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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 %
SO
151
STRS Ohio
Ohio
$205K -$1.14M -21,600 -85%
PCM
152
Prelude Capital Management
New York
$205K +$134K +2,545 +188%
SG Americas Securities
153
SG Americas Securities
New York
$196K -$208K -3,950 -52%
BJ
154
BlackRock Japan
Japan
$173K +$140K +2,649 +419%
Canada Life
155
Canada Life
Manitoba, Canada
$155K – – –
OA
156
OFI Advisors
Pennsylvania
$153K +$14K +266 +10%
Barclays
157
Barclays
United Kingdom
$139K -$106K -2,023 -43%
Lazard Asset Management
158
Lazard Asset Management
New York
$116K +$103K +1,965 +802%
Simplex Trading
159
Simplex Trading
Illinois
$114K +$114K +2,168 New
TRCT
160
Tower Research Capital (TRC)
New York
$60K +$60K +1,139 New
Teacher Retirement System of Texas
161
Teacher Retirement System of Texas
Texas
$59K +$2.38K +45 +4%
Parallax Volatility Advisers
162
Parallax Volatility Advisers
California
$55K -$406K -7,743 -88%
Bank of Montreal
163
Bank of Montreal
Ontario, Canada
$53K +$4.45K +84 +9%
BNP Paribas Financial Markets
164
BNP Paribas Financial Markets
France
$48.6K +$48.6K +924 New
CFA
165
Camarda Financial Advisors
Florida
$47K +$14.3K +272 +44%
WTC
166
WhitTier Trust Company
Nevada
$41K – – –
SEI Investments
167
SEI Investments
Pennsylvania
$34K +$29.6K +522 +669%
TDC
168
Thompson Davis & Co
Virginia
$33K +$3.46K +66 +12%
KA
169
Klingman & Associates
New York
$32K – – –
IRS
170
Invictus RG (Singapore)
Singapore
$26K -$82.8K -1,592 -76%
LTFS
171
Ladenburg Thalmann Financial Services
Florida
$17K +$15.6K +291 +1,119%
US Bancorp
172
US Bancorp
Minnesota
$9K – – –
Zurich Cantonal Bank
173
Zurich Cantonal Bank
Switzerland
$7K +$7K +126 New
MFS
174
MSI Financial Services
Massachusetts
$3K +$3K +61 New
Fifth Third Bancorp
175
Fifth Third Bancorp
Ohio
$3K +$3K +64 New
4 5 6
7
8