American Superconductor Corp /DE/

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American Superconductor Corp /DE/
TickerAMSC
CIK #0000880807
CUSIP030111207
SectorManufacturing - Motors & Generators
AddressSixty Four Jackson Road, Devens, MA 01434
Source [EDGAR]
CIK Filing 2011 - 2024
[0000880807] 10-K
[0000880807] 10-Q
[0000880807] 3
[0000880807] 4
[0000880807] 8-K
[0000880807] D
[0000880807] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
AWM Investment Company Inc American Superconductor Corp /DE/ [2023-02-14] 8.7
Royce & Associates LP American Superconductor Corp /DE/ [2023-01-31] 5.69
BlackRock Inc American Superconductor Corp /DE/ [2022-07-08] 1.8
Footprints Asset Management & Research American Superconductor Corp /DE/ [2022-02-14] 1.82
Baillie Gifford & Co American Superconductor Corp /DE/ [2022-01-18] 5.25
Invesco Ltd American Superconductor Corp /DE/ [2021-02-16] 6.9
Renaissance Technologies LLC American Superconductor Corp /DE/ [2020-02-12] 5.67
BlackRock Inc American Superconductor Corp /DE/ [2020-02-07] 6.5
Douglas Kevin American Superconductor Corp /DE/ [2020-01-27] 0.4
Integrated Core Strategies US LLC American Superconductor Corp /DE/ [2019-06-24] 0.3
Footprints Asset Management & Research American Superconductor Corp /DE/ [2019-02-14] 5.8
Hirschman Orin American Superconductor Corp /DE/ [2019-02-08] 9.9
Hirschman Orin American Superconductor Corp /DE/ [2018-10-05] 4.95
Satterfield Thomas A Jr American Superconductor Corp /DE/ [2018-03-08] 5.0
AWM Investment Company Inc American Superconductor Corp /DE/ [2018-02-13] 5.5
Ardsley Advisory Partners American Superconductor Corp /DE/ [2017-05-08] 7.4
Footprints Asset Management & Research American Superconductor Corp /DE/ [2016-02-12] 5.7
AWM Investment Company Inc American Superconductor Corp /DE/ [2016-02-11] 9.8
BlackRock Inc American Superconductor Corp /DE/ [2014-01-28] 5.5
Capital Ventures International /E9/ American Superconductor Corp /DE/ [2012-12-31] 0.9
Form 3/4/5 Filer 2011 - 2024
Littlefield Barbara G.
American Superconductor Corp /DE/
Dambier Laura A.
Oliver David R Jr
Klein Margaret D.
House Arthur H
Kosiba John W JR
McGahn Daniel P
Budhraja Vikram S
Wood John W Jr
Lenehan Pamela F
Sande John Vander
Maguire James F
Henry David A
Douglas James E III
Douglas Kevin
Douglas Michelle
Douglas Family Trust
James & Jean Douglas Irrevocable Descendants Trust
Drouin Richard
Poor Timothy D.
DiCecco Susan J
Form 13F Holdings
Firm Period DFND Voting Shares
AWM Investment Company Inc [2023-03-31] SOLE 2,536,283.0 2,536,283.0
Royce & Associates LP [2023-03-31] SOLE 1,811,771.0 1,811,771.0
Vanguard Group Inc [2023-03-31] SOLE 0.0 1,235,002.0
Invesco Ltd. [2023-03-31] DFND 0.0 835,037.0
Baillie Gifford & Co [2023-03-31] SOLE 768,000.0 768,000.0
Baillie Gifford & Co [2023-03-31] DFND 723,370.0 723,370.0
KBC Group NV [2023-03-31] DFND 0.0 632,089.0
ArrowMark Colorado Holdings LLC [2023-03-31] SOLE 569,432.0 569,432.0
BlackRock Inc. [2023-03-31] SOLE 477,486.0 478,804.0
Dimensional Fund Advisors LP [2023-03-31] SOLE 438,217.0 467,594.0
CM Management LLC [2023-03-31] SOLE 350,000.0 350,000.0
D. E. Shaw & Co., Inc. [2023-03-31] DFND 338,070.0 338,070.0
Geode Capital Management LLC [2023-03-31] DFND 288,751.0 288,751.0
First Trust Advisors LP [2023-03-31] SOLE 261,526.0 261,526.0
GSA Capital Partners LLP [2023-03-31] SOLE 196,323.0 196,323.0
Susquehanna International Group LLP [2023-03-31] DFND 141,979.0 174,879.0
State Street Corp [2023-03-31] DFND 108,796.0 108,796.0
GMT Capital Corp [2023-03-31] SOLE 108,066.0 108,066.0
Citadel Advisors LLC [2023-03-31] DFND 98,876.0 98,876.0
Bridgeway Capital Management LLC [2023-03-31] SOLE 91,200.0 91,200.0
JPMorgan Chase & Co [2023-03-31] DFND 89,938.0 89,938.0
Merit Financial Group LLC [2023-03-31] SOLE 0.0 74,954.0
Quinn Opportunity Partners LLC [2023-03-31] SOLE 39,258.0 62,661.0
Renaissance Technologies LLC [2023-03-31] SOLE 56,600.0 56,600.0
Group One Trading LP [2023-03-31] SOLE 55,423.0 55,423.0
Morgan Stanley [2023-03-31] DFND 41,731.0 54,914.0
Jane Street Group LLC [2023-03-31] DFND 54,074.0 54,074.0
Northern Trust Corp [2023-03-31] DFND 93.0 52,743.0
Millennium Management LLC [2023-03-31] SOLE 40,459.0 40,459.0
Royal Bank of Canada [2023-03-31] DFND 40,384.0 40,384.0
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