Congress WatchMASI stock trades by members of Congress
Masimo Corporation - Common Stock: 3 members of Congress disclosed 7 transactions between 2015-02-26 and 2025-10-16, 3 purchases and 4 sales.
7transactions
3purchases
4sales
3politicians
Activity by year
Transactions by the year the report was filed.
Congress buying and selling by month
Purchases and sales of MASI reported by members of the House and Senate.
Green months had more purchases, red months more sales, teal an even split; darker means more trades. Months are by filing date. Senate filings after August 2026 and scanned House filings are not fully covered, so early years can look quieter than they were.
Who traded MASI
| Politician | Trades | Buys | Sales | Last filing |
|---|---|---|---|---|
| Kevin Hern | 4 | 2 | 2 | 2025-10-16 |
| Thomas H Tuberville | 2 | 1 | 1 | 2022-11-10 |
| Thomas R Tillis | 1 | 0 | 1 | 2015-02-26 |
Disclosed transactions
Download all transactions as CSV
| Filed | Traded | Politician | Type | Amount | Filing |
|---|---|---|---|---|---|
| 2025-10-16 | 2025-09-26 | Kevin Hern | Sale | $15,001 - $50,000 | Source |
| 2023-01-13 | 2022-12-19 | Kevin Hern | Sale | $50,001 - $100,000 | Source |
| 2022-11-10 | 2022-10-05 | Thomas H Tuberville | Sale | $1,001 - $15,000 | Source |
| 2022-04-08 | 2022-03-30 | Thomas H Tuberville | Buy | $1,001 - $15,000 | Source |
| 2021-07-14 | 2021-06-25 | Kevin Hern | Buy | $15,001 - e $50,000 | Source |
| 2021-07-14 | 2021-06-25 | Kevin Hern | Buy | $100,001 - c $250,000 | Source |
| 2015-02-26 | 2015-02-13 | Thomas R Tillis | Sale | $1,001 - $15,000 | Source |
Stocks traded by the same politicians
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- AMT American Tower Corporation, 2 shared
- ASML ASML Holding N.V. - New York Registry Shares, 2 shared
- BDX Becton, Dickinson and Company Common Stock, 2 shared
- BIO Bio-Rad Laboratories, Inc., 2 shared
- CARR Carrier Global Corporation Common Stock, 2 shared
- CDNS Cadence Design Systems, Inc. - Common Stock, 2 shared
- CL Colgate-Palmolive Company Common Stock, 2 shared
Common questions
- Are members of Congress buying or selling MASI?
- 3 members of Congress disclosed 7 transactions in Masimo Corporation - Common Stock (MASI) between 2015-02-26 and 2025-10-16: 3 purchases and 4 sales.
- How active was Congress in MASI recently?
- In 2025 filings, 1 transaction in MASI were disclosed: 0 purchases and 1 sales.
- Which members of Congress trade MASI?
- The most active in MASI are Kevin Hern (4), Thomas H Tuberville (2) and Thomas R Tillis (1), by number of disclosed transactions. 3 members in all have traded it.