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 2021
Institutional positions in Masimo Corp as of Jun 30, 2021. 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
- 459
- −20 vs. Q1 2021
- Shares held
- 45.8M
- +1.39M (+3.1%) vs. Q1 2021
- Total value
- $11.1B
- +$909.0M (+8.9%) vs. Q1 2021
- New holders
- 45
- 165 more added
- Sold out
- 65
- 172 more reduced
2 institutions that held it in Q1 2021 haven't filed for Q2 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2021: 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 2021
Shares, value and share of portfolio for each institution holding Masimo Corp; share changes are against Q1 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FORA Capital, LLC | 0 | $0 | 0.00% | −956−100.0% | Sold out |
| Procyon Private Wealth Partners, LLC | 0 | $0 | 0.00% | −921−100.0% | Sold out |
| Blueshift Asset Management, LLC | 0 | $0 | 0.00% | −890−100.0% | Sold out |
| Catalyst Capital Advisors LLC | 0 | $0 | 0.00% | −845−100.0% | Sold out |
| AGF Investments LLC | 0 | $0 | 0.00% | −697−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −525−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −329−100.0% | Sold out |
| Montag A & Associates Inc | 0 | $0 | 0.00% | −291−100.0% | Sold out |
| Newfound Research LLC | 0 | $0 | 0.00% | −198−100.0% | Sold out |
| Sowell Financial Services LLC | 0 | $0 | 0.00% | −168−100.0% | Sold out |
| Ameritas Investment Company, LLC | 0 | $0 | 0.00% | −111−100.0% | Sold out |
| Covington Capital Management | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Duncker Streett & Co Inc | 0 | $0 | 0.00% | −75−100.0% | Sold out |
| Eudaimonia Partners, LLC | 0 | $0 | 0.00% | −57−100.0% | Sold out |
| Meridian Wealth Partners, LLC | 0 | $0 | 0.00% | −40−100.0% | Sold out |
| Valeo Financial Advisors, LLC | 0 | $0 | 0.00% | −38−100.0% | Sold out |
| Human Investing LLC | 0 | $0 | 0.00% | −29−100.0% | Sold out |
| JFS Wealth Advisors, LLC | 0 | $0 | 0.00% | −24−100.0% | Sold out |
| Atlas Private Wealth Management | 0 | $0 | 0.00% | −25−100.0% | Sold out |
| Wealthcare Advisory Partners LLC | 0 | $0 | 0.00% | −21−100.0% | Sold out |
| RWM Asset Management, LLC | 0 | $0 | 0.00% | −21−100.0% | Sold out |
| Evoke Wealth, LLC | 0 | $0 | 0.00% | −16−100.0% | Sold out |
| Wealthcare Capital Management LLC | 0 | $0 | 0.00% | −7−100.0% | Sold out |
| Standard Family Office LLC | 0 | $0 | 0.00% | −6−100.0% | Sold out |
| Waddell & Reed Financial Inc | – | – | – | – | Not filed |
| Amundi Asset Management US, Inc. | – | – | – | – | Not filed |