American Superconductor shares owned by Vanguard Group
Quarter-by-quarter ownership of American Superconductor (AMSC) shares owned by Vanguard Group
from 13F filings
Historical chart of Vanguard Group investment in American Superconductor
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All positions including American Superconductor held by Vanguard Group consolidated in one spreadsheet with up to 7 years of data
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Quarterly reported holdings in American Superconductor by Vanguard Group
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $175M | 2.9M | 59.39 |
| 2025-06-30 | $90M | 2.4M | 36.69 |
| 2025-03-31 | $42M | 2.3M | 18.14 |
| 2024-12-31 | $55M | 2.2M | 24.63 |
| 2024-09-30 | $57M | 2.4M | 23.60 |
| 2024-06-30 | $49M | 2.1M | 23.39 |
| 2024-03-31 | $23M | 1.7M | 13.51 |
| 2023-12-31 | $15M | 1.3M | 11.14 |
| 2023-09-30 | $9.7M | 1.3M | 7.55 |
| 2023-06-30 | $7.8M | 1.2M | 6.26 |
| 2023-03-31 | $6.1M | 1.2M | 4.91 |
| 2022-12-31 | $4.0M | 1.1M | 3.68 |
| 2022-06-30 | $5.8M | 1.1M | 5.18 |
| 2022-03-31 | $9.4M | 1.2M | 7.61 |
| 2021-09-30 | $18M | 1.2M | 14.58 |
| 2021-06-30 | $21M | 1.2M | 17.41 |
| 2021-03-31 | $23M | 1.2M | 18.94 |
| 2020-12-31 | $27M | 1.1M | 23.42 |
| 2020-09-30 | $14M | 987k | 14.48 |
| 2020-06-30 | $8.6M | 1.1M | 8.14 |
| 2020-03-31 | $5.5M | 996k | 5.48 |
| 2019-12-31 | $7.8M | 993k | 7.85 |
| 2019-09-30 | $7.3M | 929k | 7.85 |
| 2019-03-31 | $9.6M | 752k | 12.74 |
| 2018-12-31 | $8.1M | 723k | 11.19 |
| 2018-09-30 | $5.2M | 755k | 6.84 |
| 2018-06-30 | $5.3M | 739k | 7.15 |
| 2018-03-31 | $4.2M | 718k | 5.90 |
| 2017-12-31 | $2.1M | 558k | 3.69 |
| 2017-09-30 | $2.2M | 518k | 4.32 |
| 2017-06-30 | $1.9M | 388k | 4.80 |
| 2017-03-31 | $3.2M | 461k | 6.89 |
| 2016-12-31 | $3.5M | 474k | 7.34 |
| 2016-09-30 | $3.1M | 450k | 6.98 |
| 2016-06-30 | $3.9M | 461k | 8.45 |
| 2015-12-31 | $2.4M | 384k | 6.31 |
| 2015-09-30 | $1.6M | 374k | 4.38 |
| 2015-06-30 | $1.9M | 361k | 5.25 |
| 2015-03-31 | $1.5M | 227k | 6.57 |