SIMPLEX TRADING, LLC - MEDICINES CO ownership

MEDICINES CO's ticker is MDCO and the CUSIP is 584688105. A total of 204 filers reported holding MEDICINES CO in Q4 2016. The put-call ratio across all filers is 2.04 and the average weighting 0.4%.

Quarter-by-quarter ownership
SIMPLEX TRADING, LLC ownership history of MEDICINES CO
ValueSharesWeighting
Q4 2019$254,000
-83.1%
3,000
-92.7%
0.00%
-75.0%
Q2 2019$1,499,000
+215.6%
41,125
+141.7%
0.00%
+300.0%
Q1 2019$475,000
+2694.1%
17,013
+2735.5%
0.00%
Q3 2018$17,000
-98.6%
600
-98.2%
0.00%
-100.0%
Q3 2017$1,205,000
+361.7%
32,549
+373.7%
0.05%
+345.5%
Q2 2017$261,000
-85.2%
6,871
-80.9%
0.01%
-85.5%
Q1 2017$1,761,000
+686.2%
36,020
+443.8%
0.08%
+484.6%
Q4 2016$224,000
-85.1%
6,624
-83.3%
0.01%
-87.3%
Q3 2016$1,499,000
+426.0%
39,737
+367.9%
0.10%
+436.8%
Q2 2016$285,000
+60.1%
8,492
+77.5%
0.02%
+35.7%
Q4 2015$178,000
-27.3%
4,784
-26.1%
0.01%
-22.2%
Q3 2015$245,000
-48.1%
6,471
-60.8%
0.02%
-55.0%
Q2 2015$472,000
-13.1%
16,525
-14.9%
0.04%
-36.5%
Q1 2015$543,000
+1497.1%
19,410
+1462.8%
0.06%
+1475.0%
Q4 2014$34,0001,2420.00%
Other shareholders
MEDICINES CO shareholders Q4 2016
NameSharesValueWeighting ↓
Aviva Holdings Ltd. 3,778,742$138,680,00022.51%
Sarissa Capital Management LP 1,922,000$70,537,00014.14%
Antipodean Advisors LLC 165,500$6,074,0007.66%
Boxer Capital, LLC 1,250,000$45,875,0005.19%
BRIDGER MANAGEMENT, LLC 2,604,965$95,602,0005.18%
Slate Path Capital LP 1,730,000$63,491,0004.80%
HighVista Strategies LLC 268,240$9,844,0004.44%
Camber Capital Management LP 2,000,000$73,400,0002.82%
Lion Point Capital, LP 727,205$26,688,0002.40%
THREE BAYS CAPITAL LP 1,360,560$49,933,0001.94%
View complete list of MEDICINES CO shareholders