미국 초전도체 공사
MX ˙ BMV ˙ US0301112076
SecurityMX:AMSC / American Superconductor Corporation
InstitutionRoyce & Associates Lp
ManagerChuck Royce
Latest Disclosed Ownership1,245,860 shares
Ownership 4.11%
Royce & Associates Lp ownership in AMSC / American Superconductor Corporation

2024-01-30 - Royce & Associates Lp has filed an SC 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 1,245,860 shares of American Superconductor Corporation (MX:AMSC). This represents 4.11 percent ownership of the company. In their previous filing dated 2023-01-31 , Royce & Associates Lp had reported owning 1,663,971 shares, indicating a decrease of -25.13 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date
Effective
Date
Form Prev
Shares
Latest
Shares
ΔShares
(Percent)
Ownership
(Percent)
ΔOwnership
(Percent)
2024-01-30 2024-01-30 13G/A 1,663,971 1,245,860 -25.13 4.11 -27.77
2023-01-31 2023-01-31 13G 1,663,971 5.69

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-05-12 2026-03-31 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 542,778 155,709 40.23 18,373 64.94 0.1814
2026-02-09 2025-12-31 13F AMERICAN SUPERCONDUCTOR CORP SH NEW 030111207 387,069 29,489 8.25 11,140 -47.55 0.1130
2025-11-12 2025-09-30 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 357,580 -454,152 -55.95 21,237 -28.70 0.2117
2025-08-11 2025-06-30 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 811,732 -55,610 -6.41 29,782 89.30 0.3057
2025-05-06 2025-03-31 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 867,342 28,410 3.39 15,734 -23.86 0.1705
2025-02-10 2024-12-31 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 838,932 -116,242 -12.17 20,663 -8.34 0.1917
2024-11-06 2024-09-30 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 955,174 -27,789 -2.83 22,542 -1.95 0.2049
2024-08-13 2024-06-30 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 982,963 -210,219 -17.62 22,992 42.63 0.2149
2024-05-13 2024-03-31 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 1,193,182 -52,678 -4.23 16,120 16.15 0.1439
2024-02-12 2023-12-31 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 1,245,860 -400 -0.03 13,879 47.50 0.1282
2023-11-09 2023-09-30 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 1,246,260 -618,269 -33.16 9,409 -19.38 0.0958
2023-08-07 2023-06-30 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 1,864,529 52,758 2.91 11,672 31.21 0.1133
2023-05-23 2023-03-31 13F/A-1 AMERICAN SUPERCONDUCTOR SHS NEW 030111207 1,811,771 147,800 8.88 8,896 45.27 0.0890
2023-05-04 2023-03-31 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 1,811,771 147,800 9 0.0890
2023-05-23 2022-12-31 13F/A-1 AMERICAN SUPERCONDUCTOR SHS NEW 030111207 1,663,971 141,666 9.31 6,123 -8.17 0.0644
2023-02-13 2022-12-31 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 1,663,971 141,666 6 0.0640
2022-11-03 2022-09-30 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 1,522,305 695,705 84.16 6,668 55.72 0.0754
2022-08-04 2022-06-30 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 826,600 47,000 6.03 4,282 -27.83 0.0441
2022-05-05 2022-03-31 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 779,600 30,000 4.00 5,933 -27.26 0.0504
2022-02-07 2021-12-31 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 749,600 28,026 3.88 8,156 -22.48 0.0609
2021-11-10 2021-09-30 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 721,574 0 0.00 10,521 -16.15 0.0787
2021-08-06 2021-06-30 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 721,574 165,000 29.65 12,548 18.90 0.0862
2021-05-10 2021-03-31 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 556,574 -68,000 -10.89 10,553 -27.86 0.0709
2021-02-08 2020-12-31 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 624,574 -19,500 -3.03 14,628 56.85 0.1209
2020-11-12 2020-09-30 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 644,074 -32,300 -4.78 9,326 69.59 0.1007
2020-08-07 2020-06-30 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 676,374 -97,000 -12.54 5,499 29.75 0.0606
2020-05-12 2020-03-31 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 773,374 73,200 10.45 4,238 -22.89 0.0577
2020-02-06 2019-12-31 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 700,174 71,400 11.36 5,496 11.48 0.0491
2019-11-13 2019-09-30 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 628,774 124,000 24.57 4,930 5.25 0.0456
2019-08-12 2019-06-30 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 504,774 -12,400 -2.40 4,684 -29.57 0.0423
2019-05-09 2019-03-31 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 517,174 -54,700 -9.57 6,651 4.31 0.0562
2019-02-11 2018-12-31 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 571,874 116,374 25.55 6,376 101.39 0.0572
2018-11-13 2018-09-30 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 455,500 106,200 30.40 3,166 29.49 0.0218
2018-08-09 2018-06-30 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 349,300 0 0.00 2,445 20.27 0.0169
2018-05-14 2018-03-31 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 349,300 -20,000 -5.42 2,033 51.60 0.0142
2018-02-09 2017-12-31 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 369,300 0 0.00 1,341 -20.04 0.0089
2017-11-13 2017-09-30 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 369,300 0 0.00 1,677 -1.70 0.0111
2017-08-07 2017-06-30 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 369,300 197,000 114.34 1,706 44.33 0.0113
2017-05-11 2017-03-31 13F AMERICAN SUPERCONDUCTOR SHS NEW 030111207 172,300 172,300 1,182 0.0077
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.