American Superconductor Corporation
MX ˙ BMV ˙ US0301112076
SecurityMX:AMSC / American Superconductor Corporation
InstitutionPanagora Asset Management Inc
Latest Disclosed Ownership256,392 shares
Latest Disclosed Value $ 8,678,869
Panagora Asset Management Inc reports 0.63% increase in ownership of AMSC / American Superconductor Corporation

On May 14, 2026 - Panagora Asset Management Inc filed a 13F-HR form disclosing ownership of 256,392 shares of American Superconductor Corporation (MX:AMSC) valued at $8,678,869 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 254,785 shares of American Superconductor Corporation. This represents a change in shares of 0.63% during the quarter.

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)
2026-05-14 2026-03-31 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 256,392 1,607 0.63 8,679 18.36 0.0325
2026-02-13 2025-12-31 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 254,785 52,191 25.76 7,333 -39.06 0.0260
2025-11-13 2025-09-30 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 202,594 30,606 17.80 12,032 90.68 0.0485
2025-08-13 2025-06-30 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 171,988 26,674 18.36 6,310 139.47 0.0284
2025-05-15 2025-03-31 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 145,314 71,701 97.40 2,636 45.34 0.0132
2025-02-13 2024-12-31 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 73,613 30,212 69.61 1,813 77.05 0.0084
2024-11-13 2024-09-30 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 43,401 43,401 1,024 0.0049
2021-08-11 2021-06-30 13F AMERICAN SUPERCONDUCTOR COMMON 030111207 0 -335 -100.00 0 -100.00
2021-05-12 2021-03-31 13F AMERICAN SUPERCONDUCTOR COMMON 030111207 335 -66 -16.46 6 -33.33 0.0000
2021-02-10 2020-12-31 13F AMERICAN SUPERCONDUCTOR COMMON 030111207 401 222 124.02 9 200.00 0.0001
2020-11-13 2020-09-30 13F AMERICAN SUPERCONDUCTOR COMMON 030111207 179 179 3 0.0000
2015-05-15 2015-03-31 13F AMERICAN SUPERCONDUCTOR COMMON 030111108 0 -101,900 -100.00 0 -100.00
2015-02-13 2014-12-31 13F AMERICAN SUPERCONDUCTOR COMMON 030111108 101,900 -10,630 -9.45 75 -52.83 0.0004
2014-11-12 2014-09-30 13F AMERICAN SUPERCONDUCTOR COMMON 030111108 112,530 112,530 159 0.0008
2014-08-14 2014-06-30 13F AMERICAN SUPERCONDUCTOR COMMON 030111108 0 -18,562 -100.00 0 -100.00
2014-05-15 2014-03-31 13F AMERICAN SUPERCONDUCTOR COMMON 030111108 18,562 1,995 12.04 30 11.11 0.0001
2014-02-21 2013-12-31 13F AMERICAN SUPERCONDUCTOR COMMON 030111108 16,567 -4,281 -20.53 27 -44.90 0.0001
2013-11-14 2013-09-30 13F AMERICAN SUPERCONDUCTOR COMMON 030111108 20,848 20,848 49 0.0002
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.