AMSC - American Superconductor Corporation

NasdaqGS - NasdaqGS Real Time Price. Currency in USD

Major Holders

Currency in USD
Breakdown
14.12%% of Shares Held by All Insider
33.04%% of Shares Held by Institutions
38.47%% of Float Held by Institutions
74Number of Institutions Holding Shares
Direct Holders (Forms 3 and 4)
NameSharesDate Reported
MCGAHN DANIEL P350,568Jul 26, 2017
KOSIBA JOHN W JR108,553Jul 27, 2017
HENRY DAVID A61,929Jul 30, 2016
MAGUIRE JAMES F44,446Jul 30, 2016
BUDHRAJA VIKRAM S35,481May 9, 2017
WOOD JOHN W JR25,631May 9, 2017
SANDE JOHN VANDER22,234Jul 25, 2017
LENEHAN PAMELA F17,681Apr 4, 2017
OLIVER DAVID R JR17,321Apr 4, 2017
HOUSE ARTHUR H5,277Apr 4, 2017

Top Institutional Holders

HolderSharesDate Reported% OutValue
Ardsley Advisory Partners1,835,000Sep 29, 20178.77%8,092,349
AWM Investment Company, Inc.603,364Sep 29, 20172.88%2,660,835
Renaissance Technologies, LLC554,288Sep 29, 20172.65%2,444,409
Telemark Asset Management, LLC544,044Sep 29, 20172.60%2,399,233
Vanguard Group, Inc. (The)518,159Sep 29, 20172.48%2,285,081
Royce & Associates LP369,300Sep 29, 20171.76%1,628,612
Blackrock Inc.263,760Sep 29, 20171.26%1,163,181
Millennium Management LLC195,516Sep 29, 20170.93%862,225
Wolverine Asset Management, LLC181,994Sep 29, 20170.87%802,593
Bridgeway Capital Management, Inc.135,100Sep 29, 20170.65%595,790

Top Mutual Fund Holders

HolderSharesDate Reported% OutValue
Northern Lights Fd Tr III-Footprints Discover Value Fd195,000Jun 29, 20170.93%889,199
Vanguard Extended Market Index Fund181,820Jun 29, 20170.87%829,099
Vanguard Total Stock Market Index Fund165,242Jun 29, 20170.79%753,503
PowerShares Exchange Traded Funds Tr-PwrShs Wilderhill Clean Energy125,020Sep 29, 20170.60%551,338
Royce Micro-Cap Fund89,300Mar 30, 20170.43%565,268
Fidelity Extended Market Index Fund66,860Aug 30, 20170.32%258,748
Nationwide Var Ins Tr-Multi Manager NVIT Small Company Fd49,545Mar 30, 20170.24%313,619
Bridgeway Funds Inc-Ultra Small Company Market Fund45,100Jun 29, 20170.22%205,655
Vanguard Institutional Index-Inst Total Stock Market Ind35,215Jun 29, 20170.17%160,580
iShares Micro Cap ETF32,045Aug 30, 20170.15%124,014