MasimoMASI
13F holders, Q1 2024 (March 31)339holders
7famous investors
$146.91avg. 13F price*
At the end of Q1 2024, 339 institutions reported holding Masimo Corp. (MASI) in their 13F filings. The largest holders were BlackRock Inc. ($1.2B), FMR LLC ($1.0B) and Politan Capital Management LP ($692.2M). 7 famous investors held it, including Ken Griffin (0.2% of Citadel Advisors's portfolio), Joel Greenblatt (0.2% of Gotham Asset Management's portfolio) and Steve Cohen (0.1% of Point72 Asset Management's portfolio).
- Company
- Masimo Corp.
- CUSIP
- 574795100
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 44 | $203.6M |
| Exits | 49 | $166.5M |
Ownership 339 holders
| BlackRock Inc. | 0.03% | Add +39.3% | 7,880,374 | $1.2B |
| FMR LLC | 0.07% | Add +0.7% | 6,977,281 | $1.0B |
| Politan Capital Management LP | 36.00% | No change | 4,713,518 | $692.2M |
| Vanguard Group Inc. | 0.01% | Reduce -4.7% | 4,555,853 | $669.0M |
| Capital Research Global Investors | 0.08% | Add +0.0% | 2,269,246 | $333.2M |
| Massachusetts Financial Services Co. | 0.08% | Add +7.1% | 1,721,785 | $252.8M |
| Farallon Capital Management, L.L.C. | 1.31% | Add +13.6% | 1,489,563 | $218.7M |
| RTW Investments, LP | 3.17% | No change | 1,462,400 | $214.8M |
| State Street Corp. | 0.01% | Add +0.2% | 1,360,322 | $199.8M |
| Citadel Advisors | 0.20% | Add +76.1% | 1,345,216 | $197.5M |
| T. Rowe Price Investment Management, Inc. | 0.11% | Add +3.7% | 1,205,063 | $177.0M |
| Ace Management Global Ltd. | 63.47% | — | 1,169,352 | $171.7M |
| Thrivent Financial for Lutherans | 0.25% | Reduce -19.4% | 856,860 | $125.8M |
| Liontrust Investment Partners LLP | 1.69% | Reduce -3.1% | 825,529 | $121.2M |
| Holocene Advisors, LP | 0.42% | New | 778,414 | $114.3M |
| Geode Capital Management, LLC | 0.01% | Add +4.2% | 754,160 | $110.8M |
| Westfield Capital Management Co. LP | 0.53% | Reduce -16.2% | 686,100 | $100.8M |
| Schroder Investment Management Group | 0.09% | Reduce -39.9% | 527,336 | $77.4M |
| Morgan Stanley | 0.01% | Add +2.9% | 471,459 | $69.2M |
| Sumitomo Mitsui Trust Group, Inc. | 0.04% | Reduce -5.3% | 391,889 | $57.5M |
| Bank of New York Mellon Corp | 0.01% | Reduce -6.0% | 390,925 | $57.4M |
| MIG Capital, LLC | 7.79% | Reduce -14.7% | 381,732 | $56.1M |
| Alyeska Investment Group, L.P. | 0.35% | Reduce -29.0% | 379,419 | $55.7M |
| Charles Schwab Investment Management Inc. | 0.01% | Add +2.8% | 378,375 | $55.6M |
| Ensemble Capital Management, LLC | 4.51% | Reduce -1.6% | 366,335 | $53.8M |
| Dimensional Fund Advisors LP | 0.01% | Add +19.5% | 360,337 | $52.9M |
| JPMorgan Chase & Co. | 0.00% | Add +0.8% | 358,058 | $52.6M |
| Millennium Management | 0.04% | Add +76.6% | 347,016 | $51.0M |
| Baron Capital (BAMCO) | 0.14% | New | 345,800 | $50.8M |
| Point72 Asset Management | 0.14% | Reduce -36.8% | 326,154 | $47.9M |
| Jackson Square Partners, LLC | 1.81% | Reduce -61.1% | 296,458 | $43.5M |
| Northern Trust Corp. | 0.01% | Reduce -20.1% | 277,451 | $40.7M |
| Balyasny Asset Management L.P. | 0.10% | Reduce -15.5% | 255,508 | $37.5M |
| ArrowMark Colorado Holdings LLC | 0.36% | Reduce -48.6% | 218,810 | $32.1M |
| Raymond James & Associates | 0.02% | Add +1.1% | 181,611 | $26.7M |
| Senator Investment Group LP | 1.16% | Add +58.2% | 174,000 | $25.6M |
| Principal Financial Group Inc. | 0.01% | Add +1.9% | 167,748 | $24.6M |
| Federated Hermes, Inc. | 0.05% | Reduce -7.9% | 155,385 | $22.8M |
| Retirement Systems of Alabama | 0.08% | Add +0.1% | 144,938 | $21.3M |
| Rhumbline Advisers | 0.02% | Reduce -3.5% | 133,132 | $19.6M |
| Bank of America Corp. | 0.00% | Add +563.8% | 130,290 | $19.1M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -30.2% | 122,453 | $18.0M |
| Rockefeller Capital Management L.P. | 0.05% | Reduce -8.9% | 116,673 | $17.1M |
| Erste Asset Management GmbH | 0.23% | New | 115,000 | $16.9M |
| Montanaro Asset Management Ltd | 2.84% | Add +2.7% | 107,100 | $15.7M |
| Comerica Bank | 0.07% | Reduce -6.0% | 102,695 | $15.1M |
