A.R.T. Advisors, LLC - MEDICINES CO ownership

MEDICINES CO's ticker is MDCO and the CUSIP is 584688105. A total of 176 filers reported holding MEDICINES CO in Q2 2015. The put-call ratio across all filers is 1.52 and the average weighting 0.2%.

Quarter-by-quarter ownership
A.R.T. Advisors, LLC ownership history of MEDICINES CO
ValueSharesWeighting
Q4 2018$218,000
-72.0%
11,400
-46.2%
0.01%
-56.2%
Q2 2018$778,000
-65.3%
21,200
-68.9%
0.03%
-64.4%
Q1 2018$2,243,000
+296.3%
68,100
+357.0%
0.09%
+200.0%
Q2 2017$566,000
-79.8%
14,900
-79.8%
0.03%
-71.2%
Q3 2015$2,805,000
-5.1%
73,917
-28.5%
0.10%
+5.1%
Q2 2015$2,956,000
-1.1%
103,342
-3.1%
0.10%
-3.9%
Q1 2015$2,989,000
-16.5%
106,702
-33.5%
0.10%
-37.6%
Q3 2014$3,578,000
+169.4%
160,349
+250.8%
0.16%
+139.1%
Q2 2014$1,328,000
+84.2%
45,711
+80.0%
0.07%
+81.6%
Q1 2014$721,000
-66.3%
25,399
-54.2%
0.04%
-66.7%
Q4 2013$2,142,00055,4750.11%
Other shareholders
MEDICINES CO shareholders Q2 2015
NameSharesValueWeighting ↓
Sarissa Capital Management LP 4,202,000$356,917,00029.62%
SYQUANT CAPITAL SAS 505,030$42,897,00022.09%
Moab Capital Partners 521,987$44,338,00017.51%
Antipodean Advisors LLC 321,000$27,266,00015.60%
RAMIUS ADVISORS LLC 419,826$35,660,00015.34%
DLD Asset Management, LP 3,275,900$278,255,00015.00%
Foresite Capital Management IV, LLC 403,217$34,249,00014.78%
WHITE SQUARE CAPITAL LLP 239,331$20,329,00014.70%
Davide Leone & Partners Investment Co Ltd. 1,146,192$97,358,00012.50%
Quad Capital Management Advisors LLC 8,640$734,00011.19%
View complete list of MEDICINES CO shareholders