OPHTHOTECH CORP

CUSIP: 683745103 Class: COM

DIMENSIONAL FUND ADVISORS LP's Holding History (CIK: 0000354204)

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

Q1 2019
Shares 366,100 Value ($000) $516 Avg Close — Range —
Q4 2018
Shares 806,610 Value ($000) $968 Avg Close — Range —
Q3 2018
Shares 958,137 Value ($000) $2,261 Avg Close — Range —
Q2 2018
Shares 867,096 Value ($000) $2,367 Avg Close — Range —
Q1 2018
Shares 563,271 Value ($000) $1,543 Avg Close — Range —
Q4 2017
Shares 186,004 Value ($000) $580 Avg Close — Range —