AMERICAN SUPERCONDUCTOR CORP /DE/ - Common Stock (AMSC)

Historical Holders from Q1 2015 to Q3 2025

Symbol
AMSC on Nasdaq
CUSIP
030111207
Type / Class
Equity / Common Stock
Shares outstanding
39.4M
All holders as of September 30, 2025
Q3 2025
Total 13F shares, excl. options
32.7M
Holdings value
$1.94B
% of all portfolios
0.004%
Grand Portfolio weight change
+0%
Number of holders
268
Number of buys
159
Number of sells
-110
Average Value change %
0%
Average buys %
+0.001%
Average sells %
-0.003%
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of AMERICAN SUPERCONDUCTOR CORP /DE/ - Common Stock (AMSC)

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
BlackRock, Inc. 7.1% -17.8% $52.7M -$11.8M 2.8M -18.3% BlackRock, Inc. Mar 31, 2025
BAILLIE GIFFORD & CO 4.2% -21.7% $31M -$8.59M 1.65M -21.7% BAILLIE GIFFORD & CO Dec 31, 2024

Institutional Holders of AMERICAN SUPERCONDUCTOR CORP /DE/ - Common Stock (AMSC)

Period Reported Shares, Excl. Options Value, Excl. Options Change Price Investors
2025 Q3 32.7M $1.94B +$34.9M $59.39 268
2025 Q2 32.7M $1.2B +$198M $36.69 229
2025 Q1 27.6M $500M -$3.06M $18.14 189
2024 Q4 27.5M $678M +$7.04M $24.63 189
2024 Q3 27.2M $642M -$3.18M $23.60 176
2024 Q2 27.1M $633M +$101M $23.39 158
2024 Q1 23.1M $312M +$91.1M $13.51 131
2023 Q4 55.4K $617K -$333K $11.14 1
2023 Q3 13.2M $99.7M +$1.95M $7.55 70
2023 Q2 13.1M $81.9M -$222K $6.26 73
2023 Q1 13.1M $64.6M +$438K $4.91 71
2022 Q4 13.1M $48.2M -$3.09M $3.68 71
2022 Q3 13.5M $59.1M +$2.29M $4.38 68
2022 Q2 13.2M $68.1M -$12.8M $5.18 79
2022 Q1 15.2M $116M -$11.7M $7.61 92
2021 Q4 15.8M $172M -$7.38M $10.88 94
2021 Q3 16.3M $237M +$2.77M $14.58 91
2021 Q2 16M $278M +$770K $17.39 94
2021 Q1 15.8M $299M -$30.7M $18.96 98
2020 Q4 16.8M $393M +$90.5M $23.42 97
2020 Q3 13.5M $195M +$34.7M $14.48 79
2020 Q2 11.2M $91M +$4.92M $8.13 65
2020 Q1 10.7M $58.3M +$777K $5.48 64
2019 Q4 10.5M $82M +$2.83M $7.85 64
2019 Q3 10.1M $79M +$1.53M $7.84 66
2019 Q2 9.79M $90.8M +$2.65M $9.28 67
2019 Q1 9.15M $118M +$37.9M $12.86 70
2018 Q4 6.25M $69.7M +$13.3M $11.15 60
2018 Q3 5.05M $35.1M +$2.87M $6.95 51
2018 Q2 4.6M $32.2M -$2.86M $7.00 44
2018 Q1 5.06M $29.4M -$398K $5.82 47
2017 Q4 5.31M $19.3M -$2.64M $3.63 45
2017 Q3 5.96M $27.1M -$3.63M $4.54 44
2017 Q2 6.73M $31.1M +$9.61M $4.62 48
2017 Q1 4.41M $30.3M +$6.32M $6.86 55
2016 Q4 4.18M $30.8M +$1.72M $7.37 50
2016 Q3 3.93M $27.6M -$2.58M $7.01 54
2016 Q2 4.21M $35.5M +$8.72M $8.44 61
2016 Q1 3.2M $24.3M +$2.36M $7.60 46
2015 Q4 2.87M $18.3M +$1.24M $6.37 33
2015 Q3 2.77M $12M -$205K $4.33 36
2015 Q2 2.75M $14.4M +$8.97M $5.23 40
2015 Q1 865K $5.57M +$5.57M $6.43 33