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 2022
Institutional positions in Masimo Corp as of Mar 31, 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
- 457
- −57 vs. Q4 2021
- Shares held
- 45.4M
- −981.6K (−2.1%) vs. Q4 2021
- Total value
- $6.61B
- −$6.96B (−51.3%) vs. Q4 2021
- New holders
- 73
- 180 more added
- Sold out
- 130
- 136 more reduced
6 institutions that held it in Q4 2021 haven't filed for Q1 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2022
Shares, value and share of portfolio for each institution holding Masimo Corp; share changes are against Q4 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Mitsubishi UFJ Trust & Banking Corp | 155,306 | $22.6M | 0.05% | −17,111−9.9% | Reduced |
| Retirement Systems of Alabama | 155,862 | $22.7M | 0.08% | +135+0.1% | Added |
| Cubist Systematic Strategies, LLC | 158,574 | $23.1M | 0.20% | +145,640+1,126.0% | Added |
| Man Group plc | 168,607 | $24.5M | 0.09% | +124,645+283.5% | Added |
| Principal Financial Group Inc | 174,244 | $25.4M | 0.02% | −2,244−1.3% | Reduced |
| APG Asset Management N.V. | 197,188 | $25.8M | 0.05% | −121,676−38.2% | Reduced |
| UBS Group AG | 205,102 | $29.9M | 0.01% | −6,827−3.2% | Reduced |
| AQR Capital Management LLC | 205,376 | $29.9M | 0.06% | +154,063+300.2% | Added |
| Blue Whale Capital LLP | 206,200 | $30.0M | 2.88% | +46,500+29.1% | Added |
| Eversept Partners, LP | 208,970 | $30.4M | 2.80% | +208,970 | New |
| Handelsbanken Fonder AB | 214,630 | $31.2M | 0.17% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 226,526 | $33.0M | 0.01% | +8,501+3.9% | Added |
| Swiss National Bank | 227,214 | $33.1M | 0.02% | +28,400+14.3% | Added |
| Arrowstreet Capital, Limited Partnership | 229,138 | $33.3M | 0.04% | +86,631+60.8% | Added |
| Worldquant Millennium Advisors LLC | 236,073 | $34.4M | 0.84% | +236,073 | New |
| Alyeska Investment Group, L.P. | 254,564 | $37.0M | 0.41% | +145,429+133.3% | Added |
| Deutsche Bank AG | 260,688 | $37.9M | 0.02% | +146,166+127.6% | Added |
| Obermeyer Wood Investment Counsel, LLLP | 263,003 | $38.3M | 2.29% | +68,857+35.5% | Added |
| UBS Asset Management Americas Inc | 264,983 | $38.6M | 0.02% | −4,490−1.7% | Reduced |
| First Republic Investment Management, Inc. | 277,138 | $40.3M | 0.09% | +15,058+5.7% | Added |
| Manufacturers Life Insurance Company, The | 279,108 | $40.7M | 0.03% | +221,675+386.0% | Added |
| Raymond James & Associates | 285,290 | $41.5M | 0.04% | +453+0.2% | Added |
| Korea Investment CORP | 286,307 | $41.7M | 0.10% | +30,775+12.0% | Added |
| ArrowMark Colorado Holdings LLC | 290,786 | $42.3M | 0.37% | +290,786 | New |
| Acadian Asset Management LLC | 299,543 | $43.6M | 0.18% | +293,786+5,103.1% | Added |
| Credit Suisse AG | 300,379 | $43.7M | 0.04% | −334,480−52.7% | Reduced |
| Charles Schwab Investment Management Inc | 317,112 | $46.2M | 0.01% | +14,692+4.9% | Added |
