TETRA TECH INC — 10-K/A Filings
8 10-K/A filings on record
This page lists all 10-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 8 10-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 |
|---|---|---|---|---|
| 10-K/A | FORM 10-K/A | 0001104659-23-091716 | Aug 15, 2023 | Oct 2, 2022 |
| 10-K/A | 10-K/A | 0001104659-10-016717 | Mar 26, 2010 | Sep 27, 2009 |
| 10-K/A | AMENDMENT TO ANNUAL REPORT PURSUANT TO SECTION 13 AND 15(D) | 0001104659-07-001815 | Jan 10, 2007 | Oct 2, 2005 |
| 10-K/A | FORM 10K | 0001047469-99-008628 | Mar 5, 1999 | Oct 4, 1998 |
| 10-K/A | 10-K/A | 0001047469-99-002950 | Feb 2, 1999 | Oct 4, 1998 |
| 10-K/A | FORM 10-K/A | 0000912057-97-030036 | Sep 5, 1997 | Sep 29, 1996 |
| 10-K/A | FORM 10-K/A | 0000898430-97-002729 | Jun 27, 1997 | Sep 29, 1996 |
| 10-K/A | FORM 10-K AMENDMENT NO. 1 | 0000898430-97-001171 | Mar 26, 1997 | Sep 29, 1996 |