OPHTHOTECH CORP

CUSIP: 683745103 Class: COM

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

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

Q1 2019
Shares 500 Value ($000) $1 Avg Close — Range —
Q4 2018
Shares 19,550 Value ($000) $24 Avg Close — Range —
Q3 2018
Shares 12,949 Value ($000) $30 Avg Close — Range —
Q4 2017
Shares 1,288 Value ($000) $4 Avg Close — Range —
Q3 2017
Shares 2,098 Value ($000) $6 Avg Close — Range —
Q2 2017
Shares 11,099 Value ($000) $28 Avg Close — Range —
Q4 2016
Shares 6,340 Value ($000) $30 Avg Close — Range —
Q3 2016
Shares 906 Value ($000) $42 Avg Close — Range —
Q1 2016
Shares 47 Value ($000) $2 Avg Close — Range —
Q1 2015
Shares 2,625 Value ($000) $122 Avg Close — Range —
Q3 2014
Shares 1 Value ($000) $0 Avg Close — Range —
Q2 2014
Shares 224 Value ($000) $9 Avg Close — Range —
Q1 2014
Shares 766 Value ($000) $27 Avg Close — Range —