AMSC American Superconductor Corporation
American Superconductor Corporation (AMSC) Institutional Ownership
What the institutions did with AMSC last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended September 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| GEODE CAPITAL MANAGEMENT, LLC | 1.3M | 24.6% |
| DIMENSIONAL FUND ADVISORS LP | 570.3K | 11.2% |
| Ranger Investment Management, L.P. | 459.8K | 9.0% |
| Beau Ventures, LLc | 380.9K | 7.5% |
| BROWN CAPITAL MANAGEMENT LLC | 239.5K | 4.7% |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 205.4K | 4.0% |
| Palisades Investment Partners, LLC | 180.1K | 3.5% |
| Russell Investments Group, Ltd. | 161.2K | 3.2% |
| BARCLAYS PLC | 150.1K | 2.9% |
| Bank of New York Mellon Corp | 148.1K | 2.9% |
| Allspring Global Investments Holdings, LLC | 137.4K | 2.7% |
| LPL Financial LLC | 86.6K | 1.7% |
| ALPS ADVISORS INC | 70.4K | 1.4% |
| CAMPBELL NEWMAN ASSET MANAGEMENT INC | 69.6K | 1.4% |
| Amundi | 66.2K | 1.3% |
| COMPASS FINANCIAL MANAGEMENT LLC | 65.0K | 1.3% |
| Cambridge Investment Research Advisors, Inc. | 60.6K | 1.2% |
| Hennion & Walsh Asset Management, Inc. | 56.7K | 1.1% |
| DEUTSCHE BANK AG\ | 48.3K | 0.9% |
| TRUIST FINANCIAL CORP | 42.4K | 0.8% |
| IMC-Chicago, LLC | 42.0K | 0.8% |
| State of New Jersey Common Pension Fund D | 39.0K | 0.8% |
| Merit Financial Group, LLC | 38.6K | 0.8% |
| Verity Asset Management, Inc. | 38.3K | 0.8% |
| Creative Planning | 35.0K | 0.7% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| BROWN CAPITAL MANAGEMENT LLC | Increased | 68.2K | 239.5K | +171.4K |
| MACKENZIE FINANCIAL CORP | Sold Out | 164.5K | 0 | -164.5K |
| BARCLAYS PLC | Increased | 7.5K | 150.1K | +142.6K |
| DIMENSIONAL FUND ADVISORS LP | Reduced | 646.0K | 570.3K | -75.7K |
| COMPASS FINANCIAL MANAGEMENT LLC | New | 0 | 65.0K | +65.0K |
| Cambridge Investment Research Advisors, Inc. | Reduced | 121.1K | 60.6K | -60.5K |
| Ranger Investment Management, L.P. | Increased | 405.3K | 459.8K | +54.5K |
| IMC-Chicago, LLC | Increased | 12.0K | 42.0K | +30.0K |
| LPL Financial LLC | Increased | 57.4K | 86.6K | +29.2K |
| Diversified Trust Co | Sold Out | 23.9K | 0 | -23.9K |
| Palisades Investment Partners, LLC | Increased | 156.7K | 180.1K | +23.4K |
| Creative Planning | Increased | 12.2K | 35.0K | +22.8K |
| KBC Group NV | Reduced | 24.1K | 1.6K | -22.5K |
| Verity Asset Management, Inc. | Increased | 16.2K | 38.3K | +22.0K |
| CITIGROUP INC | Reduced | 32.6K | 13.3K | -19.3K |
| Mitsubishi UFJ Asset Management Co., Ltd. | Reduced | 32.1K | 13.0K | -19.1K |
| DekaBank Deutsche Girozentrale | New | 0 | 17.8K | +17.8K |
| State of New Jersey Common Pension Fund D | Increased | 21.7K | 39.0K | +17.4K |
| ESSEX INVESTMENT MANAGEMENT CO LLC | Reduced | 221.9K | 205.4K | -16.6K |
