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Data

SEC EDGAR Form 4 ↗
CongressStock.com ↗
Track13F.com ↗
About the data

© 2026 InsiderTradingScreener.com. Data from SEC EDGAR Form 4 filings.For informational purposes only. Not financial advice.

Home/Companies/AMERICAN SUPERCONDUCTOR CORP

AMERICAN SUPERCONDUCTOR CORP

21 insider trades tracked

AMSC

Insider trades

21

Total bought

$70K

Total sold

$11.5M

Unique insiders

7

Recent insider trades

Most recent Form 4 filings for AMERICAN SUPERCONDUCTOR CORP.

OLIVER DAVID R JRsold200 shares ofAMSCat $34.1$7KFeb 26Details
House Arthur Hsold9,703 shares ofAMSCat $50.921$494KAug 8Details
House Arthur Hexercised9,703 shares ofAMSCat $6.8$66KAug 8Details
Kosiba John W JRsold

Insiders at this company

Executives and directors who have filed Form 4s.

Kosiba John W JR6 trades
McGahn Daniel P5 trades
OLIVER DAVID R JR3 trades
House Arthur H3 trades
Klein Margaret D.2 trades
Littlefield Barbara G.1 trades
Dambier Laura A.1 trades

9,843 shares of

at $55.26

$544KAug 6Details

Kosiba John W JRsold15,740 shares ofAMSCat $55.129$868KAug 6Details

Kosiba John W JRsold34,260 shares ofAMSCat $54.341$1.9MAug 6Details

McGahn Daniel Psold27,743 shares ofAMSCat $55.107$1.5MAug 6Details

McGahn Daniel Psold73,105 shares ofAMSCat $54.26$4MAug 6Details

McGahn Daniel Psold37,165 shares ofAMSCat $21.688$806KJun 12Details

Kosiba John W JRsold32,000 shares ofAMSCat $21.68$694KJun 12Details

Kosiba John W JRsold2,170 shares ofAMSCat $15.299$33KMay 23Details

Kosiba John W JRsold26,830 shares ofAMSCat $14.783$397KMay 23Details

McGahn Daniel Psold1,620 shares ofAMSCat $15.305$25KMay 23Details

McGahn Daniel Psold18,939 shares ofAMSCat $14.782$280KMay 23Details

Dambier Laura A.granted3,840 shares ofAMSCat $0Apr 4Details

House Arthur Hgranted3,840 shares ofAMSCat $0Apr 4Details

Klein Margaret D.granted3,840 shares ofAMSCat $0Apr 4Details

Littlefield Barbara G.granted3,840 shares ofAMSCat $0Apr 4Details

OLIVER DAVID R JRgranted3,840 shares ofAMSCat $0Apr 4Details

Klein Margaret D.bought500 shares ofAMSCat $5.565$3KAug 6Details

OLIVER DAVID R JRbought200 shares ofAMSCat $8.33$2KNov 13Details

AMERICAN SUPERCONDUCTOR CORP (AMSC) — Insider Trading Activity | Insider Trading Screener