American Superconductor Ownership | Who Owns American Superconductor?
American Superconductor Ownership Summary
American Superconductor is owned by 83.72% institutional investors, 3.84% insiders, and 12.44% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 8.80% of AMSC shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 2.88% of its assets in American Superconductor shares.
AMSC Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | American Superconductor | 83.72% | 3.84% | 12.44% |
| Sector | Industrials Stocks | 64.11% | 12.70% | 23.19% |
| Industry | Industrial Machinery Stocks | 74.87% | 9.25% | 15.88% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Blackrock funding, inc. /de | 3.42M | 8.80% | $125.48M |
| Blackrock | 2.54M | 8.53% | $59.50M |
| Vanguard group | 2.22M | 6.02% | $54.75M |
| Baillie gifford | 1.65M | 4.46% | $40.63M |
| Awm investment company | 1.56M | 4.01% | $57.18M |
| Hood river capital management | 1.17M | 3.01% | $42.89M |
| Atreides management, lp | 1.10M | 2.84% | $40.52M |
| Macquarie group | 1.04M | 2.81% | $25.62M |
| Morgan stanley | 806.42K | 2.70% | $18.86M |
| State street | 909.29K | 2.41% | $22.40M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Awm investment company | 1.56M | 6.41% | $57.18M |
| Andrew hill investment advisors | 152.78K | 4.51% | $5.61M |
| Heights capital management | 340.10K | 3.33% | $12.48M |
| Telemark asset management | 690.00K | 2.30% | $25.32M |
| Palisades investment partners | 140.50K | 2.25% | $5.15M |
| Essex investment management | 429.88K | 1.90% | $10.59M |
| Lisanti capital growth | 180.75K | 1.84% | $6.63M |
| Lumbard & kellner | 72.44K | 1.16% | $2.66M |
| Atreides management, lp | 1.10M | 1.12% | $40.52M |
| Oberweis asset management inc/ | 668.20K | 1.07% | $24.52M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Blackrock | 2.54M | 0.00% | 1.80M |
| Emerald advisers | 500.05K | 0.67% | 461.33K |
| Wellington management group llp | 461.23K | 0.00% | 461.23K |
| Ubs group | 425.88K | 0.00% | 365.05K |
| Heights capital management | 340.10K | 3.33% | 340.10K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Baillie gifford | 1.65M | 0.03% | -456.61K |
| Invesco | 197.78K | 0.00% | -340.62K |
| Qube research | 130.12K | 0.00% | -279.29K |
| Cm management | - | - | -250.00K |
| Millennium management | 23.07K | 0.00% | -239.13K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Wellington management group llp | 461.23K | 0.00% | 461.23K | $11.36M |
| Heights capital management | 340.10K | 3.33% | 340.10K | $12.48M |
| Ghisallo capital management | 200.00K | 0.20% | 200.00K | $7.34M |
| Lisanti capital growth | 180.75K | 1.84% | 180.75K | $6.63M |
| Jump financial | 128.63K | 0.05% | 128.63K | $4.72M |
Sold Out
| Holder | Change |
|---|---|
| Stephens consulting | -20.00 |
| North star investment management | -21.00 |
| Hexagon capital partners | -30.00 |
| Parkside financial bank & trust | -40.00 |
| Creative planning | -49.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 30, 2025 | 247 | 18.75% | 32,547,640 | 18.09% | 83 | 1.56% | 159 | 57.43% | 54 | -19.40% |
| Mar 31, 2025 | 206 | -1.90% | 27,597,658 | 0.35% | 73 | 1.37% | 100 | -16.67% | 67 | 34.00% |
| Dec 31, 2024 | 206 | 9.57% | 25,842,142 | -4.65% | 68 | 1.28% | 116 | 17.17% | 50 | -3.85% |
| Sep 30, 2024 | 187 | 9.36% | 27,101,669 | 0.11% | 73 | 1.27% | 98 | 1.03% | 53 | 29.27% |
| Jun 30, 2024 | 170 | 20.57% | 27,071,410 | 17.20% | 90 | 1.44% | 97 | 14.12% | 41 | 64.00% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard Total Stock Mkt Idx Inv | 1.30M | 2.88% | -29.07K |
| Vanguard US Total Market Shares ETF | 1.11M | 2.82% | - |
| iShares Russell 2000 ETF | 903.33K | 2.00% | -17.22K |
| 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 Growth | 634.40K | 1.57% | - |
| Oberweis Micro-Cap | 634.40K | 1.57% | - |
| Edinburgh Worldwide Ord | 661.10K | 1.46% | - |
| AZ InvestEd Ivy Small Cap Growth E | 529.30K | 1.17% | -127.49K |
| Macquarie Small Cap Growth C | 529.30K | 1.17% | -127.49K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Aug 08, 2025 | House Arthur H | - | Sell | $494.08K |
| Aug 04, 2022 | Klein Margaret D. | - | Buy | $2.78K |
| Aug 04, 2025 | McGahn Daniel P | Chairman, President and CEO | Sell | $1.53M |
| Aug 04, 2025 | McGahn Daniel P | Chairman, President and CEO | Sell | $3.97M |
| Aug 04, 2025 | Kosiba John W JR | SVP, CFO & Treasurer | Sell | $1.86M |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q3 | - | 6 |
| 2025 Q2 | - | 12 |
| 2024 Q4 | - | 1 |
| 2024 Q3 | - | - |
| 2024 Q2 | - | 6 |
AMSC Ownership FAQ
Try Tickergate Pro Free
Customize Everything. 100% Flexibility. Fast and Easy to Use (No code or Excel Needed)
Customize your own personal stocks lists, views and charts
Choose from hundreds of fields, up to 15 years of history
Conduct deep comparison analysis
Discover trending investment themes
Find your next best investment
Research stocks using tools