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Tracking congressional stock trades from public STOCK Act Periodic Transaction Reports (PTRs) filed by members of the US House and Senate.

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© 2026 Congress Stock Tracker. Data from public STOCK Act filings.For informational purposes only. Not financial advice.
Stocks
Masimo Corporation

Masimo CorporationMASI

NASDAQHealthcareMedical Devices$175.49-0.01%

Price as of Mar 15, 5:28 PM EDT · delayed, not real-time

A medical technology company specializing in noninvasive patient monitoring solutions, Masimo develops and manufactures innovative devices for measuring vital signs. The firm is particularly known for its Signal Extraction Technology (SET) pulse oximetry, which is widely used in hospitals globally. Investors monitor Masimo for its growth in telehealth and hospital automation markets.

Market Cap: $9.4B52W Range: $125.94 – $175.90

Congressional Interest in Masimo Corporation (MASI)

7 members of Congress have disclosed 11 trades in Masimo Corporation (MASI), a Healthcare company. The buy/sell breakdown shows 3 purchases versus 8 sales, indicating net selling pressure from lawmakers. All data is sourced from STOCK Act periodic transaction reports filed with Congress.

Total Disclosures
11
Unique Politicians
7
Buys
3
Sells
8

Who in Congress Is Trading MASI?

DatePoliticianTypeAmountSecurity
2025-09-26Kevin Hernsell$15K – $50KStock
2024-08-05Rohit Khannasell$1K – $15KStock
2022-12-19Kevin Hernsell$50K – $100KStock
2022-10-05Thomas H Tubervillesell$1K – $15KStock
2022-03-30Thomas H Tubervillebuy$1K – $15KStock
2021-06-25Kevin Hernbuy$100K – $250KStock
2021-06-25Kevin Hernbuy$15K – $50KStock
2015-07-09KENNY MARCHANTsell$1K – $15KStock
2015-02-20JAMES B. RENACCIsell$15K – $50KStock
2015-02-13Thomas R Tillissell$1K – $15KStock
2009-07-05Lamar Smithsell$1K – $15KStock
Kevin Hernsell
2025-09-26$15K – $50K
Stock
Rohit Khannasell
2024-08-05$1K – $15K
Stock
Kevin Hernsell
2022-12-19$50K – $100K
Stock
Thomas H Tubervillesell
2022-10-05$1K – $15K
Stock
Thomas H Tubervillebuy
2022-03-30$1K – $15K
Stock
Kevin Hernbuy
2021-06-25$100K – $250K
Stock
Kevin Hernbuy
2021-06-25$15K – $50K
Stock
KENNY MARCHANTsell
2015-07-09$1K – $15K
Stock
JAMES B. RENACCIsell
2015-02-20$15K – $50K
Stock
Thomas R Tillissell
2015-02-13$1K – $15K
Stock
Lamar Smithsell
2009-07-05$1K – $15K
Stock

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