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American Superconductor
AMSC

Name Holding Trade Value Shares
Change 		Change in
Stake
BlackRock
1
BlackRock
New York
$108M +$5.24M +121,107 +3%
Vanguard Group
2
Vanguard Group
Pennsylvania
$101M +$24.9M +576,831 +20%
Baillie Gifford & Co
3
Baillie Gifford & Co
United Kingdom
$43.4M +$3.44M +79,509 +6%
State Street
4
State Street
Massachusetts
$34.3M +$2.43M +56,215 +5%
Geode Capital Management
5
Geode Capital Management
Massachusetts
$31.4M +$902K +20,855 +2%
AM
6
Atreides Management
Massachusetts
$30.1M +$11.8M +272,698 +35%
Nuveen
7
Nuveen
North Carolina
$27.7M +$5.83M +134,816 +16%
OAM
8
Oberweis Asset Management
Illinois
$24.1M +$7.36M +170,200 +26%
Goldman Sachs
9
Goldman Sachs
New York
$22.5M -$16.9M -391,820 -33%
EA
10
Emerald Advisers
Pennsylvania
$21.8M +$10.2M +236,385 +45%
AIC
11
AWM Investment Company
New York
$21.7M +$378K +8,750 +1%
UBS Group
12
UBS Group
Switzerland
$21.4M +$23.8M +550,829 +284%
Morgan Stanley
13
Morgan Stanley
New York
$20.3M +$16M +369,677 +110%
Arrowstreet Capital
14
Arrowstreet Capital
Massachusetts
$19.7M -$3.34M -77,255 -10%
First Trust Advisors
15
First Trust Advisors
Illinois
$19.7M +$9.71M +224,576 +49%
TAM
16
Telemark Asset Management
Massachusetts
$17.8M -$3.03M -70,100 -10%
Qube Research & Technologies (QRT)
17
Qube Research & Technologies (QRT)
United Kingdom
$17.2M +$14.8M +341,411 +133%
Dimensional Fund Advisors
18
Dimensional Fund Advisors
Texas
$15.5M +$2.97M +68,769 +15%
DCM
19
Driehaus Capital Management
Illinois
$14.4M -$31.1M -718,960 -59%
AG
20
Algert Global
California
$13.3M +$7.48M +172,891 +60%
NAMI
21
Nomura Asset Management International
Pennsylvania
$13.2M +$19.9M +459,786 New
D.E. Shaw & Co
22
D.E. Shaw & Co
New York
$12.8M -$13.4M -309,555 -41%
EMFAT
23
Emerald Mutual Fund Advisers Trust
Pennsylvania
$12.5M +$5.51M +127,509 +41%
Charles Schwab
24
Charles Schwab
California
$11.2M -$31.1K -719 -0.2%
RA
25
Royce & Associates
New York
$11.1M +$1.28M +29,489 +8%
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