82 hedge funds and large institutions have $123M invested in Vicor in 2013 Q4 according to their latest regulatory filings, with 8 funds opening new positions, 29 increasing their positions, 28 reducing their positions, and 10 closing their positions.

Holders
82
Holders Change
-3
Holders Change %
-3.53%
% of All Funds
2.38%
Holding in Top 10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
8
Increased
29
Reduced
28
Closed
10
Calls
$162K
Puts
$312K
Net Calls
-$150K
Net Calls Change
+$399K
Name Market Value Shares Shares
Change
Shares
Change %
SM
1
Senvest Management
New York
$15.2M 1,132,083 +71,240 +7%
BFA
2
BlackRock Fund Advisors
California
$13.9M 1,035,518 +24,943 +2%
MHP
3
Manatuck Hill Partners
Connecticut
$12.9M 961,338
Vanguard Group
4
Vanguard Group
Pennsylvania
$9.31M 693,579 +23,997 +4%
Dimensional Fund Advisors
5
Dimensional Fund Advisors
Texas
$9.26M 690,092 +801 +0.1%
BIT
6
BlackRock Institutional Trust
California
$8.55M 636,707 -29,794 -4%
IIM
7
Ironwood Investment Management
Massachusetts
$5.21M 388,177 +14,610 +4%
State Street
8
State Street
Massachusetts
$4.89M 364,627 -2,293 -0.6%
Northern Trust
9
Northern Trust
Illinois
$3.48M 258,900 -3,995 -2%
ACM
10
Ashford Capital Management
Delaware
$3.48M 258,924 +243,924 +1,626%
TA
11
Teton Advisors
New York
$2.92M 217,591 +25,091 +13%
Bank of New York Mellon
12
Bank of New York Mellon
New York
$2.31M 172,357 -3,657 -2%
Renaissance Technologies
13
Renaissance Technologies
New York
$2.14M 159,500 -31,600 -17%
GI
14
GAMCO Investors
Connecticut
$1.88M 140,000 +54,009 +63%
Invesco
15
Invesco
Georgia
$1.84M 137,092 +5,020 +4%
GF
16
Gabelli Funds
New York
$1.81M 135,005
RA
17
Royce & Associates
New York
$1.59M 118,363 -31,637 -21%
Principal Financial Group
18
Principal Financial Group
Iowa
$1.42M 105,706 +6,603 +7%
TCIM
19
TIAA CREF Investment Management
New York
$1.16M 86,182 +11,900 +16%
Geode Capital Management
20
Geode Capital Management
Massachusetts
$1.04M 77,261 +1,585 +2%
New York State Teachers Retirement System (NYSTRS)
21
New York State Teachers Retirement System (NYSTRS)
New York
$982K 73,201 -4,100 -5%
Ameriprise
22
Ameriprise
Minnesota
$964K 71,839 +2,308 +3%
Morgan Stanley
23
Morgan Stanley
New York
$957K 71,386 +3,429 +5%
BIM
24
BlackRock Investment Management
Delaware
$936K 69,762 -1,544 -2%
CL
25
CSS LLC
Illinois
$884K 65,849 +65,849 New