MKS Inc SEC filings MKSI
MKS Inc has 1,001 filings in SEC EDGAR's recent list, going back to Nov 5, 2014. Its latest annual report, Form ARS, was filed on Mar 31, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 5, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 4, 2026 (results of operations, bylaw or fiscal year change, regulation fd disclosure, other events). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 10-Q | Quarterly report | Nov 5, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Results of operations, Bylaw or fiscal year change, Regulation FD disclosure, Other events
|
Nov 4, 2026 | Nov 2, 2026 |
| 8-K |
Current report
Other events
|
Oct 19, 2026 | Oct 19, 2026 |
| 10-Q | Quarterly report | Aug 6, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2026 | Aug 5, 2026 |
| SD | Specialized disclosure (conflict minerals) | May 28, 2026 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 12, 2026 | May 11, 2026 |
| S-8 | Employee stock plan registration | May 11, 2026 | — |
| 10-Q | Quarterly report | May 7, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 6, 2026 | May 6, 2026 |
| 8-K |
Current report
Officer or director change
|
Apr 6, 2026 | Mar 31, 2026 |
| ARS | Annual report to shareholders | Mar 31, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Mar 31, 2026 | — |
| DEF 14A | Proxy statement | Mar 31, 2026 | May 11, 2026 |
| PRE 14A | Preliminary proxy statement | Mar 20, 2026 | May 11, 2026 |
| 10-K | Annual report | Feb 24, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Feb 17, 2026 | Feb 17, 2026 |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure
|
Feb 5, 2026 | Feb 4, 2026 |
| 8-K |
Current report
Other events
|
Jan 28, 2026 | Jan 26, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jan 21, 2026 | Jan 21, 2026 |
| 10-Q | Quarterly report | Nov 6, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 5, 2025 | Nov 5, 2025 |
| 10-Q | Quarterly report | Aug 7, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2025 | Aug 6, 2025 |
| SD | Specialized disclosure (conflict minerals) | May 29, 2025 | — |
| 8-K |
Current report
Change to shareholder rights, Officer or director change, Bylaw or fiscal year change, Shareholder vote results, Regulation FD disclosure
|
May 15, 2025 | May 12, 2025 |
| 10-Q | Quarterly report | May 8, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
May 7, 2025 | May 7, 2025 |
| ARS | Annual report to shareholders | Apr 1, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Apr 1, 2025 | — |
| DEF 14A | Proxy statement | Apr 1, 2025 | May 12, 2025 |
| PRE 14A | Preliminary proxy statement | Mar 21, 2025 | May 12, 2025 |
| 10-K | Annual report | Feb 25, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations
|
Feb 12, 2025 | Feb 12, 2025 |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure
|
Jan 24, 2025 | Jan 24, 2025 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Dec 3, 2024 | Dec 2, 2024 |
| 10-Q | Quarterly report | Nov 7, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 6, 2024 | Nov 6, 2024 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Nov 5, 2024 | Nov 4, 2024 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Aug 13, 2024 | Aug 5, 2024 |
| 10-Q | Quarterly report | Aug 8, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 7, 2024 | Aug 7, 2024 |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure
|
Jul 23, 2024 | Jul 23, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 20, 2024 | Jun 20, 2024 |
| SD | Specialized disclosure (conflict minerals) | May 23, 2024 | — |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale
|
May 16, 2024 | May 16, 2024 |
| 8-K |
Current report
Other events
|
May 14, 2024 | May 13, 2024 |
| 8-K |
Current report
Other events
|
