Royce & Associates LP
- SEC CIK
- 0000906304
- Latest filing
- Aug 14, 2026
AMSC holding history
American Superconductor Corp in every 13F filed by Royce & Associates LP, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
AMSC overviewAll 13F holders of AMSCFull Q2 2026 holdings
- Shares (Q2 2026)
- 555,821
- Value
- $23.1M
- % of portfolio
- 0.2%
- Quarters held
- 22
- Since Q1 2021
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2026 | 555,821 | $23.1M | 0.2% | +13,043+2.4% | Added | Holders |
| Q1 2026 | 542,778 | $18.4M | 0.2% | +155,709+40.2% | Added | Holders |
| Q4 2025 | 387,069 | $11.1M | 0.1% | +29,489+8.2% | Added | Holders |
| Q3 2025 | 357,580 | $21.2M | 0.2% | −454,152−55.9% | Reduced | Holders |
| Q2 2025 | 811,732 | $29.8M | 0.3% | −55,610−6.4% | Reduced | Holders |
| Q1 2025 | 867,342 | $15.7M | 0.2% | +28,410+3.4% | Added | Holders |
| Q4 2024 | 838,932 | $20.7M | 0.2% | −116,242−12.2% | Reduced | Holders |
| Q3 2024 | 955,174 | $22.5M | 0.2% | −27,789−2.8% | Reduced | Holders |
| Q2 2024 | 982,963 | $23.0M | 0.2% | −210,219−17.6% | Reduced | Holders |
| Q1 2024 | 1,193,182 | $16.1M | 0.1% | −52,678−4.2% | Reduced | Holders |
| Q4 2023 | 1,245,860 | $13.9M | 0.1% | −4000.0% | Reduced | Holders |
| Q3 2023 | 1,246,260 | $9.41M | 0.1% | −618,269−33.2% | Reduced | Holders |
| Q2 2023 | 1,864,529 | $11.7M | 0.1% | +52,758+2.9% | Added | Holders |
| Q1 2023 | 1,811,771 | $8.90M | 0.1% | +147,800+8.9% | Added | Holders |
| Q4 2022 | 1,663,971 | $6.12M | 0.1% | +141,666+9.3% | Added | Holders |
| Q3 2022 | 1,522,305 | $6.67M | 0.1% | +695,705+84.2% | Added | Holders |
| Q2 2022 | 826,600 | $4.28M | <0.1% | +47,000+6.0% | Added | Holders |
| Q1 2022 | 779,600 | $5.93M | 0.1% | +30,000+4.0% | Added | Holders |
| Q4 2021 | 749,600 | $8.16M | 0.1% | +28,026+3.9% | Added | Holders |
| Q3 2021 | 721,574 | $10.5M | 0.1% | 00.0% | Unchanged | Holders |
| Q2 2021 | 721,574 | $12.5M | 0.1% | +165,000+29.6% | Added | Holders |
| Q1 2021 | 556,574 | $10.6M | 0.1% | – | – | Holders |
Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.