AMSC Insider Activity

View recent SEC Form 4 insider transactions for AMSC, including purchases, sales, option exercises, and other insider filings.

DateInsiderTypeQuantityPriceTotal ValueShares Owned
Sep 18, 2026Littlefield Barbara G.Grant1,607$0.00$0.0037,034
Jun 11, 2026Dambier Laura A.Sale4,000$37.63$150,520.0014,992
Jun 11, 2026Kosiba John W JRSale1,743$37.85$65,975.34334,377
Jun 11, 2026Kosiba John W JRSale5,026$37.33$187,603.99336,120
Jun 11, 2026McGahn Daniel PSale11,508$37.28$429,047.011,136,538
Jun 11, 2026McGahn Daniel PSale4,609$37.85$174,455.721,131,929
Jun 08, 2026Kosiba John W JRSale1,549$42.35$65,595.50341,146
Jun 08, 2026Kosiba John W JRSale3,286$41.50$136,371.30342,695
Jun 08, 2026McGahn Daniel PSale4,992$41.39$206,614.391,152,724
Jun 08, 2026McGahn Daniel PSale4,678$42.19$197,381.191,148,046
Jun 03, 2026Kosiba John W JRSale609$50.83$30,952.91345,981
Jun 03, 2026Kosiba John W JRSale3,200$48.31$154,582.08349,228
Jun 03, 2026Kosiba John W JRSale2,638$49.28$130,012.77346,590
Jun 03, 2026McGahn Daniel PSale500$50.29$25,144.001,158,533
Jun 03, 2026McGahn Daniel PSale817$50.99$41,658.831,157,716
Jun 03, 2026McGahn Daniel PSale7,075$48.31$341,769.201,163,534
Jun 03, 2026McGahn Daniel PSale4,501$49.25$221,692.701,159,033
Jun 02, 2026Kosiba John W JRSale12,122$50.62$613,601.09365,064
Jun 02, 2026Kosiba John W JRSale600$52.19$31,315.02352,428
Jun 02, 2026Kosiba John W JRSale5,704$49.46$282,125.54377,186
Jun 02, 2026Kosiba John W JRSale12,036$51.47$619,444.78353,028
Jun 02, 2026McGahn Daniel PSale28,558$51.46$1,469,554.701,172,914
Jun 02, 2026McGahn Daniel PSale27,900$50.63$1,412,616.061,201,472
Jun 02, 2026McGahn Daniel PSale13,762$49.45$680,544.661,229,372
Jun 02, 2026McGahn Daniel PSale2,305$52.14$120,173.711,170,609
Jun 01, 2026Kosiba John W JRGrant30,000$0.00$0.00382,890
Jun 01, 2026McGahn Daniel PGrant60,000$0.00$0.001,243,134
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