WESTFIELD CAPITAL MANAGEMENT CO LP - MEDICINES CO ownership

MEDICINES CO's ticker is MDCO and the CUSIP is 584688105. A total of 296 filers reported holding MEDICINES CO in Q4 2019. The put-call ratio across all filers is 0.95 and the average weighting 1.1%.

Quarter-by-quarter ownership
WESTFIELD CAPITAL MANAGEMENT CO LP ownership history of MEDICINES CO
ValueSharesWeighting
Q4 2019$116,259,000
-64.1%
1,368,720
-78.8%
0.83%
-68.0%
Q3 2019$323,420,000
+90.8%
6,468,402
+39.2%
2.59%
+103.0%
Q2 2019$169,476,000
+14.6%
4,647,008
-12.2%
1.28%
+13.4%
Q1 2019$147,869,000
+67.8%
5,290,481
+14.9%
1.12%
+49.6%
Q4 2018$88,134,000
-22.2%
4,604,719
+21.6%
0.75%
-5.4%
Q3 2018$113,275,000
-5.9%
3,787,211
+15.4%
0.80%
-11.6%
Q2 2018$120,419,000
+20.7%
3,281,183
+8.3%
0.90%
+16.9%
Q1 2018$99,795,000
+25.7%
3,029,611
+4.3%
0.77%
+26.7%
Q4 2017$79,408,000
-13.4%
2,904,475
+17.3%
0.61%
-13.9%
Q3 2017$91,740,000
+18.8%
2,476,778
+21.9%
0.70%
+7.1%
Q2 2017$77,212,000
+713.9%
2,031,359
+947.1%
0.66%
+712.3%
Q1 2017$9,487,000
+2416.4%
194,000
+1047.9%
0.08%
+3950.0%
Q3 2014$377,000
-41.6%
16,900
-23.9%
0.00%
-50.0%
Q2 2014$645,00022,2000.00%
Other shareholders
MEDICINES CO shareholders Q4 2019
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