Companies / American Superconductor Corp /De/

American Superconductor Corp /De/

Nasdaq: AMSCCIK 880807DEVENS, MA

Financials · FY2017

Revenue$48.40M
Net income$133.81M
Total debt$7.75M
Cash$143.71M
Diluted EPS$3.05
Shares outstanding48.4M

Ownership

48.4M shares outstanding · as of Jul 31, 2026
0.13%Insiders
Ownership
Insiders0.13%63,823
10%+ / strategic7.28%3,526,632
Institutions64.27%31,135,624
Public float28.31%13,716,064

% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.

Insiders 1

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Insider% of sharesShares
Oliver David R JrDirector
0.13%63,823

Institutional holders 253

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HolderValue% of shares
BlackRock, Inc.$170.00M8.45%
Vanguard Group Inc$101.50M7.28%
State Street Corporation$56.38M2.80%
BAILLIE GIFFORD & CO$49.00M2.99%
Geode Capital Management, LLC$39.58M2.41%
Atreides Management, LP$30.05M2.16%
Nuveen, LLC$27.66M1.98%
First Trust Advisors LP$26.34M1.61%
Emerald Advisers, LLC$25.64M1.56%
Oberweis Asset Management Inc$24.06M1.73%

Activity

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InsidersInstitutions
What insiders are doing in this stock (Form 4).
DateActorActionSecurityValueShares ΔPosition afterImpact
Feb 24, 2026Oliver David R Jr
Director
SellCommon Stock$6.8K-200
-0.33%
60,707
0.13% of shares
low
Apr 3, 2026Oliver David R Jr
Director
GrantCommon Stock$0+3K
+5.13%
63,823
0.13% of shares
low

5%+ ownership events

Schedule 13D / 13G
FilerStance% of classSharesDate
Vanguard Group IncPassive13G/A—3,526,632—
Vanguard Group IncPassive13G/A—0—

Securities

via CUSIP / OpenFIGI
SymbolTypeMarketCUSIPFIGI
AMSC——030111207—