American Superconductor Corp /De/ (AMSC) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

44,939,000Shares Outstanding
32,781,804Shares held by institutions
$1,081,799,532Value of institutional holdings
72.95%Institutional ownership %
11.08%Shares Changed QoQ
234No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

American Superconductor Corp /De/ (NASDAQ:AMSC) appears in 234 institutional 13F filings for the quarter ending December 2025.

240 Institutional Holders

32,781,804 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
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
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
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
Nuveen, LLC 31 Mar, 2026 1,020,947 59,979 6.24% $34,559,056.00
OBERWEIS ASSET MANAGEMENT INC/ 31 Mar, 2026 849,900 14,000 1.67% $28,769,115.00
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
EMERALD ADVISERS, LLC 31 Mar, 2026 757,404 -164 -0.02% $25,638,125.00
Goldman Sachs Group Inc 31 Mar, 2026 709,504 -855,070 -54.65% $24,016,711.00
DIMENSIONAL FUND ADVISORS LP 31 Mar, 2026 658,297 118,044 21.85% $22,277,858.00
Morgan Stanley 31 Mar, 2026 633,841 -71,601 -10.15% $21,455,567.00
Telemark Asset Management, LLC 31 Mar, 2026 600,000 -19,900 -3.21% $20,310,000.00
UBS Group AG 31 Mar, 2026 599,821 -144,742 -19.44% $20,303,941.00
D. E. Shaw & Co., Inc. 31 Mar, 2026 567,574 124,426 28.08% $19,212,380.00
ROYCE & ASSOCIATES LP 31 Mar, 2026 542,778 155,709 40.23% $18,373,035.00
Legal & General Group Plc 31 Mar, 2026 530,131 252,105 90.68% $17,944,934.00