Security record
AMSC
American Superconductor Corporation · Industrials · Electrical Equipment & Parts
98Tracked holders
+4Δ holders
22.91MShares held
$950.26MReported value
+10New positions
−6Exits
Momentum inputs (comparable managers):
holder breadth +4.3% ·
share flow +5.3% ·
net new positions +4.1%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 98 | +4 | 22.91M | $950.26M | +10 | −6 |
| Q1 2026 | 97 | +2 | 21.85M | $738.85M | +12 | −10 |
| Q4 2025 | 95 | -1 | 24.00M | $691.45M | — | −1 |
| Q3 2025 | 19 | +1 | 15.15M | $899.55M | +1 | — |
| Q2 2025 | 15 | +1 | 11.40M | $418.12M | +1 | — |
| Q1 2025 | 11 | 0 | 4.33M | $78.61M | +1 | −1 |
| Q4 2024 | 11 | 0 | 5.01M | $123.30M | +2 | −2 |
| Q3 2024 | 10 | 0 | 4.09M | $96.55M | +2 | −2 |
| Q2 2024 | 10 | — | 4.75M | $111.12M | — | — |
Who holds it · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 4.10M | +2.8% | $170.00M | 0.0% | ▲ Add | 5 | SEC ↗ ×16 |
| 2 | Vanguard Capital Management Llc | 2.03M | -0.3% | $84.44M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 3 | UBS Group AG | 1.43M | +138.2% | $59.32M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 4 | State Street Global Advisors ✦ (passive) | 1.36M | +7.7% | $56.38M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 5 | Goldman Sachs Group ✦ | 1.29M | +82.4% | $53.72M | 0.0% | ▲ Add | 4 | SEC ↗ ×3 |
| 6 | Geode Capital Management ✦ (passive) | 1.24M | +6.3% | $51.62M | 0.0% | ▲ Add | 9 | SEC ↗ ×2 |
| 7 | First Trust Advisors Lp | 1.17M | +50.1% | $48.50M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 8 | Baillie Gifford ✦ | 933.31K | -35.5% | $38.74M | 0.0% | ▼ Trim | 9 | SEC ↗ ×4 |
| 9 | Legal & General Group Plc | 756.86K | +42.8% | $31.42M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 10 | Dimensional Fund Advisors Lp | 645.99K | -1.9% | $26.81M | 0.0% | ▼ Trim | 3 | SEC ↗ ×4 |
| 11 | Morgan Stanley ✦ | 635.83K | +0.3% | $26.39M | 0.0% | ▲ Add | 4 | SEC ↗ ×7 |
| 12 | Nuveen, LLC | 628.41K | -38.5% | $26.09M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 13 | Northern Trust Corp | 433.79K | +10.3% | $18.01M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 14 | Charles Schwab Investment… | 399.12K | +3.6% | $16.57M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 15 | D. E. Shaw & Co. ✦ | 366.85K | -35.4% | $15.23M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 16 | Bnp Paribas Financial Markets | 366.44K | -16.1% | $15.21M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 17 | T. Rowe Price ✦ | 343.87K | +486.7% | $14.27M | 0.0% | ▲ Add | 9 | SEC ↗ ×2 |
| 18 | Hrt Financial Lp | 298.42K | New | $12.39M | 0.0% | New | 1 | SEC ↗ |
| 19 | Qube Research & Technologies Ltd | 250.57K | -23.9% | $10.40M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 20 | Susquehanna International Group, Llp | 235.24K | +280.6% | $9.76M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 21 | Arrowstreet Capital ✦ | 230.90K | -48.3% | $9.58M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 22 | AQR Capital Management ✦ | 194.48K | +5.3% | $8.07M | 0.0% | ▲ Add | 8 | SEC ↗ ×8 |
| 23 | Invesco Ltd. | 180.66K | -25.0% | $7.50M | 0.0% | ▼ Trim | 3 | SEC ↗ ×5 |
| 24 | Russell Investments Group, Ltd. | 171.76K | +359.7% | $7.13M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 25 | Jane Street Group, Llc | 170.32K | New | $7.07M | 0.0% | New | 1 | SEC ↗ ×2 |
| 26 | Mackenzie Financial Corp | 164.45K | +112.1% | $6.83M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 27 | Baird Financial Group, Inc. | 157.20K | -3.7% | $6.53M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 28 | JPMorgan Chase ✦ | 149.50K | +9.2% | $6.04M | 0.0% | ▲ Add | 4 | SEC ↗ ×5 |
