AMSC
American Superconductor CorporaOpen28.81−0.79 −2.67%USD
NasdaqGS · as of Oct 13, 12:40 ET · 15m delay
Open
29.18
Prev close
29.60
Day range
28.3229.72
52-week range
24.8770.49
Volume
222.48K0.31×
Mkt cap
1.40B
P/E ttm
9.70
Fwd P/E
21.26
EPS ttm
2.97
Div yield
0.00%
Earnings
Aug 5, 2026
From 52w high
−59.14%
AMSC shareholders
AMSC Ownership
13F / N-PORT filings via Yahoo
Institutions
74.2%
76.9% of the float
Insiders
3.4%
officers and directors
Institutional holders
372
filing positions
Top 10 institutions
34.5%
8 adding · 2 trimming
Top Institutions
| Holder | % held | Shares | Value | Change | As of |
|---|---|---|---|---|---|
| Blackrock Inc. | 8.45% | 4.10M | $117.97M | +2.8% | Jun 30, 2026 |
| Vanguard Capital Management LLC | 4.20% | 2.03M | $58.60M | −0.3% | Jun 30, 2026 |
| Barrow, Hanley Mewhinney & Strauss, LLC | 3.52% | 1.70M | $49.08M | +49.5% | Jun 30, 2026 |
| UBS Group AG | 2.95% | 1.43M | $41.16M | +138.3% | Jun 30, 2026 |
| Vanguard Portfolio Management LLC | 2.93% | 1.42M | $40.87M | −17.1% | Jun 30, 2026 |
| State Street Corporation | 2.80% | 1.36M | $39.12M | +7.7% | Jun 30, 2026 |
| Goldman Sachs Group Inc | 2.67% | 1.29M | $37.28M | +82.4% | Jun 30, 2026 |
| Geode Capital Management, LLC | 2.57% | 1.24M | $35.81M | +6.3% | Jun 30, 2026 |
| First Trust Advisors LP | 2.41% | 1.17M | $33.66M | +50.1% | Jun 30, 2026 |
| Oberweis Asset Management Inc. | 2.04% | 987.50K | $28.44M | +16.2% | Jun 30, 2026 |
Top Funds
| Holder | % held | Shares | Value | Change | As of |
|---|---|---|---|---|---|
| VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund | 2.97% | 1.44M | $41.51M | −1.5% | Jun 30, 2026 |
| iShares Trust-iShares Russell 2000 ETF | 2.49% | 1.20M | $34.69M | +0.7% | Aug 31, 2026 |
| OBERWEIS FUNDS-Oberweis Micro-Cap Fund | 1.91% | 925.30K | $26.65M | +17.8% | Jun 30, 2026 |
| First TRT Exch-Trd Fd. II-First TRT NASDAQ Clean Edge Smart Grid Infra | 1.33% | 642.35K | $18.50M | +2.1% | Aug 31, 2026 |
| VANGUARD INDEX FUNDS-Vanguard Extended Market Index Fund | 1.13% | 546.98K | $15.76M | +2.9% | Jun 30, 2026 |
| Fidelity Salem Street Trust-Fidelity Small Cap Index Fund | 1.07% | 516.00K | $14.86M | +0.9% | Jul 31, 2026 |
| AMERICAN BEACON FUNDS-American Beacon Small Cap Value Fund | 1.02% | 495.43K | $14.27M | −1.9% | Jul 31, 2026 |
| iShares Trust-iShares Russell 2000 Growth ETF | 0.91% | 442.84K | $12.76M | +3.3% | Aug 31, 2026 |
| VANGUARD HORIZON FUNDS-Vanguard Strategic Equity Fund | 0.86% | 417.71K | $12.03M | −11.2% | Jun 30, 2026 |
| TIAA-CREF Funds-Nuveen Quant Small Cap Equity Fund | 0.69% | 333.68K | $9.61M | −1.9% | Jul 31, 2026 |
Institutions report quarterly, up to 45 days after the quarter ends, so these positions can be months old. Change compares the share count with the holder's previous filing. Insider transactions are on the overview page (INSD).