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 2023
Institutional positions in Masimo Corp as of Sep 30, 2023. 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
- 357
- −57 vs. Q2 2023
- Shares held
- 47.7M
- +1.72M (+3.7%) vs. Q2 2023
- Total value
- $4.18B
- −$3.38B (−44.7%) vs. Q2 2023
- New holders
- 59
- 81 more added
- Sold out
- 116
- 158 more reduced
1 institution that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2023: 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 2023
Shares, value and share of portfolio for each institution holding Masimo Corp; share changes are against Q2 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Arkadios Wealth Advisors | 0 | $0 | 0.00% | −3,984−100.0% | Sold out |
| Red Spruce Capital, LLC | 0 | $0 | 0.00% | −3,558−100.0% | Sold out |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 0 | $0 | 0.00% | −3,500−100.0% | Sold out |
| Harbor Capital Advisors, Inc. | 0 | $0 | 0.00% | −3,466−100.0% | Sold out |
| Terry L. Blaker | 0 | $0 | 0.00% | −3,459−100.0% | Sold out |
| Nordea Investment Management AB | 0 | $0 | 0.00% | −3,397−100.0% | Sold out |
| PAX Financial Group, LLC | 0 | $0 | 0.00% | −3,427−100.0% | Sold out |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 0 | $0 | 0.00% | −3,101−100.0% | Sold out |
| Qtron Investments LLC | 0 | $0 | 0.00% | −3,059−100.0% | Sold out |
| Daiwa Securities Group Inc. | 0 | $0 | 0.00% | −2,923−100.0% | Sold out |
| Endurant Capital Management LP | 0 | $0 | 0.00% | −2,850−100.0% | Sold out |
| Wexford Capital LP | 0 | $0 | 0.00% | −2,820−100.0% | Sold out |
| Prudential PLC | 0 | $0 | 0.00% | −2,783−100.0% | Sold out |
| Mitsubishi UFJ Asset Management (UK) Ltd. | 0 | $0 | 0.00% | −2,600−100.0% | Sold out |
| Caxton Associates LP | 0 | $0 | 0.00% | −2,568−100.0% | Sold out |
| Independent Advisor Alliance | 0 | $0 | 0.00% | −2,457−100.0% | Sold out |
| Blair William & Co | 0 | $0 | 0.00% | −2,419−100.0% | Sold out |
| Coldstream Capital Management Inc | 0 | $0 | 0.00% | −2,347−100.0% | Sold out |
| Bank of Nova Scotia | 0 | $0 | 0.00% | −2,188−100.0% | Sold out |
| BancorpSouth Bank | 0 | $0 | 0.00% | −2,172−100.0% | Sold out |
| Algert Global LLC | 0 | $0 | 0.00% | −2,168−100.0% | Sold out |
| AE Wealth Management LLC | 0 | $0 | 0.00% | −2,167−100.0% | Sold out |
| Cresset Asset Management, LLC | 0 | $0 | 0.00% | −2,109−100.0% | Sold out |
| Cambridge Investment Research Advisors, Inc. | 0 | $0 | 0.00% | −2,080−100.0% | Sold out |
| Millrace Asset Group, Inc. | 0 | $0 | 0.00% | −1,986−100.0% | Sold out |
| Yorktown Management & Research Co Inc | 0 | $0 | 0.00% | −1,950−100.0% | Sold out |
| Aviva PLC | 0 | $0 | 0.00% | −1,851−100.0% | Sold out |
| Ossiam | 0 | $0 | 0.00% | −1,851−100.0% | Sold out |
| CWM Advisors, LLC | 0 | $0 | 0.00% | −1,806−100.0% | Sold out |
| Advisor Partners II, LLC | 0 | $0 | 0.00% | −1,797−100.0% | Sold out |
| Janney Capital Management LLC | 0 | $0 | 0.00% | −1,769−100.0% | Sold out |
| Commonwealth Equity Services, LLC | 0 | $0 | 0.00% | −1,760−100.0% | Sold out |
