ZOLTEK COS INC

CUSIP: 98975W104 Class: CMN

TEACHER RETIREMENT SYSTEM OF TEXAS's Holding History (CIK: 0000796848)

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

Q4 2013
Shares 1,090 Value ($000) $18 Avg Close — Range —
Q3 2013
Shares 3,813 Value ($000) $64 Avg Close — Range —
Q2 2013
Shares 1,989 Value ($000) $26 Avg Close — Range —