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, Q3 2022
Institutional positions in Masimo Corp as of Sep 30, 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
- 418
- +9 vs. Q2 2022
- Shares held
- 46.3M
- +2.09M (+4.7%) vs. Q2 2022
- Total value
- $6.54B
- +$745.4M (+12.9%) vs. Q2 2022
- New holders
- 60
- 109 more added
- Sold out
- 51
- 183 more reduced
8 institutions that held it in Q2 2022 haven't filed for Q3 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2022
Shares, value and share of portfolio for each institution holding Masimo Corp; share changes are against Q2 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Neuberger Berman Group LLC | 502,190 | $71.4M | 0.07% | −30,639−5.8% | Reduced |
| Bank of New York Mellon Corp | 542,369 | $76.6M | 0.02% | −168,146−23.7% | Reduced |
| Millennium Management LLC | 548,626 | $77.4M | 0.10% | −173,533−24.0% | Reduced |
| Martin Currie Ltd | 572,333 | $80.8M | 3.44% | −20,129−3.4% | Reduced |
| Farallon Capital Management, L.L.C. | 577,000 | $81.4M | 0.50% | +382,000+195.9% | Added |
| Citigroup Inc | 623,851 | $88.1M | 0.12% | +68,808+12.4% | Added |
| Geode Capital Management, LLC | 671,529 | $94.7M | 0.01% | −23,481−3.4% | Reduced |
| Morgan Stanley | 695,842 | $98.2M | 0.01% | −680,782−49.5% | Reduced |
| Goldman Sachs Group Inc | 728,634 | $102.9M | 0.03% | −128,030−14.9% | Reduced |
| Fundsmith LLPSuperinvestorFundsmith | 765,161 | $108.0M | 0.51% | +8,848+1.2% | Added |
| Champlain Investment Partners, LLC | 934,762 | $132.0M | 0.90% | −16,980−1.8% | Reduced |
| Liontrust Investment Partners LLP | 1,142,100 | $161.2M | 2.64% | −57,200−4.8% | Reduced |
| RTW Investments, LP | 1,439,993 | $203.3M | 4.69% | +89,000+6.6% | Added |
| State Street Corp | 1,657,148 | $233.9M | 0.01% | −33,366−2.0% | Reduced |
| FMR LLC | 3,857,290 | $544.5M | 0.06% | +1,752,351+83.2% | Added |
| Vanguard Group Inc | 4,628,062 | $653.3M | 0.02% | −290,830−5.9% | Reduced |
| Politan Capital Management LP | 4,648,869 | $656.2M | 39.51% | +4,648,869 | New |
| BlackRock Inc. | 5,414,824 | $764.4M | 0.03% | −360,404−6.2% | Reduced |
| Nomura Holdings Inc | 0 | $0 | 0.00% | −1,786,307−100.0% | Sold out |
| Natixis | 0 | $0 | 0.00% | −156,119−100.0% | Sold out |
| Voloridge Investment Management, LLC | 0 | $0 | 0.00% | −91,890−100.0% | Sold out |
| Capital Fund Management S.A. | 0 | $0 | 0.00% | −42,755−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −39,812−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −36,586−100.0% | Sold out |
| Tobam | 0 | $0 | 0.00% | −26,013−100.0% | Sold out |
| Man Group plc | 0 | $0 | 0.00% | – | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −16,474−100.0% | Sold out |
| CWM Advisors, LLC | 0 | $0 | 0.00% | −8,063−100.0% | Sold out |
| Capitolis Advisors LLC | 0 | $0 | 0.00% | −7,761−100.0% | Sold out |
| Connor, Clark & Lunn Investment Management Ltd. | 0 | $0 | 0.00% | −7,330−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −6,500−100.0% | Sold out |
| Shay Capital LLC | 0 | $0 | 0.00% | −6,500−100.0% | Sold out |
| Janus Henderson Group PLC | 0 | $0 | 0.00% | −6,429−100.0% | Sold out |
