TETRA TECH INC — All Filings
1,002 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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10-C
10-K
10-K/A
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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 | FORM 4 | 0000831641-20-000087 | Aug 26, 2020 | — |
| 4 | FORM 4 | 0000831641-20-000083 | Aug 25, 2020 | Aug 21, 2020 |
| 4 | FORM 4 | 0000831641-20-000080 | Aug 21, 2020 | — |
| 4 | FORM 4 | 0000831641-20-000081 | Aug 21, 2020 | Aug 19, 2020 |
| 4 | FORM 4 | 0000831641-20-000076 | Aug 14, 2020 | Aug 13, 2020 |
| 4 | FORM 4 | 0000831641-20-000077 | Aug 14, 2020 | Aug 12, 2020 |
| 4 | FORM 4 | 0000831641-20-000075 | Aug 14, 2020 | Aug 12, 2020 |
| 4 | FORM 4 | 0000831641-20-000071 | Aug 7, 2020 | Aug 6, 2020 |
| 4 | FORM 4 | 0000831641-20-000070 | Aug 5, 2020 | Aug 3, 2020 |
| 4 | FORM 4 | 0000831641-20-000068 | Aug 5, 2020 | Aug 4, 2020 |
| 4 | FORM 4 | 0000831641-20-000069 | Aug 5, 2020 | — |
| 10-Q | 10-Q | 0000831641-20-000064 | Jul 31, 2020 | Jun 28, 2020 |
| 8-K | FORM 8-K | 0001104659-20-087826 | Jul 29, 2020 | — |
| 4 | FORM 4 | 0000831641-20-000056 | Jun 12, 2020 | — |
| 8-K | FORM 8-K | 0001104659-20-071506 | Jun 9, 2020 | — |
| 4 | FORM 4 | 0000831641-20-000054 | Jun 3, 2020 | Jun 1, 2020 |
| 4 | FORM 4 | 0000831641-20-000052 | May 29, 2020 | May 27, 2020 |
| 4 | FORM 4 | 0000831641-20-000050 | May 8, 2020 | May 7, 2020 |
| 10-Q | 10-Q | 0000831641-20-000048 | May 1, 2020 | Mar 29, 2020 |
| 8-K | FORM 8-K | 0001104659-20-053534 | Apr 29, 2020 | — |
| 4 | FORM 4 | 0000831641-20-000044 | Mar 4, 2020 | Mar 3, 2020 |
| 8-K | FORM 8-K | 0001104659-20-026247 | Feb 27, 2020 | Feb 26, 2020 |
| 4 | FORM 4 | 0000831641-20-000041 | Feb 26, 2020 | Feb 24, 2020 |
| 4 | FORM 4 | 0000831641-20-000042 | Feb 26, 2020 | — |
| 4 | FORM 4 | 0000831641-20-000038 | Feb 14, 2020 | Feb 12, 2020 |
| 4 | FORM 4 | 0000831641-20-000036 | Feb 12, 2020 | Feb 11, 2020 |
| 4 | FORM 4 | 0000831641-20-000035 | Feb 12, 2020 | Feb 10, 2020 |
| SC 13G/A | SCHEDULE 13G/A | 0001104659-20-017418 | Feb 12, 2020 | — |
| 4 | FORM 4 | 0000831641-20-000033 | Feb 12, 2020 | Feb 10, 2020 |
| 4 | FORM 4 | 0000831641-20-000034 | Feb 12, 2020 | Feb 10, 2020 |
| 4 | FORM 4 | 0000831641-20-000027 | Feb 7, 2020 | Feb 6, 2020 |
| 4 | FORM 4 | 0000831641-20-000028 | Feb 7, 2020 | Feb 6, 2020 |
| 4 | FORM 4 | 0000831641-20-000024 | Feb 5, 2020 | — |
| 4 | FORM 4 | 0000831641-20-000021 | Feb 5, 2020 | — |
| 4 | FORM 4 | 0000831641-20-000022 | Feb 5, 2020 | Feb 4, 2020 |
| 4 | FORM 4 | 0000831641-20-000023 | Feb 5, 2020 | Feb 4, 2020 |
| 4 | FORM 4 | 0000831641-20-000020 | Feb 5, 2020 | Feb 3, 2020 |
| SC 13G/A | — | 0000834237-20-002807 | Feb 4, 2020 | — |
| 10-Q | 10-Q | 0000831641-20-000012 | Jan 31, 2020 | Dec 29, 2019 |
| 4 | FORM 4 | 0000831641-20-000013 | Jan 31, 2020 | Jan 29, 2020 |
| 4 | FORM 4 | 0000831641-20-000014 | Jan 31, 2020 | Jan 29, 2020 |
| 8-K | FORM 8-K | 0001104659-20-008164 | Jan 29, 2020 | — |
| 4 | FORM 4 | 0000831641-20-000005 | Jan 24, 2020 | Jan 22, 2020 |
| DEFA14A | DEFA14A | 0001104659-20-004319 | Jan 15, 2020 | — |
| DEF 14A | DEF 14A | 0001047469-20-000253 | Jan 15, 2020 | Feb 26, 2020 |
| 4 | FORM 4 | 0000831641-19-000205 | Dec 12, 2019 | — |
| 4 | FORM 4 | 0000831641-19-000206 | Dec 12, 2019 | Dec 10, 2019 |
| 4 | FORM 4 | 0000831641-19-000207 | Dec 12, 2019 | — |
| 4 | FORM 4 | 0000831641-19-000208 | Dec 12, 2019 | Dec 10, 2019 |
| 4 | FORM 4 | 0000831641-19-000200 | Dec 5, 2019 | Dec 4, 2019 |