American Superconductor Corp

AMSCNASDAQ
$30.05
-1.11-3.56%
At close: Aug 20, 5:00 PM EST
$29.75
-0.30-1%
After Hours: 7:06 PM EST

American Superconductor Ownership & Insider Activity

American Superconductor (AMSC) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 5.8% of shares outstanding. Institutional investors hold 48.7%. Over the past 90 days, insiders made 7 sales worth $7.8M.

Shares Outstanding

48.442M

Shares Float

46.733M

Insider Shares Owned

2.818M

Insider % Owned

5.8%

Institutional Shares Held

23.608M

Institutional % Held

48.7%

Ownership Breakdown

Net Insider Activity by Month

Purchases (90d)

0

Sales (90d)

7

$7.8M total

Net Activity

Net Selling

Net Value (90d)

-$7.8M

American Superconductor Insider Transactions (Last 6 Months)

DateInsiderTitleTypeSharesPriceValue
Jun 11, 2026Laura DambierSELL4.000K$37.63$151K
Jun 11, 2026John W. Kosiba Jr.SVP, CFO & TREASURERSELL6.769K$37.46$254K