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Monolithic Power Systems
MPWR

Overview Fund Activity

179 hedge funds and large institutions have $1.93B invested in Monolithic Power Systems in 2015 Q1 according to their latest regulatory filings, with 24 funds opening new positions, 71 increasing their positions, 63 reducing their positions, and 16 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
179
Holders Change
+6
Holders Change %
+3.47%
% of All Funds
4.77%
Holding in Top 10
3
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+50%
% of All Funds
0.08%
New
24
Increased
71
Reduced
63
Closed
16
Calls
$264K
Puts
$390K
Net Calls
-$126K
Net Calls Change
-$4.14M

Top Buyers

1
Fidelity Investments
1
Fidelity Investments
Massachusetts
$238M
2
Lord, Abbett & Co
2
Lord, Abbett & Co
New Jersey
$24.8M
3
RIM
3
RS Investment Management
California
$25.9M
4
Westfield Capital Management
4
Westfield Capital Management
Massachusetts
$27.8M
5
Wellington Management Group
5
Wellington Management Group
Massachusetts
$21.4M

Top Sellers

1
Citadel Advisors
1
Citadel Advisors
Florida
$33.1M
2
Adage Capital Partners
2
Adage Capital Partners
Massachusetts
$84.1M
3
Dimensional Fund Advisors
3
Dimensional Fund Advisors
Texas
$29.7M
4
SCM
4
SG Capital Management
Illinois
$3.22M
5
WRCM
5
Whale Rock Capital Management
Massachusetts
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
RU
126
RobecoSam USA
New York
$527K -$395K -7,500 -43%
Janney Montgomery Scott
127
Janney Montgomery Scott
Pennsylvania
$520K +$520K +9,880 New
R
128
RQSI
Bahamas
$516K -$16K -304 -3%
PI
129
PineBridge Investments
New York
$489K +$60.5K +1,150 +14%
UBS Group
130
UBS Group
Switzerland
$474K -$266K -5,054 -36%
1CM
131
1492 Capital Management
Wisconsin
$449K -$34.7K -658 -7%
ProShare Advisors
132
ProShare Advisors
Maryland
$444K -$41.5K -787 -9%
TI
133
Trexquant Investment
Connecticut
$394K +$394K +7,500 New
3NC
134
300 North Capital
California
$384K – – –
CCMH
135
Cornerstone Capital Management Holdings
New York
$379K +$174K +3,300 +85%
MERSOM
136
Municipal Employees' Retirement System of Michigan
Michigan
$359K -$116K -2,200 -24%
Legal & General Group
137
Legal & General Group
United Kingdom
$349K +$51.7K +975 +17%
RFC
138
Russell Frank Company
Washington
$341K – – –
PNC Financial Services Group
139
PNC Financial Services Group
Pennsylvania
$341K +$141K +2,664 +70%
Two Sigma Investments
140
Two Sigma Investments
New York
$340K -$894K -16,973 -72%
AG
141
Aperio Group
California
$332K +$62.2K +1,182 +23%
SCA
142
Secor Capital Advisors
New York
$304K +$304K +5,782 New
Nomura Holdings
143
Nomura Holdings
Japan
$301K +$301K +5,699 New
COI
144
Connable Office Inc
Michigan
$270K – – –
NI
145
Numeric Investors
Massachusetts
$269K +$269K +5,100 New
Citigroup
146
Citigroup
New York
$255K -$557K -10,572 -69%
MSA
147
Mason Street Advisors
Wisconsin
$252K +$8.41K +160 +3%
BlackRock
148
BlackRock
New York
$244K +$183K +3,468 +297%
M&T Bank
149
M&T Bank
New York
$218K -$11.2K -213 -5%
AB
150
Amalgamated Bank
New York
$206K +$206K +3,919 New
4 5
6
7 8