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EI
EAM Investors’s
American Superconductor
AMSC
Stock Holding History
EAM Investors’s Portfolio
AMSC Stock Details
AMSC Fund Activity
Bought
Maintained
Sold
Quarter
Market Value
Status
Shares
Change in
Stake
Trade Value
Portfolio Weight
Portfolio Position
2025
Q4
–
Sell
-83,977
Closed
-$4.91M
–
271
2025
Q3
$4.91M
Buy
83,977
+8,683
+12%
+$434K
0.56%
65
2025
Q2
$2.76M
Buy
+75,294
New
+$1.85M
0.42%
120
2025
Q1
–
Sell
-18,967
Closed
-$467K
–
256
2024
Q4
$467K
Sell
18,967
-114,218
-86%
-$3.15M
0.07%
248
2024
Q3
$3.14M
Sell
133,185
-70,741
-35%
-$1.63M
0.47%
118
2024
Q2
$4.77M
Buy
203,926
+140,828
+223%
+$2.33M
0.78%
17
2024
Q1
$852K
Buy
63,098
+3,560
+6%
+$44.2K
0.13%
195
2023
Q4
$663K
Sell
59,538
-96,619
-62%
-$817K
0.12%
201
2023
Q3
$1.18M
Sell
156,157
-120,117
-43%
-$997K
0.23%
202
2023
Q2
$1.73M
Buy
+276,274
New
+$1.35M
0.32%
141
2021
Q1
–
Sell
-76,895
Closed
-$1.8M
–
333
2020
Q4
$1.8M
Sell
76,895
-95,906
-56%
-$1.7M
0.3%
155
2020
Q3
$2.5M
Buy
+172,801
New
+$1.93M
0.59%
34
2019
Q2
–
Sell
-237,002
Closed
-$3.05M
–
252
2019
Q1
$3.05M
Sell
237,002
-133,688
-36%
-$1.82M
0.75%
21
2018
Q4
$4.13M
Buy
+370,690
New
+$3.17M
1.12%
1
2016
Q3
–
Sell
-105,870
Closed
-$894K
–
297
2016
Q2
$894K
Buy
+105,870
New
+$987K
0.13%
266
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$5.7T AUM
30.48%
1-Year Est. Return
Vanguard Group
Malvern, Pennsylvania
$6.9T AUM
27.45%
1-Year Est. Return
Baillie Gifford & Co
Edinburgh, United Kingdom
$97.9B AUM
20.73%
1-Year Est. Return
State Street
Boston, Massachusetts
$2.9T AUM
29.55%
1-Year Est. Return
Geode Capital Management
Boston, Massachusetts
$1.61T AUM
30.72%
1-Year Est. Return
AM
Atreides Management
Boston, Massachusetts
$4.1B AUM
78.34%
1-Year Est. Return
N
Nuveen
Charlotte, North Carolina
$369B AUM
31.66%
1-Year Est. Return
OAM
Oberweis Asset Management
Lisle, Illinois
$3.39B AUM
105.5%
1-Year Est. Return
Goldman Sachs
New York
$761B AUM
31.28%
1-Year Est. Return
EA
Emerald Advisers
Leola, Pennsylvania
$3.16B AUM
109.58%
1-Year Est. Return
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Fund Insights
Common Fund Bets
See what stocks and ETFs funds are collectively bullish/bearish on
Largest Fund Trades
Explore the largest stock and ETF buys and sells made by funds
High Conviction Trades
Discover high conviction trades that caused a significant change in a fund's stake in a stock
Fund Manager Portfolios
Gain insights from the world’s largest funds and super investors
WSR Indexes
Fund Manager Index
Stock index based on fund manager consensus updated each quarter
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