AMERICAN SUPERCONDUCTOR CORP

Ticker: AMSC CUSIP: 030111207 Class: Common Stock

Mariner, LLC's Holding History (CIK: 0001373442)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 20,563 Value ($000) $592 Avg Close $43.24 Range $28.68 - $70.49

Q3 2025

Shares 13,227 Value ($000) $786 Avg Close $49.99 Range $34.87 - $65.70

Q2 2025

Shares 12,295 Value ($000) $451 Avg Close $24.58 Range $13.98 - $37.89

Q4 2024

Shares 8,207 Value ($000) $202 Avg Close $27.58 Range $20.60 - $38.02

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	20,563	$592	$43.24	$28.68 - $70.49
Q3 2025	13,227	$786	$49.99	$34.87 - $65.70
Q2 2025	12,295	$451	$24.58	$13.98 - $37.89
Q4 2024	8,207	$202	$27.58	$20.60 - $38.02