American Superconductor Corp /De/ (AMSC) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

44,939,000Shares Outstanding
33,186,479Shares held by institutions
$1,405,115,521Value of institutional holdings
73.85%Institutional ownership %
24.43%Shares Changed QoQ
240No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

American Superconductor Corp /De/ (NASDAQ:AMSC) showed up in the 13F filings of 234 institutional investors as of December 2025.

440 Institutional Holders

33,186,479 Total Shares Held
Download Data
Owner Name Date Shares Held Change (QoQ) Change (%) Value (USD)
BlackRock, Inc. 31 Mar, 2026 3,982,650 232,247 6.19% $134,812,704.00
BlackRock, Inc. 31 Mar, 2026 3,750,403 121,107 3.34% $107,936,611.00
VANGUARD GROUP INC 31 Mar, 2026 3,526,632 576,831 19.55% $101,496,470.00
VANGUARD CAPITAL MANAGEMENT LLC 31 Mar, 2026 2,039,468 2,039,468 0.00% $69,035,992.00
VANGUARD PORTFOLIO MANAGEMENT LLC 31 Mar, 2026 1,711,677 1,711,677 0.00% $57,940,266.00
Goldman Sachs Group Inc 31 Mar, 2026 1,564,574 390,467 33.26% $45,028,440.00
BAILLIE GIFFORD & CO 31 Mar, 2026 1,506,841 79,509 5.57% $43,366,884.00
BAILLIE GIFFORD & CO 31 Mar, 2026 1,447,419 -59,422 -3.94% $48,995,134.00
State Street Corp 31 Mar, 2026 1,261,071 68,978 5.79% $42,687,253.00
State Street Corp 31 Mar, 2026 1,192,093 56,215 4.95% $34,308,437.00
GEODE CAPITAL MANAGEMENT, LLC 31 Mar, 2026 1,169,152 78,442 7.19% $39,583,990.00
BARROW HANLEY MEWHINNEY & STRAUSS LLC 31 Mar, 2026 1,139,793 1,139,793 0.00% $38,581,993.00
GEODE CAPITAL MANAGEMENT, LLC 31 Mar, 2026 1,090,710 20,855 1.95% $31,396,276.00
Atreides Management, LP 31 Mar, 2026 1,044,193 272,698 35.35% $30,051,875.00
Nuveen, LLC 31 Mar, 2026 1,020,947 59,979 6.24% $34,559,056.00
Nuveen, LLC 31 Mar, 2026 960,968 134,816 16.32% $27,656,659.00
OBERWEIS ASSET MANAGEMENT INC/ 31 Mar, 2026 849,900 14,000 1.67% $28,769,115.00
OBERWEIS ASSET MANAGEMENT INC/ 31 Mar, 2026 835,900 170,200 25.57% $24,057,202.00
AWM Investment Company, Inc. 31 Mar, 2026 801,604 47,384 6.28% $27,134,295.00
FIRST TRUST ADVISORS LP 31 Mar, 2026 778,268 95,301 13.95% $26,344,371.00