Masimo Corp
MASIDelisted Jun 10, 2026- Industry
- Electromedical & Electrotherapeutic Apparatus
- SEC CIK
- 0000937556
Masimo Corp was delisted on Jun 10, 2026; its insiders filed their last Form 4 on Jun 12, 2026; 451 institutions reported holding it in 13F filings for Q1 2026, worth $9.69B in total; Soros Fund Management was the only superinvestor holding it.
13F holders, Q4 2022
Institutional positions in Masimo Corp as of Dec 31, 2022. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 405
- −8 vs. Q3 2022
- Shares held
- 44.4M
- −1.85M (−4.0%) vs. Q3 2022
- Total value
- $6.58B
- +$40.0M (+0.6%) vs. Q3 2022
- New holders
- 53
- 116 more added
- Sold out
- 61
- 172 more reduced
5 institutions that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2022: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting MASI on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 2 | $16.2K |
| Q1 2026 | 451 | $9.69B |
| Q4 2025 | 392 | $7.20B |
| Q3 2025 | 358 | $8.29B |
| Q2 2025 | 379 | $9.68B |
| Q1 2025 | 393 | $9.02B |
| Q4 2024 | 366 | $8.50B |
| Q3 2024 | 362 | $6.72B |
| Q2 2024 | 352 | $6.24B |
| Q1 2024 | 339 | $7.59B |
| Q4 2023 | 342 | $5.91B |
| Q3 2023 | 357 | $4.18B |
| Q2 2023 | 415 | $7.56B |
| Q1 2023 | 428 | $8.30B |
| Q4 2022 | 405 | $6.58B |
| Q3 2022 | 418 | $6.54B |
| Q2 2022 | 417 | $5.81B |
| Q1 2022 | 457 | $6.61B |
| Q4 2021 | 520 | $13.6B |
| Q3 2021 | 475 | $12.5B |
| Q2 2021 | 459 | $11.1B |
| Q1 2021 | 481 | $10.3B |
Institutions, Q4 2022
Shares, value and share of portfolio for each institution holding Masimo Corp; share changes are against Q3 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| State Street Corp | 1,698,759 | $251.3M | 0.01% | +41,611+2.5% | Added |
| Politan Capital Management LP | 4,739,963 | $701.3M | 39.47% | +91,094+2.0% | Added |
| Vanguard Group Inc | 4,855,501 | $718.4M | 0.02% | +227,439+4.9% | Added |
| FMR LLC | 5,456,344 | $807.3M | 0.08% | +1,599,054+41.5% | Added |
| BlackRock Inc. | 5,956,948 | $881.3M | 0.03% | +542,124+10.0% | Added |
| Champlain Investment Partners, LLC | 0 | $0 | 0.00% | −934,762−100.0% | Sold out |
| National Bank of Canada | 0 | $0 | 0.00% | −203,400−100.0% | Sold out |
| Scout Investments, Inc. | 0 | $0 | 0.00% | −76,741−100.0% | Sold out |
| 2Xideas AG | 0 | $0 | 0.00% | −68,123−100.0% | Sold out |
| Handelsinvest Investeringsforvaltning | 0 | $0 | 0.00% | −51,100−100.0% | Sold out |
| Point72 Hong Kong Ltd | 0 | $0 | 0.00% | −40,028−100.0% | Sold out |
| Pertento Partners LLP | 0 | $0 | 0.00% | −32,840−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −28,399−100.0% | Sold out |
| DnB Asset Management AS | 0 | $0 | 0.00% | −27,197−100.0% | Sold out |
| Pura Vida Investments, LLC | 0 | $0 | 0.00% | −25,800−100.0% | Sold out |
| Allianz Asset Management GmbH | 0 | $0 | 0.00% | −23,855−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −12,700−100.0% | Sold out |
| Ergoteles LLC | 0 | $0 | 0.00% | −10,265−100.0% | Sold out |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 0 | $0 | 0.00% | −10,915−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −9,013−100.0% | Sold out |
| Versor Investments LP | 0 | $0 | 0.00% | −8,600−100.0% | Sold out |
| Bokf, NA | 0 | $0 | 0.00% | −8,012−100.0% | Sold out |
| Alberta Investment Management Corp | 0 | $0 | 0.00% | −7,741−100.0% | Sold out |
| AlphaCrest Capital Management LLC | 0 | $0 | 0.00% | −7,258−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −7,025−100.0% | Sold out |
