MERRIMACK PHARMACEUTICALS IN - COM (MACK)

Q2 2015 13F Holders as of 30 Jun 2015

Type / Class
Equity / COM
Total 13F shares
75,365,475
Share change
+6,386,909
Total reported value
$931,866,377
Put/Call ratio
28%
Price per share
$12.36
Number of holders
148
Value change
+$79,467,453
Number of buys
85
Number of sells
52

Institutional Holders of MERRIMACK PHARMACEUTICALS IN - COM (MACK) as of Q2 2015

As of 30 Jun 2015, MERRIMACK PHARMACEUTICALS IN - COM (MACK) was held by 148 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 75,365,475 shares. The largest 10 holders included FMR LLC, VANGUARD GROUP INC, BlackRock Fund Advisors, WESTFIELD CAPITAL MANAGEMENT CO LP, STATE STREET CORP, TIAA CREF INVESTMENT MANAGEMENT LLC, BlackRock Institutional Trust Company, N.A., Lagoda Investment Management, L.P., DEUTSCHE BANK AG\, and TEACHERS ADVISORS INC. This page lists 148 institutional shareholders reporting positions in this security for the Q2 2015 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.