MKSI

Mks Inc

Company with tickers: MKSI

CIK

1049502

CUSIP

55306N104

Shares Outstanding

67,544,129

Website

https://www.mks.com

13F Activity (30d)

20 filings 18 filers

Weekly off-exchange (dark pool / OTC) trading volume reported to FINRA under its OTC/ATS Transparency data. ATS volume is executed on alternating trading systems (dark pools); non-ATS OTC is other over-the-counter dealer volume. The off-exchange share is total off-exchange volume as a percentage of consolidated weekly trading volume for the same Monday–Friday week.

1M 3M 6M 1Y 5Y All

Off-Exchange Volume History

Week Start	ATS Volume	Non-ATS OTC Volume	Total Off-Exchange	% of FINRA Weekly Volume
2026-05-25	1,376,409	478,167	1,854,576	51.8%
2026-05-18	1,698,160	1,347,558	3,045,718	52.0%

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