May 13, 2024 | May 13, 2024 |
| 10-Q | Quarterly report | May 9, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
May 8, 2024 | May 8, 2024 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 8, 2024 | May 7, 2024 |
| 8-K |
Current report
Officer or director change
|
Apr 1, 2024 | Apr 1, 2024 |
| ARS | Annual report to shareholders | Mar 27, 2024 | Dec 31, 2023 |
| DEFA14A | Additional proxy material | Mar 27, 2024 | — |
| DEF 14A | Proxy statement | Mar 27, 2024 | May 7, 2024 |
| EFFECT | Filing | Feb 29, 2024 | — |
| 10-K | Annual report | Feb 27, 2024 | Dec 31, 2023 |
| POS AM | Filing | Feb 21, 2024 | — |
| 8-K |
Current report
Material agreement, New debt
|
Feb 14, 2024 | Feb 13, 2024 |
| 8-K |
Current report
Officer or director change
|
Feb 8, 2024 | Feb 5, 2024 |
| 8-K |
Current report
Results of operations
|
Feb 7, 2024 | Feb 7, 2024 |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure
|
Jan 22, 2024 | Jan 22, 2024 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Dec 4, 2023 | Dec 1, 2023 |
| 10-Q | Quarterly report | Nov 8, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 1, 2023 | Nov 1, 2023 |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure
|
Oct 3, 2023 | Oct 3, 2023 |
| 10-Q | Quarterly report | Aug 4, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 2, 2023 | Aug 2, 2023 |
| 8-K |
Current report
Material agreement, Other events
|
Jun 5, 2023 | Jun 1, 2023 |
| 424B7 | Filing | Jun 5, 2023 | — |
| 424B7 | Filing | Jun 1, 2023 | — |
| SD | Specialized disclosure (conflict minerals) | May 25, 2023 | — |
| 8-K |
Current report
Shareholder vote results
|
May 18, 2023 | May 16, 2023 |
| 10-Q | Quarterly report | May 5, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Results of operations
|
May 3, 2023 | May 3, 2023 |
| ARS | Annual report to shareholders | Apr 5, 2023 | Dec 31, 2022 |
| DEFA14A | Additional proxy material | Apr 5, 2023 | — |
| DEF 14A | Proxy statement | Apr 5, 2023 | — |
| 10-K | Annual report | Mar 14, 2023 | Dec 31, 2022 |
| NT 10-K | Filing | Feb 27, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Results of operations
|
Feb 27, 2023 | Feb 27, 2023 |
| 8-K |
Current report
Other events
|
Feb 13, 2023 | Feb 13, 2023 |
| 8-K |
Current report
Other events
|
Feb 6, 2023 | Feb 3, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Dec 13, 2022 | Dec 13, 2022 |
| 10-Q | Quarterly report | Nov 7, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Results of operations
|
Nov 2, 2022 | Nov 2, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 31, 2022 | Aug 31, 2022 |
| S-3ASR | Automatic shelf registration | Aug 24, 2022 | — |
| 8-K/A | Amended current report | Aug 24, 2022 | Aug 17, 2022 |
| 8-K |
Current report
Material agreement, Agreement ended, Acquisition or sale of assets, New debt, Unregistered share sale, Officer or director change, Other events
|
Aug 17, 2022 | Aug 17, 2022 |
| 8-K/A |
Amended current report
Officer or director change
|
Aug 17, 2022 | Oct 25, 2021 |
| 10-Q | Quarterly report | Aug 3, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Other events
|
Jul 28, 2022 | Jul 28, 2022 |
| 8-K |
Current report
Results of operations
|
Jul 27, 2022 | Jul 27, 2022 |
| SD | Specialized disclosure (conflict minerals) | May 26, 2022 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 11, 2022 | May 10, 2022 |
| S-8 | Employee stock plan registration | May 10, 2022 | — |
| 10-Q | Quarterly report | May 2, 2022 | Mar 31, 2022 |
| 8-K |
Current report
Results of operations
|
Apr 26, 2022 | Apr 26, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 5, 2022 | Apr 5, 2022 |
| 8-K |
Current report
Material agreement, Agreement ended, Regulation FD disclosure
|
Apr 1, 2022 | Apr 1, 2022 |
