American Superconductor Ownership & Insider Activity

American Superconductor Corp

AMSCNASDAQ

$28.19

0.562.03%

Dern. MÀJ: Oct 28, 5:33 PM

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

Insiders own 5.8% of shares outstanding. Institutional investors hold 49.3%.

Shares Outstanding

48.442M

Shares Float

46.733M

Insider Shares Owned

2.819M

Insider % Owned

5.8%

Institutional Shares Held

23.902M

Institutional % Held

49.3%

Ownership Breakdown

Net Insider Activity by Month

Date	Insider	Title	Type	Shares	Price	Value
Jun 11, 2026	Laura Dambier	—	SELL	4.000K	$37.63	$151K
Jun 11, 2026	John W. Kosiba Jr.	SVP, CFO & TREASURER	SELL	6.769K	$37.46	$254K
Jun 11, 2026	Daniel P McGahn	CHAIRMAN, PRESIDENT AND CEO	SELL	16.117K	$37.45	$604K
Jun 8, 2026	John W. Kosiba Jr.	SVP, CFO & TREASURER	SELL	4.835K	$41.77	$202K
Jun 8, 2026	Daniel P McGahn	CHAIRMAN, PRESIDENT AND CEO	SELL	9.670K	$41.78	$404K
Jun 1, 2026	John W. Kosiba Jr.	SVP, CFO & TREASURER	SELL	6.909K	$50.45	$1.9M
Jun 1, 2026	Daniel P McGahn	CHAIRMAN, PRESIDENT AND CEO	SELL	25.418K	$50.49	$4.3M