| Ensemble Capital Management, LLC | 334,144 | $48.6M | 4.22% | +73,725+28.3% | Added |
| JPMorgan Chase & Co | 357,191 | $52.0M | 0.01% | +169,506+90.3% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 373,307 | $54.3M | 0.04% | −3,028−0.8% | Reduced |
| Legal & General Group Plc | 409,739 | $59.6M | 0.02% | +9,852+2.5% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 412,123 | $60.0M | 0.21% | −19,258−4.5% | Reduced |
| Geneva Capital Management LLC | 419,314 | $61.0M | 1.18% | −8,827−2.1% | Reduced |
| Goldman Sachs Group Inc | 445,871 | $64.9M | 0.02% | +185,824+71.5% | Added |
| Two Sigma Advisers, LP | 475,300 | $69.2M | 0.18% | +312,500+192.0% | Added |
| Morgan Stanley | 490,422 | $71.4M | 0.01% | +327,753+201.5% | Added |
| Assenagon Asset Management S.A. | 535,812 | $78.0M | 0.25% | +508,537+1,864.5% | Added |
| Citigroup Inc | 551,935 | $80.3M | 0.08% | +259,865+89.0% | Added |
| Northern Trust Corp | 554,860 | $80.8M | 0.01% | −4,821−0.9% | Reduced |
| Bank of New York Mellon Corp | 588,805 | $85.7M | 0.02% | −136,808−18.9% | Reduced |
| Two Sigma Investments, LP | 595,318 | $86.6M | 0.26% | +481,999+425.3% | Added |
| Martin Currie Ltd | 610,845 | $88.9M | 2.85% | +11,423+1.9% | Added |
| Neuberger Berman Group LLC | 659,758 | $96.0M | 0.08% | +143,167+27.7% | Added |
| Geode Capital Management, LLC | 686,384 | $99.8M | 0.01% | +23,610+3.6% | Added |
| D. E. Shaw & Co., Inc. | 716,603 | $104.3M | 0.14% | +701,622+4,683.4% | Added |
| Fundsmith LLPSuperinvestorFundsmith | 761,096 | $110.8M | 0.38% | +325,159+74.6% | Added |
| Ownership Capital B.V. | 928,632 | $135.2M | 1.78% | −1,033,779−52.7% | Reduced |
| Millennium Management LLC | 964,693 | $140.4M | 0.17% | +723,950+300.7% | Added |
| Marshall Wace, LLP | 968,094 | $140.9M | 0.29% | +967,981+856,620.4% | Added |
| Champlain Investment Partners, LLC | 975,547 | $142.0M | 0.74% | +5,860+0.6% | Added |
| Liontrust Investment Partners LLP | 1,007,600 | $146.6M | 1.92% | +1,007,600 | New |
| RTW Investments, LP | 1,127,593 | $164.1M | 3.40% | +277,622+32.7% | Added |
| State Street Corp | 1,730,991 | $251.9M | 0.01% | +27,261+1.6% | Added |
| FMR LLC | 2,069,501 | $301.2M | 0.02% | +14,603+0.7% | Added |
| Vanguard Group Inc | 4,775,660 | $695.0M | 0.02% | +71,918+1.5% | Added |
| BlackRock Inc. | 6,875,547 | $1.00B | 0.03% | −2,150,827−23.8% | Reduced |
| Longfellow Investment Management Co LLC | 2 | – | – | 00.0% | Unchanged |
| Erste Asset Management GmbH | 0 | $0 | 0.00% | −53,000−100.0% | Sold out |
| Massachusetts Financial Services Co | 0 | $0 | 0.00% | −855,583−100.0% | Sold out |
| Vaughan Nelson Investment Management, L.P. | 0 | $0 | 0.00% | −745,800−100.0% | Sold out |
| D1 Capital Partners L.P.SuperinvestorD1 Capital Partners | 0 | $0 | 0.00% | −507,397−100.0% | Sold out |
| Eagle Asset Management Inc | 0 | $0 | 0.00% | −238,353−100.0% | Sold out |
