ZOLTEK COS INC

CUSIP: 98975W104 Class: CMN

Tower Research Capital LLC (TRC)'s Holding History (CIK: 0001533421)

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

Q3 2013
Shares 1,494 Value ($000) $25 Avg Close — Range —
Q2 2013
Shares 363 Value ($000) $5 Avg Close — Range —