MEDIDATA SOLUTIONS INC

CUSIP: 58471A105 Class: COM

BAMCO INC /NY/'s Holding History (CIK: 0001017918)

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

Q3 2015
Shares 22,219 Value ($000) $936 Avg Close — Range —
Q2 2015
Shares 122,944 Value ($000) $6,678 Avg Close — Range —
Q1 2015
Shares 147,353 Value ($000) $7,226 Avg Close — Range —
Q4 2014
Shares 189,579 Value ($000) $9,052 Avg Close — Range —
Q3 2014
Shares 193,346 Value ($000) $8,563 Avg Close — Range —
Q2 2014
Shares 230,635 Value ($000) $9,873 Avg Close — Range —
Q1 2014
Shares 518,040 Value ($000) $28,150 Avg Close — Range —
Q4 2013
Shares 121,000 Value ($000) $7,329 Avg Close — Range —