MEDIDATA SOLUTIONS INC

CUSIP: 58471A105 Class: COM

CASTLEARK MANAGEMENT LLC's Holding History (CIK: 0001106832)

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

Q4 2016
Shares 190,040 Value ($000) $9,439 Avg Close — Range —
Q3 2016
Shares 231,145 Value ($000) $12,889 Avg Close — Range —
Q3 2015
Shares 194,756 Value ($000) $8,201 Avg Close — Range —
Q2 2015
Shares 203,375 Value ($000) $11,047 Avg Close — Range —
Q2 2013
Shares 84,982 Value ($000) $6,582 Avg Close — Range —