MKSIMKSIMKS Inc. - Common Stock
4 members of Congress disclosed 9 transactions in MKSI between Mar 25, 2019 and Oct 31, 2025.
Price, with congressional trades marked
MKSI $305.11 latest
+226%
Lisa C. McClain, Republican
Lisa C. McClain, RepublicanLisa C. McClain, RepublicanMarked trades (2)
| Traded | Member | Amount | Adj. close | MKSI since | SPY since | Difference | |
|---|---|---|---|---|---|---|---|
| Aug 4, 2025 | Lisa C. McClain (R) | buy | ~$8K | $93.49 | +226.4% | +23.9% | +202.5% |
| Oct 30, 2025 | Lisa C. McClain (R) | sell | ~$8K | $138.78 | +119.8% | +14.6% | +105.2% |
Prices are dividend- and split-adjusted, so “adj. close” is not necessarily what the stock printed that day. The horizon runs to the latest close, so rows with different trade dates are not comparable to each other — and none of these is the benchmark-relative, fixed-window alpha the leaderboard ranks on.
9
Transactions
4 buys · 5 sells
4
Members
$72K
Est. volume
1D / 3R
Party split
distinct members
Transactions
9| Member | Type | Amount | Traded | Disclosed |
|---|---|---|---|---|
| Sellspouse | $1K – $15K | Oct 31, 2025 | Nov 21, 2025 21d | |
| Sellspouse | $1K – $15K | Oct 30, 2025 | Nov 21, 2025 22d | |
| Buyspouse | $1K – $15K | Oct 30, 2025 | Nov 21, 2025 22d | |
| Buyspouse | $1K – $15K | Aug 4, 2025 | Sep 12, 2025 39d | |
| Buychild | $1K – $15K | Apr 3, 2025 | May 12, 2025 39d | |
| Selljoint | $1K – $15K | Apr 3, 2023 | May 12, 2023 39d | |
| Selljoint | $1K – $15K | Apr 3, 2023 | May 11, 2023 38d | |
| Buyjoint | $1K – $15K | Mar 30, 2022 | Apr 8, 2022 9d | |
| Sellspouse | $1K – $15K | Mar 25, 2019 | Apr 15, 2019 21d |
Disclosures are filed up to 45 days after a trade, so this is a record rather than a signal. Amounts are bracket midpoints. Symbols are recorded as they existed on the trade date and mapped forward where a company was renamed.