Magnetar Financial LLC - MERRIMACK PHARMACEUTICALS IN ownership

MERRIMACK PHARMACEUTICALS IN's ticker is MACKXXXX and the CUSIP is 590328100. A total of 125 filers reported holding MERRIMACK PHARMACEUTICALS IN in Q2 2014. The put-call ratio across all filers is 0.57 and the average weighting 0.0%.

Quarter-by-quarter ownership
Magnetar Financial LLC ownership history of MERRIMACK PHARMACEUTICALS IN
ValueSharesWeighting
Q1 2014$1,890,000
-71.2%
375,000
-69.4%
0.04%
-72.6%
Q4 2013$6,552,000
+4.2%
1,226,893
-25.9%
0.14%
+29.8%
Q3 2013$6,288,000
+23.8%
1,654,837
+119.2%
0.10%
-6.3%
Q2 2013$5,080,000754,8370.11%
Other shareholders
MERRIMACK PHARMACEUTICALS IN shareholders Q2 2014
NameSharesValueWeighting ↓
Lagoda Investment Management, L.P. 2,244,080$12,096,0004.51%
ALTFEST L J & CO INC 39,491$1,653,0001.15%
GARRISON BRADFORD & ASSOCIATES INC 82,700$446,0000.44%
WESTFIELD CAPITAL MANAGEMENT CO LP 9,074,557$48,912,0000.40%
Virtus ETF Advisers LLC 87,477$472,0000.35%
Cannell & Co. 1,614,678$8,703,0000.32%
Birchview Capital, LP 44,000$237,0000.17%
STONERIDGE INVESTMENT PARTNERS LLC 180,534$973,0000.14%
HighPoint Advisor Group LLC 8,484$344,0000.12%
MARINER INVESTMENT GROUP LLC 63,090$340,0000.12%
View complete list of MERRIMACK PHARMACEUTICALS IN shareholders