MKS INC - MKSI
All tracked SEC files for this issuer. Showing up to 200 latest records.
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Open ownership details
Form 4 = insider transactions report. Form 144 = notice of proposed sale (not a completed trade confirmation).
Files summary
Total files loaded: 75
Latest filed: May 22, 2026
| Form | Count |
|---|---|
| 4 | 42 |
| 144 | 21 |
| 8-K | 7 |
| SCHEDULE 13G/A | 3 |
| SCHEDULE 13G | 2 |
Latest files
| Filed | Form | Report period | Accession | SEC |
|---|---|---|---|---|
| May 22, 2026 | 144 | — | 0001959173-26-003917 | View |
| May 22, 2026 | 144 | — | 0001959173-26-003908 | View |
| May 19, 2026 | 4 | May 18, 2026 | 0001049502-26-000086 | View |
| May 18, 2026 | 144 | — | 0001959173-26-003694 | View |
| May 15, 2026 | 4 | May 14, 2026 | 0001049502-26-000084 | View |
| May 14, 2026 | 144 | — | 0001959173-26-003610 | View |
| May 14, 2026 | 4 | May 13, 2026 | 0001049502-26-000082 | View |
| May 13, 2026 | 144 | — | 0001959173-26-003542 | View |
| May 12, 2026 | 8-K | May 11, 2026 | 0001193125-26-219474 | View |
| May 12, 2026 | 4 | May 11, 2026 | 0001049502-26-000064 | View |
| May 12, 2026 | 4 | May 11, 2026 | 0001049502-26-000066 | View |
| May 12, 2026 | 4 | May 11, 2026 | 0001049502-26-000068 | View |
| May 12, 2026 | 4 | May 11, 2026 | 0001049502-26-000070 | View |
| May 12, 2026 | 4 | May 11, 2026 | 0001049502-26-000072 | View |
| May 12, 2026 | 4 | May 11, 2026 | 0001049502-26-000074 | View |
| May 12, 2026 | 4 | May 11, 2026 | 0001049502-26-000076 | View |
| May 12, 2026 | 4 | May 11, 2026 | 0001049502-26-000078 | View |
| May 12, 2026 | 4 | May 11, 2026 | 0001049502-26-000080 | View |
| May 11, 2026 | 144 | — | 0001959173-26-003492 | View |
| May 11, 2026 | 144 | — | 0001959173-26-003470 | View |
| May 06, 2026 | 8-K | May 06, 2026 | 0001193125-26-209140 | View |
| May 06, 2026 | SCHEDULE 13G/A | — | 0000315066-26-001257 | View |
| Apr 30, 2026 | SCHEDULE 13G | — | 0002100119-26-000852 | View |
| Apr 29, 2026 | SCHEDULE 13G | — | 0002100121-26-000457 | View |
| Apr 20, 2026 | 4 | Apr 17, 2026 | 0001049502-26-000061 | View |
| Apr 16, 2026 | 4 | Apr 15, 2026 | 0001049502-26-000059 | View |
| Apr 06, 2026 | 8-K | Mar 31, 2026 | 0001193125-26-142945 | View |
| Mar 27, 2026 | SCHEDULE 13G/A | — | 0000102909-26-001828 | View |
| Mar 13, 2026 | 4 | Mar 12, 2026 | 0001049502-26-000057 | View |
| Mar 12, 2026 | 144 | — | 0001959173-26-002247 | View |
| Mar 09, 2026 | 4 | Mar 06, 2026 | 0001049502-26-000055 | View |
| Mar 06, 2026 | 144 | — | 0001959173-26-002016 | View |
| Mar 03, 2026 | 4 | Mar 02, 2026 | 0001049502-26-000053 | View |
