American Superconductor Corp (AMSC)

Price$27.70Cached quote
AMSCNasdaq
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Financial charts

Revenue

Net income

Free cash flow

Total cash / debt

CashTotal debt

Financial statements

21 annual periodsNewest to oldest
2025202420232022202120202019201820172016201520142013201220112010 · Dec 312010 · Mar 312009 · Dec 312009 · Mar 312008 · Dec 312008 · Mar 31
Revenue$299.2M$222.8M$145.6M$106.0M$108.4M$87.1M$63.8M$56.2M$48.4M$900,000$0$0$3.7M$3.4M$5.2M—$286.6M—$316.0M—$182.8M
Gross profit$91.4M$61.9M$35.3M$8.5M$13.5M—$9.4M$14.0M$3.8M$10.8M$22.0M$3.1M$11.3M−$68.5M−$77.7M—−$21.6M—$115.0M—$51.9M
Gross margin30.55%27.76%24.23%8.04%12.44%—14.80%24.94%7.84%1,204.78%——304.30%−2,015.79%−1,493.88%—−7.53%—36.39%—28.38%
Research & development$15.7M$11.4M$8.0M$9.0M$10.5M—$9.6M$9.9M$11.6M$12.5M$12.3M$11.9M$12.2M$15.3M$27.3M—$32.5M—$23.6M—$19.7M
Operating expenses$79.9M$62.9M$46.7M$41.5M$34.6M—$32.6M$20.0M$36.0M$38.4M$42.1M$55.6M$125.5M$145.2M$213.0M—$464.6M—$277.3M—$191.0M
Operating income$11.4M−$1.1M−$11.4M−$33.0M−$21.1M−$23.2M−$23.1M$34.0M−$32.2M−$27.5M−$20.1M−$52.5M−$41.4M−$57.7M−$136.4M—−$178.0M—$38.7M—−$8.2M
Operating margin3.83%−0.48%−7.81%−31.15%−19.45%−26.59%−36.23%60.53%−66.44%−3,060.22%——−1,119.70%−1,698.26%−2,623.83%—−62.10%—12.24%—−4.48%
EBITDA$18.8M$4.5M−$6.9M−$30.4M−$18.4M−$19.5M−$19.1M$38.3M−$21.2M−$20.5M−$12.7M−$43.5M−$30.8M−$44.7M−$121.0M—−$166.7M—$48.5M—$207,000
EBITDA margin6.29%2.01%−4.72%−28.69%−16.96%−22.34%−29.96%68.18%−43.71%−2,282.44%——−832.81%−1,314.32%−2,326.62%—−58.16%—15.33%—0.11%
Net income$133.8M$6.0M−$11.1M−$35.0M−$19.2M−$22.7M−$17.1M$26.8M−$32.8M−$27.4M−$23.1M−$48.7M−$56.3M−$66.1M−$136.8M−$186.3M−$186.3M$16.2M$16.2M−$16.6M−$16.6M
Net profit margin44.73%2.71%−7.63%−33.06%−17.70%−26.03%−26.78%47.61%−67.71%−3,041.44%——−1,520.49%−1,945.03%−2,631.29%—−65.00%—5.14%—−9.10%
Basic EPSper basic share$3.12$0.16-$0.37-$1.26-$0.71-$0.95-$0.81$1.32-$1.73-$1.98-$1.76-$5.74-$8.98-$12.46-$269.00—-$395.00—$37.00—-$39.00
Diluted EPSper diluted share$3.05$0.16-$0.37-$1.26-$0.71-$0.95-$1.03$1.29-$1.73-$1.98-$1.76-$5.74-$8.98-$12.46-$269.00—-$395.00—$36.00—-$39.00

