Congress trading

Every stock trade disclosed by Congress

Every line of every STOCK Act report we hold, from House Clerk and Senate recordsEvery STOCK Act trade since 2014. Newest filing first, as of Oct 31, 2026; narrow the record by member, party, chamber, ticker, account or size, and every name and ticker opens its own page.

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Ticker MKSIRemoveFiled since 2014RemoveClear all

23 MKSI trades filed since 2014

Across 11 reports by 3 members · newest filing first · every Congress trade in the stock is on MKS's page

Sizes are the dollar ranges members report, never an exact amount. How to read the cards.

Since the trade: the stock's move from its estimated entry price (a purchase) or estimated exit price (a sale) to its current price, the latest close we hold. Not the member's result.

  1. Lisa C. McClainRepublican · House · MI
    Filed Nov 21, 20253 matching trades
    • sold MKSI MKS Spouse
      Traded Oct 31, 2025 · disclosed 21 days later
      $1,001 - $15,000
      Since the trade+40.6% since the saleEstimated exit price $143.71, close on Fri Oct 31, 2025Current price $202.04, close on Fri Oct 30
    • bought MKSI MKS Spouse
      Traded Oct 30, 2025 · disclosed 22 days later
      $1,001 - $15,000
      Since the trade+45.0% since the tradeEstimated entry price $139.31, close on Thu Oct 30, 2025Current price $202.04, close on Fri Oct 30
    • sold MKSI MKS Spouse
      Traded Oct 30, 2025 · disclosed 22 days later
      $1,001 - $15,000
      Since the trade+45.0% since the saleEstimated exit price $139.31, close on Thu Oct 30, 2025Current price $202.04, close on Fri Oct 30
  2. Lisa C. McClainRepublican · House · MI
    Filed Sep 12, 2025one matching trade
    • bought MKSI MKS Spouse
      Traded Aug 4, 2025 · disclosed 39 days later
      $1,001 - $15,000
      Since the trade+114.9% since the tradeEstimated entry price $94.00, close on Mon Aug 4, 2025Current price $202.04, close on Fri Oct 30
  3. Ro KhannaDemocrat · House · CA
    Filed May 12, 202510 matching trades
    • sold MKSI MKS
      Traded Apr 17, 2025 · disclosed 25 days later
      $1,001 - $15,000
      Since the trade+217.1% since the saleEstimated exit price $63.72, close on Thu Apr 17, 2025Current price $202.04, close on Fri Oct 30
    • sold MKSI MKS
      Traded Apr 16, 2025 · disclosed 26 days later
      $1,001 - $15,000
      Since the trade+217.2% since the saleEstimated exit price $63.69, close on Wed Apr 16, 2025Current price $202.04, close on Fri Oct 30
    • sold MKSI MKS
      Traded Apr 15, 2025 · disclosed 27 days later
      $1,001 - $15,000
      Since the trade+200.7% since the saleEstimated exit price $67.18, close on Tue Apr 15, 2025Current price $202.04, close on Fri Oct 30
    • sold MKSI MKS
      Traded Apr 15, 2025 · disclosed 27 days later
      $15,001 - $50,000
      Since the trade+200.7% since the saleEstimated exit price $67.18, close on Tue Apr 15, 2025Current price $202.04, close on Fri Oct 30
    • bought MKSI MKS
      Traded Apr 10, 2025 · disclosed 32 days later
      $1,001 - $15,000
      Since the trade+214.5% since the tradeEstimated entry price $64.24, close on Thu Apr 10, 2025Current price $202.04, close on Fri Oct 30
    • bought MKSI MKS
      Traded Apr 8, 2025 · disclosed 34 days later
      $1,001 - $15,000
      Since the trade+243.7% since the tradeEstimated entry price $58.78, close on Tue Apr 8, 2025Current price $202.04, close on Fri Oct 30
    Show the other 4 trades in this reportShow fewer
    • bought MKSI MKS
      Traded Apr 4, 2025 · disclosed 38 days later
      $1,001 - $15,000
      Since the trade+235.1% since the tradeEstimated entry price $60.29, close on Fri Apr 4, 2025Current price $202.04, close on Fri Oct 30
    • bought MKSI MKS
      Traded Apr 3, 2025 · disclosed 39 days later
      $15,001 - $50,000
      Since the trade+214.4% since the tradeEstimated entry price $64.27, close on Thu Apr 3, 2025Current price $202.04, close on Fri Oct 30
    • bought MKSI MKS
      Traded Apr 3, 2025 · disclosed 39 days later
      $1,001 - $15,000
      Since the trade+214.4% since the tradeEstimated entry price $64.27, close on Thu Apr 3, 2025Current price $202.04, close on Fri Oct 30
    • bought MKSI MKS
      Traded Apr 3, 2025 · disclosed 39 days later
      $15,001 - $50,000
      Since the trade+214.4% since the tradeEstimated entry price $64.27, close on Thu Apr 3, 2025Current price $202.04, close on Fri Oct 30

