OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) - MERRIMACK PHARMACEUTICALS IN ownership

MERRIMACK PHARMACEUTICALS IN's ticker is and the CUSIP is 590328AA8. A total of 20 filers reported holding MERRIMACK PHARMACEUTICALS IN in Q2 2014. The put-call ratio across all filers is - and the average weighting 0.5%.

Quarter-by-quarter ownership
OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) ownership history of MERRIMACK PHARMACEUTICALS IN
ValueSharesWeighting
Q2 2014$8,811,000,000
+15.9%
6,500,000
-13.3%
0.17%
+20.1%
Q1 2014$7,605,000,000
-26.9%
7,500,000
-25.0%
0.14%
-24.6%
Q4 2013$10,407,000,000
+4.1%
10,000,000
-9.1%
0.19%
-8.2%
Q3 2013$10,001,000,00011,000,0000.21%
Other shareholders
MERRIMACK PHARMACEUTICALS IN shareholders Q2 2014
NameSharesValueWeighting ↓
TFG Asset Management GP Ltd 16,490,000$25,947,00012.49%
SILVERBACK ASSET MANAGEMENT LLC 14,500,000$22,711,0002.37%
TANG CAPITAL MANAGEMENT LLC 3,500,000$5,259,0001.94%
ARISTEIA CAPITAL, L.L.C. 11,932,000$18,727,0000.95%
WOLVERINE ASSET MANAGEMENT LLC 12,600,000$19,576,0000.46%
Polar Capital LLP 3,120,000$4,965,0000.10%
Tekla Capital Management LLC 1,485,000$2,336,0000.08%
MIZUHO SECURITIES USA LLC 194,000$305,0000.08%
PALISADE CAPITAL MANAGEMENT, LP 1,410,000$2,206,0000.06%
LAZARD ASSET MANAGEMENT LLC 11,010,000$17,375,0000.04%
View complete list of MERRIMACK PHARMACEUTICALS IN shareholders