| ALPS ADVISORS INC | Reduced | 86.4K | 70.4K | -16.0K |
| Andrew Hill Investment Advisors, Inc. | Sold Out | 15.5K | 0 | -15.5K |
| Covestor Ltd | Reduced | 41.3K | 25.9K | -15.4K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 1.2M | 1.3M | +13.4K |
| Clear Creek Financial Management, LLC | New | 0 | 12.9K | +12.9K |
| Assenagon Asset Management S.A. | Sold Out | 12.4K | 0 | -12.4K |
| HUB Investment Partners, LLC | New | 0 | 10.8K | +10.8K |
| Hennion & Walsh Asset Management, Inc. | Increased | 46.0K | 56.7K | +10.7K |
| Russell Investments Group, Ltd. | Reduced | 171.8K | 161.2K | -10.5K |
| TRUIST FINANCIAL CORP | Increased | 32.7K | 42.4K | +9.7K |
| Fifth Third Wealth Advisors LLC | New | 0 | 9.3K | +9.3K |
| Park Capital Management, LLC / WI | New | 0 | 8.2K | +8.2K |
| M Holdings Securities, Inc. | New | 0 | 8.0K | +8.0K |
| LETSON INVESTMENT MANAGEMENT, INC. | New | 0 | 7.5K | +7.5K |
| Symmetry Partners, LLC | New | 0 | 7.3K | +7.3K |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | Increased | 8.6K | 15.4K | +6.8K |
| Allspring Global Investments Holdings, LLC | Increased | 130.6K | 137.4K | +6.7K |
| Wellington Shields Capital Management, LLC | Sold Out | 6.6K | 0 | -6.6K |
| Pictet Asset Management Holding SA | Sold Out | 6.4K | 0 | -6.4K |
| SEB Asset Management AB | Increased | 5.0K | 11.4K | +6.4K |
| Yorktown Management & Research Co Inc | Sold Out | 6.4K | 0 | -6.4K |
| Savant Capital, LLC | Sold Out | 6.0K | 0 | -6.0K |
| ACORN FINANCIAL ADVISORY SERVICES INC /ADV | Sold Out | 5.6K | 0 | -5.6K |
| Y-Intercept (Hong Kong) Ltd | Sold Out | 5.6K | 0 | -5.6K |
| Granite Investment Partners, LLC | Sold Out | 5.4K | 0 | -5.4K |
| PROMETHIUM ADVISORS,LLC | Sold Out | 5.0K | 0 | -5.0K |
| Bank of New York Mellon Corp | Increased | 144.0K | 148.1K | +4.2K |
| DEUTSCHE BANK AG\ | Reduced | 52.0K | 48.3K | -3.7K |
| State of Wyoming | Sold Out | 3.7K | 0 | -3.7K |
| Merit Financial Group, LLC | Increased | 35.5K | 38.6K | +3.1K |
| COMMONWEALTH EQUITY SERVICES, LLC | Increased | 15.0K | 18.0K | +3.0K |
| Amundi | Increased | 63.3K | 66.2K | +2.9K |
| Farther Finance Advisors, LLC | Increased | 88 | 2.7K | +2.6K |
| SIMPLEX TRADING, LLC | Increased | 16.5K | 19.1K | +2.6K |
| ROI Financial Advisors, LLC | Increased | 12.8K | 15.4K | +2.5K |
| CAMPBELL NEWMAN ASSET MANAGEMENT INC | Increased | 67.3K | 69.6K | +2.2K |
| Parallel Advisors, LLC | Increased | 135 | 2.1K | +2.0K |
| Central Pacific Bank - Trust Division | Increased | 16.3K | 18.2K | +2.0K |
| STRS OHIO | Increased | 3.7K | 5.2K | +1.5K |
| Sterling Capital Management LLC | Increased | 165 | 1.6K | +1.4K |
| D.A. DAVIDSON & CO. | Increased | 6.3K | 7.6K | +1.2K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.