| Eversept Partners, LP | 0 | $0 | 0.00% | −5,984−100.0% | Sold out |
| Duality Advisers, LP | 0 | $0 | 0.00% | −5,961−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −5,104−100.0% | Sold out |
| Wellington Management Group LLP | 0 | $0 | 0.00% | −5,065−100.0% | Sold out |
| Cantor Fitzgerald, L. P. | 0 | $0 | 0.00% | −4,030−100.0% | Sold out |
| USS Investment Management Ltd | 0 | $0 | 0.00% | −3,881−100.0% | Sold out |
| Maryland State Retirement & Pension System | 0 | $0 | 0.00% | −3,736−100.0% | Sold out |
| Pendal Group Limited | 0 | $0 | 0.00% | −3,306−100.0% | Sold out |
| NinePointTwo Capital | 0 | $0 | 0.00% | −3,229−100.0% | Sold out |
| FORA Capital, LLC | 0 | $0 | 0.00% | −2,641−100.0% | Sold out |
| Pearl River Capital, LLC | 0 | $0 | 0.00% | −2,100−100.0% | Sold out |
| Caxton Associates LP | 0 | $0 | 0.00% | −2,054−100.0% | Sold out |
| Worldquant Millennium Advisors LLC | 0 | $0 | 0.00% | −1,782−100.0% | Sold out |
| Bayesian Capital Management, LP | 0 | $0 | 0.00% | −1,764−100.0% | Sold out |
| Fox Run Management, L.L.C. | 0 | $0 | 0.00% | −1,650−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −1,529−100.0% | Sold out |
| SeaCrest Wealth Management, LLC | 0 | $0 | 0.00% | −890−100.0% | Sold out |
| Bank Julius Baer & Co. Ltd, Zurich | 0 | $0 | 0.00% | −559−100.0% | Sold out |
| EverSource Wealth Advisors, LLC | 0 | $0 | 0.00% | −467−100.0% | Sold out |
| Atwood & Palmer Inc | 0 | $0 | 0.00% | −379−100.0% | Sold out |
| AIA Group Ltd | 0 | $0 | 0.00% | −209−100.0% | Sold out |
| Cutler Group LP | 0 | $0 | 0.00% | −150−100.0% | Sold out |
| Venture Visionary Partners LLC | 0 | $0 | 0.00% | −46−100.0% | Sold out |
| Newbridge Financial Services Group, Inc. | 0 | $0 | 0.00% | −37−100.0% | Sold out |
| Heritage Financial Services, LLC | 0 | $0 | 0.00% | −38−100.0% | Sold out |
| CoreCap Advisors, LLC | 0 | $0 | 0.00% | −31−100.0% | Sold out |
| O'Dell Group, LLC | 0 | $0 | 0.00% | −20−100.0% | Sold out |
| Geneos Wealth Management Inc. | 0 | $0 | 0.00% | −25−100.0% | Sold out |
| Concord Wealth Partners | 0 | $0 | 0.00% | −12−100.0% | Sold out |
| Dark Forest Capital Management LP | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Fairfield, Bush & Co. | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Lee Financial Co | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Macroview Investment Management LLC | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Private Ocean, LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Steward Financial Group LLC | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Morton Brown Family Wealth, LLC | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| Brewin Dolphin Wealth Management Ltd | – | – | – | – | Not filed |
| Sciencast Management LP | – | – | – | – | Not filed |
| Advisor Partners LLC | – | – | – | – | Not filed |
| Coldstream Capital Management Inc | – | – | – | – | Not filed |
| Altium Wealth Management LLC | – | – | – | – | Not filed |
| Brewin Dolphin Ltd | – | – | – | – | Not filed |
| Fieldpoint Private Securities, LLC | – | – | – | – | Not filed |
| Exane Derivatives | – | – | – | – | Not filed |