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AMSC - As of  06/15/25, 07:09:08 PM:   84 Insider Transactions.

Sector: Technology    Industry: Diversified Electronics
Prev Close:$9.12  Avg Vol(3m): 144,949  P/E: 0.00  EPS: -1.76

Email this page to a friend.    Insider Transactions for AMSC

Buy/Sell* Filed Date Subject Symbol Acquirer Pct Owned Details
S 2020-06-19 16:05:56.0 AMERICAN SUPERCONDUCTOR CORP AMSC DOUGLAS KEVIN 1.57% view
S 2020-02-13 06:03:24.0 AMERICAN SUPERCONDUCTOR CORP AMSC SATTERFIELD THOMAS A JR 3.1% view
S 2020-02-12 13:13:54.0 AMERICAN SUPERCONDUCTOR CORP AMSC AWM Investment Company 5.1% view
B 2020-02-12 10:49:05.0 AMERICAN SUPERCONDUCTOR CORP AMSC RENAISSANCE TECHNOLOGIES LLC 5.67% view
B 2020-02-07 08:45:54.0 AMERICAN SUPERCONDUCTOR CORP AMSC BlackRock Inc 6.5% view
S 2020-02-04 16:57:40.0 AMERICAN SUPERCONDUCTOR CORP AMSC INTEGRATED CORE STRATEGIES 0.0% view
S 2020-01-27 16:15:32.0 AMERICAN SUPERCONDUCTOR CORP AMSC DOUGLAS KEVIN 9.4% view
B 2019-06-24 16:29:54.0 AMERICAN SUPERCONDUCTOR CORP AMSC INTEGRATED CORE STRATEGIES 5.1% view
B 2019-02-13 16:40:03.0 AMERICAN SUPERCONDUCTOR CORP AMSC SATTERFIELD THOMAS A JR 5.3% view
B 2019-02-13 13:42:40.0 AMERICAN SUPERCONDUCTOR CORP AMSC AWM Investment Company 6.5% view
S 2019-02-08 16:33:54.0 AMERICAN SUPERCONDUCTOR CORP AMSC HIRSCHMAN ORIN 4.9% view
B 2019-02-08 11:52:50.0 AMERICAN SUPERCONDUCTOR CORP AMSC HIRSCHMAN ORIN 9.9% view
B 2018-10-05 14:21:28.0 AMERICAN SUPERCONDUCTOR CORP AMSC HIRSCHMAN ORIN 5.45% view
B 2018-03-08 06:02:44.0 AMERICAN SUPERCONDUCTOR CORP AMSC SATTERFIELD THOMAS A JR 5.0% view
B 2018-02-13 16:03:10.0 AMERICAN SUPERCONDUCTOR CORP AMSC AWM Investment Company 5.5% view
S 2018-01-26 09:53:39.0 AMERICAN SUPERCONDUCTOR CORP AMSC ARDSLEY ADVISORY PARTNERS 1.5% view
S 2017-09-08 16:14:30.0 AMERICAN SUPERCONDUCTOR CORP AMSC AWM Investment Company 3.3% view
B 2017-05-08 15:57:27.0 AMERICAN SUPERCONDUCTOR CORP AMSC ARDSLEY ADVISORY PARTNERS 7.4% view
B 2017-02-10 10:39:17.0 AMERICAN SUPERCONDUCTOR CORP AMSC AWM Investment Company 8.8% view
B 2016-02-12 10:26:05.0 AMERICAN SUPERCONDUCTOR CORP AMSC Footprints Asset Management & Research 5.7% view
S 2015-05-05 16:30:36.0 AMERICAN SUPERCONDUCTOR CORP AMSC DOUGLAS KEVIN 15.0% view
S 2015-02-13 07:51:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC CAPITAL VENTURES INTERNATIONAL 3.1% view
S 2014-07-10 15:58:55.0 AMERICAN SUPERCONDUCTOR CORP AMSC BlackRock Inc 2.1% view
S 2014-02-13 10:20:29.0 AMERICAN SUPERCONDUCTOR CORP AMSC CAPITAL VENTURES INTERNATIONAL 5.5% view
B 2014-01-28 10:57:27.0 AMERICAN SUPERCONDUCTOR CORP AMSC BlackRock Inc 5.5% view
S 2013-12-10 16:06:24.0 AMERICAN SUPERCONDUCTOR CORP AMSC BlackRock Inc 4.95% view
S 2013-02-14 16:17:19.0 AMERICAN SUPERCONDUCTOR CORP AMSC DOUGLAS KEVIN 24.0% view
B 2013-02-13 12:13:09.0 AMERICAN SUPERCONDUCTOR CORP AMSC CAPITAL VENTURES INTERNATIONAL 9.9% view
