MEDIDATA SOLUTIONS INC

CUSIP: 58471AAB1 Class: CONV

MACKAY SHIELDS LLC's Holding History (CIK: 0000061227)

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

Q2 2018
Shares 900,000 Value ($000) $1,255 Avg Close — Range —
Q1 2018
Shares 720,000 Value ($000) $812 Avg Close — Range —
Q4 2017
Shares 720,000 Value ($000) $835 Avg Close — Range —
Q3 2017
Shares 720,000 Value ($000) $995 Avg Close — Range —
Q4 2016
Shares 22,000 Value ($000) $24 Avg Close — Range —
Q3 2016
Shares 39,422,000 Value ($000) $46,225 Avg Close — Range —
Q2 2016
Shares 39,491,000 Value ($000) $42,974 Avg Close — Range —
Q1 2016
Shares 39,461,000 Value ($000) $40,203 Avg Close — Range —
Q4 2015
Shares 39,228,000 Value ($000) $42,959 Avg Close — Range —
Q3 2015
Shares 37,261,000 Value ($000) $39,450 Avg Close — Range —
Q2 2015
Shares 32,224,000 Value ($000) $38,226 Avg Close — Range —
Q1 2015
Shares 31,942,000 Value ($000) $36,174 Avg Close — Range —
Q4 2014
Shares 15,470,000 Value ($000) $17,036 Avg Close — Range —
Q3 2014
Shares 15,470,000 Value ($000) $16,708 Avg Close — Range —