| Legal & General Group Plc | 0.00% | Reduce -47.8% | 99,773 | $14.7M |
| Sei Investments Co. | 0.02% | Reduce -47.0% | 95,642 | $14.0M |
| Marshall Wace, LLP | 0.02% | Reduce -52.3% | 90,207 | $13.2M |
| Nuveen Asset Management, LLC | 0.00% | Reduce -4.0% | 89,358 | $13.1M |
| Swiss National Bank | 0.01% | Add +0.2% | 88,600 | $13.0M |
| GAMCO Investors | 0.13% | No change | 84,500 | $12.4M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Reduce -18.7% | 83,182 | $12.2M |
| Invesco Ltd. | 0.00% | Add +1.2% | 79,040 | $11.6M |
| Ameriprise Financial Inc. | 0.00% | Reduce -4.7% | 78,881 | $11.6M |
| Gotham Asset Management | 0.17% | Reduce -3.7% | 77,098 | $11.3M |
| FIL Ltd | 0.01% | Reduce -66.2% | 73,187 | $10.7M |
| Susquehanna Portfolio Strategies, LLC | 0.25% | Reduce -14.6% | 72,729 | $10.7M |
| T. Rowe Price Associates Inc. | 0.00% | Reduce -82.6% | 71,548 | $10.5M |
| State Board of Administration of Florida Retirement System | 0.02% | Add +11.6% | 54,839 | $10.1M |
| Wells Fargo & Company | 0.00% | Reduce -42.3% | 67,364 | $9.9M |
| Barclays PLC | 0.00% | Add +34.1% | 66,040 | $9.7M |
| First Trust Advisors LP | 0.01% | Add +1859.5% | 62,526 | $9.2M |
| Picton Mahoney Asset Management | 0.38% | Reduce -39.8% | 61,990 | $9.1M |
| California Public Employees Retirement System | 0.01% | Reduce -20.4% | 61,615 | $9.0M |
| Alliancebernstein L.P. | 0.00% | Reduce -9.6% | 61,055 | $9.0M |
| American International Group, Inc. | 0.03% | Reduce -2.0% | 59,110 | $8.7M |
| BNP Paribas Financial Markets | 0.01% | Reduce -7.4% | 57,254 | $8.4M |
| Citigroup Inc. | 0.01% | Add +6.3% | 55,923 | $8.2M |
| Woodline Partners LP | 0.07% | Reduce -81.2% | 53,146 | $7.8M |
| Logan Capital Management Inc. | 0.32% | Add +2.5% | 51,113 | $7.5M |
| New York State Teachers Retirement System | 0.02% | Add +0.4% | 50,748 | $7.5M |
| Wilmington Savings Fund Society, FSB | 0.28% | — | 50,080 | $7.4M |
| Mirae Asset Global Investments Co., Ltd. | 0.02% | Add +33.9% | 42,196 | $7.3M |
| Credit Suisse AG/ | 0.01% | Add +1.1% | 47,782 | $7.0M |
| Allspring Global Investments Holdings, LLC | 0.01% | Add +90.5% | 46,607 | $6.8M |
| California State Teachers Retirement System | 0.01% | Reduce -5.0% | 44,793 | $6.6M |
| UBS Group AG | 0.00% | Add +36.2% | 43,752 | $6.4M |
| NS Partners Ltd | 0.28% | Add +17.6% | 41,885 | $6.2M |
| CenterBook Partners LP | 0.42% | Add +4.8% | 41,313 | $6.1M |
| Texas Permanent School Fund Corp. | 0.04% | Add +1.4% | 38,847 | $5.7M |
| PEAK6 Investments LLC | 0.28% | Add +4.4% | 38,758 | $5.7M |
| Manufacturers Life Insurance Company, The | 0.01% | Reduce -32.3% | 38,277 | $5.6M |
| Moran Wealth Management, LLC | 0.18% | Add +4.6% | 37,380 | $5.5M |
| New York State Common Retirement Fund | 0.01% | Reduce -21.0% | 37,375 | $5.5M |
| Trexquant Investment LP | 0.10% | New | 35,755 | $5.3M |
| BRITISH COLUMBIA INVESTMENT MANAGEMENT Corp | 0.04% | No change | 35,000 | $5.1M |
| Norges Bank | 0.00% | Add +284.1% | 34,407 | $5.1M |
| TD Asset Management Inc | 0.00% | Reduce -56.9% | 34,230 | $5.0M |
| APG Asset Management N.V. | 0.01% | Add +540.7% | 36,669 | $5.0M |
| Gabelli Funds LLC | 0.04% | No change | 33,000 | $4.8M |
| South Dakota Investment Council | 0.09% | Reduce -5.5% | 30,647 | $4.5M |
| Storebrand Asset Management As | 0.01% | Reduce -2.6% | 28,192 | $4.1M |
| Brown Capital Management LLC | 0.07% | Reduce -0.5% | 26,844 | $3.9M |
| State of New Jersey Common Pension Fund D | 0.01% | No change | 26,666 | $3.9M |
| Royal Bank of Canada | 0.00% | Reduce -3.4% | 26,546 | $3.9M |
| Mutual of America Capital Management LLC | 0.04% | Reduce -3.9% | 26,447 | $3.9M |
| Westmount Partners, LLC | 1.40% | No change | 26,424 | $3.9M |
| MetLife Investment Management, LLC | 0.03% | Reduce -2.4% | 26,144 | $3.8M |
| CANADA LIFE ASSURANCE Co | 0.01% | Reduce -21.9% | 25,446 | $3.7M |
"% of holder's portfolio" is MASI's weight in each manager's 13F, not the share of Masimo Corp. the manager owns.