MEDIDATA SOLUTIONS INC

CUSIP: 58471A105 Class: COM

OPPENHEIMER & CO INC's Holding History (CIK: 0000822581)

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

Q3 2014
Shares 4,750 Value ($000) $210 Avg Close — Range —
Q1 2014
Shares 17,833 Value ($000) $969 Avg Close — Range —
Q4 2013
Shares 17,580 Value ($000) $1,063 Avg Close — Range —
Q3 2013
Shares 6,575 Value ($000) $650 Avg Close — Range —