MEDIDATA SOLUTIONS INC

CUSIP: 58471A105 Class: COM

SIMPLEX TRADING, LLC's Holding History (CIK: 0001488542)

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

Q3 2019
Shares 518 Value ($000) $47 Avg Close — Range —
Q2 2019
Shares 19,086 Value ($000) $1,727 Avg Close — Range —
Q1 2019
Shares 1,344 Value ($000) $98 Avg Close — Range —
Q4 2018
Shares 6,590 Value ($000) $444 Avg Close — Range —
Q3 2018
Shares 4,425 Value ($000) $324 Avg Close — Range —
Q4 2017
Shares 4,997 Value ($000) $316 Avg Close — Range —
Q4 2016
Shares 4,552 Value ($000) $226 Avg Close — Range —
Q3 2016
Shares 1,662 Value ($000) $92 Avg Close — Range —
Q4 2015
Shares 2,410 Value ($000) $118 Avg Close — Range —
Q3 2015
Shares 1,934 Value ($000) $81 Avg Close — Range —
Q4 2014
Shares 628 Value ($000) $30 Avg Close — Range —