Mistras Group, Inc.
MGNYSECIK 1436126IndustrialsFiscal year ends Dec 31
Reports and events: 252 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 |
|---|---|---|---|
| 2026-10-0716:05 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0001104659-26-114355 |
| 2026-09-2116:05 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0001104659-26-109294 |
| 2026-09-1817:22 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0001193125-26-395732 |
| 2026-09-1816:05 ET | 8-K | 1.01 Entry into a material agreement; 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001140361-26-037107 |
| 2026-09-1421:28 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0002082289-26-000012 |
| 2026-08-1017:16 ET | 10-Q | Quarterly reportPeriod 2026-06-30 | 0001628280-26-055351 |
| 2026-08-1017:10 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-26-055344 |
| 2026-06-1219:15 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0001104659-26-073638 |
| 2026-06-0416:12 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0000897101-26-000203 |
| 2026-05-2016:30 ET | 8-K | 5.07 Shareholder vote results | 0001628280-26-036918 |
| 2026-05-0714:52 ET | 10-Q | Quarterly reportPeriod 2026-03-31 | 0001628280-26-031968 |
| 2026-05-0517:17 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-26-030733 |
| 2026-04-2320:00 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0001193125-26-174325 |
| 2026-04-0717:24 ET | DEF 14A | Proxy statementPeriod 2026-05-19 | 0001140361-26-013689 |
| 2026-03-3116:12 ET | SCHEDULE 13D | Ownership report, active investor | 0000897101-26-000112 |
| 2026-03-1114:36 ET | 10-K | Annual reportPeriod 2025-12-31 | 0001628280-26-016765 |
| 2026-03-0416:35 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-26-014662 |
| 2025-11-0614:28 ET | 10-Q | Quarterly reportPeriod 2025-09-30 | 0001628280-25-050063 |
| 2025-11-0417:02 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001436126-25-000093 |
| 2025-09-1016:01 ET | 8-K | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001436126-25-000074 |
| 2025-08-1115:13 ET | 10-Q | Quarterly reportPeriod 2025-06-30 | 0001436126-25-000068 |
| 2025-08-0616:51 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001436126-25-000063 |
| 2025-05-2310:58 ET | 8-K | 5.07 Shareholder vote results | 0001436126-25-000039 |
| 2025-05-0915:53 ET | 10-Q | Quarterly reportPeriod 2025-03-31 | 0001436126-25-000034 |
| 2025-05-0818:00 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001436126-25-000031 |
| 2025-04-0916:15 ET | DEF 14A | Proxy statementPeriod 2025-05-19 | 0001140361-25-013050 |
| 2025-03-1116:52 ET | 10-K | Annual reportPeriod 2024-12-31 | 0001436126-25-000026 |
| 2025-03-1020:08 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0000950170-25-036701 |
| 2025-03-0516:25 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001436126-25-000021 |
| 2025-02-1309:11 ET | 8-K | 5.02 Departure or appointment of officers or directors | 0001436126-25-000016 |
| 2025-02-0716:07 ET | 8-K | 7.01 Regulation FD disclosure | 0001436126-25-000013 |
| 2025-01-0216:07 ET | 8-K | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001436126-25-000010 |
| 2025-01-0216:04 ET | 8-K/A | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001436126-25-000008 |
| 2024-12-1616:14 ET | 8-K | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001436126-24-000074 |
| 2024-12-0517:22 ET | 8-K | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001436126-24-000071 |
| 2024-11-0414:02 ET | 10-Q | Quarterly reportPeriod 2024-09-30 | 0001436126-24-000065 |
| 2024-10-3016:26 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001436126-24-000062 |
| 2024-10-3016:01 ET | 8-K | 1.02 Termination of a material agreement; 9.01 Financial statements and exhibits | 0001436126-24-000060 |
| 2024-09-1816:05 ET | 8-K | 8.01 Other events; 9.01 Financial statements and exhibits | 0001436126-24-000055 |
| 2024-08-0214:49 ET | 10-Q | Quarterly reportPeriod 2024-06-30 | 0001436126-24-000052 |
| 2024-07-3116:04 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001436126-24-000046 |
| 2024-07-0920:07 ET | SC 13D | Ownership report, active investor | 0001193125-24-176872 |
| 2024-05-2014:46 ET | 8-K | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results | 0001436126-24-000037 |
| 2024-05-0314:44 ET | 10-Q | Quarterly reportPeriod 2024-03-31 | 0001436126-24-000035 |
| 2024-05-0116:04 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001436126-24-000029 |
| 2024-04-0416:01 ET | DEF 14A | Proxy statementPeriod 2024-05-14 | 0001140361-24-017926 |
| 2024-03-1116:40 ET | 10-K | Annual reportPeriod 2023-12-31 | 0001436126-24-000025 |
| 2024-03-0616:02 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001436126-24-000018 |
| 2024-03-0116:15 ET | 8-K | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001436126-24-000013 |
| 2024-02-1414:58 ET | SC 13D/A | Ownership report, active investor, amended | 0001436126-24-000007 |
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 27, 2026, 08:43 ET. Listed shows no prices and gives no investment advice.