GROUP ONE TRADING, L.P. - MEDICINES CO ownership

MEDICINES CO's ticker is MDCO and the CUSIP is 584688105. A total of 169 filers reported holding MEDICINES CO in Q4 2014. The put-call ratio across all filers is 1.96 and the average weighting 0.2%.

Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of MEDICINES CO
ValueSharesWeighting
Q3 2018$1,295,000
+22.2%
43,294
+49.9%
0.01%
+11.1%
Q2 2018$1,060,000
-38.2%
28,884
-44.5%
0.01%
-47.1%
Q1 2018$1,714,000
-7.6%
52,034
-23.3%
0.02%
+30.8%
Q4 2017$1,854,000
-49.5%
67,829
-31.6%
0.01%
-60.6%
Q3 2017$3,672,000
+3.0%
99,141
+5.7%
0.03%
-10.8%
Q2 2017$3,564,000
-2.2%
93,765
+25.8%
0.04%
-11.9%
Q1 2017$3,644,000
+4694.7%
74,523
+3591.1%
0.04%
+4100.0%
Q3 2016$76,000
-91.3%
2,019
-92.3%
0.00%
-90.0%
Q2 2016$877,000
-30.9%
26,075
-34.8%
0.01%
-44.4%
Q1 2016$1,270,000
+39.7%
39,983
+64.3%
0.02%
+63.6%
Q4 2015$909,000
+1180.3%
24,341
+1196.1%
0.01%
+1000.0%
Q3 2015$71,000
-92.8%
1,878
-94.5%
0.00%
-92.9%
Q2 2015$982,000
+211.7%
34,307
+205.6%
0.01%
+180.0%
Q1 2015$315,000
+64.1%
11,226
+30.4%
0.01%
+66.7%
Q3 2014$192,000
+149.4%
8,606
+223.2%
0.00%
+200.0%
Q2 2014$77,000
+13.2%
2,663
+11.0%
0.00%0.0%
Q1 2014$68,0002,4000.00%
Other shareholders
MEDICINES CO shareholders Q4 2014
NameSharesValueWeighting ↓
Sarissa Capital Management LP 1,361,900$38,964,0008.97%
Camber Capital Management LP 2,500,000$71,525,0004.87%
SECTOR GAMMA AS 450,750$12,896,0003.29%
BRIDGER MANAGEMENT, LLC 2,491,011$71,268,0002.25%
ASHFORD CAPITAL MANAGEMENT INC 705,800$20,192,0002.21%
Signpost Capital Advisors, LP 254,591$7,284,0002.07%
RA Capital Management 705,925$20,197,0002.03%
IMA Advisory Services, Inc. 115,310$3,299,0001.57%
Partner Investment Management, L.P. 37,510$1,073,0001.51%
Elk Creek Partners, LLC 378,154$10,819,0000.97%
View complete list of MEDICINES CO shareholders