Security record · archived quarter
AMSC
American Superconductor Corporation · Industrials · Electrical Equipment & Parts
95Tracked holders
-1Δ holders
24.00MShares held
$691.45MReported value
+0New positions
−1Exits
Momentum inputs (comparable managers):
holder breadth -1.0% ·
share flow +0.7% ·
net new positions -1.1%
— formula
Concentrated accumulation — rising shares among fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 96 | +4 | 22.82M | $946.45M | +10 | −8 |
| 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 · Q4 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 3.75M | +3.3% | $107.94M | 0.0% | ▲ Add | 3 | SEC ↗ ×16 |
| 2 | The Vanguard Group ✦ (passive) | 3.53M | +19.6% | $101.50M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 3 | Baillie Gifford ✦ | 1.51M | +5.6% | $43.37M | 0.0% | ▲ Add | 7 | SEC ↗ ×4 |
| 4 | State Street Global Advisors ✦ (passive) | 1.19M | +5.0% | $34.31M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 5 | Geode Capital Management ✦ (passive) | 1.09M | +1.9% | $31.40M | 0.0% | ▲ Add | 7 | SEC ↗ ×2 |
| 6 | Nuveen, LLC | 960.97K | — | $27.66M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 7 | Goldman Sachs Group ✦ | 782.29K | -33.4% | $22.51M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 8 | UBS Group AG | 744.56K | — | $21.43M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 9 | Morgan Stanley ✦ | 705.44K | +110.1% | $20.30M | 0.0% | ▲ Add | 2 | SEC ↗ ×8 |
| 10 | Arrowstreet Capital ✦ | 683.20K | -10.2% | $19.66M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 11 | First Trust Advisors Lp | 682.97K | — | $19.66M | 0.0% | n/c | 1 | SEC ↗ |
| 12 | Qube Research & Technologies Ltd | 599.01K | — | $17.24M | 0.0% | n/c | 1 | SEC ↗ |
| 13 | Dimensional Fund Advisors Lp | 540.25K | — | $15.55M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 14 | Nomura Asset Management… | 459.79K | — | $13.23M | 0.0% | n/c | 1 | SEC ↗ |
| 15 | D. E. Shaw & Co. ✦ | 443.15K | -41.1% | $12.75M | 0.0% | ▼ Trim | 7 | SEC ↗ ×2 |
| 16 | Charles Schwab Investment… | 387.51K | — | $11.15M | 0.0% | n/c | 1 | SEC ↗ |
| 17 | Invesco Ltd. | 386.15K | — | $11.11M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 18 | Northern Trust Corp | 360.81K | — | $10.38M | 0.0% | n/c | 1 | SEC ↗ ×6 |
| 19 | Citadel Advisors ✦ | 337.71K | +2178.6% | $9.72M | 0.0% | ▲ Add | 7 | SEC ↗ ×2 |
| 20 | Two Sigma Investments ✦ | 321.57K | +164.4% | $9.25M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 21 | Legal & General Group Plc | 278.03K | — | $8.00M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 22 | T. Rowe Price ✦ | 274.84K | -30.6% | $7.91M | 0.0% | ▼ Trim | 7 | SEC ↗ ×2 |
| 23 | Tudor Investment Corp Et Al | 251.64K | — | $7.24M | 0.0% | n/c | 1 | SEC ↗ |
| 24 | Jane Street Group, Llc | 242.77K | — | $6.99M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 25 | Allspring Global Investments… | 204.68K | — | $6.46M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 26 | Bank Of America Corp /De/ | 165.57K | — | $4.77M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 27 | Balyasny Asset Management L.P. | 152.79K | — | $4.40M | 0.0% | n/c | 1 | SEC ↗ |