| Natixis Investment Managers International | 0 | $0 | 0.00% | −204,620−100.0% | Sold out |
| Natixis Advisors, L.P. | 0 | $0 | 0.00% | −199,966−100.0% | Sold out |
| Epoch Investment Partners, Inc. | 0 | $0 | 0.00% | −196,081−100.0% | Sold out |
| Bellevue Group AG | 0 | $0 | 0.00% | −131,376−100.0% | Sold out |
| Adage Capital Partners GP, L.L.C. | 0 | $0 | 0.00% | −80,000−100.0% | Sold out |
| AXA S.A. | 0 | $0 | 0.00% | −63,280−100.0% | Sold out |
| Dai-Ichi Life Insurance Company, Ltd | 0 | $0 | 0.00% | −36,132−100.0% | Sold out |
| Ravenstone Capital Management Inc. | 0 | $0 | 0.00% | −25,975−100.0% | Sold out |
| Railway Pension Investments Ltd | 0 | $0 | 0.00% | −24,500−100.0% | Sold out |
| EFG Asset Management (North America) Corp. | 0 | $0 | 0.00% | −22,639−100.0% | Sold out |
| McKinley Capital Management LLC /Delaware | 0 | $0 | 0.00% | −21,330−100.0% | Sold out |
| Cinctive Capital Management LP | 0 | $0 | 0.00% | −19,144−100.0% | Sold out |
| Weiss Multi-Strategy Advisers LLC | 0 | $0 | 0.00% | −17,209−100.0% | Sold out |
| Autus Asset Management, LLC | 0 | $0 | 0.00% | −16,763−100.0% | Sold out |
| Fred Alger Management, LLC | 0 | $0 | 0.00% | −16,572−100.0% | Sold out |
| Lisanti Capital Growth, LLC | 0 | $0 | 0.00% | −14,190−100.0% | Sold out |
| Polar Capital Holdings Plc | 0 | $0 | 0.00% | −13,544−100.0% | Sold out |
| Advisors Asset Management, Inc. | 0 | $0 | 0.00% | −13,028−100.0% | Sold out |
| Natixis | 0 | $0 | 0.00% | −11,910−100.0% | Sold out |
| Metropolitan Life Insurance Co | 0 | $0 | 0.00% | −10,765−100.0% | Sold out |
| Integral Health Asset Management, LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| HighTower Trust Services, LTA | 0 | $0 | 0.00% | −9,398−100.0% | Sold out |
| Azzad Asset Management Inc | 0 | $0 | 0.00% | −8,390−100.0% | Sold out |
| Congress Asset Management Co | 0 | $0 | 0.00% | −7,517−100.0% | Sold out |
| Pacer Advisors, Inc. | 0 | $0 | 0.00% | −7,206−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −6,200−100.0% | Sold out |
| Seaport Global Advisors, LLC | 0 | $0 | 0.00% | −5,301−100.0% | Sold out |
| Allianz Asset Management GmbH | 0 | $0 | 0.00% | −4,589−100.0% | Sold out |
| Sciencast Management LP | 0 | $0 | 0.00% | −4,777−100.0% | Sold out |
| Altman Advisors, Inc. | 0 | $0 | 0.00% | −5,805−100.0% | Sold out |
| Oppenheimer & Co Inc | 0 | $0 | 0.00% | −3,781−100.0% | Sold out |
| Congress Wealth Management LLC | 0 | $0 | 0.00% | −3,666−100.0% | Sold out |
| Doliver Advisors, LP | 0 | $0 | 0.00% | −4,413−100.0% | Sold out |
| Qtron Investments LLC | 0 | $0 | 0.00% | −3,241−100.0% | Sold out |
| Level Four Advisory Services, LLC | 0 | $0 | 0.00% | −3,202−100.0% | Sold out |
| Crown Advisors Management, Inc. | 0 | $0 | 0.00% | −3,000−100.0% | Sold out |
| Moneta Group Investment Advisors LLC | 0 | $0 | 0.00% | −2,411−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −2,409−100.0% | Sold out |