Owners

Reported shareholders

Reference date Jun 30, 2026
BlackRock, Inc. · 8.45% of listed sharesVANGUARD CAPITAL MANAGEMENT LLC · 4.20% of listed sharesBARROW HANLEY MEWHINNEY & STRAUSS LLC · 3.52% of listed sharesUBS Group AG · 2.95% of listed sharesVANGUARD PORTFOLIO MANAGEMENT LLC · 2.93% of listed sharesSTATE STREET CORP · 2.80% of listed sharesGOLDMAN SACHS GROUP INC · 2.67% of listed sharesGEODE CAPITAL MANAGEMENT, LLC · 2.57% of listed sharesFIRST TRUST ADVISORS LP · 2.41% of listed sharesMcGahn Daniel P · ≈2.36% of listed sharesOBERWEIS ASSET MANAGEMENT INC/ · 2.04% of listed sharesAWM Investment Company, Inc. · 1.96% of listed sharesBAILLIE GIFFORD & CO · 1.93% of listed sharesEMERALD ADVISERS, LLC · 1.74% of listed sharesLegal & General Group Plc · 1.56% of listed sharesDIMENSIONAL FUND ADVISORS LP · 1.33% of listed sharesMORGAN STANLEY · 1.31% of listed sharesNuveen, LLC · 1.30% of listed sharesTelemark Asset Management, LLC · 1.24% of listed sharesROYCE & ASSOCIATES LP · 1.15% of listed shares
8.45%of listed shares
BlackRock, Inc.4.1M shares · Jun 30, 2026
View holders
Top 20 reported holders of AMSC
Holder% owned
BlackRock, Inc.
8.45%4.1M shares
VANGUARD CAPITAL MANAGEMENT LLC
4.20%2.03M shares
BARROW HANLEY MEWHINNEY & STRAUSS LLC
3.52%1.7M shares
UBS Group AG
2.95%1.43M shares
VANGUARD PORTFOLIO MANAGEMENT LLC
2.93%1.42M shares
STATE STREET CORP
2.80%1.36M shares
GOLDMAN SACHS GROUP INC
2.67%1.29M shares
GEODE CAPITAL MANAGEMENT, LLC
2.57%1.24M shares
FIRST TRUST ADVISORS LP
2.41%1.17M shares
McGahn Daniel P
≈2.36%1.15M shares
OBERWEIS ASSET MANAGEMENT INC/
2.04%987.5K shares
AWM Investment Company, Inc.
1.96%951.6K shares
BAILLIE GIFFORD & CO
1.93%933.31K shares
EMERALD ADVISERS, LLC
1.74%843.96K shares
Legal & General Group Plc
1.56%756.86K shares
DIMENSIONAL FUND ADVISORS LP
1.33%645.99K shares
MORGAN STANLEY
1.31%635.83K shares
Nuveen, LLC
1.30%628.41K shares
Telemark Asset Management, LLC
1.24%600K shares
ROYCE & ASSOCIATES LP
1.15%555.82K shares

Percentages use 48.45M shares of this listed class outstanding on Jun 30, 2026. ≈ compares the latest reported holding with a share total from a different date; it is not a confirmed current stake.

Gray completes the 100% scale. Reported positions may overlap; holders have different reporting dates.

Source: SEC Form 13F ↗Updated Sep 29, 2026 · Quarterly data

Insider buys & sells

Jul 1, 2024–Jun 30, 2026
Buys2$4.5K disclosed value
Sells (SEC code S)44$24.59M disclosed value
46 recent transactions
TransactionInsiderTypeSharesPriceValueOwned after
Jun 11, 2026Form 4Dambier Laura A.DirectorSellCommon Stock4.0K$37.63$150.5K15.0K
Jun 11, 2026Form 4 · 10b5-1Kosiba John W JRSVP, CFO & TreasurerSellCommon Stock1.7K$37.85$66.0K334.4K
Jun 11, 2026Form 4 · 10b5-1Kosiba John W JRSVP, CFO & TreasurerSellCommon Stock5.0K$37.33$187.6K336.1K
Jun 11, 2026Form 4 · 10b5-1McGahn Daniel PChairman, President and CEOSellCommon Stock4.6K$37.85$174.5K1.13M
Jun 11, 2026Form 4 · 10b5-1McGahn Daniel PChairman, President and CEOSellCommon Stock11.5K$37.28$429.0K1.14M

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