    Back to the top of this report

  4. Tommy TubervilleRepublican · Senate · AL
    Filed May 11, 2023one matching trade
    • sold in full MKSI MKS Joint
      Traded Apr 3, 2023 · disclosed 38 days later
      $1,001 - $15,000
      Since the trade+131.8% since the saleEstimated exit price $87.18, close on Mon Apr 3, 2023Current price $202.04, close on Fri Oct 30
  5. Tommy TubervilleRepublican · Senate · AL
    Filed Apr 8, 2022one matching trade
    • bought MKSI MKS Joint
      Traded Mar 30, 2022 · disclosed 9 days later
      $1,001 - $15,000
      Since the trade+29.1% since the tradeEstimated entry price $156.46, close on Wed Mar 30, 2022Current price $202.04, close on Fri Oct 30
  6. Ro KhannaDemocrat · House · CA
    Filed Jun 17, 2020one matching trade
    • sold MKSI MKS
      Traded May 20, 2020 · disclosed 28 days later
      $1,001 - $15,000
      Since the trade+97.4% since the saleEstimated exit price $102.33, close on Wed May 20, 2020Current price $202.04, close on Fri Oct 30
  7. Ro KhannaDemocrat · House · CA
    Filed Feb 10, 2020one matching trade
    • bought MKSI MKS
      Traded Jan 8, 2020 · disclosed 33 days later
      $1,001 - $15,000
      Since the trade+86.8% since the tradeEstimated entry price $108.16, close on Wed Jan 8, 2020Current price $202.04, close on Fri Oct 30
  8. Ro KhannaDemocrat · House · CA
    Filed Dec 10, 2018one matching trade
    • sold MKSI MKS
      Traded Nov 13, 2018 · disclosed 27 days later
      $1,001 - $15,000
      Since the trade+184.0% since the saleEstimated exit price $71.15, close on Tue Nov 13, 2018Current price $202.04, close on Fri Oct 30
  9. Ro KhannaDemocrat · House · CA
    Filed Nov 9, 20182 matching trades
    • bought MKSI MKS
      Traded Oct 25, 2018 · disclosed 15 days later
      $1,001 - $15,000
      Since the trade+177.0% since the tradeEstimated entry price $72.95, close on Thu Oct 25, 2018Current price $202.04, close on Fri Oct 30
    • bought MKSI MKS
      Traded Oct 2, 2018 · disclosed 38 days later
      $1,001 - $15,000
      Since the trade+151.0% since the tradeEstimated entry price $80.49, close on Tue Oct 2, 2018Current price $202.04, close on Fri Oct 30
  10. Ro KhannaDemocrat · House · CA
    Filed Sep 12, 2018one matching trade
    • sold MKSI MKS
      Traded Aug 21, 2018 · disclosed 22 days later
      $1,001 - $15,000
      Since the trade+122.6% since the saleEstimated exit price $90.75, close on Tue Aug 21, 2018Current price $202.04, close on Fri Oct 30
  11. Ro KhannaDemocrat · House · CA
    Filed Aug 10, 2018one matching trade
    • bought MKSI MKS
      Traded Jul 18, 2018 · disclosed 23 days later
      $1,001 - $15,000
      Since the trade+96.5% since the tradeEstimated entry price $102.80, close on Wed Jul 18, 2018Current price $202.04, close on Fri Oct 30

How to read the cards

  • One card: one report a member filed with the House Clerk or the Secretary of the Senate, newest filing first, its trades in date order. A trade the report lists twice, on the same day in the same range for two accounts, shows once here.
  • Size: the dollar range on the report, never an exact figure. A value that is not one of the STOCK Act's ranges prints as listed, and "Not captured" means the range is missing from our data.
  • Traded and disclosed: the trade date, then the days until the member disclosed it. The STOCK Act allows 45 days. The date filter counts from the filing date, not the trade date.
  • Since the trade: each priced line shows the estimated entry or exit price and the current price it is worked out from. Estimated prices are the stock's closing price on the trade date. A disclosure gives a value band, not the price paid. An option line reads n/a, because an option's premium is never disclosed; so does any other line that is not a stock, and a stock line whose closing prices we do not hold or whose prices failed our checks. Not investment advice.
  • Filed late: only on reports we checked against the House Clerk's copy, listed on the late filings page. A checked card links the original.
  • Long reports: 20 reports to a page. A report longer than 60 trades is shortened here, and so are the reports after a page passes 250 trades; the member's own page has every trade.