S 2013-02-08 16:18:21.0 AMERICAN SUPERCONDUCTOR CORP AMSC BlackRock Inc 5.49% view
B 2012-12-31 09:31:51.0 AMERICAN SUPERCONDUCTOR CORP AMSC CAPITAL VENTURES INTERNATIONAL 9.9% view
S 2012-02-13 14:47:18.0 AMERICAN SUPERCONDUCTOR CORP AMSC BlackRock Inc 5.88% view
B 2011-10-06 17:44:11.0 AMERICAN SUPERCONDUCTOR CORP AMSC DOUGLAS KEVIN 25.0% view
S 2011-08-08 11:34:07.0 AMERICAN SUPERCONDUCTOR CORP AMSC BlackRock Inc 6.56% view
S 2011-06-10 09:37:31.0 AMERICAN SUPERCONDUCTOR CORP AMSC FMR LLC 0.0% view
B 2011-04-11 16:58:34.0 AMERICAN SUPERCONDUCTOR CORP AMSC DOUGLAS KEVIN 22.8% view
B 2011-02-11 14:56:14.0 AMERICAN SUPERCONDUCTOR CORP AMSC DOUGLAS KEVIN 14.6% view
S 2011-01-10 12:46:13.0 AMERICAN SUPERCONDUCTOR CORP AMSC BlackRock Inc 13.49% view
B 2010-03-08 16:42:37.0 AMERICAN SUPERCONDUCTOR CORP AMSC DOUGLAS KEVIN 12.0% view
B 2010-02-16 12:45:40.0 AMERICAN SUPERCONDUCTOR CORP AMSC FMR LLC 6.838% view
B 2010-01-29 06:01:12.0 AMERICAN SUPERCONDUCTOR CORP AMSC DOUGLAS KEVIN 9.82% view
B 2010-01-08 12:03:16.0 AMERICAN SUPERCONDUCTOR CORP AMSC BlackRock Inc 17.1% view
B 2009-05-19 15:36:35.0 AMERICAN SUPERCONDUCTOR CORP AMSC DOUGLAS KEVIN 9.0% view
S 2009-02-17 06:08:53.0 AMERICAN SUPERCONDUCTOR CORP AMSC DOUGLAS KEVIN 6.34% view
S 2009-02-10 08:15:13.0 AMERICAN SUPERCONDUCTOR CORP AMSC BlackRock Inc 12.36% view
S 2008-11-10 09:52:20.0 AMERICAN SUPERCONDUCTOR CORP AMSC FMR LLC n/a view
S 2008-02-14 16:18:55.0 AMERICAN SUPERCONDUCTOR CORP AMSC FMR LLC n/a view
S 2008-02-13 12:47:27.0 AMERICAN SUPERCONDUCTOR CORP AMSC Invesco Ltd 5.21% view
B 2008-02-08 14:37:16.0 AMERICAN SUPERCONDUCTOR CORP AMSC BlackRock Inc 15.09% view
S 2008-02-07 15:45:29.0 AMERICAN SUPERCONDUCTOR CORP AMSC DOUGLAS KEVIN 7.9% view
S 2007-11-13 09:16:58.0 AMERICAN SUPERCONDUCTOR CORP AMSC FMR LLC n/a view
B 2007-02-14 14:23:31.0 AMERICAN SUPERCONDUCTOR CORP AMSC DOUGLAS KEVIN 8.1% view
B 2007-02-14 14:20:05.0 AMERICAN SUPERCONDUCTOR CORP AMSC AMVESCAP PLC 6.31% view
S 2007-02-13 14:57:35.0 AMERICAN SUPERCONDUCTOR CORP AMSC BlackRock Inc 13.75% view
B 2006-10-10 14:05:51.0 AMERICAN SUPERCONDUCTOR CORP AMSC BlackRock Inc 13.81% view
B 2006-08-04 00:00:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC DOUGLAS KEVIN 5.6% view
B 2006-02-07 00:00:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC MERRILL LYNCH ASSET MANAGEMENT INC 10.46% view
B 2005-11-08 00:00:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC MERRILL LYNCH ASSET MANAGEMENT INC 10.01% view
B 2005-02-11 00:00:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC IRONBRIDGE CAPITAL MANAGEMENT LLC 6.88% view
S 2005-02-04 00:00:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC MASSACHUSETTS FINANCIAL SERVICES CO 7.21% view
S 2004-02-25 00:00:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC EDF CAPITAL INVESTISSEMENT SA 3.95% view
