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Shuttingdown

MASIMO CORP

Electromedical & Electrotherapeutic Apparatus · IRVINE

No longer listed

High confidence (85%)

Updated Oct 13, 2026, 12:05 AM

What is happening

Derived by rule set status-rules-2026.09.7

The company deregistered its securities and stopped filing with the SEC. Companies do that when they are acquired, when they go private, and when they fail; the filing does not say which.

Latest material event: MASIMO CORP deregistered its securities (Jun 22, 2026)

Timeline

Every material event, newest first. History is never overwritten.

  1. MASIMO CORP deregistered its securities

    Jun 22, 2026

    Registration withdrawn

    • SEC EDGAR — “15-12G 1 tm2617395d2_1512g.htm 15-12G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number: 001-33642 Masimo Corporation (Exact name of registrant as specified in its charter) 52 Discovery Irvine, CA 92618 (949) 297-7000 (Address, including zip code, and telephone number, including area code, of registrant’s principal exe…”

  2. MASIMO CORP received a delisting notice from its exchange

    Jun 10, 2026

    Delisting notice received

    • SEC EDGAR — “Item 3.01 Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing. The information set forth in the Introductory Note and Items 2.01 and 3.03 of this Current Report on Form 8-K is incorporated by reference into this Item 3.01. On the day prior to the Closing Date, the Company notified The Nasdaq Stock Market LLC ( Nasdaq ) of the expected consummation of the Merger and requested that Nasdaq file with the SEC a Notification of Removal from Listing and/or Registration on Form 25 the next day with respect to delisting and deregistering the Shares under…”

  3. MASIMO CORP was delisted from its exchange

    Jun 10, 2026

    Delisting effective

    • SEC EDGAR — “X0203 0001354457 Nasdaq Stock Market LLC 0000937556 MASIMO CORP 001-33642 40 Parker Irvine CA CALIFORNIA 92618 +1 949 297-7000 Common Stock 17 CFR 240.12d2-2(a)(3) Tara Petta AVP 2026-06-10”

Company information

Founded
—
Employees (estimate)
—
Industry
Electromedical & Electrotherapeutic Apparatus
Subindustry
—
SEC CIK
0000937556
Website
—
LinkedIn
—
Headquarters
IRVINE
Also known as
—
Legal entities
MASIMO CORP

Sources

Every material source used to build this profile.

  • SEC Company Submissions (TIER 1 · UNVERIFIED)

    MASIMO CORP — Electromedical & Electrotherapeutic Apparatus (SIC 3845) — IRVINE, CA
    View source record

  • SEC EDGAR (TIER 1 · UNVERIFIED)

    15-12G 1 tm2617395d2_1512g.htm 15-12G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number: 001-33642 Masimo Corporation (Exact name of registrant as specified in its charter) 52 Discovery Irvine, CA 92618 (949) 297-7000 (Address, including zip code, and telephone number, including area code, of registrant’s principal exe…
    View source record

  • SEC EDGAR (TIER 1 · UNVERIFIED)

    X0203 0001354457 Nasdaq Stock Market LLC 0000937556 MASIMO CORP 001-33642 40 Parker Irvine CA CALIFORNIA 92618 +1 949 297-7000 Common Stock 17 CFR 240.12d2-2(a)(3) Tara Petta AVP 2026-06-10
    View source record

  • SEC EDGAR (TIER 1 · UNVERIFIED)

    Item 3.01 Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing. The information set forth in the Introductory Note and Items 2.01 and 3.03 of this Current Report on Form 8-K is incorporated by reference into this Item 3.01. On the day prior to the Closing Date, the Company notified The Nasdaq Stock Market LLC ( Nasdaq ) of the expected consummation of the Merger and requested that Nasdaq file with the SEC a Notification of Removal from Listing and/or Registration on Form 25 the next day with respect to delisting and deregistering the Shares under…
    View source record

Status history

Every derived status, with the rule that produced it.

  • DISTRESS_SIGNAL → NO_LONGER_LISTEDPUBLIC_LISTING_ENDED · Sep 18, 2026, 01:33 AM

    The company deregistered its securities and stopped filing with the SEC. Companies do that when they are acquired, when they go private, and when they fail; the filing does not say which.

  • DISTRESS_SIGNAL → DISTRESS_SIGNALLISTING_STANDARDS_WARNING · Sep 18, 2026, 01:13 AM

    An exchange warned the company it no longer meets the listing standards. Companies regain compliance often.

  • DISTRESS_SIGNAL → DISTRESS_SIGNALPUBLIC_LISTING_ENDED · Sep 15, 2026, 12:32 PM

    The company stopped being publicly listed. That happens to failing companies and to acquired ones alike.

  • DISTRESS_SIGNAL → DISTRESS_SIGNALPUBLIC_LISTING_ENDED · Sep 12, 2026, 12:04 AM

    The company stopped being publicly listed. That happens to failing companies and to acquired ones alike.

  • DISTRESS_SIGNAL → DISTRESS_SIGNALPUBLIC_LISTING_ENDED · Sep 11, 2026, 12:02 AM

    The company stopped being publicly listed. That happens to failing companies and to acquired ones alike.

  • DISTRESS_SIGNAL → DISTRESS_SIGNALPUBLIC_LISTING_ENDED · Sep 8, 2026, 03:12 AM

    The company stopped being publicly listed. That happens to failing companies and to acquired ones alike.

  • UNKNOWN → DISTRESS_SIGNALPUBLIC_LISTING_ENDED · Sep 8, 2026, 03:12 AM

    An exchange warned the company it no longer meets the listing standards. Companies regain compliance often.