MERRIMACK PHARMACEUTICALS IN - COM (MACK)

Q1 2016 13F Holders as of 31 Mar 2016

Type / Class
Equity / COM
Total 13F shares
84,705,691
Share change
+4,056,654
Total reported value
$708,885,700
Put/Call ratio
89%
Price per share
$8.37
Number of holders
136
Value change
+$34,963,782
Number of buys
70
Number of sells
53

Institutional Holders of MERRIMACK PHARMACEUTICALS IN - COM (MACK) as of Q1 2016

As of 31 Mar 2016, MERRIMACK PHARMACEUTICALS IN - COM (MACK) was held by 136 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 84,705,691 shares. The largest 10 holders included FMR LLC, VANGUARD GROUP INC, WESTFIELD CAPITAL MANAGEMENT CO LP, Consonance Capital Management LP, TIAA CREF INVESTMENT MANAGEMENT LLC, BlackRock Fund Advisors, STATE STREET CORP, BlackRock Institutional Trust Company, N.A., PUTNAM INVESTMENTS LLC, and TEACHERS ADVISORS INC. This page lists 136 institutional shareholders reporting positions in this security for the Q1 2016 filing period.
Investor Option Weight % Change % Value $ * Price Shares Share Change Activity Report Period
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.