Company facts
- Headquarters
- Andover, Massachusetts
- Most recent report
- 10-Q, filed Aug 6, 2026
- Incorporated
- Massachusetts
- Filings on record
- 1,000+ filings
- On EDGAR
- CIK 1049502
- Fiscal year ends
- December
- Filer status
- Large accelerated filer
Financials 8 of 48
News 8 of 135
Prospectuses and Registrations 6
- S-8 Registration statement for an employee plan May 11, 2026
- POS AM Post-effective amendment to a registration Feb 21, 2024
- S-3ASR Automatic shelf registration Aug 24, 2022
- S-8 Registration statement for an employee plan May 10, 2022
- S-8 Registration statement for an employee plan Feb 1, 2019
- S-8 Registration statement for an employee plan Apr 29, 2016
Proxies 8 of 25
- DEFA14A Extra proxy material Mar 31, 2026
- DEF 14A Proxy statement for a shareholder vote Mar 31, 2026
- PRE 14A Preliminary proxy statement Mar 20, 2026
- DEFA14A Extra proxy material Apr 1, 2025
- DEF 14A Proxy statement for a shareholder vote Apr 1, 2025
- PRE 14A Preliminary proxy statement Mar 21, 2025
- DEFA14A Extra proxy material Mar 27, 2024
- DEF 14A Proxy statement for a shareholder vote Mar 27, 2024
Ownership 8 of 743
- 4 Insider reported a trade Aug 18, 2026
- 4 Insider reported a trade Aug 17, 2026
- 144 Notice of a proposed sale of restricted stock Aug 14, 2026
- 4 Insider reported a trade Aug 4, 2026
- 144 Notice of a proposed sale of restricted stock Aug 3, 2026
- SCHEDULE 13G/A Large holder reported a passive stake, amended Jul 24, 2026
- SCHEDULE 13G Large holder reported a passive stake Jul 16, 2026
- 4 Insider reported a trade Jun 16, 2026
Other 8 of 43
- SD Conflict minerals disclosure May 28, 2026
- ARS Annual report sent to shareholders Mar 31, 2026
- SD Conflict minerals disclosure May 29, 2025
- ARS Annual report sent to shareholders Apr 1, 2025
- SD Conflict minerals disclosure May 23, 2024
- ARS Annual report sent to shareholders Mar 27, 2024
- EFFECT Notice that a registration became effective Feb 29, 2024
- 424B7 Jun 5, 2023
Everything here comes from Mks Inc's own filings on SEC EDGAR. The filing list is rechecked every hour.