| Twin Tree Management, LP | 0 | $0 | 0.00% | −1,721−100.0% | Sold out |
| Toroso Investments, LLC | 0 | $0 | 0.00% | −1,706−100.0% | Sold out |
| Captrust Financial Advisors | 0 | $0 | 0.00% | −1,654−100.0% | Sold out |
| M&T Bank Corp | 0 | $0 | 0.00% | −1,636−100.0% | Sold out |
| Pitcairn Co | 0 | $0 | 0.00% | −1,603−100.0% | Sold out |
| Mission Wealth Management, LP | 0 | $0 | 0.00% | −1,600−100.0% | Sold out |
| Winton Group Ltd | 0 | $0 | 0.00% | −1,509−100.0% | Sold out |
| Profund Advisors LLC | 0 | $0 | 0.00% | −1,502−100.0% | Sold out |
| Boulder Hill Capital Management LP | 0 | $0 | 0.00% | −1,500−100.0% | Sold out |
| Berkshire Asset Management LLC | 0 | $0 | 0.00% | −1,450−100.0% | Sold out |
| Tokio Marine Asset Management Co Ltd | 0 | $0 | 0.00% | −1,395−100.0% | Sold out |
| CIBC Asset Management Inc | 0 | $0 | 0.00% | −1,383−100.0% | Sold out |
| Quantinno Capital Management LP | 0 | $0 | 0.00% | −1,382−100.0% | Sold out |
| Capstone Investment Advisors, LLC | 0 | $0 | 0.00% | −1,359−100.0% | Sold out |
| Accredited Investors Inc. | 0 | $0 | 0.00% | −1,324−100.0% | Sold out |
| Banque Cantonale Vaudoise | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| Ostrum Asset Management | 0 | $0 | 0.00% | −603−100.0% | Sold out |
| UniSuper Management Pty Ltd | 0 | $0 | 0.00% | −400−100.0% | Sold out |
| Federation des caisses Desjardins du Quebec | 0 | $0 | 0.00% | −380−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −317−100.0% | Sold out |
| Fred Alger Management, LLC | 0 | $0 | 0.00% | −266−100.0% | Sold out |
| Achmea Investment Management B.V. | 0 | $0 | 0.00% | −242−100.0% | Sold out |
| Riverview Trust Co | 0 | $0 | 0.00% | −123−100.0% | Sold out |
| Natixis | 0 | $0 | 0.00% | −120−100.0% | Sold out |
| Raleigh Capital Management Inc. | 0 | $0 | 0.00% | −103−100.0% | Sold out |
| Headlands Technologies LLC | 0 | $0 | 0.00% | −84−100.0% | Sold out |
| Private Trust Co NA | 0 | $0 | 0.00% | −74−100.0% | Sold out |
| Safeguard Financial, LLC | 0 | $0 | 0.00% | −50−100.0% | Sold out |
| Baker Avenue Asset Management, LP | 0 | $0 | 0.00% | −41−100.0% | Sold out |
| Capital Advisors, Ltd. LLC | 0 | $0 | 0.00% | −36−100.0% | Sold out |
| West Tower Group, LLC | 0 | $0 | 0.00% | −25−100.0% | Sold out |
| Sutton Wealth Advisors Inc. | 0 | $0 | 0.00% | −11−100.0% | Sold out |
| Prestige Wealth Management Group LLC | 0 | $0 | 0.00% | −9−100.0% | Sold out |
| Moisand Fitzgerald Tamayo, LLC | 0 | $0 | 0.00% | −8−100.0% | Sold out |
| Bollard Group LLC | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Disciplined Investments, LLC | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Fairfield, Bush & Co. | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Fiduciary Alliance LLC | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Sofos Investments, Inc. | 0 | $0 | 0.00% | −165−100.0% | Sold out |
| VisionPoint Advisory Group, LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Financial Management Professionals, Inc. | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| Pictet Asset Management SA | – | – | – | – | Not filed |