MASIMO CORP
CIK 937556 · View on SEC EDGAR ↗
Insider
First SEC filing: Aug. 8, 2023 · Latest: Aug. 8, 2023
On this page
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 10 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
10 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| July 1, 2025 | MASI | S | 289,779 | $2.25 | $652,003 | 0 Direct | -100.00% | Disposed | |
| July 1, 2025 | MASI | S | 531,548 | $2.25 | $1,195,983 | 0 Direct | -100.00% | Disposed |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| July 1, 2025 | MASI | Pre-Funded Warrant, Common Stock (Right to Buy) | Common Stock (289,779) | $0.00 | — | 289,779 | Disposed |
| Aug. 11, 2023 | MASI | Pre-Funded Warrant, Common Stock (Right to Buy) | Common Stock (289,779) | $0.00 | — | 289,779 | Acquired |
| Aug. 11, 2023 | MASI | Pre-Funded Warrant, Series A Preferred Stock (Right to Buy) | Series A Preferred Stock | $0.00 | — | 144,890 | Disposed |
| Aug. 11, 2023 | MASI | Series A Preferred Stock | Common Stock | — | — | 265,774 | Disposed |
| Aug. 10, 2023 | MASI | Pre-Funded Warrant, Common Stock (Right to Buy) | Common Stock (289,779) | $0.00 | — | 289,779 | Acquired |
| Aug. 10, 2023 | MASI | Pre-Funded Warrant, Series A Preferred Stock (Right to Buy) | Series A Preferred Stock | $0.00 | — | 144,890 | Disposed |
| Aug. 10, 2023 | MASI | Series A Preferred Stock | Common Stock | — | — | 265,774 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 2 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Aug. 8, 2023 | MASI | Series A Preferred Stock→ Common Stock | — | Direct |
| Aug. 8, 2023 | MASI | Pre-Funded Warrant, Series A Preferred Stock (Right to Buy)→ Series A Preferred Stock [F1,F2] | — | Direct |