| DEFA14A | Additional proxy material | Mar 31, 2022 | — |
| DEF 14A | Proxy statement | Mar 31, 2022 | May 10, 2022 |
| 10-K | Annual report | Feb 28, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Officer or director change
|
Feb 11, 2022 | Feb 7, 2022 |
| 8-K |
Current report
Results of operations
|
Jan 26, 2022 | Jan 26, 2022 |
| 8-K |
Current report
Other events
|
Dec 14, 2021 | Dec 14, 2021 |
| 10-Q | Quarterly report | Nov 3, 2021 | Sep 30, 2021 |
| 8-K |
Current report
Material agreement, Officer or director change
|
Oct 29, 2021 | Oct 25, 2021 |
| 8-K |
Current report
Results of operations
|
Oct 27, 2021 | Oct 27, 2021 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Oct 4, 2021 | Oct 4, 2021 |
| 10-Q | Quarterly report | Aug 5, 2021 | Jun 30, 2021 |
| 8-K |
Current report
Results of operations
|
Jul 28, 2021 | Jul 28, 2021 |
| 8-K |
Current report
Other events
|
Jul 15, 2021 | Jul 15, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Jul 8, 2021 | Jul 8, 2021 |
| 8-K |
Current report
Material agreement
|
Jul 2, 2021 | Jul 1, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Jul 1, 2021 | Jul 1, 2021 |
| SD | Specialized disclosure (conflict minerals) | May 27, 2021 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 12, 2021 | May 11, 2021 |
| 8-K |
Current report
Material agreement, Other events
|
May 10, 2021 | May 6, 2021 |
| 10-Q | Quarterly report | May 4, 2021 | Mar 31, 2021 |
| 8-K |
Current report
Results of operations
|
Apr 26, 2021 | Apr 26, 2021 |
| DEFA14A | Additional proxy material | Mar 26, 2021 | — |
| DEF 14A | Proxy statement | Mar 26, 2021 | May 11, 2021 |
| 425 | Filing | Mar 8, 2021 | — |
| 8-K |
Current report
Other events
|
Mar 8, 2021 | Mar 8, 2021 |
| 8-K |
Current report
Officer or director change
|
Feb 26, 2021 | Feb 24, 2021 |
| 10-K | Annual report | Feb 23, 2021 | Dec 31, 2020 |
| 425 | Filing | Feb 17, 2021 | — |
| 8-K |
Current report
Other events
|
Feb 17, 2021 | Feb 17, 2021 |
| 425 | Filing | Feb 16, 2021 | — |
| 8-K |
Current report
Other events
|
Feb 16, 2021 | Feb 16, 2021 |
| 425 | Filing | Feb 8, 2021 | — |
| 8-K |
Current report
Other events
|
Feb 8, 2021 | Feb 8, 2021 |
| 8-K |
Current report
Results of operations
|
Jan 27, 2021 | Jan 27, 2021 |
| 10-Q | Quarterly report | Nov 3, 2020 | Sep 30, 2020 |
| 8-K |
Current report
Results of operations
|
Oct 27, 2020 | Oct 27, 2020 |
| 10-Q | Quarterly report | Aug 3, 2020 | Jun 30, 2020 |
| 8-K |
Current report
Results of operations
|
Jul 29, 2020 | Jul 29, 2020 |
| SD | Specialized disclosure (conflict minerals) | May 29, 2020 | — |
| 8-K |
Current report
Shareholder vote results
|
May 13, 2020 | May 11, 2020 |
| 10-Q | Quarterly report | May 6, 2020 | Mar 31, 2020 |
| 8-K |
Current report
Results of operations
|
Apr 28, 2020 | Apr 28, 2020 |
| DEFA14A | Additional proxy material | Apr 8, 2020 | — |
| DEFA14A | Additional proxy material | Mar 27, 2020 | — |
| DEF 14A | Proxy statement | Mar 27, 2020 | May 12, 2020 |
| 10-K | Annual report | Feb 28, 2020 | Dec 31, 2019 |
| 8-K |
Current report
Officer or director change
|
Feb 12, 2020 | Feb 10, 2020 |
| 8-K |
Current report
Results of operations
|
Jan 28, 2020 | Jan 28, 2020 |
| 8-K |
Current report
Officer or director change
|
Nov 20, 2019 | Nov 18, 2019 |
| 10-Q | Quarterly report | Nov 6, 2019 | Sep 30, 2019 |
| 8-K |
Current report
Officer or director change
|
Nov 1, 2019 | Oct 28, 2019 |
| 8-K |
Current report
Results of operations
|
Oct 23, 2019 | Oct 23, 2019 |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure
|
Oct 1, 2019 | Sep 27, 2019 |
| 8-K |
Current report
Officer or director change
|
Sep 18, 2019 | Sep 16, 2019 |
| 10-Q | Quarterly report | Aug 7, 2019 | Jun 30, 2019 |
| 8-K |
Current report
Results of operations
|
