AMERICAN SUPERCONDUCTOR CORP

CUSIP: 030111108 Class: COM

ALLIANCEBERNSTEIN L.P.'s Holding History (CIK: 0001109448)

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

Q1 2014
Shares 454 Value ($000) $1 Avg Close — Range —
Q4 2013
Shares 454 Value ($000) $1 Avg Close — Range —
Q3 2013
Shares 40,760 Value ($000) $95 Avg Close — Range —
Q2 2013
Shares 58,406 Value ($000) $154 Avg Close — Range —