Masimo
MASI
MASI
375 hedge funds and large institutions have $9.68B invested in Masimo in 2025 Q2 according to their latest regulatory filings, with 44 funds opening new positions, 126 increasing their positions, 137 reducing their positions, and 58 closing their positions.
New
Increased
Maintained
Reduced
Closed
more call options, than puts
Call options by funds: $ | Put options by funds: $
more capital invested
Capital invested by funds: $ → $
more ownership
Funds ownership: →
more funds holding in top 10
Funds holding in top 10: →
8% less repeat investments, than reductions
Existing positions increased: 126 | Existing positions reduced: 137
4% less funds holding
Funds holding: 392 → 375 (-17)
24% less first-time investments, than exits
New positions opened: 44 | Existing positions closed: 58
Holders
375
Holding in Top 10
4
Calls
$10.1M
Puts
$3.87M
Top Buyers
| 1 | +$139M | |
| 2 | +$129M | |
| 3 | +$107M | |
| 4 |
Westfield Capital Management
Boston,
Massachusetts
|
+$85.7M |
| 5 |
Massachusetts Financial Services
Boston,
Massachusetts
|
+$84.5M |
Top Sellers
| 1 | -$49.8M | |
| 2 | -$49M | |
| 3 | -$33.7M | |
| 4 |
Dimensional Fund Advisors
Austin,
Texas
|
-$30.3M |
| 5 |
Millennium Management
New York
|
-$22M |