Jul 30, 2019 | Jul 30, 2019 |
| SD | Specialized disclosure (conflict minerals) | May 30, 2019 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 9, 2019 | May 8, 2019 |
| 10-Q | Quarterly report | May 8, 2019 | Mar 31, 2019 |
| DEFA14A | Additional proxy material | Apr 30, 2019 | — |
| 8-K |
Current report
Results of operations
|
Apr 29, 2019 | Apr 29, 2019 |
| 8-K/A | Amended current report | Apr 15, 2019 | Feb 1, 2019 |
| DEFA14A | Additional proxy material | Mar 28, 2019 | — |
| DEF 14A | Proxy statement | Mar 28, 2019 | May 8, 2019 |
| 10-K | Annual report | Feb 26, 2019 | Dec 31, 2018 |
| S-8 | Employee stock plan registration | Feb 1, 2019 | — |
| 8-K |
Current report
Material agreement, Agreement ended, Acquisition or sale of assets, New debt, Other events
|
Feb 1, 2019 | Feb 1, 2019 |
| 8-K |
Current report
Results of operations
|
Jan 29, 2019 | Jan 29, 2019 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jan 9, 2019 | Jan 9, 2019 |
| 8-K |
Current report
Other events
|
Dec 14, 2018 | Dec 10, 2018 |
| DFAN14A | 8-k | Dec 14, 2018 | — |
| 10-Q | Quarterly report | Nov 6, 2018 | Sep 30, 2018 |
| 8-K |
Current report
Other events
|
Nov 1, 2018 | Nov 1, 2018 |
| DFAN14A | 8-k | Nov 1, 2018 | — |
| 8-K |
Current report
Officer or director change
|
Nov 1, 2018 | Oct 29, 2018 |
| 8-K |
Current report
Material agreement, Other events
|
Oct 30, 2018 | Oct 29, 2018 |
| DFAN14A | 8-k | Oct 30, 2018 | — |
| 8-K |
Current report
Other events
|
Oct 30, 2018 | Oct 30, 2018 |
| DFAN14A | Form 8-k | Oct 30, 2018 | — |
| 8-K |
Current report
Results of operations
|
Oct 23, 2018 | Oct 23, 2018 |
| 10-Q | Quarterly report | Aug 7, 2018 | Jun 30, 2018 |
| 8-K |
Current report
Officer or director change
|
Jul 31, 2018 | Jul 30, 2018 |
| 8-K |
Current report
Results of operations
|
Jul 24, 2018 | Jul 24, 2018 |
| 8-K |
Current report
Officer or director change
|
Jun 7, 2018 | Jun 5, 2018 |
| SD | Specialized disclosure (conflict minerals) | May 30, 2018 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results, Regulation FD disclosure
|
May 11, 2018 | May 9, 2018 |
| 10-Q | Quarterly report | May 8, 2018 | Mar 31, 2018 |
| 8-K |
Current report
Results of operations
|
Apr 24, 2018 | Apr 24, 2018 |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure
|
Apr 12, 2018 | Apr 11, 2018 |
| DEFA14A | Additional proxy material | Mar 28, 2018 | — |
| DEF 14A | Proxy statement | Mar 28, 2018 | May 9, 2018 |
| 10-K | Annual report | Feb 28, 2018 | Dec 31, 2017 |
| 8-K |
Current report
Officer or director change
|
Feb 15, 2018 | Feb 12, 2018 |
| 8-K |
Current report
Results of operations
|
Jan 31, 2018 | Jan 31, 2018 |
| 10-Q | Quarterly report | Nov 3, 2017 | Sep 30, 2017 |
| 8-K |
Current report
Results of operations
|
Oct 24, 2017 | Oct 24, 2017 |
| 10-Q | Quarterly report | Aug 3, 2017 | Jun 30, 2017 |
| 8-K |
Current report
Results of operations
|
Jul 25, 2017 | Jul 25, 2017 |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure
|
Jul 6, 2017 | Jul 6, 2017 |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Industrial Instruments For Measurement, Display, and Control (SIC 3823)
- Listed as
- MKSI (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- MA
- Headquarters
- Andover, MA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1049502
- Former names
- MKS INSTRUMENTS INC (until May 15, 2025)
Other Industrial Instruments For Measurement, Display, and Control companies
- Danaher Corp /DE/ DHR
- Ametek INC/ AME
- Keysight Technologies, Inc. KEYS
- Roper Technologies Inc ROP
- Fortive Corp FTV
- Cognex Corp CGNX
- Ralliant Corp RAL
- Sensata Technologies Holding plc ST
All 18 Industrial Instruments For Measurement, Display, and Control companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.