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MKSI · Mks Inc · Congressional Trades

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$267.50 +2.14 (+0.81%)
S&P 400 member Russell 1000 member Rebalance outlook locked
Market Cap
$17.64B
Shares
67.62M
Volume · Sep 30 751.3K Avg daily vol (3M) 1.37M

Transactions in this listed security by members of the U.S. Congress, disclosed under the STOCK Act. Lawmakers must report trades within 45 days, so the filing date can lag the trade itself.

Query congressional trades through the STOCK Act API or MCP →
Date Member Type Amount
2025-10-31 Lisa McClain Sell ST · MKS Inc. - Common Stock (MKSI) $1K - $15K
2025-10-30 Lisa McClain Sell ST · MKS Inc. - Common Stock (MKSI) $1K - $15K
2025-10-30 Lisa McClain Buy ST · MKS Inc. - Common Stock (MKSI) $1K - $15K
2025-08-04 Lisa McClain Buy ST · MKS Inc. - Common Stock (MKSI) $1K - $15K
2025-08-04 Lisa McClain Buy ST · MKS Inc. - Common Stock (MKSI) F S: New $1K - $15K
2023-04-03 Thomas H Tuberville Sell Stock · MKS Instruments, Inc. - Common Stock $1K - $15K
2023-04-03 Thomas H Tuberville Sell Stock · MKS Instruments, Inc. - Common Stock $1K - $15K
2022-03-30 Thomas H Tuberville Buy Stock · MKS Instruments, Inc. - Common Stock $1K - $15K
Showing 1–8 of 8 trades
Key facts CIK 1049502 CUSIP 55306N104 13F (30d) 13 filings 13 filers Visit website Investor relations