TOWER GROUP INTL LTD

CUSIP: G8988C105 Class: COM

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

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

Q2 2014
Shares 167,983 Value ($000) $302 Avg Close — Range —
Q1 2014
Shares 96,031 Value ($000) $259 Avg Close — Range —
Q4 2013
Shares 227,908 Value ($000) $770 Avg Close — Range —
Q3 2013
Shares 31,300 Value ($000) $219 Avg Close — Range —