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Disclosery

AMSC AMERICAN SUPERCONDUCTOR CORP

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SHS NEW (common), issuer CIK 880807

236 managers (240 13F filers) reported a position in AMSC shares at 2025-12-31, 33,072,852 shares in all. 35 filers opened a position and 70 filers sold out during the quarter.

Managers
236
13F filers
240
New
35
Added
106
Reduced
64
Sold out
70
Shares held by filers
33,072,852

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Bullock Wealth Management Group307$8.84K<0.01%013F-HRTimeline
Sterling Capital Management LLC290$8.35K<0.01%+18413F-HRTimeline
SHP Wealth Management271$7.8K<0.01%13F-HRTimeline
Sunbelt Securities, Inc.205$5.9K<0.01%013F-HRTimeline
Vermillion Wealth Management, Inc.200$5.76K<0.01%new13F-HRTimeline
SIGNATUREFD, LLC187$5.38K<0.01%-72613F-HRTimeline
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…170$4.89K<0.01%new13F-HR/ATimelineGroup
Greenline Wealth Management LLC169$4.87K0.01%13F-HRTimeline
IFP Advisors, Inc163$4.69K<0.01%+13913F-HRTimeline
Spire Wealth Managementin group Spire Wealth Management157$4.52K<0.01%-6013F-HRTimelineGroup
Parallel Advisors, LLC146$4.2K<0.01%013F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…124$3.57K<0.01%-7313F-HRTimelineGroup
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/120$3.45K<0.01%+11013F-HRTimelineGroup
TRUST CO OF VERMONT100$2.88K<0.01%013F-HRTimeline
Archer Investment Corp100$2.88K<0.01%013F-HRTimeline
TD Waterhouse Canada Inc.100$2.88K<0.01%013F-HRTimeline
MAI Capital Management90$2.59K<0.01%new13F-HRTimeline
WPG Advisers, LLC87$2.5K<0.01%-8113F-HRTimeline
Quarry LP71$2.04K<0.01%+1013F-HRTimeline
CIBC Private Wealth Group LLCin group CIBC Bancorp USA Inc.69$1.99K<0.01%+4413F-HRTimelineGroup
Smartleaf Asset Management LLC53$1.53K<0.01%+3713F-HRTimeline
ROTHSCHILD INVESTMENT LLC51$1.47K<0.01%-1413F-HRTimeline
PRIVATE TRUST CO NA50$1.44K<0.01%-2513F-HRTimeline
HAGER INVESTMENT MANAGEMENT SERVICES, L…50$1.44K<0.01%013F-HRTimeline
WHITTIER TRUST CO OF NEVADA INC40$1.23K<0.01%013F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.34$979<0.01%013F-HRTimelineGroup
Fortitude Family Office, LLC33$950<0.01%013F-HRTimeline
Keating Financial Advisory Services, In…13$374<0.01%13F-HRTimeline
JFS WEALTH ADVISORS, LLC10$288<0.01%013F-HRTimeline
True Wealth Design, LLC7$202<0.01%013F-HRTimeline
Arax Advisory Partners7$201<0.01%-3,66513F-HRTimeline
SJS Investment Consulting Inc.5$144<0.01%new13F-HRTimeline
CENTRAL TRUST Co4$116<0.01%new13F-HRTimeline
MassMutual Private Wealth & Trust, FSB3$86<0.01%013F-HRTimeline
Turning Point Benefit Group, Inc.2$57<0.01%013F-HRTimeline
Covestor Ltd4$00%013F-HRTimelineValue filed as zero, left out of ratios.