ASTROTECH CORP

CUSIP: 46484101 Class: Equity

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q4 2014
Shares 900 Value ($000) $2 Avg Close — Range —
Q3 2014
Shares 1,000 Value ($000) $3 Avg Close — Range —