AMERICAN SUPERCONDUCTOR CORP /DE/
AMSC- Exchange
- Nasdaq
- Industry
- Motors & Generators
- SEC CIK
- 0000880807
13F holders, Q2 2026
Positions as of Jun 30, 2026.
Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 277
- +32 vs. Q1 2026
- Shares held
- 35.43M
- +2.24M (+6.8%) vs. Q1 2026
- Total value
- $1.47B
- +$346.94M (+30.9%) vs. Q1 2026
Compare with Q1 2026: new holders and sold out
Holders over time
101 in Q3 2021 → 277 in Q2 2026
Institutions
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 4,095,371 | $170M | 0.00% | +112,721+2.8% | Added |
| VANGUARD CAPITAL MANAGEMENT LLC | 2,034,219 | $84.44M | 0.00% | −5,249−0.3% | Reduced |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC | 1,704,006 | $70.73M | 0.21% | +564,213+49.5% | Added |
| UBS Group AG | 1,429,090 | $59.32M | 0.01% | +829,269+138.3% | Added |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1,418,863 | $58.9M | 0.00% | −292,814−17.1% | Reduced |
| STATE STREET CORP | 1,358,225 | $56.38M | 0.00% | +97,154+7.7% | Added |
| GOLDMAN SACHS GROUP INC | 1,294,047 | $53.72M | 0.01% | +584,543+82.4% | Added |
| GEODE CAPITAL MANAGEMENT, LLC | 1,243,198 | $51.62M | 0.00% | +74,046+6.3% | Added |
| FIRST TRUST ADVISORS LP | 1,168,424 | $48.5M | 0.03% | +390,156+50.1% | Added |
| OBERWEIS ASSET MANAGEMENT INC/ | 987,500 | $40.99M | 0.85% | +137,600+16.2% | Added |
| AWM Investment Company, Inc. | 951,604 | $39.5M | 3.43% | +150,000+18.7% | Added |
| BAILLIE GIFFORD & CO | 933,308 | $38.74M | 0.04% | −514,111−35.5% | Reduced |
| EMERALD ADVISERS, LLC | 843,956 | $35.03M | 0.82% | +86,552+11.4% | Added |
| Legal & General Group Plc | 756,863 | $31.42M | 0.01% | +226,732+42.8% | Added |
| DIMENSIONAL FUND ADVISORS LP | 645,991 | $26.81M | 0.00% | −12,306−1.9% | Reduced |
| MORGAN STANLEY | 635,833 | $26.39M | 0.00% | +1,992+0.3% | Added |
| Nuveen, LLC | 628,406 | $26.09M | 0.01% | −392,541−38.4% | Reduced |
| Telemark Asset Management, LLC | 600,000 | $24.91M | 1.80% | 00.0% | Unchanged |
| ROYCE & ASSOCIATES LP | 555,821 | $23.07M | 0.19% | +13,043+2.4% | Added |
| EMERALD MUTUAL FUND ADVISERS TRUST | 538,955 | $22.37M | 0.79% | +100,080+22.8% | Added |
| NORTHERN TRUST CORP | 433,792 | $18.01M | 0.00% | +40,568+10.3% | Added |
| Ranger Investment Management, L.P. | 405,266 | $16.82M | 1.06% | +405,266 | New |
| Stephens Investment Management Group LLC | 402,762 | $16.72M | 0.18% | +94,247+30.5% | Added |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 399,125 | $16.57M | 0.00% | +13,711+3.6% | Added |
| PANAGORA ASSET MANAGEMENT INC | 375,515 | $15.59M | 0.05% | +119,123+46.5% | Added |
| D. E. Shaw & Co., Inc. | 366,845 | $15.23M | 0.01% | −200,729−35.4% | Reduced |
| BNP PARIBAS ARBITRAGE, SA | 366,437 | $15.21M | 0.01% | −70,250−16.1% | Reduced |
| ALGERT GLOBAL LLC | 353,832 | $14.69M | 0.17% | −136,139−27.8% | Reduced |
| PRICE T ROWE ASSOCIATES INC /MD/ | 343,867 | $14.27M | 0.00% | +285,255+486.7% | Added |
