MERRIMACK PHARMACEUTICALS IN - COM (MACK)

Q3 2015 13F Holders as of 30 Sep 2015

Type / Class
Equity / COM
Total 13F shares
77,956,651
Share change
+2,700,122
Total reported value
$663,456,879
Put/Call ratio
42%
Price per share
$8.51
Number of holders
133
Value change
+$8,348,757
Number of buys
66
Number of sells
68

Institutional Holders of MERRIMACK PHARMACEUTICALS IN - COM (MACK) as of Q3 2015

As of 30 Sep 2015, MERRIMACK PHARMACEUTICALS IN - COM (MACK) was held by 133 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 77,956,651 shares. The largest 10 holders included FMR LLC, VANGUARD GROUP INC, WESTFIELD CAPITAL MANAGEMENT CO LP, BlackRock Fund Advisors, TIAA CREF INVESTMENT MANAGEMENT LLC, STATE STREET CORP, BlackRock Institutional Trust Company, N.A., Lagoda Investment Management, L.P., DEUTSCHE BANK AG\, and TEACHERS ADVISORS INC. This page lists 133 institutional shareholders reporting positions in this security for the Q3 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.