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

Historical Holders from Q1 2015 to Q3 2025

Symbol
AMSC on Nasdaq
Type / Class
Equity / Common Stock
Shares outstanding
39,430,451
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares, excl. options
32,697,509
Holdings value
$1,940,893,113
% of all portfolios
0%
Number of holders
268
Number of buys
159
Number of sells
-110
Average buys %
+0%
Average sells %
-0%
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% -18% $56,355,183 -$12,648,303 2,799,562 -18% BlackRock, Inc. 31 Mar 2025
BAILLIE GIFFORD & CO 4.2% -22% $33,210,273 -$9,191,459 1,649,790 -22% BAILLIE GIFFORD & CO 31 Dec 2024

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

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price Investors
2025 Q3 32,697,509 $1,940,893,113 +$34,201,198 $59.39 268
2025 Q2 32,674,926 $1,198,934,947 +$198,037,144 $36.69 228
2025 Q1 27,561,821 $500,035,162 -$3,552,043 $18.14 189
2024 Q4 27,521,153 $678,105,741 +$7,292,176 $24.63 190
2024 Q3 27,198,756 $641,943,684 -$3,178,845 $23.6 170
2024 Q2 27,193,223 $636,078,474 +$100,747,508 $23.39 154
2024 Q1 23,096,288 $312,018,202 +$95,933,897 $13.51 127
2023 Q4 16,047,561 $178,757,920 +$32,158,997 $11.14 98
2023 Q3 13,211,392 $99,745,426 +$1,953,457 $7.55 71
2023 Q2 13,090,639 $81,943,982 -$222,130 $6.26 75
2023 Q1 13,147,722 $64,556,424 +$440,557 $4.91 73
2022 Q4 13,144,355 $48,365,833 -$3,622,597 $3.68 74
2022 Q3 13,931,654 $61,023,588 +$2,317,476 $4.38 74
2022 Q2 13,250,274 $68,637,400 -$15,464,888 $5.18 81
2022 Q1 15,674,969 $119,452,725 -$11,388,520 $7.61 96
2021 Q4 16,381,893 $178,146,496 -$7,328,930 $10.88 99
2021 Q3 16,697,055 $242,925,738 +$3,477,984 $14.58 93
2021 Q2 16,351,935 $284,837,911 +$433,500 $17.39 96
2021 Q1 16,184,271 $306,573,897 -$32,714,323 $18.96 99
2020 Q4 17,342,165 $405,527,098 +$91,556,015 $23.42 101
2020 Q3 13,877,546 $201,594,232 +$35,621,311 $14.48 83
2020 Q2 11,598,459 $94,116,585 +$5,240,209 $8.13 71
2020 Q1 10,971,893 $59,960,136 +$1,361,714 $5.48 68
2019 Q4 10,684,371 $83,515,324 +$3,200,524 $7.85 68
2019 Q3 10,234,098 $80,230,336 +$1,185,030 $7.84 70
2019 Q2 10,007,054 $92,789,328 +$1,622,214 $9.28 73
2019 Q1 9,317,362 $119,925,633 +$36,933,200 $12.86 73
2018 Q4 6,445,209 $71,567,193 +$14,062,538 $11.15 64
2018 Q3 5,067,020 $35,211,021 +$3,132,656 $6.95 53
2018 Q2 4,615,466 $32,304,021 -$2,867,788 $7 47
2018 Q1 5,080,052 $29,559,017 -$388,303 $5.82 49
2017 Q4 5,308,068 $19,266,011 -$2,642,975 $3.63 46
2017 Q3 5,962,544 $27,066,014 -$3,626,838 $4.54 44
2017 Q2 6,750,348 $31,197,707 +$9,049,547 $4.62 50
2017 Q1 4,500,681 $30,874,304 +$6,331,488 $6.86 57
2016 Q4 4,268,198 $31,455,449 +$1,781,169 $7.37 54
2016 Q3 4,016,134 $28,150,062 -$2,544,337 $7.01 53
2016 Q2 4,292,982 $36,231,186 +$8,919,797 $8.44 61
2016 Q1 3,202,209 $24,328,140 +$2,354,492 $7.6 47
2015 Q4 2,921,500 $18,608,000 +$1,235,462 $6.37 33
2015 Q3 2,774,552 $12,034,009 +$392,286 $4.33 37
2015 Q2 62,188 $321,000 -$203,809 $4.09 8
2015 Q1 866,078 $5,573,911 +$5,573,911 $6.43 35