AMERICAN SUPERCONDUCTOR CORP /DE/ AMSC
CIK 0000880807 · CUSIP 030111207
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | AWM Investment Company, Inc. CIK 1535264 · View history | $35.95M 2,661,319 shares | 4.93% | +433.02K(+19.40%)Added | SEC filing ↗ May 16, 2024 | ▾ |
| 02 | BAILLIE GIFFORD & CO CIK 1088875 · View history | $34.13M 2,526,550 shares | 0.03% | +440.27K(+21.10%)Added | SEC filing ↗ May 1, 2024 | ▾ |
| 03 | VANGUARD GROUP INC CIK 102909 · View history | $22.95M 1,698,934 shares | 0.00% | +396.81K(+30.50%)Added | SEC filing ↗ May 10, 2024 | ▾ |
| 04 | Hood River Capital Management LLC CIK 1578177 · View history | $21.87M 1,618,807 shares | 0.49% | +1.62MNew | SEC filing ↗ May 15, 2024 | ▾ |
| 05 | ROYCE & ASSOCIATES LP CIK 906304 · View history | $16.12M 1,193,182 shares | 0.14% | -52.68K(-4.20%)Reduced | SEC filing ↗ May 13, 2024 | ▾ |
| 06 | Driehaus Capital Management LLC CIK 938206 · View history | $12.59M 931,979 shares | 0.13% | +931.98KNew | SEC filing ↗ May 15, 2024 | ▾ |
| 07 | Invesco Ltd. CIK 914208 · View history | $11.68M 864,227 shares | 0.00% | -687(-0.10%)Reduced | SEC filing ↗ May 14, 2024 | ▾ |
| 08 | BlackRock Inc. CIK 1364742 · View history | $10.08M 746,266 shares | 0.00% | +132.97K(+21.70%)Added | SEC filing ↗ May 10, 2024 | ▾ |
| 09 | OBERWEIS ASSET MANAGEMENT INC/ CIK 937886 · View history | $8.57M 634,400 shares | 0.62% | +258.60K(+68.80%)Added | SEC filing ↗ May 15, 2024 | ▾ |
| 10 | ESSEX INVESTMENT MANAGEMENT CO LLC CIK 201772 · View history | $7.89M 583,924 shares | 1.56% | -40.09K(-6.40%)Reduced | SEC filing ↗ May 3, 2024 | ▾ |
| 11 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $7.84M 580,547 shares | 0.00% | -103.15K(-15.10%)Reduced | SEC filing ↗ May 10, 2024 | ▾ |
| 12 | MORGAN STANLEY CIK 895421 · Amended · View history | $6.98M 516,416 shares | 0.00% | +355.03K(+220.00%)Added | SEC filing ↗ Oct 17, 2024 | ▾ |
| 13 | MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history | $6.75M 499,667 shares | 0.01% | +86.90K(+21.10%)Added | SEC filing ↗ May 15, 2024 | ▾ |
| 14 | Telemark Asset Management, LLC CIK 1420816 · View history | $5.40M 400,000 shares | 0.56% | +400.00KNew | SEC filing ↗ May 10, 2024 | ▾ |
| 15 | Connor, Clark & Lunn Investment Management Ltd. CIK 1596800 · View history | $5.35M 395,791 shares | 0.02% | +273.96K(+224.90%)Added | SEC filing ↗ May 9, 2024 | ▾ |
| 16 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $5.20M 384,741 shares | 0.00% | +89.78K(+30.40%)Added | SEC filing ↗ May 13, 2024 | ▾ |
| 17 | JANE STREET GROUP, LLC CIK 1595888 · View history | $4.82M 356,473 shares | 0.01% | +142.97K(+67.00%)Added | SEC filing ↗ May 16, 2024 | ▾ |
| 18 | STATE STREET CORP CIK 93751 · View history | $4.51M 334,115 shares | 0.00% | -5.24K(-1.50%)Reduced | SEC filing ↗ May 15, 2024 | ▾ |
| 19 | CITADEL ADVISORS LLC CIK 1423053 · View history | $4.49M 332,397 shares | 0.00% | +70.17K(+26.80%)Added | SEC filing ↗ May 15, 2024 | ▾ |
| 20 | Qube Research & Technologies Ltd CIK 1729829 · View history | $4.33M 320,220 shares | 0.01% | +88.59K(+38.20%)Added | SEC filing ↗ May 14, 2024 | ▾ |
Showing 20 / 129 institutions. The complete set is available through the API.
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