American Superconductor CORP /DE/ Schedule 13G passive stakes
Filed when an investor crosses five percent without intending to seek control — the passive counterpart to a 13D.
NASDAQ
Vanguard Capital Management has disclosed a beneficial ownership of 4.93% in American Superconductor Corp. as of June 30, 2026.
NASDAQ
The Vanguard Group reported a 0% beneficial ownership in American Superconductor Corp following an internal realignment, indicating a full divestment of its direct stake.
NASDAQ
The Vanguard Group updated its beneficial ownership in American Superconductor Corp, reporting a 7.4% stake and detailing an internal realignment affecting future reporting.
NASDAQ
BlackRock, Inc. has filed an amended Schedule 13G, reporting a 7.1% beneficial ownership stake in American Superconductor Corp as of March 31, 2025.
NASDAQ
Baillie Gifford & Co, a UK-based investment adviser, has filed an amended Schedule 13G disclosing a 4.18% passive beneficial ownership stake in American Superconductor Corp as of December 31, 2024.
NASDAQ
SCHEDULE 13G/A: BlackRock Amends Passive Stake in American Superconductor, Disclosing 8.7% Ownership
BlackRock, Inc. has filed an amended Schedule 13G, revealing a passive beneficial ownership of 8.7% of American Superconductor Corp.'s common stock as of December 31, 2024.