| VANGUARD FIDUCIARY TRUST CO | 337,929 | $14.03M | 0.00% | +11,887+3.6% | Added |
| T. Rowe Price Investment Management, Inc. | 306,182 | $12.71M | 0.01% | +306,182 | New |
| HRT FINANCIAL LP | 298,420 | $12.39M | 0.02% | +298,420 | New |
| Qube Research & Technologies Ltd | 250,573 | $10.4M | 0.01% | −78,840−23.9% | Reduced |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 235,235 | $9.76M | 0.01% | +173,421+280.6% | Added |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 230,903 | $9.58M | 0.00% | −215,849−48.3% | Reduced |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 221,933 | $9.21M | 1.21% | −5,625−2.5% | Reduced |
| AQR CAPITAL MANAGEMENT LLC | 194,477 | $8.07M | 0.00% | +9,722+5.3% | Added |
| Invesco Ltd. | 180,660 | $7.5M | 0.00% | −60,132−25.0% | Reduced |
| Russell Investments Group, Ltd. | 171,764 | $7.13M | 0.01% | +134,400+359.7% | Added |
| JANE STREET GROUP, LLC | 170,319 | $7.07M | 0.00% | +170,319 | New |
| MACKENZIE FINANCIAL CORP | 164,450 | $6.83M | 0.01% | +86,908+112.1% | Added |
| ArrowMark Colorado Holdings LLC | 159,432 | $6.62M | 0.28% | +24,000+17.7% | Added |
| Baird Financial Group, Inc. | 157,203 | $6.53M | 0.01% | −6,055−3.7% | Reduced |
| Palisades Investment Partners, LLC | 156,720 | $6.51M | 1.85% | +4,144+2.7% | Added |
| JPMORGAN CHASE & CO | 149,502 | $6.04M | 0.00% | +12,657+9.2% | Added |
| Bank of New York Mellon Corp | 143,968 | $5.98M | 0.00% | +9,178+6.8% | Added |
| Allspring Global Investments Holdings, LLC | 130,622 | $5.21M | 0.01% | −18,979−12.7% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 121,128 | $5.03M | 0.01% | +72,577+149.5% | Added |
| RAYMOND JAMES FINANCIAL INC | 118,801 | $4.93M | 0.00% | −5,153−4.2% | Reduced |
| AMERIPRISE FINANCIAL INC | 111,856 | $4.64M | 0.00% | +49,520+79.4% | Added |
| GMT CAPITAL CORP | 108,066 | $4.49M | 0.23% | 00.0% | Unchanged |
| BANK OF AMERICA CORP /DE/ | 106,216 | $4.41M | 0.00% | −103,235−49.3% | Reduced |
| Toroso Investments, LLC | 101,341 | $4.21M | 0.01% | +57,972+133.7% | Added |
| MILLENNIUM MANAGEMENT LLC | 100,762 | $4.18M | 0.00% | −814−0.8% | Reduced |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | 100,026 | $4.15M | 0.03% | +100,026 | New |
| Holocene Advisors, LP | 95,716 | $3.97M | 0.01% | +83,588+689.2% | Added |
| Defiance ETFs, LLC | 99,395 | $3.97M | 0.06% | +57,168+135.4% | Added |
| UBS ASSET MANAGEMENT AMERICAS INC | 91,267 | $3.79M | 0.00% | +2,881+3.3% | Added |
| TWO SIGMA INVESTMENTS, LP | 90,340 | $3.75M | 0.00% | −78,676−46.5% | Reduced |
| Swiss National Bank | 88,600 | $3.68M | 0.00% | −500−0.6% | Reduced |
| ALPS ADVISORS INC | 86,387 | $3.59M | 0.02% | −174−0.2% | Reduced |
| WELLINGTON MANAGEMENT GROUP LLP | 85,244 | $3.54M | 0.00% | +85,244 | New |
| SEI INVESTMENTS CO | 85,215 | $3.54M | 0.00% | −139,221−62.0% | Reduced |
| WELLS FARGO & COMPANY/MN | 83,306 | $3.46M | 0.00% | +25,148+43.2% | Added |
