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, Q2 2025
Institutional positions in Masimo Corp as of Jun 30, 2025. 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
- 379
- −11 vs. Q1 2025
- Shares held
- 57.5M
- +3.35M (+6.2%) vs. Q1 2025
- Total value
- $9.68B
- +$653.6M (+7.2%) vs. Q1 2025
- New holders
- 46
- 127 more added
- Sold out
- 57
- 136 more reduced
3 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2025: 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, Q2 2025
Shares, value and share of portfolio for each institution holding Masimo Corp; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| SummitTX Capital, L.P. | 0 | $0 | 0.00% | −3,773−100.0% | Sold out |
| Inceptionr LLC | 0 | $0 | 0.00% | −3,583−100.0% | Sold out |
| Lido Advisors, LLC | 0 | $0 | 0.00% | −3,127−100.0% | Sold out |
| Kestra Private Wealth Services, LLC | 0 | $0 | 0.00% | −2,892−100.0% | Sold out |
| United Services Automobile Association | 0 | $0 | 0.00% | −2,912−100.0% | Sold out |
| Mariner, LLC | 0 | $0 | 0.00% | −2,405−100.0% | Sold out |
| Allianz Asset Management GmbH | 0 | $0 | 0.00% | −1,912−100.0% | Sold out |
| SeaCrest Wealth Management, LLC | 0 | $0 | 0.00% | −1,840−100.0% | Sold out |
| Aigen Investment Management, LP | 0 | $0 | 0.00% | −1,627−100.0% | Sold out |
| Silver Oak Securities, Inc | 0 | $0 | 0.00% | −1,638−100.0% | Sold out |
| Cetera Investment Advisers | 0 | $0 | 0.00% | −1,600−100.0% | Sold out |
| PharVision Advisers, LLC | 0 | $0 | 0.00% | −1,410−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −1,320−100.0% | Sold out |
| Jain Global LLC | 0 | $0 | 0.00% | −1,274−100.0% | Sold out |
| Barrett & Company, Inc. | 0 | $0 | 0.00% | −567−100.0% | Sold out |
| Point72 Asia (Singapore) Pte. Ltd. | 0 | $0 | 0.00% | −469−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −449−100.0% | Sold out |
| Anderson Financial Strategies, LLC | 0 | $0 | 0.00% | −295−100.0% | Sold out |
| Washington Trust Co | 0 | $0 | 0.00% | −184−100.0% | Sold out |
| Twin Tree Management, LP | 0 | $0 | 0.00% | −175−100.0% | Sold out |
| Riverview Trust Co | 0 | $0 | 0.00% | −169−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −143−100.0% | Sold out |
| Sound Income Strategies, LLC | 0 | $0 | 0.00% | −85−100.0% | Sold out |
| TD Waterhouse Canada Inc. | 0 | $0 | 0.00% | −50−100.0% | Sold out |
| Meeder Asset Management Inc | 0 | $0 | 0.00% | −14−100.0% | Sold out |
| WFA Asset Management Corp | 0 | $0 | 0.00% | −12−100.0% | Sold out |
| Mather Group, LLC. | 0 | $0 | 0.00% | −6−100.0% | Sold out |
| Private Wealth Asset Management, LLC | 0 | $0 | 0.00% | −6−100.0% | Sold out |
| Quent Capital, LLC | 0 | $0 | 0.00% | −6−100.0% | Sold out |
| Global Financial Private Client, LLC | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| CoreCap Advisors, LLC | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| Greenline Partners, LLC | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| State of Wyoming | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Atlantic Trust, LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| American Capital Advisory, LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Avion Wealth | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| CAPROCK Group, Inc. | – | – | – | – | Not filed |
| Orion Portfolio Solutions, LLC | – | – | – | – | Not filed |
| Lindbrook Capital, LLC | – | – | – | – | Not filed |