AMERICAN SUPERCONDUCTOR CORP

Ticker: AMSC CUSIP: 030111207 Class: Common Stock

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

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

Q3 2025

Shares 399,246 Value ($000) $23,711 Avg Close $49.99 Range $34.87 - $65.70

Q2 2025

Shares 431,589 Value ($000) $15,835 Avg Close $24.58 Range $13.98 - $37.89

Q1 2025

Shares 289,173 Value ($000) $5,246 Avg Close $24.93 Range $17.08 - $35.44

Q4 2024

Shares 461,230 Value ($000) $11,360 Avg Close $27.58 Range $20.60 - $38.02

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	399,246	$23,711	$49.99	$34.87 - $65.70
Q2 2025	431,589	$15,835	$24.58	$13.98 - $37.89
Q1 2025	289,173	$5,246	$24.93	$17.08 - $35.44
Q4 2024	461,230	$11,360	$27.58	$20.60 - $38.02