AMERICAN SUPERCONDUCTOR CORP

CUSIP: 030111108 Class: COM

CHARLES SCHWAB INVESTMENT MANAGEMENT INC's Holding History (CIK: 0000884546)

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

Q1 2014
Shares 65,000 Value ($000) $105 Avg Close — Range —
Q4 2013
Shares 65,000 Value ($000) $107 Avg Close — Range —
Q3 2013
Shares 65,000 Value ($000) $148 Avg Close — Range —
Q2 2013
Shares 65,000 Value ($000) $180 Avg Close — Range —