S 2004-02-11 00:00:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC MASSACHUSETTS FINANCIAL SERVICES CO 9.87% view
S 2004-02-06 00:00:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC DIMENSIONAL FUND ADVISORS INC 3.92% view
B 2003-11-10 00:00:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC MASSACHUSETTS FINANCIAL SERVICES CO 10.3% view
S 2003-05-06 00:00:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC STATE OF WISCONSIN INVESTMENT BOARD 0.0% view
S 2003-04-09 00:00:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC STATE OF WISCONSIN INVESTMENT BOARD 0.46% view
B 2003-02-11 00:00:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC DIMENSIONAL FUND ADVISORS INC 6.32% view
S 2003-02-11 00:00:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC CAPITAL GROUP INTERNATIONAL INC 0.1% view
B 2003-02-11 00:00:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC STATE OF WISCONSIN INVESTMENT BOARD 6.98% view
B 2002-02-11 00:00:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC STATE OF WISCONSIN INVESTMENT BOARD 5.64% view
B 2002-02-11 00:00:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC CAPITAL GROUP INTERNATIONAL INC 7.2% view
S 2001-02-12 00:00:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC CAPITAL GROUP INTERNATIONAL INC 5.3% view
S 2001-02-09 00:00:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC STATE OF WISCONSIN INVESTMENT BOARD 0.25% view
B 2000-02-15 00:00:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC FRONTIER CAPITAL MANAGEMENT CO INC 5.0% view
B 2000-02-11 00:00:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC CAPITAL GROUP INTERNATIONAL INC 5.9% view
S 2000-01-25 00:00:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC STATE OF WISCONSIN INVESTMENT BOARD 5.24% view
B 1999-10-08 00:00:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC EDF CAPITAL INVESTISSEMENT SA 7.65% view
S 1999-10-07 00:00:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC CHARTH SA 0.0% view
B 1999-02-02 00:00:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC STATE OF WISCONSIN INVESTMENT BOARD 6.47% view
S 1998-07-01 00:00:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC SOROS FUND MANAGEMENT LLC 4.86% view
S 1998-03-06 00:00:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC SOROS FUND MANAGEMENT LLC 6.34% view
S 1998-02-09 00:00:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC FMR CORP n/a view
B 1997-10-17 00:00:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC CHARTH SA 8.6% view
B 1997-02-10 00:00:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC FMR CORP n/a view
B 1997-01-08 00:00:00.0 AMERICAN SUPERCONDUCTOR CORP AMSC SOROS FUND MANAGEMENT LLC 7.76% view
* Institutions do not report transaction buy/sell types directly. To help members better understand the transactions, this column is filled by InsiderCow's best-effort interpretations.