Rock Springs Capital Management LP - MEDICINES CO ownership

MEDICINES CO's ticker is and the CUSIP is 584688AG0. A total of 46 filers reported holding MEDICINES CO in Q2 2019. The put-call ratio across all filers is - and the average weighting 0.3%.

Quarter-by-quarter ownership
Rock Springs Capital Management LP ownership history of MEDICINES CO
ValueSharesWeighting
Q4 2019$8,735,000
+44.4%
5,000,0000.0%0.28%
+14.5%
Q3 2019$6,050,000
+20.4%
5,000,0000.0%0.24%
+32.4%
Q2 2019$5,026,000
+18.8%
5,000,0000.0%0.18%
+11.7%
Q1 2019$4,231,000
+11.5%
5,000,0000.0%0.16%
-8.9%
Q4 2018$3,793,000
-16.8%
5,000,0000.0%0.18%
+8.5%
Q3 2018$4,560,000
-9.7%
5,000,0000.0%0.16%
-14.9%
Q2 2018$5,052,000
+4.8%
5,000,0000.0%0.19%
-5.8%
Q1 2018$4,820,000
+4.9%
5,000,0000.0%0.21%
-1.4%
Q4 2017$4,597,000
-13.0%
5,000,0000.0%0.21%
-14.3%
Q3 2017$5,281,000
+0.5%
5,000,0000.0%0.24%
-7.9%
Q2 2017$5,256,0005,000,0000.26%
Other shareholders
MEDICINES CO shareholders Q2 2019
NameSharesValueWeighting ↓
Man Investments (CH) AG 3,000,000$2,762,0002.59%
PT ASSET MANAGEMENT, LLC 3,750,000$3,448,0001.87%
ARISTEIA CAPITAL, L.L.C. 32,500,000$29,921,0001.27%
ZAZOVE ASSOCIATES LLC 22,710,000$20,905,0001.23%
PFM Health Sciences, LP 34,471,000$31,692,0000.75%
CAPSTONE INVESTMENT ADVISORS, LLC 24,215,000$22,262,0000.63%
OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) 36,000,000$33,075,000,0000.59%
Partner Investment Management, L.P. 479,000$440,0000.51%
SSI INVESTMENT MANAGEMENT LLC 4,808,000$4,398,0000.37%
WOLVERINE ASSET MANAGEMENT LLC 32,315,000$29,732,0000.30%
View complete list of MEDICINES CO shareholders