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, Q1 2024
Institutional positions in Masimo Corp as of Mar 31, 2024. 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
- 339
- 0 vs. Q4 2023
- Shares held
- 51.7M
- +1.31M (+2.6%) vs. Q4 2023
- Total value
- $7.59B
- +$1.69B (+28.6%) vs. Q4 2023
- New holders
- 50
- 96 more added
- Sold out
- 50
- 127 more reduced
3 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2024
Shares, value and share of portfolio for each institution holding Masimo Corp; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Clean Yield Group | 49 | $7.20K | 0.00% | 00.0% | Unchanged |
| Larson Financial Group LLC | 46 | $6.75K | 0.00% | +45+4,500.0% | Added |
| CIBC Private Wealth Group, LLC | 40 | $5.79K | 0.00% | +40 | New |
| ADAR1 Capital Management, LLC | 38 | $5.58K | 0.00% | −20−34.5% | Reduced |
| Bear Mountain Capital, Inc. | 40 | $5.46K | 0.00% | 00.0% | Unchanged |
| GPS Wealth Strategies Group, LLC | 37 | $5.43K | 0.00% | +37 | New |
| Principal Securities, Inc. | 35 | $5.14K | 0.00% | +35 | New |
| Nisa Investment Advisors, LLC | 29 | $4.26K | 0.00% | −3−9.4% | Reduced |
| State of Wyoming | 28 | $4.11K | 0.00% | +7+33.3% | Added |
| Hallmark Capital Management Inc | 26 | $3.82K | 0.00% | 00.0% | Unchanged |
| Global Retirement Partners, LLC | 24 | $3.52K | 0.00% | 00.0% | Unchanged |
| Bell Investment Advisors, Inc | 23 | $3.38K | 0.00% | 00.0% | Unchanged |
| Sunbelt Securities, Inc. | 20 | $2.94K | 0.00% | −34−63.0% | Reduced |
| WealthCollab, LLC | 20 | $2.94K | 0.00% | 00.0% | Unchanged |
| Sachetta, LLC | 23 | $2.70K | 0.00% | 00.0% | Unchanged |
| Parkside Financial Bank & Trust | 18 | $2.64K | 0.00% | 00.0% | Unchanged |
| Farmers & Merchants Investments Inc | 18 | $2.64K | 0.00% | 00.0% | Unchanged |
| JFS Wealth Advisors, LLC | 17 | $2.50K | 0.00% | 00.0% | Unchanged |
| VisionPoint Advisory Group, LLC | 17 | $2.50K | 0.00% | +17 | New |
| Quent Capital, LLC | 16 | $2.35K | 0.00% | 00.0% | Unchanged |
| Smartleaf Asset Management LLC | 16 | $2.31K | 0.00% | +15+1,500.0% | Added |
| Private Wealth Management Group, LLC | 15 | $2.20K | 0.00% | 00.0% | Unchanged |
| Versant Capital Management, Inc | 15 | $2.20K | 0.00% | 00.0% | Unchanged |
| Kiely Wealth Advisory Group, Inc. | 15 | $2.06K | 0.00% | 00.0% | Unchanged |
| FinTrust Capital Advisors, LLC | 13 | $1.91K | 0.00% | 00.0% | Unchanged |
| SJS Investment Consulting Inc. | 13 | $1.91K | 0.00% | +8+160.0% | Added |
| WFA Asset Management Corp | 12 | $1.76K | 0.00% | 00.0% | Unchanged |
| Adirondack Trust Co | 12 | $1.76K | 0.00% | 00.0% | Unchanged |
| Umb Bank N A | 11 | $1.61K | 0.00% | +11 | New |
| Quest Partners LLC | 10 | $1.47K | 0.00% | +10 | New |
| IFP Advisors, Inc | 7 | $1.03K | 0.00% | 00.0% | Unchanged |
| DiNuzzo Private Wealth, Inc. | 5 | $735 | 0.00% | 00.0% | Unchanged |
| Kayne Anderson Rudnick Investment Management LLC | 5 | $734 | 0.00% | +5 | New |
| Mather Group, LLC. | 6 | $703 | 0.00% | +6 | New |
| CoreCap Advisors, LLC | 3 | $441 | 0.00% | +3 | New |
| Financial Synergies Wealth Advisors, Inc. | 2 | $294 | 0.00% | +2 | New |
| Amundi | 2 | $272 | 0.00% | −6,404−100.0% | Reduced |
| Rothschild Investment LLC | 1 | $147 | 0.00% | 00.0% | Unchanged |
| Capital Advisors, Ltd. LLC | 2 | $0 | 0.00% | 00.0% | Unchanged |
| Hawk Ridge Capital Management LP | 0 | $0 | 0.00% | −342,528−100.0% | Sold out |
| Nine Ten Capital Management LLC | 0 | $0 | 0.00% | −163,925−100.0% | Sold out |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0 | $0 | 0.00% | −137,294−100.0% | Sold out |