| 29 | Bank of New York Mellon Corp | 143.97K | +6.8% | $5.98M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 30 | Allspring Global Investments… | 130.62K | -12.7% | $5.21M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 31 | Raymond James Financial Inc | 118.80K | -4.2% | $4.93M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 32 | Ameriprise Financial Inc | 111.86K | +79.4% | $4.64M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 33 | Bank Of America Corp /De/ | 106.22K | -49.3% | $4.41M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 34 | Tidal Investments LLC | 101.34K | +133.7% | $4.21M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 35 | Millennium Management ✦ | 100.76K | -0.8% | $4.18M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 36 | Holocene Advisors, LP | 95.72K | +689.2% | $3.97M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 37 | UBS AM, a distinct business unit of… | 91.27K | +3.3% | $3.79M | 0.0% | ▲ Add | 3 | SEC ↗ ×9 |
| 38 | Two Sigma Investments ✦ | 90.34K | -46.5% | $3.75M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 39 | Swiss National Bank | 88.60K | -0.6% | $3.68M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 40 | Wellington Management ✦ | 85.24K | New | $3.54M | 0.0% | New | 1 | SEC ↗ ×3 |
| 41 | Sei Investments Co | 85.22K | -62.0% | $3.54M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 42 | Wells Fargo & Company/Mn | 83.31K | +43.2% | $3.46M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 43 | New York State Common Retirement… | 72.90K | +3.5% | $3.03M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 44 | Balyasny Asset Management L.P. | 68.85K | -52.2% | $2.86M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 45 | Rhumbline Advisers | 63.57K | +6.5% | $2.64M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 46 | Amundi | 63.25K | +8.7% | $2.63M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 47 | LPL Financial LLC | 57.38K | -34.3% | $2.38M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 48 | Marshall Wace ✦ | 53.26K | New | $2.21M | 0.0% | New | 1 | SEC ↗ ×2 |
| 49 | Deutsche Bank Ag\ | 51.99K | +21.1% | $2.16M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 50 | Alliancebernstein L.P. | 54.72K | +23.2% | $1.85M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 51 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 42.73K | +10.1% | $1.77M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 52 | Royal Bank Of Canada | 35.66K | +13.8% | $1.48M | 0.0% | ▲ Add | 3 | SEC ↗ ×6 |
| 53 | Focus Partners Wealth | 33.67K | +1.2% | $1.40M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 54 | Franklin Resources Inc | 33.36K | +13.2% | $1.38M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 55 | Truist Financial Corp | 32.70K | 0.0% | $1.36M | 0.0% | Held | 3 | SEC ↗ |
| 56 | Citigroup Inc | 32.60K | +566.8% | $1.35M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 57 | Mitsubishi UFJ Asset Management… | 32.15K | +149.2% | $1.33M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 58 | HighTower Advisors, LLC | 28.50K | -34.1% | $1.18M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 59 | Zurcher Kantonalbank (Zurich… | 24.34K | +9.4% | $1.01M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 60 | Citadel Advisors ✦ | 20.53K | -90.5% | $852,117 | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 61 | Manufacturers Life Insurance… | 20.43K | -1.9% | $847,883 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 62 | Universal- Beteiligungs- und… | 19.43K | +28.5% | $806,414 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 63 | Mariner, LLC | 18.75K | -25.4% | $778,484 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 64 | Quantinno Capital Management LP | 17.07K | +31.3% | $708,451 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 65 | Simplex Trading, Llc | 16.53K | New | $686,284 | 0.0% | New | 1 | SEC ↗ |
| 66 | Voya Investment Management Llc | 15.90K | +11.7% | $660,092 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 67 | Commonwealth Equity Services, Llc | 15.04K | +39.4% | $624,480 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 68 | Group One Trading Llc | 13.62K | +10.9% | $565,449 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 69 | Osaic Holdings, Inc. | 12.65K | +19.4% | $525,136 | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 70 | Assenagon Asset Management S.A. | 12.45K | -33.4% | $516,716 | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 71 | Creative Planning | 12.17K | +32.0% | $505,136 | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 72 | IMC-Chicago, LLC | 12.02K | New | $498,950 | 0.0% | New | 1 | SEC ↗ |
