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MKS INC

CIK: 1049502 SIC: 3823
Profile Financials
1000
Total Filings
14
Filing Categories
48
Financial Reports
All Categories 1000 Financial Reports 81 Current Event Reports 198 Registration Statements 2 Proxy & Shareholder Statements 42 Prospectus Filings 6 Insider Trading 1403 Beneficial Ownership 129 Securities Sales 58 Employee Benefit Plans 5 Specialized Disclosure 12 Annual Reports to Shareholders 12 SEC Correspondence 23 SEC Orders 22 Other Filings 7

Beneficial Ownership

Reports of significant ownership stakes (5%+)

66 filings
Form Filing Type Period Filed Date Action
SCHEDULE 13G
Passive Ownership Report
Schedule 13G - passive beneficial ownership
-
2026-04-30
 Local
SCHEDULE 13G
Passive Ownership Report
Schedule 13G - passive beneficial ownership
-
2026-04-29
 Local
SCHEDULE 13G/A
Amended Schedule 13G
Amendment to Schedule 13G
-
2026-03-27
 SEC
SCHEDULE 13G/A
Amended Schedule 13G
Amendment to Schedule 13G
-
2026-02-17
 Local
SCHEDULE 13G
Passive Ownership Report
Schedule 13G - passive beneficial ownership
-
2026-02-12
 Local
SCHEDULE 13G/A
Amended Schedule 13G
Amendment to Schedule 13G
-
2025-10-31
 SEC
SCHEDULE 13G/A
Amended Schedule 13G
Amendment to Schedule 13G
-
2025-10-17
 SEC
SCHEDULE 13G/A
Amended Schedule 13G
Amendment to Schedule 13G
-
2025-08-14
 SEC
SCHEDULE 13G/A
Amended Schedule 13G
Amendment to Schedule 13G
-
2025-08-08
 SEC
SCHEDULE 13G
Passive Ownership Report
Schedule 13G - passive beneficial ownership
-
2025-08-08
 SEC
SCHEDULE 13G/A
Amended Schedule 13G
Amendment to Schedule 13G
-
2025-02-14
 SEC
SCHEDULE 13G/A
Amended Schedule 13G
Amendment to Schedule 13G
-
2025-02-07
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2024-11-14
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2024-11-07
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2024-09-10
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2024-02-13
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2024-02-12
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2024-02-09
 SEC
SC 13G
Passive Ownership Report
Schedule 13G - passive beneficial ownership over 5%
-
2024-02-09
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2024-02-07
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2024-01-24
 SEC
SC 13G
Passive Ownership Report
Schedule 13G - passive beneficial ownership over 5%
-
2024-01-10
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2023-06-09
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2023-02-10
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2023-02-10
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2023-02-09
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2023-02-07
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2023-02-06
 SEC
SC 13G
Passive Ownership Report
Schedule 13G - passive beneficial ownership over 5%
-
2023-02-02
 SEC
SC 13G
Passive Ownership Report
Schedule 13G - passive beneficial ownership over 5%
-
2022-08-29
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2022-02-11
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2022-02-10
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2022-02-04
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2022-02-01
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2021-06-10
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2021-02-16
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2021-02-10
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2021-02-04
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2021-01-29
 SEC
SC 13G
Passive Ownership Report
Schedule 13G - passive beneficial ownership over 5%
-
2020-02-14
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2020-02-12
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2020-02-05
 SEC
SC 13G
Passive Ownership Report
Schedule 13G - passive beneficial ownership over 5%
-
2020-01-30
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2019-02-12
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2019-02-11
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2019-02-06
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2018-02-09
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2018-02-09
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2018-02-08
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2018-01-23
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2017-10-10
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2017-02-10
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2017-02-10
 SEC
SC 13G
Passive Ownership Report
Schedule 13G - passive beneficial ownership over 5%
-
2017-02-09
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2017-02-09
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2017-02-01
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2017-01-12
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2016-10-07
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2016-02-10
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2016-02-09
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2016-01-26
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2016-01-19
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2015-02-11
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2015-02-05
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2015-01-22
 SEC
SC 13G/A
Amended 13G
Amendment to Schedule 13G
-
2015-01-13
 SEC

Filing categories are based on SEC form types. Click on any filing to view detailed financial data.

Legend: Financial Reports Current Event Reports Registration Statements Proxy & Shareholder Statements Prospectus Filings Insider Trading Beneficial Ownership Securities Sales Employee Benefit Plans Specialized Disclosure Annual Reports to Shareholders SEC Correspondence SEC Orders Other Filings

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