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.
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 |