TETRA TECH INC — SCHEDULE 13G/A Filings
3 SCHEDULE 13G/A filings on record
This page lists all SCHEDULE 13G/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 3 SCHEDULE 13G/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 |
|---|---|---|---|---|
| SCHEDULE 13G/A | — | 0000102909-26-002432 | Mar 27, 2026 | — |
| SCHEDULE 13G/A | — | 0000932471-25-000377 | Apr 7, 2025 | — |
| SCHEDULE 13G/A | — | 0002012383-25-001597 | Feb 6, 2025 | — |