MEDIDATA SOLUTIONS INC

CUSIP: 58471A105 Class: COM

DISCIPLINED GROWTH INVESTORS INC /MN's Holding History (CIK: 0001050442)

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

Q3 2019
Shares 302,053 Value ($000) $27,638 Avg Close — Range —
Q2 2019
Shares 649,942 Value ($000) $58,826 Avg Close — Range —
Q1 2019
Shares 1,118,599 Value ($000) $81,926 Avg Close — Range —
Q4 2018
Shares 1,118,884 Value ($000) $75,435 Avg Close — Range —
Q3 2018
Shares 943,458 Value ($000) $69,165 Avg Close — Range —
Q2 2018
Shares 926,154 Value ($000) $74,611 Avg Close — Range —
Q1 2018
Shares 932,254 Value ($000) $58,555 Avg Close — Range —
Q4 2017
Shares 830,856 Value ($000) $52,651 Avg Close — Range —
Q3 2017
Shares 723,155 Value ($000) $56,449 Avg Close — Range —
Q2 2017
Shares 748,149 Value ($000) $58,505 Avg Close — Range —
Q1 2017
Shares 768,199 Value ($000) $44,317 Avg Close — Range —
Q4 2016
Shares 792,812 Value ($000) $39,379 Avg Close — Range —
Q3 2016
Shares 762,137 Value ($000) $42,497 Avg Close — Range —
Q2 2016
Shares 772,587 Value ($000) $36,211 Avg Close — Range —
Q1 2016
Shares 773,562 Value ($000) $29,945 Avg Close — Range —
Q4 2015
Shares 284,920 Value ($000) $14,044 Avg Close — Range —
Q3 2015
Shares 286,845 Value ($000) $12,079 Avg Close — Range —
Q2 2015
Shares 279,220 Value ($000) $15,167 Avg Close — Range —
Q1 2015
Shares 279,645 Value ($000) $13,714 Avg Close — Range —
Q4 2014
Shares 278,920 Value ($000) $13,318 Avg Close — Range —
Q3 2014
Shares 290,195 Value ($000) $12,853 Avg Close — Range —
Q2 2014
Shares 292,795 Value ($000) $12,535 Avg Close — Range —
Q1 2014
Shares 336,270 Value ($000) $18,273 Avg Close — Range —
Q4 2013
Shares 345,270 Value ($000) $20,890 Avg Close — Range —
Q3 2013
Shares 242,100 Value ($000) $23,951 Avg Close — Range —
Q2 2013
Shares 244,625 Value ($000) $18,946 Avg Close — Range —