美國超導公司
US ˙ NasdaqGS ˙ US0301112076

SecurityAMSC / American Superconductor Corporation
InstitutionFranklin Resources Inc
Latest Disclosed Ownership29,478 shares
Latest Disclosed Value $ 997,830
Franklin Resources Inc reports 15.95% decrease in ownership of AMSC / American Superconductor Corporation

On May 13, 2026 - Franklin Resources Inc filed a 13F-HR form disclosing ownership of 29,478 shares of American Superconductor Corporation (US:AMSC) valued at $997,830 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 35,072 shares of American Superconductor Corporation. This represents a change in shares of -15.95% during the quarter. The current value of the position is $1,367,779 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 29,478 -5,594 -15.95 998 -1.19 0.0000
2026-02-11 2025-12-31 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 35,072 34,806 13,084.96 1,009 5,210.53 0.0002
2025-11-13 2025-09-30 13F AMER STATES WTR COM 030111207 266 -50,249 -99.47 20 -98.97 0.0000
2025-08-12 2025-06-30 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 50,515 6,413 14.54 1,853 131.63 0.0005
2025-05-13 2025-03-31 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 44,102 11,287 34.40 800 -0.99 0.0002
2025-02-12 2024-12-31 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 32,815 0 0.00 808 3.46 0.0002
2024-11-27 2024-09-30 13F/A-1 AMERICAN SUPERCONDUCTOR SHS NEW 030111207 32,815 32,815 781 0.0002
2024-11-12 2024-09-30 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 32,815 32,815 781 0.0000
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.