| Mar 02, 2026 | 144 | — | 0001959173-26-001633 | View |
| Feb 25, 2026 | 4 | Feb 24, 2026 | 0001049502-26-000051 | View |
| Feb 24, 2026 | 4 | Feb 20, 2026 | 0001049502-26-000049 | View |
| Feb 24, 2026 | 144 | — | 0001959173-26-001386 | View |
| Feb 23, 2026 | 4 | Feb 20, 2026 | 0001049502-26-000030 | View |
| Feb 23, 2026 | 4 | Feb 20, 2026 | 0001049502-26-000032 | View |
| Feb 23, 2026 | 4 | Feb 20, 2026 | 0001049502-26-000034 | View |
| Feb 23, 2026 | 4 | Feb 20, 2026 | 0001049502-26-000036 | View |
| Feb 23, 2026 | 4 | Feb 20, 2026 | 0001049502-26-000038 | View |
| Feb 23, 2026 | 4 | Feb 20, 2026 | 0001049502-26-000040 | View |
| Feb 23, 2026 | 4 | Feb 20, 2026 | 0001049502-26-000042 | View |
| Feb 23, 2026 | 4 | Feb 20, 2026 | 0001049502-26-000045 | View |
| Feb 20, 2026 | 144 | — | 0001959173-26-001257 | View |
| Feb 20, 2026 | 144 | — | 0001959173-26-001258 | View |
| Feb 20, 2026 | 144 | — | 0001959173-26-001259 | View |
| Feb 20, 2026 | 144 | — | 0001959173-26-001260 | View |
| Feb 20, 2026 | 144 | — | 0001959173-26-001262 | View |
| Feb 20, 2026 | 144 | — | 0001959173-26-001268 | View |
| Feb 20, 2026 | 144 | — | 0001959173-26-001278 | View |
| Feb 20, 2026 | 144 | — | 0001959173-26-001284 | View |
| Feb 20, 2026 | 144 | — | 0001628280-26-010228 | View |
| Feb 18, 2026 | 4 | Feb 17, 2026 | 0001049502-26-000016 | View |
| Feb 18, 2026 | 4 | Feb 17, 2026 | 0001049502-26-000018 | View |
| Feb 18, 2026 | 4 | Feb 17, 2026 | 0001049502-26-000020 | View |
| Feb 18, 2026 | 4 | Feb 17, 2026 | 0001049502-26-000022 | View |
| Feb 18, 2026 | 4 | Feb 17, 2026 | 0001049502-26-000024 | View |
| Feb 18, 2026 | 4 | Feb 17, 2026 | 0001049502-26-000026 | View |
| Feb 18, 2026 | 4 | Feb 17, 2026 | 0001049502-26-000028 | View |
| Feb 17, 2026 | SCHEDULE 13G/A | — | 0000080255-26-000257 | View |
| Feb 17, 2026 | 8-K | Feb 17, 2026 | 0001193125-26-054841 | View |
| Feb 09, 2026 | 4 | Feb 08, 2026 | 0001049502-26-000002 | View |
| Feb 09, 2026 | 4 | Feb 08, 2026 | 0001049502-26-000004 | View |
| Feb 09, 2026 | 4 | Feb 08, 2026 | 0001049502-26-000006 | View |
| Feb 09, 2026 | 4 | Feb 08, 2026 | 0001049502-26-000008 | View |
| Feb 09, 2026 | 4 | Feb 08, 2026 | 0001049502-26-000010 | View |
| Feb 09, 2026 | 4 | Feb 08, 2026 | 0001049502-26-000012 | View |
| Feb 09, 2026 | 4 | Feb 08, 2026 | 0001049502-26-000014 | View |
| Feb 05, 2026 | 8-K | Feb 04, 2026 | 0001193125-26-038565 | View |
| Jan 28, 2026 | 8-K | Jan 26, 2026 | 0001193125-26-027243 | View |
| Jan 21, 2026 | 8-K | Jan 21, 2026 | 0001193125-26-017468 | View |
| Dec 03, 2025 | 4 | Dec 02, 2025 | 0001049502-25-000041 | View |
| Dec 02, 2025 | 144 | — | 0001959173-25-007412 | View |