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Monolithic Power Systems
MPWR

Overview Fund Activity

123 hedge funds and large institutions have $861M invested in Monolithic Power Systems in 2013 Q2 according to their latest regulatory filings, with 123 funds opening new positions, increasing their positions, reducing their positions, and closing their positions.

Holders
123
Holders Change
+123
Holders Change %
–
% of All Funds
4.02%
Holding in Top 10
2
Holding in Top 10 Change
+2
Holding in Top 10 Change %
%
% of All Funds
0.07%
New
123
Increased
–
Reduced
–
Closed
–
Calls
$331K
Puts
$80K
Net Calls
+$251K
Net Calls Change
+$251K

Top Buyers

1
Fidelity Investments
1
Fidelity Investments
Massachusetts
$89.2M
2
Adage Capital Partners
2
Adage Capital Partners
Massachusetts
$68.6M
3
FCM
3
Frontier Capital Management
Massachusetts
$47.5M
4
Vanguard Group
4
Vanguard Group
Pennsylvania
$47.3M
5
CWAM
5
Columbia Wanger Asset Management
Illinois
$46.1M

Top Sellers

No sellers this quarter
Name Market Value Shares Shares
Change 		Shares
Change %
Fidelity Investments
1
Fidelity Investments
Massachusetts
$89.2M 3,698,590 +3,698,590 New
Adage Capital Partners
2
Adage Capital Partners
Massachusetts
$68.6M 2,847,112 +2,847,112 New
FCM
3
Frontier Capital Management
Massachusetts
$47.5M 1,970,166 +1,970,166 New
Vanguard Group
4
Vanguard Group
Pennsylvania
$47.3M 1,963,684 +1,963,684 New
CWAM
5
Columbia Wanger Asset Management
Illinois
$46.1M 1,914,000 +1,914,000 New
BFA
6
BlackRock Fund Advisors
California
$39.3M 1,631,949 +1,631,949 New
Citadel Advisors
7
Citadel Advisors
Florida
$36.8M 1,524,377 +1,524,377 New
O
8
OppenheimerFunds
New York
$34.4M 1,428,440 +1,428,440 New
TI
9
Turner Investments
Pennsylvania
$31.9M 1,322,107 +1,322,107 New
CC
10
Carlson Capital
Texas
$26.3M 1,089,188 +1,089,188 New
Massachusetts Financial Services
11
Massachusetts Financial Services
Massachusetts
$22.3M 925,522 +925,522 New
BIT
12
BlackRock Institutional Trust
California
$22.2M 921,234 +921,234 New
Dimensional Fund Advisors
13
Dimensional Fund Advisors
Texas
$21.9M 907,974 +907,974 New
MAA
14
Managed Account Advisors
New Jersey
$19.4M 804,182 +804,182 New
William Blair & Company
15
William Blair & Company
Illinois
$17.7M 735,368 +735,368 New
State of Wisconsin Investment Board
16
State of Wisconsin Investment Board
Wisconsin
$16.2M 673,186 +673,186 New
State Street
17
State Street
Massachusetts
$16.1M 669,496 +669,496 New
Wellington Management Group
18
Wellington Management Group
Massachusetts
$14.7M 611,299 +611,299 New
HCMT
19
Highland Capital Management (Texas)
Texas
$14.3M 591,674 +591,674 New
Northern Trust
20
Northern Trust
Illinois
$13M 538,387 +538,387 New
CCI
21
Columbus Circle Investors
$12.7M 525,717 +525,717 New
Bank of New York Mellon
22
Bank of New York Mellon
New York
$11.3M 470,091 +470,091 New
ClearBridge Investments
23
ClearBridge Investments
New York
$10.7M 444,079 +444,079 New
GIM
24
Granahan Investment Management
Massachusetts
$10M 415,650 +415,650 New
VOYA Investment Management
25
VOYA Investment Management
Georgia
$9.86M 409,110 +409,110 New
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