Welcome to our dedicated page for Masimo SEC filings (Ticker: MASI), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Masimo’s dual focus on noninvasive patient-monitoring sensors and high-fidelity consumer audio means its SEC disclosures span everything from hospital connectivity contracts to headphone royalty agreements. Digging through the 300-page 10-K to pinpoint segment revenue or R&D spend can feel impossible—and that’s before you chase down Form 4 trades by clinicians on the advisory board.
Our platform solves that problem. Stock Titan delivers AI-powered summaries that turn complicated language into clear insight, so understanding Masimo SEC documents with AI becomes routine. Need the latest Masimo quarterly earnings report 10-Q filing? It’s indexed alongside an AI synopsis of sensor-unit growth. Want alerts on Masimo insider trading Form 4 transactions? You’ll receive Masimo Form 4 insider transactions real-time, complete with context. Even the dense Masimo proxy statement executive compensation is broken down to show incentive metrics tied to patient-safety outcomes.
Here’s what investors routinely monitor:
- Masimo annual report 10-K simplified—segment margins, patent litigation, and hospital adoption data.
- Masimo 8-K material events explained—FDA clearances, supply-chain updates, or audio-brand launches.
- Masimo executive stock transactions Form 4—track insider sentiment before product releases.
- Masimo earnings report filing analysis—AI extracts cash-flow trends and sensor ASP changes.
With real-time EDGAR feeds, comprehensive coverage of every form, and expert commentary, Masimo SEC filings explained simply are finally within reach—saving hours and sharpening decisions.
Form 144 notice for MASIMO CORP (MASI) indicates a proposed sale of 50,000 common shares acquired and to be sold on 09/26/2025 following an employee stock option exercise. The broker listed is Charles Schwab & Co., Inc. with an aggregate market value of $7,093,910.00 and the issuer's shares outstanding reported as 54,324,812. The filing shows a prior sale by the same person on 09/23/2025 of 25,000 shares for gross proceeds of $3,518,983.00. The filer certifies they are unaware of undisclosed material adverse information.
Tripodi Blair, Chief Operating Officer, Consumer Division of Masimo Corporation (MASI), reported transactions on Form 4 dated 09/23/2025. On that date 15,000 restricted stock units (granted March 1, 2024) were treated as acquired/settled using a $142.13 per-share price, and 8,078 shares were withheld to satisfy tax withholding. After these transactions the filing shows beneficial ownership figures of 21,896 and 13,818 shares for the reported classes. The filing states the RSUs fully accelerated on 09/23/2025 because Mr. Tripodi resigned for "good reason" in connection with the Company’s sale of its consumer audio business.
Form 144 filed for MASIMO CORPORATION (MASI): An individual proposes selling 25,000 common shares acquired the same day via an employee stock option exercise. The filing lists an aggregate market value of $3,518,983.00 and identifies Charles Schwab & Co., Inc. as the broker. The planned sale date is 09/23/2025 on NASDAQ.
The filing states the payment was handled by the broker as a cashless exercise. The filer reports no securities sold in the past three months and affirms they are not aware of undisclosed material adverse information about the issuer.
Charles Dadswell, a director of Masimo Corporation (MASI), reported equity awards granted on August 18, 2025. The filing shows 2,273 restricted stock units (RSUs), each representing a contingent right to one share, and a non-qualified stock option covering 5,104 shares with an exercise price of $153.93. The RSUs vest ratably over four years with 25% vesting on each anniversary of the grant date. The option vests over five years with 20% vesting on each anniversary and is exercisable as it vests.
The Form 4 was filed individually and signed by an attorney-in-fact on behalf of the reporting person. All information in this summary is taken directly from the Form 4 content.
Politan Capital and affiliated entities disclosed a Form 4 reporting an internal distribution of Masimo Corporation (MASI) shares. On 08/29/2025 the Reporting Persons recorded a Code J(1) transaction showing 126,888 shares disposed at a reported price of $0, with an explanatory footnote stating those shares were distributed to a limited partner and were not sold in the open market. After the reported distribution, the Reporting Persons collectively beneficially owned 4,589,648 shares on an indirect basis. The filing is joint by Politan Capital Management LP, its GP entities, and Quentin Koffey, who is identified as a director and managing partner; signatures are dated 08/29/2025.
Joe Kiani reports beneficial ownership of 6,583,783 shares of Masimo Corporation common stock, representing 11.4% of the class using a base of 54,324,812 shares outstanding. The position combines shares held directly, shares held in trusts, retirement-plan shares and multiple equity awards and options.
A substantial portion of the reported holdings is the subject of active dispute: the filing includes 368,252 shares from exercised options the company declined to process, a claimed 2,700,000-share RSU award, 158,450 accelerated options, 198,225 performance RSUs (PSUs) and 85,255 vested options that the issuer contends were cancelled. The issuer has filed claims in the Court of Chancery of the State of Delaware challenging entitlement to some awards; the reporting person disputes the issuer’s position.
The reporting person discloses sole voting and dispositive power over 6,545,048 shares and shared voting and dispositive power over 38,735 shares, and states the reporting person’s spouse is entitled to receive dividends and sale proceeds for certain shares.
Masimo Corporation director William R. Jellison reported an open-market purchase of common stock on 08/11/2025. The Form 4 shows a purchase of 3,000 shares at a weighted average price of $145.98 per share; the reported purchase prices ranged from $145.84 to $146.00. After the transaction the reporting person beneficially owned 4,790 shares, held in a direct form of ownership.
The filing includes an explanation that the reported price is a weighted average of open market trades and the reporting person offers to provide full transaction details on request. The transaction is recorded with code P indicating a purchase; no derivative transactions are reported.
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