AMERICAN SUPERCONDUCTOR CORP

Ticker: AMSC CUSIP: 030111207 Class: Common Stock

EMERALD ADVISERS, LLC's Holding History (CIK: 0001015083)

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

Q4 2025

Shares 757,568 Value ($000) $21,803 Avg Close $43.24 Range $28.68 - $70.49

Q3 2025

Shares 521,183 Value ($000) $30,953 Avg Close $49.99 Range $34.87 - $65.70

Q2 2025

Shares 500,054 Value ($000) $18,347 Avg Close $24.58 Range $13.98 - $37.89

Q1 2025

Shares 38,719 Value ($000) $702 Avg Close $24.93 Range $17.08 - $35.44

Q4 2024

Shares 28,119 Value ($000) $693 Avg Close $27.58 Range $20.60 - $38.02

Q1 2021

Shares 15,084 Value ($000) $286 Avg Close $24.75 Range $16.85 - $31.78

Q4 2020

Shares 25,948 Value ($000) $608 Avg Close $17.73 Range $12.90 - $26.44

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	757,568	$21,803	$43.24	$28.68 - $70.49
Q3 2025	521,183	$30,953	$49.99	$34.87 - $65.70
Q2 2025	500,054	$18,347	$24.58	$13.98 - $37.89
Q1 2025	38,719	$702	$24.93	$17.08 - $35.44
Q4 2024	28,119	$693	$27.58	$20.60 - $38.02
Q1 2021	15,084	$286	$24.75	$16.85 - $31.78
Q4 2020	25,948	$608	$17.73	$12.90 - $26.44