| RICE HALL JAMES & ASSOCIATES, LLC | 78,620 | $3.26M | 0.16% | +31,506+66.9% | Added |
| Lumbard & Kellner, LLC | 74,139 | $3.08M | 0.93% | +470+0.6% | Added |
| NEW YORK STATE COMMON RETIREMENT FUND | 72,900 | $3.03M | 0.00% | +2,500+3.6% | Added |
| Balyasny Asset Management LLC | 68,847 | $2.86M | 0.01% | −75,297−52.2% | Reduced |
| BROWN CAPITAL MANAGEMENT LLC | 68,156 | $2.83M | 0.57% | +68,156 | New |
| CAMPBELL NEWMAN ASSET MANAGEMENT INC | 67,337 | $2.8M | 0.21% | +3,000+4.7% | Added |
| RHUMBLINE ADVISERS | 63,572 | $2.64M | 0.00% | +3,889+6.5% | Added |
| AMUNDI | 63,251 | $2.63M | 0.00% | +5,082+8.7% | Added |
| LPL Financial LLC | 57,385 | $2.38M | 0.00% | −29,938−34.3% | Reduced |
| MARSHALL WACE, LLP | 53,261 | $2.21M | 0.00% | +53,261 | New |
| DEUTSCHE BANK AG\ | 51,992 | $2.16M | 0.00% | +9,074+21.1% | Added |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 50,888 | $2.11M | 0.00% | −6,128−10.7% | Reduced |
| Hennion & Walsh Asset Management, Inc. | 46,020 | $1.91M | 0.05% | +12,665+38.0% | Added |
| ALLIANCEBERNSTEIN L.P. | 54,720 | $1.85M | 0.00% | +10,300+23.2% | Added |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 42,728 | $1.77M | 0.00% | +3,926+10.1% | Added |
| Legato Capital Management LLC | 41,369 | $1.72M | 0.14% | +1,248+3.1% | Added |
| Covestor Ltd | 41,348 | $1.72M | 0.99% | +41,344+1,033,600.0% | Added |
| NISSAY ASSET MANAGEMENT CORP /JAPAN/ /ADV | 37,914 | $1.57M | 0.01% | +12,527+49.3% | Added |
| Quadrature Capital Ltd | 37,682 | $1.56M | 0.01% | −1,458−3.7% | Reduced |
| ROYAL BANK OF CANADA | 35,656 | $1.48M | 0.00% | +4,320+13.8% | Added |
| Merit Financial Group, LLC | 35,471 | $1.47M | 0.01% | −1,447−3.9% | Reduced |
| Polymer Capital Management (US) LLC | 34,521 | $1.43M | 0.21% | +34,521 | New |
| Quantum Private Wealth, LLC | 33,823 | $1.4M | 0.36% | +2,600+8.3% | Added |
| Colony Group, LLC | 33,671 | $1.4M | 0.00% | +410+1.2% | Added |
| FRANKLIN RESOURCES INC | 33,360 | $1.38M | 0.00% | +3,882+13.2% | Added |
| TRUIST FINANCIAL CORP | 32,700 | $1.36M | 0.00% | 00.0% | Unchanged |
| CITIGROUP INC | 32,598 | $1.35M | 0.00% | +27,709+566.8% | Added |
| VANGUARD ASSET MANAGEMENT, Ltd | 32,589 | $1.35M | 0.00% | +3,301+11.3% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 32,145 | $1.33M | 0.00% | +19,246+149.2% | Added |
| Aquatic Capital Management LLC | 32,081 | $1.33M | 0.05% | +32,081 | New |
| KORNITZER CAPITAL MANAGEMENT INC /KS | 31,669 | $1.31M | 0.03% | −3,304−9.4% | Reduced |
| XTX Topco Ltd | 30,848 | $1.28M | 0.02% | +30,848 | New |
| OPPENHEIMER & CO INC | 30,060 | $1.25M | 0.01% | +4,776+18.9% | Added |
| Portolan Capital Management, LLC | 29,314 | $1.22M | 0.05% | −266,322−90.1% | Reduced |
| Virtus ETF Advisers LLC | 28,501 | $1.18M | 0.45% | +1,049+3.8% | Added |
| HighTower Advisors, LLC | 28,498 | $1.18M | 0.00% | −14,769−34.1% | Reduced |