ONCOMED PHARMACEUTICALS INC

CUSIP: 68234X102 Class: COM

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

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

Q2 2018
Shares 8,500 Value ($000) $20 Avg Close — Range —
Q4 2016
Shares 4,503 Value ($000) $35 Avg Close — Range —
Q3 2016
Shares 4,998 Value ($000) $57 Avg Close — Range —
Q1 2016
Shares 965 Value ($000) $10 Avg Close — Range —
Q4 2015
Shares 4,841 Value ($000) $109 Avg Close — Range —
Q3 2015
Shares 27,230 Value ($000) $452 Avg Close — Range —