| Twin Tree Management, LP | 0 | $0 | 0.00% | −112,419−100.0% | Sold out |
| Baillie Gifford & Co | 0 | $0 | 0.00% | −86,188−100.0% | Sold out |
| Clearline Capital LP | 0 | $0 | 0.00% | −62,197−100.0% | Sold out |
| Kornitzer Capital Management Inc | 0 | $0 | 0.00% | −53,000−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −51,289−100.0% | Sold out |
| 13D Management LLC | 0 | $0 | 0.00% | −44,095−100.0% | Sold out |
| Man Group plc | 0 | $0 | 0.00% | −41,955−100.0% | Sold out |
| Polar Asset Management Partners Inc. | 0 | $0 | 0.00% | −40,200−100.0% | Sold out |
| Lighthouse Investment Partners, LLC | 0 | $0 | 0.00% | −37,289−100.0% | Sold out |
| DekaBank Deutsche Girozentrale | 0 | $0 | 0.00% | −35,900−100.0% | Sold out |
| Collaborative Holdings Management LP | 0 | $0 | 0.00% | −31,009−100.0% | Sold out |
| Readystate Asset Management LP | 0 | $0 | 0.00% | −27,480−100.0% | Sold out |
| Bell Asset Management Ltd | 0 | $0 | 0.00% | −19,405−100.0% | Sold out |
| Royal London Asset Management Ltd | 0 | $0 | 0.00% | −17,188−100.0% | Sold out |
| Standard Life Aberdeen plc | 0 | $0 | 0.00% | −14,334−100.0% | Sold out |
| Fred Alger Management, LLC | 0 | $0 | 0.00% | −12,439−100.0% | Sold out |
| Weiss Multi-Strategy Advisers LLC | 0 | $0 | 0.00% | −12,000−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −11,611−100.0% | Sold out |
| KP Management LLC | 0 | $0 | 0.00% | −8,884−100.0% | Sold out |
| Krensavage Asset Management, LLC | 0 | $0 | 0.00% | −8,000−100.0% | Sold out |
| Brevan Howard Capital Management LP | 0 | $0 | 0.00% | −7,696−100.0% | Sold out |
| Scientech Research LLC | 0 | $0 | 0.00% | −7,329−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −7,021−100.0% | Sold out |
| LMR Partners LLP | 0 | $0 | 0.00% | −6,768−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −6,428−100.0% | Sold out |
| Entropy Technologies, LP | 0 | $0 | 0.00% | −6,249−100.0% | Sold out |
| Peloton Wealth Strategists | 0 | $0 | 0.00% | −5,950−100.0% | Sold out |
| Carmignac Gestion | 0 | $0 | 0.00% | −5,000−100.0% | Sold out |
| Algert Global LLC | 0 | $0 | 0.00% | −3,270−100.0% | Sold out |
| Edgestream Partners, L.P. | 0 | $0 | 0.00% | −2,297−100.0% | Sold out |
| Aviva PLC | 0 | $0 | 0.00% | −1,714−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −857−100.0% | Sold out |
| Wahed Invest LLC | 0 | $0 | 0.00% | −734−100.0% | Sold out |
| Byrne Asset Management LLC | 0 | $0 | 0.00% | −240−100.0% | Sold out |
| BI Asset Management Fondsmaeglerselskab A/S | 0 | $0 | 0.00% | −119−100.0% | Sold out |
| Nomura Asset Management Co Ltd | 0 | $0 | 0.00% | −110−100.0% | Sold out |
| Farmers & Merchants Trust Co of Chambersburg PA | 0 | $0 | 0.00% | −89−100.0% | Sold out |
| Glassman Wealth Services | 0 | $0 | 0.00% | −82−100.0% | Sold out |
| Global Wealth Strategies & Associates | 0 | $0 | 0.00% | −50−100.0% | Sold out |
| Pineridge Advisors LLC | 0 | $0 | 0.00% | −28−100.0% | Sold out |
| Ronald Blue Trust, Inc. | 0 | $0 | 0.00% | −38−100.0% | Sold out |
| Turtle Creek Wealth Advisors, LLC | 0 | $0 | 0.00% | −21−100.0% | Sold out |
| TD Waterhouse Canada Inc. | 0 | $0 | 0.00% | −8−100.0% | Sold out |
| AdvisorNet Financial, Inc | 0 | $0 | 0.00% | −6−100.0% | Sold out |
| Fairfield, Bush & Co. | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Bokf, NA | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Transamerica Financial Advisors, Inc. | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| M&G Investment Management Ltd | – | – | – | – | Not filed |
| Provence Wealth Management Group | – | – | – | – | Not filed |
| Coppell Advisory Solutions LLC | – | – | – | – | Not filed |