| 28 | AQR Capital Management ✦ | 145.97K | -13.5% | $4.20M | 0.0% | ▼ Trim | 6 | SEC ↗ ×5 |
| 29 | Raymond James Financial Inc | 141.81K | — | $4.08M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 30 | Renaissance Technologies ✦ | 139.99K | -56.8% | $4.03M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 31 | Bank of New York Mellon Corp | 137.04K | — | $3.94M | 0.0% | n/c | 1 | SEC ↗ ×6 |
| 32 | Baird Financial Group, Inc. | 134.90K | — | $3.88M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 33 | Wells Fargo & Company/Mn | 133.92K | — | $3.85M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 34 | Fidelity (FMR) ✦ | 124.41K | +23.4% | $3.58M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 35 | JPMorgan Chase ✦ | 123.10K | -46.4% | $3.54M | 0.0% | ▼ Trim | 2 | SEC ↗ ×5 |
| 36 | Swiss National Bank | 89.10K | — | $2.56M | 0.0% | n/c | 1 | SEC ↗ |
| 37 | Bnp Paribas Financial Markets | 82.50K | — | $2.37M | 0.0% | n/c | 1 | SEC ↗ |
| 38 | Sei Investments Co | 78.81K | — | $2.27M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 39 | Millennium Management ✦ | 78.09K | -36.3% | $2.25M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 40 | Point72 Asset Management ✦ | 77.46K | +133.1% | $2.23M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 41 | UBS AM, a distinct business unit of… | 77.21K | — | $2.22M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 42 | Victory Capital Management Inc | 76.88K | — | $2.21M | 0.0% | n/c | 1 | SEC ↗ |
| 43 | Barclays Plc | 73.81K | — | $2.12M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 44 | New York State Common Retirement… | 70.40K | — | $2.03M | 0.0% | n/c | 1 | SEC ↗ |
| 45 | Hrt Financial Lp | 69.72K | — | $2.01M | 0.0% | n/c | 1 | SEC ↗ |
| 46 | Susquehanna International Group, Llp | 65.62K | — | $1.89M | 0.0% | n/c | 1 | SEC ↗ |
| 47 | Ameriprise Financial Inc | 58.96K | — | $1.70M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 48 | Principal Financial Group Inc | 58.95K | — | $1.70M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 49 | Rhumbline Advisers | 57.69K | — | $1.66M | 0.0% | n/c | 1 | SEC ↗ |
| 50 | California State Teachers… | 50.91K | — | $1.47M | 0.0% | n/c | 1 | SEC ↗ |
| 51 | Amundi | 46.32K | — | $1.33M | 0.0% | n/c | 1 | SEC ↗ |
| 52 | Royal Bank Of Canada | 45.13K | — | $1.30M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 53 | Mackenzie Financial Corp | 40.24K | — | $1.16M | 0.0% | n/c | 1 | SEC ↗ |
| 54 | LPL Financial LLC | 40.07K | — | $1.15M | 0.0% | n/c | 1 | SEC ↗ |
| 55 | Alliancebernstein L.P. | 39.32K | — | $1.13M | 0.0% | n/c | 1 | SEC ↗ |
| 56 | Deutsche Bank Ag\ | 38.72K | — | $1.11M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 57 | Man Group plc | 36.09K | — | $1.04M | 0.0% | n/c | 1 | SEC ↗ |
| 58 | Franklin Resources Inc | 35.07K | — | $1.01M | 0.0% | n/c | 1 | SEC ↗ |
| 59 | Russell Investments Group, Ltd. | 35.06K | — | $1.01M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 60 | Focus Partners Wealth | 34.30K | — | $987,241 | 0.0% | n/c | 1 | SEC ↗ |
| 61 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 32.81K | — | $944,387 | 0.0% | n/c | 1 | SEC ↗ |
