AMERICAN SUPERCONDUCTOR CORP

Ticker: AMSC CUSIP: 030111207 Class: Common Stock

DRIEHAUS CAPITAL MANAGEMENT LLC's Holding History (CIK: 0000938206)

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

Q4 2025

Shares 499,984 Value ($000) $14,390 Avg Close $43.24 Range $28.68 - $70.49

Q3 2025

Shares 1,218,944 Value ($000) $72,393 Avg Close $49.99 Range $34.87 - $65.70

Q2 2025

Shares 839,847 Value ($000) $30,814 Avg Close $24.58 Range $13.98 - $37.89

Q1 2025

Shares 839,843 Value ($000) $15,235 Avg Close $24.93 Range $17.08 - $35.44

Q4 2024

Shares 942,698 Value ($000) $23,219 Avg Close $27.58 Range $20.60 - $38.02

Q3 2024

Shares 798,762 Value ($000) $18,851 Avg Close $23.05 Range $17.02 - $32.70

Q2 2024

Shares 921,998 Value ($000) $21,566 Avg Close $16.52 Range $11.36 - $27.38

Q1 2024

Shares 931,979 Value ($000) $12,591 Avg Close $12.40 Range $9.37 - $15.24

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	499,984	$14,390	$43.24	$28.68 - $70.49
Q3 2025	1,218,944	$72,393	$49.99	$34.87 - $65.70
Q2 2025	839,847	$30,814	$24.58	$13.98 - $37.89
Q1 2025	839,843	$15,235	$24.93	$17.08 - $35.44
Q4 2024	942,698	$23,219	$27.58	$20.60 - $38.02
Q3 2024	798,762	$18,851	$23.05	$17.02 - $32.70
Q2 2024	921,998	$21,566	$16.52	$11.36 - $27.38
Q1 2024	931,979	$12,591	$12.40	$9.37 - $15.24