AMERICAN SUPERCONDUCTOR CORP (AMSC) Institutional Ownership and Insiders Activity
AMERICAN SUPERCONDUCTOR CORP (AMSC) is widely held by institutional investors, with 267 firms reporting positions valued at approximately $1.44B based on SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is the largest disclosed holder, reporting approximately $170.00M in AMSC holdings in its latest filing.
Recent insider activity includes 1 tracked Form 4 transaction over the last three months, reflecting ongoing executive and director trading activity.
Institutional Holders
267
Total Reported Value
$1.44B
Largest Holder
Blackrock, Inc.
Largest Position
$170.00M
Insider Transactions (90d)
1
Latest Filing Quarter
Q2 2026
New Institutional Positions
65
Funds Exiting Positions
41
Top Institutional Owners
View allInvestorReported Balance
- Blackrock, Inc.$170.00M
- Vanguard Capital Management Llc$84.44M
- Barrow Hanley Mewhinney & Strauss Llc$70.73M
- Ubs Group Ag$59.32M
- Vanguard Portfolio Management Llc$58.90M
Related AMSC Institutional Insights:
- AMSC 13F Institutional Holders
- AMSC Superinvestors
- AMSC Institutional Ownership Changes
- Industrials Sector Institutional Ownership
- Industrials Sector Portfolio Overlap
- Institutional Portfolio Overlap & Shared Holdings
- Most Bought Industrials Stocks By Institutional Investors
- Most Sold Industrials Stocks By Institutional Investors
- AMSC Insider Trading & SEC Form 4 Activity
- AMSC Articles
- Top Institutional Investor Stock Rankings