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Masimo
MASI

Overview Fund Activity

362 hedge funds and large institutions have $8.5B invested in Masimo in 2024 Q4 according to their latest regulatory filings, with 63 funds opening new positions, 117 increasing their positions, 115 reducing their positions, and 50 closing their positions.

Holders
362
Holders Change
+5
Holders Change %
+1.4%
% of All Funds
4.82%
Holding in Top 10
4
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+33.33%
% of All Funds
0.05%
New
63
Increased
117
Reduced
115
Closed
50
Calls
$21.3M
Puts
$12.6M
Net Calls
+$8.76M
Net Calls Change
-$29M

Top Buyers

1
Fidelity Investments
1
Fidelity Investments
Massachusetts
$1.34B
2
Capital Research Global Investors
2
Capital Research Global Investors
California
$406M
3
Massachusetts Financial Services
3
Massachusetts Financial Services
Massachusetts
$287M
4
AllianceBernstein
4
AllianceBernstein
Tennessee
$157M
5
Millennium Management
5
Millennium Management
New York
$67.5M

Top Sellers

1
AMG
1
Ace Management Global
Brazil
$7.88M
2
FCM
2
Farallon Capital Management
California
$65.6M
3
RI
3
RTW Investments
New York
$113M
4
Westfield Capital Management
4
Westfield Capital Management
Massachusetts
$127M
5
Man Group
5
Man Group
United Kingdom
$10.7M
Name Market Value Shares Shares
Change 		Shares
Change %
NP
76
NS Partners
United Kingdom
$7.05M 42,649 -388 -0.9%
PMAM
77
Picton Mahoney Asset Management
Ontario, Canada
$7.04M 42,610 +28,153 +195%
LP
78
LMR Partners
United Kingdom
$7.02M 42,448 +42,448 New
California State Teachers Retirement System (CalSTRS)
79
California State Teachers Retirement System (CalSTRS)
California
$7.01M 42,383 -229 -0.5%
Two Sigma Investments
80
Two Sigma Investments
New York
$6.59M 39,889 -302,938 -88%
Canada Life
81
Canada Life
Manitoba, Canada
$6.2M 37,560 – –
OCAM
82
Onex Canada Asset Management
Ontario, Canada
$6.13M 37,061 +22,636 +157%
ACM
83
Atika Capital Management
New York
$6.08M 36,800 +36,800 New
Baird Financial Group
84
Baird Financial Group
Wisconsin
$5.65M 34,198 +26,914 +369%
Norges Bank
85
Norges Bank
Norway
$5.52M 33,394 +33,394 New
GF
86
Gabelli Funds
New York
$5.45M 33,000 – –
OSAM
87
O'Shaughnessy Asset Management
Connecticut
$5.19M 31,375 +31,375 New
Envestnet Asset Management
88
Envestnet Asset Management
Illinois
$5.14M 31,107 +4,579 +17%
SDIC
89
South Dakota Investment Council
South Dakota
$5.06M 30,611 – –
Jane Street
90
Jane Street
New York
$5.04M 30,487 +5,807 +24%
Royal Bank of Canada
91
Royal Bank of Canada
Ontario, Canada
$5.02M 30,371 +16,886 +125%
ZIM
92
Zacks Investment Management
Illinois
$4.5M 27,229 +671 +3%
SEI Investments
93
SEI Investments
Pennsylvania
$4.4M 26,601 -1,481 -5%
SCM
94
Sterling Capital Management
North Carolina
$4.33M 26,221 -14,718 -36%
MIM
95
MetLife Investment Management
New Jersey
$4.3M 26,026 +2,214 +9%
WP
96
Westmount Partners
California
$4.3M 25,991 – –
IIM
97
INTECH Investment Management
Florida
$4.24M 25,622 +16,178 +171%
ECM
98
ExodusPoint Capital Management
New York
$4.2M 25,426 +25,426 New
CCM
99
Cinctive Capital Management
New York
$4.16M 25,176 +25,176 New
BG
100
Bellevue Group
Switzerland
$3.99M 24,166 +24,166 New
2 3
4
5 6