SIMPLEX TRADING, LLC - MEDIDATA SOLUTIONS INC ownership

MEDIDATA SOLUTIONS INC's ticker is MDSO and the CUSIP is 58471A105. A total of 203 filers reported holding MEDIDATA SOLUTIONS INC in Q3 2015. The put-call ratio across all filers is 0.42 and the average weighting 0.2%.

Quarter-by-quarter ownership
SIMPLEX TRADING, LLC ownership history of MEDIDATA SOLUTIONS INC
ValueSharesWeighting
Q3 2019$47,000
-97.3%
518
-97.3%
0.00%
-100.0%
Q2 2019$1,727,000
+1662.2%
19,086
+1320.1%
0.01%
Q1 2019$98,000
-77.9%
1,344
-79.6%
0.00%
-100.0%
Q4 2018$444,000
+37.0%
6,590
+48.9%
0.00%0.0%
Q3 2018$324,000
+2.5%
4,425
-11.4%
0.00%
-92.9%
Q4 2017$316,000
+39.8%
4,997
+9.8%
0.01%0.0%
Q4 2016$226,000
+145.7%
4,552
+173.9%
0.01%
+133.3%
Q3 2016$92,000
-22.0%
1,662
-31.0%
0.01%
-33.3%
Q4 2015$118,000
+45.7%
2,410
+24.6%
0.01%
+50.0%
Q3 2015$81,000
+170.0%
1,934
+208.0%
0.01%
+50.0%
Q4 2014$30,0006280.00%
Other shareholders
MEDIDATA SOLUTIONS INC shareholders Q3 2015
NameSharesValueWeighting ↓
Brown Capital Management 5,339,762$338,381,0004.11%
Global Thematic Partners, LLC 1,429,138$90,564,0002.98%
AMERICAN CAPITAL MANAGEMENT INC 514,912$32,630,0001.96%
Ranger Investment Management 397,446$25,186,0001.85%
Conestoga Capital Advisors, LLC 735,957$46,638,0001.79%
ASHFORD CAPITAL MANAGEMENT INC 178,895$11,337,0001.76%
ARK Investment Management 326,079$20,664,0001.65%
Champlain Investment Partners, LLC 1,856,985$117,677,0001.33%
Malaga Cove Capital, LLC 37,601$2,383,0001.33%
Stephens Investment Management Group LLC 822,040$52,093,0001.19%
View complete list of MEDIDATA SOLUTIONS INC shareholders