PSIVIDA CORP

CUSIP: 74440J101 Class: COM

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

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

Q1 2018
Shares 1,568 Value ($000) $2 Avg Close — Range —
Q4 2017
Shares 4,068 Value ($000) $4 Avg Close — Range —
Q3 2017
Shares 11,168 Value ($000) $13 Avg Close — Range —
Q2 2017
Shares 28,633 Value ($000) $49 Avg Close — Range —
Q1 2017
Shares 23,240 Value ($000) $40 Avg Close — Range —
Q4 2016
Shares 6,416 Value ($000) $11 Avg Close — Range —
Q2 2016
Shares 10,909 Value ($000) $31 Avg Close — Range —
Q4 2015
Shares 36,173 Value ($000) $174 Avg Close — Range —
Q3 2015
Shares 26,149 Value ($000) $95 Avg Close — Range —
Q2 2015
Shares 11,328 Value ($000) $43 Avg Close — Range —
Q4 2014
Shares 7,970 Value ($000) $33 Avg Close — Range —
Q2 2014
Shares 45,781 Value ($000) $199 Avg Close — Range —
Q1 2014
Shares 69,891 Value ($000) $287 Avg Close — Range —
Q4 2013
Shares 55,381 Value ($000) $220 Avg Close — Range —
Q3 2013
Shares 11,223 Value ($000) $46 Avg Close — Range —