| Filed On | Filing |
|---|---|
| 31 Mar 2026 | DEF 14A |
| 01 Apr 2025 | DEF 14A |
| 27 Mar 2024 | DEF 14A |
| 05 Apr 2023 | DEF 14A |
| 31 Mar 2022 | DEF 14A |
| 26 Mar 2021 | DEF 14A |
| 27 Mar 2020 | DEF 14A |
| 28 Mar 2019 | DEFINITIVE PROXY STATEMENT |
| 28 Mar 2018 | DEF 14A |
| 24 Mar 2017 | DEF 14A |
| 16 Mar 2016 | DEFINITIVE PROXY STATEMENT |
| 13 Mar 2015 | DEFINITIVE PROXY STATEMENT |
| 24 Mar 2014 | DEF 14A |
| 14 Mar 2013 | DEFINITIVE PROXY STATEMENT |
| 14 Mar 2012 | NOTICE AND PROXY |
| 09 Mar 2011 | MKS INSTRUMENTS, INC. |
| 10 Mar 2010 | DEF 14A |
| 23 Mar 2009 | MKS INSTRUMENTS, INC. |
| 17 Mar 2008 | MKS INSTRUMENTS |
| 28 Mar 2007 | DEF 14A - MKS INSTRUMENTS, INC. |
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