| Fiera Capital Corp | 0 | $0 | 0.00% | −6,661−100.0% | Sold out |
| Private Advisor Group, LLC | 0 | $0 | 0.00% | −6,622−100.0% | Sold out |
| Marshall Financial Group LLC | 0 | $0 | 0.00% | −6,362−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −5,561−100.0% | Sold out |
| Blue Whale Capital LLP | 0 | $0 | 0.00% | −5,200−100.0% | Sold out |
| Robeco Institutional Asset Management B.V. | 0 | $0 | 0.00% | −5,203−100.0% | Sold out |
| Quantamental Technologies LLC | 0 | $0 | 0.00% | −4,478−100.0% | Sold out |
| AQR Capital Management LLC | 0 | $0 | 0.00% | −4,009−100.0% | Sold out |
| Advisors Asset Management, Inc. | 0 | $0 | 0.00% | −3,404−100.0% | Sold out |
| Qtron Investments LLC | 0 | $0 | 0.00% | −3,250−100.0% | Sold out |
| DuPont Capital Management Corp | 0 | $0 | 0.00% | −3,045−100.0% | Sold out |
| Cetera Investment Advisers | 0 | $0 | 0.00% | −2,986−100.0% | Sold out |
| Quantitative Investment Management, LLC | 0 | $0 | 0.00% | −2,916−100.0% | Sold out |
| Krilogy Financial LLC | 0 | $0 | 0.00% | −2,698−100.0% | Sold out |
| Echo Street Capital Management LLC | 0 | $0 | 0.00% | −2,596−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −2,169−100.0% | Sold out |
| Aigen Investment Management, LP | 0 | $0 | 0.00% | −2,029−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −1,916−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −1,900−100.0% | Sold out |
| Independent Advisor Alliance | 0 | $0 | 0.00% | −1,736−100.0% | Sold out |
| Kestra Private Wealth Services, LLC | 0 | $0 | 0.00% | −1,629−100.0% | Sold out |
| Berkshire Asset Management LLC | 0 | $0 | 0.00% | −1,450−100.0% | Sold out |
| Financial Advocates Investment Management | 0 | $0 | 0.00% | −3,912−100.0% | Sold out |
| C M Bidwell & Associates Ltd | 0 | $0 | 0.00% | −1,367−100.0% | Sold out |
| Exos TFP Holdings LLC | 0 | $0 | 0.00% | −1,112−100.0% | Sold out |
| GHP Investment Advisors, Inc. | 0 | $0 | 0.00% | −379−100.0% | Sold out |
| Meeder Asset Management Inc | 0 | $0 | 0.00% | −228−100.0% | Sold out |
| Central Trust Co | 0 | $0 | 0.00% | −200−100.0% | Sold out |
| Virtus Investment Advisers, Inc. | 0 | $0 | 0.00% | −111−100.0% | Sold out |
| Achmea Investment Management B.V. | 0 | $0 | 0.00% | −94−100.0% | Sold out |
| Asset Dedication, LLC | 0 | $0 | 0.00% | −68−100.0% | Sold out |
| Toth Financial Advisory Corp | 0 | $0 | 0.00% | −50−100.0% | Sold out |
| Almanack Investment Partners, LLC. | 0 | $0 | 0.00% | −52−100.0% | Sold out |
| West Branch Capital LLC | 0 | $0 | 0.00% | −33−100.0% | Sold out |
| Delos Wealth Advisors, LLC | 0 | $0 | 0.00% | −26−100.0% | Sold out |
| CVA Family Office, LLC | 0 | $0 | 0.00% | −20−100.0% | Sold out |
| Bellwether Advisors, LLC | 0 | $0 | 0.00% | −21−100.0% | Sold out |
| Longfellow Investment Management Co LLC | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| Standard Family Office LLC | 0 | $0 | 0.00% | −7−100.0% | Sold out |
| Private Trust Co NA | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| IMA Wealth, Inc. | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Eaton Vance Management | – | – | – | – | Not filed |
| American Portfolios Advisors | – | – | – | – | Not filed |
| Jefferies Group LLC | – | – | – | – | Not filed |
| Bluestein R H & Co | – | – | – | – | Not filed |
| Wipfli Financial Advisors LLC, | – | – | – | – | Not filed |