MEDIDATA SOLUTIONS INC

CUSIP: 58471A105 Class: COM

GLOBEFLEX CAPITAL L P's Holding History (CIK: 0000921531)

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

Q4 2013
Shares 17,400 Value ($000) $1,052 Avg Close — Range —
Q3 2013
Shares 8,700 Value ($000) $860 Avg Close — Range —
Q2 2013
Shares 8,700 Value ($000) $673 Avg Close — Range —