What does CUSIP 030111207 represent in this 13F holders report?

CUSIP 030111207 is the security identifier for AMSC - AMERICAN SUPERCONDUCTOR CORP /DE/ - Common Stock used to aggregate holder disclosures.

How many institutions held AMSC - AMERICAN SUPERCONDUCTOR CORP /DE/ - Common Stock in Q4 2018?

64 institutional investors reported AMSC - AMERICAN SUPERCONDUCTOR CORP /DE/ - Common Stock for Q4 2018. Use the holders table for investor-level position and value details.

- Common Stock (AMSC)

CUSIP: 030111207

Q4 2018 13F Holders as of 31 Dec 2018

Type / Class: Equity / Common Stock
Shares outstanding: 47,657,189
Total 13F shares: 6,445,209
Share change: +1,170,639
Total reported value: $71,567,193
Put/Call ratio: 64%
Price per share: $11.15
Number of holders: 64
Value change: +$14,062,538
Number of buys: 32
Number of sells: 26

Quarterly Holders Quick Answers

What is CUSIP 030111207?
CUSIP 030111207 identifies AMSC - AMERICAN SUPERCONDUCTOR CORP /DE/ - Common Stock in SEC institutional holdings data.

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Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q1 2019
Previous quarter: Q3 2018

Recent filing periods for CUSIP 030111207:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of AMSC - AMERICAN SUPERCONDUCTOR CORP /DE/ - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
AWM Investment Company, Inc.	13F	Company	3.1%	1,496,068	$10,398,000	—	30 Sep 2018	13F
VANGUARD GROUP INC	13F	Company	1.6%	754,598	$5,244,000	—	30 Sep 2018	13F
Telemark Asset Management, LLC	13F	Company	1.1%	544,044	$3,781,000	—	30 Sep 2018	13F
ROYCE & ASSOCIATES LP	13F	Company	0.96%	455,500	$3,166,000	—	30 Sep 2018	13F
BlackRock Finance, Inc.	13F	Company	0.59%	281,606	$1,957,000	—	30 Sep 2018	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	0.35%	165,819	$1,152,000	—	30 Sep 2018	13F
Manatuck Hill Partners, LLC	13F	Company	0.28%	134,100	$932,000	—	30 Sep 2018	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.26%	124,221	$863,000	—	30 Sep 2018	13F
FIRST TRUST ADVISORS LP	13F	Company	0.23%	110,716	$769,000	—	30 Sep 2018	13F
BRIDGEWAY CAPITAL MANAGEMENT, LLC	13F	Company	0.23%	110,100	$765,000	—	30 Sep 2018	13F
Worth Venture Partners, LLC	13F	Company	0.2%	95,000	$660,000	—	30 Sep 2018	13F
D. E. Shaw & Co., Inc.	13F	Company	0.17%	79,057	$549,000	—	30 Sep 2018	13F
Invesco Ltd.	13F	Company	0.16%	77,600	$539,000	—	30 Sep 2018	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	0.15%	71,758	$499,000	—	30 Sep 2018	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	0.15%	69,175	$481,000	—	30 Sep 2018	13F
NORTHERN TRUST CORP	13F	Company	0.09%	44,001	$306,000	—	30 Sep 2018	13F
WOLVERINE TRADING, LLC	13F	Company	0.08%	36,293	$252,000	—	30 Sep 2018	13F
SUSQUEHANNA INTERNATIONAL GROUP, LLP	13F	Company	0.08%	36,239	$252,000	—	30 Sep 2018	13F
FIRST MANHATTAN CO. LLC.	13F	Company	0.07%	33,427	$232,000	—	30 Sep 2018	13F
GMT CAPITAL CORP	13F	Company	0.07%	31,100	$216,000	—	30 Sep 2018	13F
Bank of New York Mellon Corp	13F	Company	0.06%	30,610	$213,000	—	30 Sep 2018	13F
Summit Trail Advisors, LLC	13F	Company	0.06%	27,172	$189,000	—	30 Sep 2018	13F
