American Superconductor Ownership | Who Owns American Superconductor?
American Superconductor Ownership Summary
American Superconductor is owned by 78.12% institutional investors, 3.44% insiders, and 18.44% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 8.96% of AMSC shares. Vanguard MStar Total Stk Mkt Idx Invest is the top mutual fund, with 2.98% of its assets in American Superconductor shares.
AMSC Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | American Superconductor | 78.12% | 3.44% | 18.44% |
| Sector | Industrials Stocks | 67.76% | 16.49% | 15.75% |
| Industry | Electrical Equipment Stocks | 53.83% | 15.82% | 30.35% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Blackrock funding, inc. /de | 4.10M | 8.96% | $170.00M |
| Blackrock | 2.54M | 8.53% | $59.50M |
| Vanguard group | 3.53M | 8.02% | $101.50M |
| Vanguard capital management | 2.03M | 4.45% | $84.44M |
| Barrow hanley mewhinney & strauss | 1.70M | 3.73% | $70.73M |
| Ubs group | 1.43M | 3.13% | $59.32M |
| State street | 1.36M | 2.97% | $56.38M |
| Goldman sachs group | 1.29M | 2.83% | $53.72M |
| Geode capital management | 1.24M | 2.72% | $51.62M |
| First trust advisors lp | 1.17M | 2.56% | $48.50M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Awm investment company | 951.60K | 3.43% | $39.50M |
| Heights capital management | 340.10K | 3.33% | $12.48M |
| Palisades investment partners | 156.72K | 1.85% | $6.51M |
| Telemark asset management | 600.00K | 1.80% | $24.91M |
| Essex investment management | 221.93K | 1.21% | $9.21M |
| Ranger investment management | 405.27K | 1.06% | $16.82M |
| Covestor | 41.35K | 0.99% | $1.72M |
| Crawford fund management | 160.00K | 0.94% | $3.74M |
| Lumbard & kellner | 74.14K | 0.93% | $3.08M |
| Atreides management, lp | 771.50K | 0.89% | $45.82M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Blackrock | 2.54M | 0.00% | 1.80M |
| Ubs group | 1.43M | 0.01% | 829.27K |
| Goldman sachs group | 1.29M | 0.00% | 584.54K |
| Vanguard group | 3.53M | 0.00% | 576.83K |
| Barrow hanley mewhinney & strauss | 1.70M | 0.21% | 564.21K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Fuller & thaler asset management | - | - | -809.95K |
| Baillie gifford | 933.31K | 0.04% | -514.11K |
| Driehaus capital management | - | - | -499.98K |
| Macquarie group | - | - | -465.22K |
| Hood river capital management | - | - | -398.71K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Ranger investment management | 405.27K | 1.06% | 405.27K | $16.82M |
| Sixth street partners management company | 399.13K | 0.00% | 399.13K | $16.57M |
| Heights capital management | 340.10K | 3.33% | 340.10K | $12.48M |
| T. rowe price investment management | 306.18K | 0.01% | 306.18K | $12.71M |
| Silvercrest asset management group | 100.03K | 0.03% | 100.03K | $4.15M |
Sold Out
| Holder | Change |
|---|---|
| Tortoise investment management | -2.00 |
| Turning point benefit group | -2.00 |
| Central trust | -4.00 |
| Wealthtrak capital management | -5.00 |
| Stephens consulting | -20.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 30, 2026 | 289 | 12.02% | 35,717,015 | 7.70% | 78 | 1.37% | 177 | 13.46% | 76 | 22.58% |
| Mar 31, 2026 | 148 | -41.96% | 20,626,455 | -37.63% | 46 | 0.83% | 87 | -40.00% | 36 | -46.27% |
| Dec 31, 2025 | 165 | -44.26% | 22,561,639 | -31.00% | 51 | 0.73% | 90 | -47.06% | 46 | -42.50% |
| Sep 30, 2025 | 283 | 19.41% | 31,868,869 | 6.18% | 81 | 1.38% | 161 | 3.21% | 76 | 49.02% |
| Jun 30, 2025 | 247 | 18.75% | 32,547,640 | 18.09% | 83 | 1.56% | 159 | 57.43% | 54 | -19.40% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard MStar Total Stk Mkt Idx Invest | 1.44M | 2.98% | 725.00 |
| Vanguard Total Stock Mkt Idx Inv | 1.44M | 2.97% | -5.36K |
| Vanguard Morn Total Stk Mkt Idx Investor | 1.44M | 2.97% | -5.36K |
| Vanguard US Total Market Shares ETF | 1.11M | 2.82% | - |
| iShares Russell 2000 ETF | 1.20M | 2.47% | -21.22K |
| Oberweis Micro-Cap Growth | 925.30K | 1.91% | 140.10K |
| Delaware Ivy Small Cap Growth C | 681.45K | 1.73% | 557.59K |
| Hood River Small-Cap Growth Instl | 756.13K | 1.67% | -59.08K |
| Oberweis Micro-Cap | 785.20K | 1.65% | - |
| First Trust NASDAQ® Cln Edge®StGidIfsETF | 626.89K | 1.29% | 1.93K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Jun 11, 2026 | Dambier Laura A. | - | Sell | $150.52K |
| Jun 11, 2026 | Kosiba John W JR | SVP, CFO & Treasurer | Sell | $65.98K |
| Jun 11, 2026 | Kosiba John W JR | SVP, CFO & Treasurer | Sell | $187.60K |
| Jun 11, 2026 | McGahn Daniel P | Chairman, President and CEO | Sell | $174.46K |
| Jun 11, 2026 | McGahn Daniel P | Chairman, President and CEO | Sell | $429.05K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q2 | - | 9 |
| 2026 Q1 | - | 1 |
| 2025 Q3 | - | 6 |
| 2025 Q2 | - | 12 |
| 2024 Q4 | - | 1 |
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