386 hedge funds and large institutions have $7.24B invested in Masimo in 2025 Q4 according to their latest regulatory filings, with 84 funds opening new positions, 99 increasing their positions, 131 reducing their positions, and 50 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding

Funds holding:

more ownership

Funds ownership:

more funds holding in top 10

Funds holding in top 10:

13% less capital invested

Capital invested by funds: $8.29B → $7.24B (-$1.05B)

24% less repeat investments, than reductions

Existing positions increased: 99 | Existing positions reduced: 131

63% less call options, than puts

Call options by funds: $3.55M | Put options by funds: $9.69M

Holders
386
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
4
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$3.55M
Puts
$9.69M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
CH
376
Cromwell Holdings
Wyoming
$520
CPG
377
Cornerstone Planning Group
New Jersey
$275
BFS
378
Bare Financial Services
Pennsylvania
$260
CFP
379
Comprehensive Financial Planning
Pennsylvania
$260
SWM
380
SHP Wealth Management
Massachusetts
$260
DF
381
Dunhill Financial
United Kingdom
$154
DF
382
DecisionPoint Financial
Arizona
$131
ACA
383
American Capital Advisory
Idaho
$131
PTC
384
Private Trust Company
Ohio
$130
IPS
385
Investors Portfolio Services
Washington
$82
DCP
386
Durable Capital Partners
Maryland
Adage Capital Partners
387
Adage Capital Partners
Massachusetts
CRM
388
Cramer Rosenthal McGlynn
Connecticut
JAM
389
Jupiter Asset Management
United Kingdom
BM
390
Bridger Management
New York
IG
391
ING Group
Netherlands
ET
392
Entropy Technologies
New York
LCM
393
Landscape Capital Management
New Jersey
MAM
394
Montanaro Asset Management
United Kingdom
QIM
395
Quantitative Investment Management
Virginia
PL
396
Perpetual Ltd
Australia
Zurich Cantonal Bank
397
Zurich Cantonal Bank
Switzerland
MUAMU
398
Mitsubishi UFJ Asset Management (UK)
United Kingdom
FCM
399
Fieldview Capital Management
Michigan
Teacher Retirement System of Texas
400
Teacher Retirement System of Texas
Texas