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Masimo
MASI

Overview Fund Activity

453 hedge funds and large institutions have $11.1B invested in Masimo in 2021 Q2 according to their latest regulatory filings, with 44 funds opening new positions, 164 increasing their positions, 171 reducing their positions, and 65 closing their positions.

Holders
453
Holders Change
-23
Holders Change %
-4.83%
% of All Funds
7.91%
Holding in Top 10
4
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+33.33%
% of All Funds
0.07%
New
44
Increased
164
Reduced
171
Closed
65
Calls
$93.5M
Puts
$22.4M
Net Calls
+$71.1M
Net Calls Change
+$52.4M

Top Buyers

1
BlackRock
1
BlackRock
New York
$2.16B
2
Macquarie Group
2
Macquarie Group
Australia
$137M
3
Korea Investment Corp
3
Korea Investment Corp
South Korea
$67.9M
4
RI
4
RTW Investments
New York
$200M
5
VNIM
5
Vaughan Nelson Investment Management
Texas
$187M

Top Sellers

1
Invesco
1
Invesco
Georgia
$279M
2
Fidelity Investments
2
Fidelity Investments
Massachusetts
$505M
3
Westfield Capital Management
3
Westfield Capital Management
Massachusetts
$0
4
FAM
4
Fred Alger Management
New York
$4.02M
5
Massachusetts Financial Services
5
Massachusetts Financial Services
Massachusetts
$207M
Name Market Value Shares Shares
Change 		Shares
Change %
MGIM
451
M&G Investment Management
United Kingdom
$309 1,276 +1,276 New
Walleye Capital
452
Walleye Capital
New York
$223 920 +920 New
BBHC
453
Brown Brothers Harriman & Co
New York
$41 170 – –
Westfield Capital Management
454
Westfield Capital Management
Massachusetts
– – -207,846 Closed
Bank of Nova Scotia
455
Bank of Nova Scotia
Ontario, Canada
– – -48,592 Closed
Assenagon Asset Management
456
Assenagon Asset Management
Luxembourg
– – -35,272 Closed
TPM
457
Triasima Portfolio Management
Quebec, Canada
– – -23,770 Closed
Qube Research & Technologies (QRT)
458
Qube Research & Technologies (QRT)
United Kingdom
– – -21,134 Closed
RA
459
Royce & Associates
New York
– – -20,000 Closed
Tudor Investment Corp
460
Tudor Investment Corp
Connecticut
– – -11,958 Closed
FRAF
461
Första AP-fonden
Sweden
– – -11,500 Closed
MF
462
Magnetar Financial
Illinois
– – -9,772 Closed
TC
463
TwinBeech Capital
New York
– – -9,439 Closed
Voloridge Investment Management
464
Voloridge Investment Management
Florida
– – -9,106 Closed
PP
465
Prudential plc
United Kingdom
– – -8,318 Closed
FCM
466
Fortis Capital Management
Washington
– – -8,000 Closed
HW
467
Hancock Whitney
Mississippi
– – -6,327 Closed
LBD
468
Landsberg Bennett & Dubbaneh
Florida
– – -6,227 Closed
CWM
469
CIBC World Markets
New York
– – -5,460 Closed
ECM
470
ExodusPoint Capital Management
New York
– – -5,224 Closed
ACA
471
Aptus Capital Advisors
Alabama
– – -5,150 Closed
DA
472
Duality Advisers
Florida
– – -5,083 Closed
DCM
473
Davidson Capital Management
Texas
– – -4,425 Closed
MAM
474
Martingale Asset Management
Massachusetts
– – -4,403 Closed
TI
475
Trexquant Investment
Connecticut
– – -4,002 Closed
17 18
19
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