UBS Group AG	13F	Company	0.05%	24,091	$167,000	—	30 Sep 2018	13F
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM	13F	Company	0.05%	22,580	$157,000	—	30 Sep 2018	13F
BARCLAYS PLC	13F	Company	0.05%	22,376	$155,000	—	30 Sep 2018	13F
GROUP ONE TRADING LLC	13F	Company	0.04%	19,760	$137,000	—	30 Sep 2018	13F
SCOPIA CAPITAL MANAGEMENT LP	13F	Company	0.04%	19,610	$136,000	—	30 Sep 2018	13F
WELLS FARGO & COMPANY/MN	13F	Company	0.04%	18,678	$130,000	—	30 Sep 2018	13F
Quinn Opportunity Partners LLC	13F	Company	0.03%	16,400	$114,000	—	30 Sep 2018	13F
RAYMOND JAMES & ASSOCIATES	13F	Company	0.03%	15,022	$104,000	—	30 Sep 2018	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.03%	14,064	$98,000	—	30 Sep 2018	13F
KING LUTHER CAPITAL MANAGEMENT CORP	13F	Company	0.03%	14,000	$97,000	—	30 Sep 2018	13F
CITADEL ADVISORS LLC	13F	Company	0.03%	12,952	$90,000	—	30 Sep 2018	13F
Concourse Capital Management, LLC	13F	Company	0.03%	12,943	$90,000	—	30 Sep 2018	13F
Alambic Investment Management, L.P.	13F	Company	0.03%	12,505	$87,000	—	30 Sep 2018	13F
SIMPLEX TRADING, LLC	13F	Company	0.02%	11,162	$77,000	—	30 Sep 2018	13F
Zurcher Kantonalbank (Zurich Cantonalbank)	13F	Company	0.01%	4,835	$34,000	—	30 Sep 2018	13F
MORGAN STANLEY	13F	Company	0.01%	3,877	$27,000	—	30 Sep 2018	13F
LADENBURG THALMANN FINANCIAL SERVICES INC.	13F	Company	0.01%	3,075	$21,000	—	30 Sep 2018	13F
PRELUDE CAPITAL MANAGEMENT, LLC	13F	Company	0%	2,100	$15,000	—	30 Sep 2018	13F
DEUTSCHE BANK AG\	13F	Company	0%	1,500	$10,000	—	30 Sep 2018	13F
Advisory Services Network, LLC	13F	Company	0%	1,100	$8,000	—	30 Sep 2018	13F
HUNTINGTON NATIONAL BANK	13F	Company	0%	1,047	$7,000	—	30 Sep 2018	13F
BANK OF MONTREAL /CAN/	13F	Company	0%	1,000	$7,000	—	30 Sep 2018	13F
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO	13F	Company	0%	954	$7,000	—	30 Sep 2018	13F
LORING WOLCOTT & COOLIDGE FIDUCIARY ADVISORS LLP/MA	13F	Company	0%	697	$5,000	—	30 Sep 2018	13F
Tower Research Capital LLC (TRC)	13F	Company	0%	689	$5,000	—	30 Sep 2018	13F
Independence Bank of Kentucky	13F	Company	0%	500	$3,000	—	30 Sep 2018	13F
THOMPSON DAVIS & CO., INC.	13F	Company	0%	500	$3,000	—	30 Sep 2018	13F
JPMORGAN CHASE & CO	13F	Company	0%	486	$3,000	—	30 Sep 2018	13F

Institutional Holders of AMERICAN SUPERCONDUCTOR CORP /DE/ - Common Stock (AMSC) as of Q4 2018

As of 31 Dec 2018, AMERICAN SUPERCONDUCTOR CORP /DE/ - Common Stock (AMSC) was held by 64 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 6,445,209 shares. The largest 10 holders included AWM Investment Company, Inc., Vanguard Group Inc, ROYCE & ASSOCIATES LP, Telemark Asset Management, LLC, EAM Investors, LLC, BlackRock Inc., D. E. Shaw & Co., Inc., Erste Asset Management GmbH, Worth Venture Partners, LLC, and EAM Global Investors LLC. This page lists 64 institutional shareholders reporting positions in this security for the Q4 2018 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q4 2018 vs Q3 2018 Across Filers

Q3 2018 holders

Q4 2018 holders

Holder diff

Investor	Q3 2018 Shares	Q4 2018 Shares	Share Diff	Share Chg %	Q3 2018 Value $	Q4 2018 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.