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American Superconductor

Name Holding Trade Value Shares
Change
Change in
Stake
AIC
1
AWM Investment Company
New York
$4.18M +$2.09M +547,888 +91%
Vanguard Group
2
Vanguard Group
Pennsylvania
$2.03M +$152K +39,828 +8%
TAM
3
Telemark Asset Management
Massachusetts
$1.98M
Renaissance Technologies
4
Renaissance Technologies
New York
$1.85M -$174K -45,700 -8%
RA
5
Royce & Associates
New York
$1.34M
AAP
6
Ardsley Advisory Partners
Connecticut
$1.14M -$5.8M -1,520,623 -83%
BlackRock
7
BlackRock
New York
$966K +$8.73K +2,287 +0.9%
WAM
8
Wolverine Asset Management
Illinois
$861K +$211K +55,375 +30%
Invesco
9
Invesco
Georgia
$584K +$136K +35,753 +29%
Jacobs Levy Equity Management
10
Jacobs Levy Equity Management
New Jersey
$427K +$449K +117,522 New
Millennium Management
11
Millennium Management
New York
$407K -$318K -83,290 -43%
BCM
12
Bridgeway Capital Management
Texas
$400K -$95.4K -25,000 -19%
Geode Capital Management
13
Geode Capital Management
Massachusetts
$342K
AFM
14
Anson Funds Management
Texas
$321K +$338K +88,531 New
Simplex Trading
15
Simplex Trading
Illinois
$301K +$317K +83,094 New
Dimensional Fund Advisors
16
Dimensional Fund Advisors
Texas
$251K
WS
17
Wedbush Securities
California
$209K +$43.7K +11,453 +25%
Susquehanna International Group
18
Susquehanna International Group
Pennsylvania
$204K +$134K +35,229 +167%
D.E. Shaw & Co
19
D.E. Shaw & Co
New York
$196K +$95.8K +25,110 +87%
Northern Trust
20
Northern Trust
Illinois
$155K +$1.25K +327 +0.8%
First Manhattan
21
First Manhattan
New York
$124K +$1.34K +350 +1%
Bank of New York Mellon
22
Bank of New York Mellon
New York
$120K +$126K +33,011 New
Russell Investments Group
23
Russell Investments Group
United Kingdom
$102K +$52.3K +13,700 +99%
Citadel Advisors
24
Citadel Advisors
Florida
$92K +$97K +25,418 New
California Public Employees Retirement System
25
California Public Employees Retirement System
California
$82K