MKS INC (MKSI) Insider Trading Disclosures
MKS INC (MKSI) is a publicly traded company on the Nasdaq, categorized under SIC 3823 (Industrial Instruments For Measurement, Display, and Control). Access real-time SEC filings, 10-K annual reports, 10-Q quarterlies, 8-K current reports, PCAOB auditor history, and executive compensation disclosures.
Ticker: MKSI
CIK: 1049502
Exchange: Nasdaq
SIC 3823: Industrial Instruments For Measurement, Display, and Control
Fiscal Year End: 12/31
State: MA
Independent PCAOB Auditor
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Audit Firm
PricewaterhouseCoopers LLP
Auditor SinceSince 12/31/2016 12:00:00 AM
Lead Engagement PartnerKevin Twomey
Audit LocationBoston, Massachusetts, United States
Latest SEC EDGAR Filings
Showing 10-K, 10-Q, 8-K, Form 4, and other SEC submissions| Form | Filing Date | Reporting Period | Description | Accession Number | Actions |
|---|---|---|---|---|---|
| SCHEDULE 13G/A | 2026-09-03 | — | SCHEDULE 13G/A Filing | 0000019617-26-000334 | View SEC Doc Filr Page |
| 4 | 2026-09-02 | 2026-09-01 | PRIMARY DOCUMENT | 0001049502-26-000119 | View SEC Doc Filr Page |
| 144 | 2026-09-01 | — | 144 Filing | 0001959173-26-006576 | View SEC Doc Filr Page |
| 4 | 2026-08-18 | 2026-08-17 | PRIMARY DOCUMENT | 0001049502-26-000115 | View SEC Doc Filr Page |
| 4 | 2026-08-17 | 2026-08-14 | PRIMARY DOCUMENT | 0001049502-26-000113 | View SEC Doc Filr Page |
| 144 | 2026-08-14 | — | 144 Filing | 0001959173-26-006008 | View SEC Doc Filr Page |
| 10-Q | 2026-08-06 | 2026-06-30 | 10-Q | 0001193125-26-337821 | View SEC Doc Filr Page |
| 8-K | 2026-08-05 | 2026-08-05 | 8-K | 0001193125-26-335274 | View SEC Doc Filr Page |
| 4 | 2026-08-04 | 2026-08-03 | PRIMARY DOCUMENT | 0001049502-26-000111 | View SEC Doc Filr Page |
| 144 | 2026-08-03 | — | 144 Filing | 0001959173-26-005513 | View SEC Doc Filr Page |
| SCHEDULE 13G/A | 2026-07-24 | — | SCHEDULE 13G/A Filing | 0001040188-26-000038 | View SEC Doc Filr Page |
| SCHEDULE 13G | 2026-07-16 | — | SCHEDULE 13G Filing | 0000019617-26-000266 | View SEC Doc Filr Page |
| 4 | 2026-06-16 | 2026-06-12 | PRIMARY DOCUMENT | 0001049502-26-000109 | View SEC Doc Filr Page |
| 144 | 2026-06-12 | — | 144 Filing | 0001959173-26-004596 | View SEC Doc Filr Page |
| 4 | 2026-06-11 | 2026-06-10 | PRIMARY DOCUMENT | 0001049502-26-000107 | View SEC Doc Filr Page |
| 144 | 2026-06-10 | — | 144 Filing | 0001959173-26-004502 | View SEC Doc Filr Page |
| 4 | 2026-06-08 | 2026-06-05 | PRIMARY DOCUMENT | 0001049502-26-000105 | View SEC Doc Filr Page |
| 144 | 2026-06-05 | — | 144 Filing | 0001959173-26-004374 | View SEC Doc Filr Page |
| 3 | 2026-06-04 | 2026-06-01 | PRIMARY DOCUMENT | 0001049502-26-000103 | View SEC Doc Filr Page |
| 4 | 2026-06-02 | 2026-06-01 | PRIMARY DOCUMENT | 0001049502-26-000100 | View SEC Doc Filr Page |
| 4 | 2026-06-02 | 2026-06-01 | PRIMARY DOCUMENT | 0001049502-26-000098 | View SEC Doc Filr Page |
| 144 | 2026-06-01 | — | 144 Filing | 0001959173-26-004194 | View SEC Doc Filr Page |
| 144 | 2026-06-01 | — | 144 Filing | 0001959173-26-004173 | View SEC Doc Filr Page |
| SD | 2026-05-28 | — | SD | 0001193125-26-245263 | View SEC Doc Filr Page |
| 4 | 2026-05-28 | 2026-05-27 | PRIMARY DOCUMENT | 0001049502-26-000096 | View SEC Doc Filr Page |