AMERICAN SUPERCONDUCTOR CORP

Ticker: AMSC CUSIP: 030111207 Class: Common Stock

MASSMUTUAL TRUST CO FSB/ADV's Holding History (CIK: 0001103653)

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

Q4 2025

Shares 3 Value ($000) $0 Avg Close $43.24 Range $28.68 - $70.49

Q3 2025

Shares 3 Value ($000) $0 Avg Close $49.99 Range $34.87 - $65.70

Q4 2022

Shares 50 Value ($000) $0 Avg Close $3.91 Range $3.20 - $4.92

Q3 2022

Shares 50 Value ($000) $0 Avg Close $5.18 Range $4.34 - $6.35

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	3	$0	$43.24	$28.68 - $70.49
Q3 2025	3	$0	$49.99	$34.87 - $65.70
Q4 2022	50	$0	$3.91	$3.20 - $4.92
Q3 2022	50	$0	$5.18	$4.34 - $6.35