Michelle Brennan insider trades: Masimo (MASI) stock purchases
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Michelle reports to the SEC
Open-market buys and sales
5 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Aug 13, 2025 | MASI | ↑ Buy | 200 | $152.80 | $31K | Direct | Aug 14, 2025 (1d) |
| Nov 15, 2022 | CAH | ↑ Buy | 400 | $75.51 | $30K | Direct | Nov 16, 2022 (1d) |
| Nov 10, 2022 | CAH | ↑ Buy | 150 | $79.74 | $12K | Direct | Nov 10, 2022 (0d) |
| Mar 16, 2022 | COUP | ↑ Buy | 375 | $78.65 | $29K | By Trust | Mar 18, 2022 (2d) |
| Dec 23, 2020 | COUP | ↑ Buy | 100 | $358.57 | $36K | Direct | Dec 23, 2020 (0d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other MASI insiders
Open-market trades in the last 12 months
About Michelle Brennan's insider trades
Michelle Brennan is a director at Masimo (MASI). Since Dec 23, 2020, Michelle has reported 5 open-market purchases worth $138K and no sales on SEC Form 4. There have been no open-market trades in the last 12 months.
Their filings also include grants and awards (15 filings), option exercises (6 filings), shares returned to the company (2 filings), shares withheld for taxes (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every MASI insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.