Tetra Tech Inc
TTEKNasdaqCIK 831641IndustrialsFiscal year ends Sep 27
Reports and events: 230 filings
Newest first, by EDGAR acceptance time (Eastern). Each filing’s page lists its documents on sec.gov and, for 10-K and 10-Q reports, the extracted sections.
What the forms are: 10-K, 10-Q, 8-K, Form 4, DEF 14A, Schedule 13D, Schedule 13G, amendments, accession numbers.
| Filed | Form | What it is | Accession number |
|---|---|---|---|
| 2026-09-1009:00 ET | 8-K | 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-26-106564 |
| 2026-07-3116:34 ET | 10-Q | Quarterly reportPeriod 2026-06-28 | 0000831641-26-000017 |
| 2026-07-2916:58 ET | 8-K | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-26-088213 |
| 2026-05-0116:33 ET | 10-Q | Quarterly reportPeriod 2026-03-29 | 0000831641-26-000011 |
| 2026-04-2916:06 ET | 8-K | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-26-051486 |
| 2026-03-2616:05 ET | 8-K | 5.02 Departure or appointment of officers or directors; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-26-035179 |
| 2026-02-2017:00 ET | 8-K | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001104659-26-018205 |
| 2026-01-3016:02 ET | 10-Q | Quarterly reportPeriod 2025-12-28 | 0000831641-26-000005 |
| 2026-01-2817:15 ET | 8-K | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-26-007481 |
| 2026-01-0916:04 ET | DEF 14A | Proxy statementPeriod 2026-02-19 | 0001104659-26-002458 |
| 2026-01-0616:34 ET | 8-K | 5.02 Departure or appointment of officers or directors; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-26-001352 |
| 2025-12-2216:32 ET | 8-K | 5.02 Departure or appointment of officers or directors; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-25-123764 |
| 2025-11-2016:11 ET | 10-K | Annual reportPeriod 2025-09-28 | 0000831641-25-000032 |
| 2025-11-1217:31 ET | 8-K | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-25-110537 |
| 2025-10-1713:09 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0001361570-25-000021 |
| 2025-10-0717:04 ET | 8-K | 5.02 Departure or appointment of officers or directors; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-25-097567 |
| 2025-08-0116:05 ET | 10-Q | Quarterly reportPeriod 2025-06-29 | 0000831641-25-000023 |
| 2025-07-3017:12 ET | 8-K | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-25-072237 |
| 2025-05-0816:36 ET | 10-Q | Quarterly reportPeriod 2025-03-30 | 0000831641-25-000019 |
| 2025-05-0716:45 ET | 8-K | 1.01 Entry into a material agreement; 2.02 Results of operations; 2.03 New direct financial obligation; 3.03 Change to security holders’ rights; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-25-045597 |
| 2025-04-1514:06 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0001361570-25-000009 |
| 2025-02-2816:01 ET | 8-K | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results | 0001104659-25-019107 |
| 2025-01-3116:06 ET | 10-Q | Quarterly reportPeriod 2024-12-29 | 0000831641-25-000005 |
| 2025-01-3017:39 ET | 8-K | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-25-007277 |
| 2025-01-1717:05 ET | 8-K | 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-25-004551 |
| 2025-01-1616:00 ET | DEF 14A | Proxy statementPeriod 2025-02-27 | 0001104659-25-004095 |
| 2024-11-1916:11 ET | 10-K | Annual reportPeriod 2024-09-29 | 0000831641-24-000063 |
| 2024-11-1316:07 ET | 8-K | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-24-117683 |
| 2024-09-0617:05 ET | 8-K | 5.03 Amendment to articles or bylaws; 9.01 Financial statements and exhibits | 0001104659-24-097783 |
| 2024-08-0216:40 ET | 8-K | 5.02 Departure or appointment of officers or directors; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-24-085407 |
| 2024-08-0216:02 ET | 10-Q | Quarterly reportPeriod 2024-06-30 | 0000831641-24-000035 |
| 2024-07-3116:06 ET | 8-K | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-24-084338 |
| 2024-05-2417:05 ET | 8-K | 5.02 Departure or appointment of officers or directors | 0001104659-24-065180 |
| 2024-05-0316:07 ET | 10-Q | Quarterly reportPeriod 2024-03-31 | 0000831641-24-000029 |
| 2024-05-0117:01 ET | 8-K | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-24-055798 |
| 2024-03-0116:00 ET | 8-K | 5.07 Shareholder vote results | 0001104659-24-029950 |
| 2024-02-0216:07 ET | 10-Q | Quarterly reportPeriod 2023-12-31 | 0000831641-24-000008 |
| 2024-01-3116:33 ET | 8-K | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-24-008841 |
| 2024-01-1816:00 ET | DEF 14A | Proxy statementPeriod 2024-02-29 | 0001104659-24-004794 |
| 2023-11-2216:16 ET | 10-K | Annual reportPeriod 2023-10-01 | 0000831641-23-000082 |
| 2023-11-1517:11 ET | 8-K/A | 5.07 Shareholder vote results | 0001104659-23-118774 |
| 2023-11-1517:07 ET | 8-K | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-23-118762 |
| 2023-08-2216:11 ET | 8-K | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 3.02 Unregistered sale of equity; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-23-094243 |
| 2023-08-1508:14 ET | 10-K/A | Annual report, amendedPeriod 2022-10-02 | 0001104659-23-091716 |
| 2023-08-1016:09 ET | 10-Q | Quarterly reportPeriod 2023-07-02 | 0000831641-23-000039 |
| 2023-08-0916:27 ET | 8-K | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-23-089328 |
| 2023-05-1116:10 ET | 10-Q | Quarterly reportPeriod 2023-04-02 | 0000831641-23-000024 |
| 2023-05-1016:31 ET | 8-K | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-23-058476 |
| 2023-05-0816:05 ET | 8-K | 5.02 Departure or appointment of officers or directors | 0001104659-23-057146 |
| 2023-04-1016:01 ET | 8-K/A | 2.01 Completion of an acquisition or disposition; 9.01 Financial statements and exhibits | 0001104659-23-043574 |
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 24, 2026, 14:57 ET. Listed shows no prices and gives no investment advice.