MEDIVATION INC

CUSIP: 58501N101 Class: COM

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

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

Q1 2016
Shares 33,459 Value ($000) $1,538 Avg Close — Range —
Q4 2015
Shares 53,942 Value ($000) $2,608 Avg Close — Range —
Q3 2015
Shares 70,364 Value ($000) $2,990 Avg Close — Range —
Q4 2014
Shares 7,966 Value ($000) $793 Avg Close — Range —
Q3 2014
Shares 9,095 Value ($000) $899 Avg Close — Range —
Q2 2014
Shares 8,239 Value ($000) $635 Avg Close — Range —
Q1 2014
Shares 19,181 Value ($000) $1,235 Avg Close — Range —
Q4 2013
Shares 17,284 Value ($000) $1,103 Avg Close — Range —
Q3 2013
Shares 26,664 Value ($000) $1,598 Avg Close — Range —
Q2 2013
Shares 20,341 Value ($000) $1,001 Avg Close — Range —