| 62 | Truist Financial Corp | 32.70K | — | $941,106 | 0.0% | n/c | 1 | SEC ↗ |
| 63 | State Board Of Administration Of… | 24.26K | — | $698,318 | 0.0% | n/c | 1 | SEC ↗ |
| 64 | Tidal Investments LLC | 24.18K | — | $696,044 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 65 | Hsbc Holdings Plc | 23.16K | — | $667,184 | 0.0% | n/c | 1 | SEC ↗ ×6 |
| 66 | Zurcher Kantonalbank (Zurich… | 22.36K | — | $643,521 | 0.0% | n/c | 1 | SEC ↗ |
| 67 | Canada Pension Plan Investment Board | 21.80K | — | $627,404 | 0.0% | n/c | 1 | SEC ↗ |
| 68 | Credit Agricole S A | 21.05K | — | $605,675 | 0.0% | n/c | 1 | SEC ↗ |
| 69 | Mariner, LLC | 20.56K | — | $591,681 | 0.0% | n/c | 1 | SEC ↗ |
| 70 | Manufacturers Life Insurance… | 20.42K | — | $587,803 | 0.0% | n/c | 1 | SEC ↗ |
| 71 | Janus Henderson Group Plc | 20.13K | — | $579,759 | 0.0% | n/c | 1 | SEC ↗ |
| 72 | Mitsubishi UFJ Asset Management… | 13.28K | — | $419,288 | 0.0% | n/c | 1 | SEC ↗ |
| 73 | Voya Investment Management Llc | 14.36K | — | $413,367 | 0.0% | n/c | 1 | SEC ↗ |
| 74 | Universal- Beteiligungs- und… | 14.18K | — | $408,130 | 0.0% | n/c | 1 | SEC ↗ |
| 75 | Quantinno Capital Management LP | 12.94K | — | $372,471 | 0.0% | n/c | 1 | SEC ↗ |
| 76 | ProShare Advisors LLC | 11.65K | — | $335,403 | 0.0% | n/c | 1 | SEC ↗ |
| 77 | Cetera Investment Advisers | 11.43K | — | $328,812 | 0.0% | n/c | 1 | SEC ↗ |
| 78 | State Of Wisconsin Investment Board | 11.23K | — | $323,113 | 0.0% | n/c | 1 | SEC ↗ |
| 79 | Osaic Holdings, Inc. | 11.21K | — | $322,502 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 80 | HighTower Advisors, LLC | 10.48K | — | $301,586 | 0.0% | n/c | 1 | SEC ↗ |
| 81 | Commonwealth Equity Services, Llc | 10.10K | — | $290,590 | 0.0% | n/c | 1 | SEC ↗ |
| 82 | Assenagon Asset Management S.A. | 8.89K | — | $255,825 | 0.0% | n/c | 1 | SEC ↗ |
| 83 | Us Bancorp \De\ | 8.76K | — | $252,113 | 0.0% | n/c | 1 | SEC ↗ |
| 84 | Jones Financial Companies Lllp | 7.85K | — | $225,952 | 0.0% | n/c | 1 | SEC ↗ |
| 85 | Cwm, Llc | 7.75K | — | $223,000 | 0.0% | n/c | 1 | SEC ↗ |
| 86 | Ensign Peak Advisors, Inc | 4.55K | — | $130,949 | 0.0% | n/c | 1 | SEC ↗ |
| 87 | Pnc Financial Services Group, Inc. | 4.26K | — | $122,603 | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 88 | Group One Trading Llc | 3.04K | — | $87,520 | 0.0% | n/c | 1 | SEC ↗ |
| 89 | Citigroup Inc | 1.59K | — | $45,904 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 90 | Rockefeller Capital Management L.P. | 1.56K | — | $44,983 | 0.0% | n/c | 1 | SEC ↗ |
| 91 | BNP Paribas Asset Management… | 700 | — | $20,000 | 0.0% | n/c | 1 | SEC ↗ |
| 92 | Northwestern Mutual Wealth… | 170 | — | $4,893 | 0.0% | n/c | 1 | SEC ↗ |
| 93 | National Bank Of Canada /Fi/ | 120 | — | $3,452 | 0.0% | n/c | 1 | SEC ↗ |
| 94 | TD Waterhouse Canada Inc. | 100 | — | $2,877 | 0.0% | n/c | 1 | SEC ↗ |
| 95 | Federated Hermes, Inc. | 34 | — | $979 | 0.0% | n/c | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| Wellington Management | $23.71M | 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: Q4 2025 ·
Methodology ·
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