| 73 | Credit Agricole S A | 10.74K | 0.0% | $446,025 | 0.0% | Held | 3 | SEC ↗ |
| 74 | State Board Of Administration Of… | 10.54K | -56.6% | $437,474 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 75 | Fidelity (FMR) ✦ | 10.35K | -93.0% | $429,788 | 0.0% | ▼ Trim | 5 | SEC ↗ ×2 |
| 76 | Cetera Investment Advisers | 10.24K | +2.2% | $425,021 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 77 | Aviva Plc | 10.07K | -28.8% | $417,840 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 78 | Stifel Financial Corp | 9.99K | New | $414,600 | 0.0% | New | 1 | SEC ↗ ×2 |
| 79 | Td Asset Management Inc | 9.98K | New | $414,187 | 0.0% | New | 1 | SEC ↗ |
| 80 | ProShare Advisors LLC | 9.68K | -11.6% | $401,818 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 81 | Walleye Trading LLC | 8.37K | +65.3% | $347,563 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 82 | Jones Financial Companies Lllp | 8.64K | +20.6% | $343,148 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 83 | Prudential Financial Inc | 7.86K | +8.0% | $326,269 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 84 | Barclays Plc | 7.47K | -57.3% | $310,121 | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 85 | Wealth Enhancement Advisory… | 8.61K | +34.5% | $309,633 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 86 | Pictet Asset Management Holding SA | 6.43K | -13.2% | $267,117 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 87 | State Of Wisconsin Investment Board | 5.91K | New | $245,241 | 0.0% | New | 1 | SEC ↗ |
| 88 | Mercer Global Advisors Inc /Adv | 5.55K | New | $230,381 | 0.0% | New | 1 | SEC ↗ |
| 89 | Victory Capital Management Inc | 5.31K | -47.3% | $220,543 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 90 | Ensign Peak Advisors, Inc | 3.05K | -33.0% | $126,606 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 91 | Optiver Holding B.V. | 2.75K | +46.3% | $114,277 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 92 | Rockefeller Capital Management L.P. | 1.56K | -1.1% | $64,590 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 93 | BNP Paribas Asset Management… | 753 | -15.1% | $31,257 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 94 | Pnc Financial Services Group, Inc. | 386 | +13.2% | $16,024 | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 95 | National Bank Of Canada /Fi/ | 163 | -44.6% | $6,766 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 96 | Northwestern Mutual Wealth… | 119 | +8.2% | $4,940 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 97 | TD Waterhouse Canada Inc. | 110 | +10.0% | $4,397 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 98 | Us Bancorp \De\ | 61 | -99.3% | $2,532 | 0.0% | ▼ Trim | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Hrt Financial Lp | $12.39M | 0.0% |
| Jane Street Group, Llc | $7.07M | 0.0% |
| Wellington Management | $3.54M | 0.0% |
| Marshall Wace | $2.21M | 0.0% |
| Simplex Trading, Llc | $686,284 | 0.0% |
| IMC-Chicago, LLC | $498,950 | 0.0% |
| Stifel Financial Corp | $414,600 | 0.0% |
| Td Asset Management Inc | $414,187 | 0.0% |
| State Of Wisconsin Investment… | $245,241 | 0.0% |
| Mercer Global Advisors Inc… | $230,381 | 0.0% |
Exited
| Nomura Asset Management… | $12.85M | was 0.0% |
| Boston Partners | $2.24M | was 0.0% |
| Lazard Asset Management Llc | $1.91M | was 0.0% |
| Canada Pension Plan… | $514,520 | was 0.0% |
| Cerity Partners LLC | $216,335 | was 0.0% |
| Fifth Third Bancorp | $6,601 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 240 holders, 33.03M shares, $1.09B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Jul 31
SC 13G/A — VANGUARD CAPITAL MANAGEMENT LLC
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q2 2026 ·
Methodology ·
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