AMSC

AMERICAN SUPERCONDUCTOR CORP /DE/

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Industrials · Specialty Industrial Machinery

$29.31

−$1.13−3.71%

Delayed · 2026-09-09T20:00:00.000Z · marketstack

1 of 47tracked managers hold this· Q2 2026

Aug 10, 2026$29.31

−$1.68−5.42%over 1M

Day range2% of range

$29.28$30.65

Session

Previous close: $30.44
Open: $30.14
Volume: 900.75K
Avg volume: -
Day high: $30.65
Day low: $29.28

Fundamentals

Visualize fundamentals and more

Market cap: 1.35B
P/E ratio: 10.11
EPS (TTM): $2.90
Dividend yield: -
Beta: 3.25
Shares outstanding: 46M

Source SEC EDGAR · 9/9/2026

Tracked investors

As of Q2 2026 · 72 days ago · next update ~14 Nov 2026· what moved this quarter, onMeasure

1 fund manager this platform follows disclosed a position here, from quarterly SEC filings up to 45 days old; a manager may have sold since without yet having to say so.

Baillie Gifford
Baillie Gifford & Co
$38.74M
0.04%of book

Manager	Position	Share of their book	Last change
Baillie Gifford Baillie Gifford & Co	$38.74M	0.04%

Share price, with each quarter a tracked manager’s position changed shaded across the range it traded in.

204060

now

Q3 '24

Q4 '24

Q1 '25

Q2 '25

Q3 '25

Q4 '25

Q1 '26

Q2 '26

Hover a shaded quarter to see it moved. Who, and the range they traded in, is onBespoke

13F filings cover US-listed shares only (not cash, bonds, shorts, or private holdings) and are never a recommendation to do the same.

Recent activity

Jun 30Baillie Gifford trimmed AMSCTracked manager13Fas of the quarter ended 2026-06-30
Jun 2Kosiba John W JR sold 30,462 sharesInsider tradingForm 4SVP, CFO & Treasurer, about $1.5M, pre-planned (10b5-1)
Jun 2McGahn Daniel P sold 72,525 sharesInsider tradingForm 4Chairman, President and CEO, about $3.7M, pre-planned (10b5-1)

3 more events, included withMeasure

Discussion

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Ask about AMERICAN SUPERCONDUCTOR CORP /DE/

The assistant answers from what AMSC has actually filed: 21 annual reports filed with the SEC, 33 Form 4 filings from the last year, 13F positions from the 1 tracked investor who hold it and 2 funds that hold it. Every figure in a reply links to the filing it came from, so an answer can be checked rather than believed.

Pressing one answers it here, from AMSC's filings and figures. One a day without an account; a free account has its own, and no card.

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What an account lets you do with AMERICAN SUPERCONDUCTOR CORP /DE/

Separate the decisions from the paperwork
Every Form 4 AMSC insiders have filed, with vesting and automatic tax sales struck out: what's left is the buys and sells somebody actually chose to make.
Every filingMeasure
Watch the same stakes the professionals are watching
Every tracked position priced at the quarter it was filed and diffed against the one before it: who added, who trimmed, who walked away.
Every position they holdMeasure
Interrogate the filing, not the internet
Ask anything about AMERICAN SUPERCONDUCTOR CORP /DE/'s fundamentals. The assistant answers from its own filings and cites the figure, never a guess from the open web.

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