MKS Inc (MKSI) stock trades by Congress

Sector: Technology

Members of Congress disclosed 11 trades in MKS Inc (MKSI) between Apr 2025 and Oct 2025: 6 purchases and 5 sales by 2 members. The most active were Ro Khanna (D-CA, 7 trades) and Lisa McClain (R-MI, 4 trades). The latest trade listed here is from October 31, 2025.

Trades (2 years)
11
Purchases
6
Sales
5
Members
2

Democrat Democrats: 7Republican Republicans: 4

Which members of Congress traded MKSI?

Who else trades MKSI?

  • Steve Cohen (Point72) held MKSI in the 13F filing for the quarter ended June 30, 2026.
  • Ray Dalio (Bridgewater) held MKSI in the 13F filing for the quarter ended June 30, 2026.

Positions, changes and the full presidential record are in Celebrity Portfolio, part of TraderCongress Pro.

Latest MKSI trades by members of Congress

The 11 most recent trades older than 60 days, as filed: amounts are the disclosed ranges.

MemberTradeAmountTradedDisclosed
Lisa McClainR-MI · HouseSell$1K–15KOct 31, 2025Nov 21, 2025
Lisa McClainR-MI · HouseBuy$1K–15KOct 30, 2025Nov 21, 2025
Lisa McClainR-MI · HouseSell$1K–15KOct 30, 2025Nov 21, 2025
Lisa McClainR-MI · HouseBuy$1K–15KAug 4, 2025Sep 12, 2025
Ro KhannaD-CA · HouseSell$1K–15KApr 17, 2025May 12, 2025
Ro KhannaD-CA · HouseSell$1K–15KApr 16, 2025May 12, 2025
Ro KhannaD-CA · HouseSell$15K–50KApr 15, 2025May 12, 2025
Ro KhannaD-CA · HouseBuy$1K–15KApr 10, 2025May 12, 2025
Ro KhannaD-CA · HouseBuy$1K–15KApr 8, 2025May 12, 2025
Ro KhannaD-CA · HouseBuy$1K–15KApr 4, 2025May 12, 2025
Ro KhannaD-CA · HouseBuy$15K–50KApr 3, 2025May 12, 2025

Frequently asked questions

Which members of Congress traded MKSI?
2 members of Congress disclosed trades in MKS Inc (MKSI) in the last two years, led by Ro Khanna (7 trades) and Lisa McClain (4 trades).
Is Congress buying or selling MKSI?
Members have been both buying and selling MKSI: 6 purchases and 5 sales. Democrats made 7 trades and Republicans 4 trades.
When did a member of Congress last trade MKSI?
The latest trade listed here is from October 31, 2025. Members have up to 45 days to disclose a trade, so newer ones appear as they are filed.
Do famous investors own MKSI?
Yes. In their latest SEC 13F filings, Steve Cohen and Ray Dalio reported holding MKSI. TraderCongress Pro shows their positions and changes in Celebrity Portfolio.