AMERICAN SUPERCONDUCTOR CORP

Ticker: AMSC CUSIP: 030111207 Class: Common Stock

KING LUTHER CAPITAL MANAGEMENT CORP's Holding History (CIK: 0000310051)

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

Q4 2018

Shares 13,200 Value ($000) $147 Avg Close $8.55 Range $5.78 - $12.50

Q3 2018

Shares 14,000 Value ($000) $97 Avg Close $5.97 Range $4.84 - $7.50

Q2 2018

Shares 14,000 Value ($000) $98 Avg Close $6.54 Range $5.31 - $8.03

Q1 2018

Shares 14,000 Value ($000) $81 Avg Close $5.13 Range $3.62 - $6.51

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2018	13,200	$147	$8.55	$5.78 - $12.50
Q3 2018	14,000	$97	$5.97	$4.84 - $7.50
Q2 2018	14,000	$98	$6.54	$5.31 - $8.03
Q1 2018	14,000	$81	$5.13	$3.62 - $6.51