MPWR icon

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.

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 Market Value Shares Shares
Change 		Shares
Change %
Fidelity Investments
1
Fidelity Investments
Massachusetts
$238M 4,514,277 +632,686 +16%
Vanguard Group
2
Vanguard Group
Pennsylvania
$133M 2,518,713 +45,215 +2%
BFA
3
BlackRock Fund Advisors
California
$115M 2,180,439 +131,841 +6%
EARNEST Partners
4
EARNEST Partners
Georgia
$89.4M 1,698,519 -156,178 -8%
Adage Capital Partners
5
Adage Capital Partners
Massachusetts
$84.1M 1,597,517 -395,952 -20%
O
6
OppenheimerFunds
New York
$60.8M 1,154,360 -17,130 -1%
Invesco
7
Invesco
Georgia
$59.9M 1,136,976 +27,407 +2%
BIT
8
BlackRock Institutional Trust
California
$53.4M 1,013,499 +77,449 +8%
FCM
9
Frontier Capital Management
Massachusetts
$49.7M 943,173 -100,080 -10%
AllianceBernstein
10
AllianceBernstein
Tennessee
$48.8M 927,310 -166,661 -15%
ClearBridge Investments
11
ClearBridge Investments
New York
$45.3M 861,027 +1,430 +0.2%
State Street
12
State Street
Massachusetts
$41.9M 796,696 +8,826 +1%
JPMorgan Chase & Co
13
JPMorgan Chase & Co
New York
$41.3M 784,604 -50,365 -6%
CWAM
14
Columbia Wanger Asset Management
Illinois
$34.9M 662,000 – –
Citadel Advisors
15
Citadel Advisors
Florida
$33.1M 628,497 -438,199 -41%
Northern Trust
16
Northern Trust
Illinois
$29.8M 566,086 +1,783 +0.3%
Dimensional Fund Advisors
17
Dimensional Fund Advisors
Texas
$29.7M 564,372 -266,189 -32%
Bank of New York Mellon
18
Bank of New York Mellon
New York
$29.2M 555,411 -2,322 -0.4%
Westfield Capital Management
19
Westfield Capital Management
Massachusetts
$27.8M 528,925 +277,164 +110%
RIM
20
RS Investment Management
California
$25.9M 491,560 +426,260 +653%
Jennison Associates
21
Jennison Associates
New York
$25.6M 485,281 +1,562 +0.3%
Loomis, Sayles & Company
22
Loomis, Sayles & Company
Massachusetts
$25.2M 478,206 -32,636 -6%
CC
23
Carlson Capital
Texas
$25.1M 476,565 -100,713 -17%
Lord, Abbett & Co
24
Lord, Abbett & Co
New Jersey
$24.8M 471,363 +471,363 New
Neuberger Berman Group
25
Neuberger Berman Group
New York
$24.3M 461,027 -6,803 -1%
1
2 3 4 5