TETRA TECH INC - TTEK
All tracked SEC files for this issuer. Showing up to 200 latest records.
Need parsed ownership details (13D/13G with shares/percent)?
Open ownership details
Form 4 = insider transactions report. Form 144 = notice of proposed sale (not a completed trade confirmation).
Files summary
Total files loaded: 39
Latest filed: Mar 27, 2026
| Form | Count |
|---|---|
| 4 | 29 |
| 8-K | 7 |
| SCHEDULE 13G/A | 1 |
| 144 | 1 |
| SCHEDULE 13D/A | 1 |
Latest files
| Filed | Form | Report period | Accession | SEC |
|---|---|---|---|---|
| Mar 27, 2026 | SCHEDULE 13G/A | — | 0000102909-26-002432 | View |
| Mar 26, 2026 | 8-K | Mar 26, 2026 | 0001104659-26-035179 | View |
| Mar 18, 2026 | 4 | Mar 16, 2026 | 0001592089-26-000004 | View |
| Feb 20, 2026 | 8-K | Feb 19, 2026 | 0001104659-26-018205 | View |
| Feb 20, 2026 | 4 | Feb 19, 2026 | 0001721930-26-000003 | View |
| Feb 20, 2026 | 4 | Feb 19, 2026 | 0001902712-26-000002 | View |
| Feb 12, 2026 | 4 | Feb 10, 2026 | 0001628280-26-007775 | View |
| Feb 06, 2026 | 4 | Feb 04, 2026 | 0001628280-26-006115 | View |
| Feb 06, 2026 | 4 | Feb 06, 2026 | 0001628280-26-006116 | View |
| Feb 04, 2026 | 144 | — | 0001950047-26-000914 | View |
| Jan 28, 2026 | 4 | Jan 26, 2026 | 0001584184-26-000002 | View |
| Jan 28, 2026 | 4 | Jan 26, 2026 | 0001369458-26-000004 | View |
| Jan 28, 2026 | 8-K | Jan 28, 2026 | 0001104659-26-007481 | View |
| Jan 14, 2026 | 4 | Jan 12, 2026 | 0001592089-26-000002 | View |
| Jan 14, 2026 | 4 | Jan 01, 2025 | 0001748476-26-000002 | View |
| Jan 06, 2026 | 8-K | Jan 06, 2026 | 0001104659-26-001352 | View |
| Dec 22, 2025 | 8-K | Dec 22, 2025 | 0001104659-25-123764 | View |
| Dec 03, 2025 | 4 | Nov 19, 2025 | 0000831641-25-000039 | View |
| Dec 02, 2025 | 4 | Nov 19, 2025 | 0001207854-25-000006 | View |
| Dec 02, 2025 | 4 | Nov 19, 2025 | 0001721930-25-000005 | View |
| Dec 02, 2025 | 4 | Nov 19, 2025 | 0001748476-25-000003 | View |
| Dec 02, 2025 | 4 | Nov 19, 2025 | 0001277150-25-000005 | View |
| Dec 02, 2025 | 4 | Nov 18, 2025 | 0001561742-25-000003 | View |
| Dec 02, 2025 | 4 | Nov 19, 2025 | 0001927052-25-000005 | View |
| Dec 02, 2025 | 4 | Nov 19, 2025 | 0001728969-25-000006 | View |
| Dec 02, 2025 | 4 | Nov 19, 2025 | 0001902712-25-000006 | View |
| Dec 02, 2025 | 4 | Nov 19, 2025 | 0001450067-25-000005 | View |
| Dec 02, 2025 | 4 | Nov 19, 2025 | 0001582882-25-000005 | View |
| Nov 20, 2025 | 4 | Nov 18, 2025 | 0001582882-25-000003 | View |
| Nov 20, 2025 | 4 | Nov 18, 2025 | 0001277150-25-000003 | View |
| Nov 20, 2025 | 4 | Nov 18, 2025 | 0001728969-25-000004 | View |
| Nov 20, 2025 | 4 | Nov 18, 2025 | 0001450067-25-000003 | View |
| Nov 20, 2025 | 4 | Nov 18, 2025 | 0001902712-25-000004 | View |
| Nov 20, 2025 | 4 | Nov 18, 2025 | 0001721930-25-000003 | View |
| Nov 20, 2025 | 4 | Nov 18, 2025 | 0001927052-25-000003 | View |
| Nov 20, 2025 | 4 | Nov 18, 2025 | 0001207854-25-000004 | View |
| Nov 12, 2025 | 8-K | Nov 12, 2025 | 0001104659-25-110537 | View |
| Oct 17, 2025 | SCHEDULE 13D/A | — | 0001361570-25-000021 | View |
| Oct 07, 2025 | 8-K | Oct 07, 2025 | 0001104659-25-097567 | View |