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MASI

Masimo
MASI

Delisted

MASI was delisted on the 9th of June, 2026.

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153 hedge funds and large institutions have $987M invested in Masimo in 2013 Q2 according to their latest regulatory filings, with 153 funds opening new positions, increasing their positions, reducing their positions, and closing their positions.

New
Increased
Maintained
Reduced
Closed

92% less call options, than puts

Call options by funds: $76K | Put options by funds: $970K

Holders
153
Holders Change
+153
Holders Change %
–
% of All Funds
4.99%
Holding in Top 10
2
Holding in Top 10 Change
+2
Holding in Top 10 Change %
% of All Funds
0.07%
New
153
Increased
–
Reduced
–
Closed
–
Calls
$76K
Puts
$970K
Net Calls
-$894K
Net Calls Change
-$894K

Top Buyers

No buyers this quarter

Top Sellers

No sellers this quarter
Name Holding Trade Value Shares
Change 		Change in
Stake
CC
126
Curian Capital
Colorado
$296K +$294K +13,955 New
Barclays
127
Barclays
United Kingdom
$296K +$294K +13,985 New
Jennison Associates
128
Jennison Associates
New York
$293K +$290K +13,801 New
PP
129
PDT Partners
New York
$262K +$260K +12,378 New
TRSOTSOK
130
Teachers Retirement System of the State of Kentucky
Kentucky
$261K +$259K +12,300 New
ZCM
131
Zebra Capital Management
Connecticut
$255K +$253K +12,046 New
BAS
132
Brown Advisory Securities
Maryland
$252K +$248K +11,782 New
OPERF
133
Oregon Public Employees Retirement Fund
Oregon
$239K +$237K +11,274 New
ACI
134
Advance Capital I
Michigan
$214K +$212K +10,100 New
SAM
135
Securian Asset Management
Minnesota
$162K +$161K +7,657 New
SG Americas Securities
136
SG Americas Securities
New York
$141K +$140K +6,639 New
IRS
137
Invictus RG (Singapore)
Singapore
$134K +$133K +6,335 New
BPBT
138
Boston Private Bank & Trust
Massachusetts
$121K +$120K +5,701 New
BlackRock
139
BlackRock
New York
$102K +$101K +4,782 New
U
140
UBS
Switzerland
$90K +$90.2K +4,288 New
Teacher Retirement System of Texas
141
Teacher Retirement System of Texas
Texas
$79K +$78.1K +3,712 New
ILIM
142
Irish Life Investment Managers
Ireland
$55.1K +$54.8K +2,604 New
OA
143
OFI Advisors
Pennsylvania
$53K +$52.1K +2,478 New
Bank of Montreal
144
Bank of Montreal
Ontario, Canada
$37K +$37.1K +1,764 New
AAM
145
Advisors Asset Management
Colorado
$36K +$35.8K +1,700 New
KBC Group
146
KBC Group
Belgium
$23K +$23.3K +1,108 New
OMCS
147
Old Mutual Customised Solutions
South Africa
$13K +$12.6K +600 New
GGPS
148
Gary Goldberg Planning Services
New York
$9K +$9.15K +435 New
SMA
149
Simply Money Advisors
Ohio
$3K +$2.65K +126 New
Fifth Third Bancorp
150
Fifth Third Bancorp
Ohio
$2K +$1.64K +78 New
3 4 5
6
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MASI Hedge Fund Activity: Q2 2013 in Review

153 of the 3,065 institutional investors tracked by Wall St. Rank reported a position in Masimo (MASI) for Q2 2013, worth a combined $987M.

Buyers outnumbered sellers: 153 funds opened new MASI positions and 0 closed out — a net gain of 153 holders — while 0 added to existing stakes and 0 trimmed.

  • 153 institutional investors held Masimo (MASI) as of Q2 2013, up from 0 in Q1 2013.
  • Funds reported $987M of Masimo stock for Q2 2013.
  • 153 funds opened new Masimo positions in Q2 2013 and 0 closed out, a net change of +153 holders.

Based on aggregated 13F filings for Q2 2013.