BlackRock Investment Management, LLC - MERRIMACK PHARMACEUTICALS IN ownership

MERRIMACK PHARMACEUTICALS IN's ticker is MACKXXXX and the CUSIP is 590328100. A total of 118 filers reported holding MERRIMACK PHARMACEUTICALS IN in Q1 2017. The put-call ratio across all filers is 1.86 and the average weighting 0.0%.

Quarter-by-quarter ownership
BlackRock Investment Management, LLC ownership history of MERRIMACK PHARMACEUTICALS IN
ValueSharesWeighting
Q4 2016$1,916,000
-35.8%
469,494
-0.2%
0.00%
-50.0%
Q3 2016$2,986,000
+17.4%
470,238
-0.3%
0.00%
+33.3%
Q2 2016$2,543,000
-24.3%
471,710
+17.5%
0.00%
-25.0%
Q1 2016$3,361,000
+12.3%
401,507
+6.0%
0.00%0.0%
Q4 2015$2,992,000
-5.4%
378,686
+1.9%
0.00%0.0%
Q3 2015$3,163,000
-31.9%
371,632
-1.1%
0.00%
-33.3%
Q2 2015$4,646,000
+42.8%
375,750
+37.2%
0.01%
+50.0%
Q1 2015$3,253,000
+6.9%
273,816
+1.6%
0.00%0.0%
Q4 2014$3,044,000
+27.6%
269,375
-0.9%
0.00%
+33.3%
Q3 2014$2,386,000
+20.6%
271,772
+0.1%
0.00%0.0%
Q2 2014$1,979,000
+46.4%
271,406
+1.2%
0.00%
+50.0%
Q1 2014$1,352,000
-5.1%
268,251
+0.4%
0.00%0.0%
Q4 2013$1,425,000
+38.2%
267,224
-1.8%
0.00%0.0%
Q3 2013$1,031,000
-35.2%
271,998
+15.1%
0.00%
-33.3%
Q2 2013$1,592,000236,2350.00%
Other shareholders
MERRIMACK PHARMACEUTICALS IN shareholders Q1 2017
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