 2020 |
| 8-K | FORM 8-K | 0001104659-20-087826 | Jul 29, 2020 | — |
| 8-K | FORM 8-K | 0001104659-20-071506 | Jun 9, 2020 | — |
| 8-K | FORM 8-K | 0001104659-20-053534 | Apr 29, 2020 | — |
| 8-K | FORM 8-K | 0001104659-20-026247 | Feb 27, 2020 | Feb 26, 2020 |
| 8-K | FORM 8-K | 0001104659-20-008164 | Jan 29, 2020 | — |
| 8-K | FORM 8-K | 0001104659-19-063413 | Nov 13, 2019 | — |
| 8-K | FORM 8-K | 0001410578-19-001492 | Oct 2, 2019 | Sep 30, 2019 |
| 8-K | 8-K | 0001104659-19-042997 | Jul 31, 2019 | — |
| 8-K | 8-K | 0001104659-19-026042 | May 1, 2019 | — |
| 8-K | 8-K | 0001104659-19-011980 | Mar 1, 2019 | Feb 28, 2019 |
| 8-K | 8-K | 0001104659-19-004476 | Jan 30, 2019 | — |
| 8-K | 8-K | 0001104659-18-066676 | Nov 7, 2018 | — |
| 8-K | 8-K | 0001104659-18-048751 | Aug 1, 2018 | Jul 30, 2018 |
| 8-K | 8-K | 0001104659-18-029829 | May 2, 2018 | — |
| 8-K | 8-K | 0001104659-18-016344 | Mar 9, 2018 | Mar 8, 2018 |
| 8-K | 8-K | 0001104659-18-005486 | Jan 31, 2018 | — |
| 8-K | 8-K | 0001104659-18-003331 | Jan 22, 2018 | — |
| 8-K | 8-K | 0000831641-17-000006 | Nov 9, 2017 | Nov 8, 2017 |
| 8-K | 8-K | 0001104659-17-049018 | Aug 3, 2017 | Aug 2, 2017 |
| 8-K | 8-K | 0001104659-17-029554 | May 4, 2017 | May 3, 2017 |
| 8-K | 8-K | 0001104659-17-014001 | Mar 3, 2017 | Mar 2, 2017 |
| 8-K | 8-K | 0001104659-17-005914 | Feb 2, 2017 | Feb 1, 2017 |
| 8-K | 8-K | 0001104659-16-155941 | Nov 10, 2016 | Nov 9, 2016 |
| 8-K | 8-K | 0001104659-16-134687 | Jul 28, 2016 | Jul 27, 2016 |
| 8-K | 8-K | 0001104659-16-114800 | Apr 28, 2016 | Apr 27, 2016 |
| 8-K | 8-K | 0001104659-16-102559 | Mar 4, 2016 | Mar 3, 2016 |
| 8-K | 8-K | 0001104659-16-091796 | Jan 28, 2016 | Jan 27, 2016 |
| 8-K | 8-K | 0001104659-16-090396 | Jan 19, 2016 | — |
| 8-K | 8-K | 0001104659-15-077895 | Nov 12, 2015 | Nov 11, 2015 |
| 8-K | 8-K | 0001104659-15-070618 | Oct 14, 2015 | — |
| 8-K | 8-K | 0001104659-15-054497 | Jul 30, 2015 | Jul 29, 2015 |
| 8-K | 8-K | 0001104659-15-042903 | Jun 2, 2015 | May 29, 2015 |
| 8-K | 8-K | 0001104659-15-037420 | May 13, 2015 | — |
| 8-K | 8-K | 0001104659-15-031803 | Apr 30, 2015 | Apr 29, 2015 |
| 8-K | 8-K | 0001104659-15-026701 | Apr 9, 2015 | Apr 8, 2015 |
| 8-K | 8-K | 0001104659-15-017244 | Mar 6, 2015 | Mar 5, 2015 |
| 8-K | 8-K | 0001104659-15-005127 | Jan 29, 2015 | Jan 28, 2015 |
| 8-K | 8-K | 0001104659-14-079957 | Nov 13, 2014 | Nov 12, 2014 |
| 8-K | 8-K | 0001104659-14-068023 | Sep 25, 2014 | Sep 24, 2014 |
| 8-K | 8-K | 0001104659-14-055108 | Jul 31, 2014 | Jul 28, 2014 |
| 8-K | 8-K | 0001104659-14-048075 | Jun 24, 2014 | Jun 23, 2014 |
| 8-K | 8-K | 0001104659-14-032888 | May 1, 2014 | Apr 30, 2014 |
| 8-K | 8-K | 0001104659-14-014979 | Feb 28, 2014 | Feb 27, 2014 |
| 8-K | 8-K | 0001104659-14-004967 | Jan 30, 2014 | Jan 27, 2014 |
| 8-K | 8-K | 0001104659-13-085182 | Nov 18, 2013 | Nov 14, 2013 |
| 8-K | 8-K | 0001104659-13-084308 | Nov 14, 2013 | Nov 13, 2013 |
| 8-K | 8-K | 0001104659-13-072782 | Sep 30, 2013 | Sep 27, 2013 |
| 8-K | 8-K | 0001104659-13-061183 | Aug 8, 2013 | Aug 7, 2013 |
| 8-K | 8-K | 0001104659-13-058011 | Jul 31, 2013 | Jul 29, 2013 |