Calamos Advisors LLC - MEDIDATA SOLUTIONS INC ownership

MEDIDATA SOLUTIONS INC's ticker is MDSO and the CUSIP is 58471A105. A total of 191 filers reported holding MEDIDATA SOLUTIONS INC in Q4 2014. The put-call ratio across all filers is 0.73 and the average weighting 0.2%.

Quarter-by-quarter ownership
Calamos Advisors LLC ownership history of MEDIDATA SOLUTIONS INC
ValueSharesWeighting
Q3 2014$21,617,000
-6.6%
488,075
-9.7%
0.14%
-2.0%
Q2 2014$23,148,000
-16.8%
540,709
+5.6%
0.15%
-17.4%
Q1 2014$27,824,000
-9.2%
512,033
+1.2%
0.18%
-8.7%
Q4 2013$30,648,000
+15.8%
505,995
+89.2%
0.20%
+17.5%
Q3 2013$26,462,000
+43.7%
267,480
+12.5%
0.17%
+38.3%
Q2 2013$18,416,000237,7810.12%
Other shareholders
MEDIDATA SOLUTIONS INC shareholders Q4 2014
NameSharesValueWeighting ↓
Global Thematic Partners, LLC 993,386$66,974,0003.64%
Brown Capital Management 4,102,664$276,602,0003.33%
ARK Investment Management 936,559$63,143,0002.56%
ASHFORD CAPITAL MANAGEMENT INC 228,486$15,405,0002.52%
Nikko Asset Management Americas, Inc. 1,078,390$72,705,0002.51%
AMERICAN CAPITAL MANAGEMENT INC 682,695$46,027,0002.46%
Ownership Capital B.V. 546,553$36,849,0002.36%
Ranger Investment Management 410,247$27,659,0002.26%
Bryn Mawr Capital Management, LLC 32,903$2,218,0002.02%
ZEVENBERGEN CAPITAL INVESTMENTS LLC 671,916$45,301,0001.97%
View complete list of MEDIDATA SOLUTIONS INC shareholders