What does CUSIP 590328100 represent in this 13F holders report?

CUSIP 590328100 is the security identifier for MACK - MERRIMACK PHARMACEUTICALS IN - COM used to aggregate holder disclosures.

How many institutions held MACK - MERRIMACK PHARMACEUTICALS IN - COM in Q4 2016?

130 institutional investors reported MACK - MERRIMACK PHARMACEUTICALS IN - COM for Q4 2016. Use the holders table for investor-level position and value details.

MERRIMACK PHARMACEUTICALS IN - COM (MACK)

CUSIP: 590328100

Q4 2016 13F Holders as of 31 Dec 2016

Type / Class: Equity / COM
Total 13F shares: 101,583,191
Share change: +5,584,091
Total reported value: $414,405,129
Put/Call ratio: 224%
Price per share: $4.08
Number of holders: 130
Value change: +$20,187,314
Number of buys: 59
Number of sells: 50

Quarterly Holders Quick Answers

What is CUSIP 590328100?
CUSIP 590328100 identifies MACK - MERRIMACK PHARMACEUTICALS IN - COM in SEC institutional holdings data.

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Related Filing Research

Latest 13F filings for newly reported positions.
Latest Schedule 13D/13G reports for ownership changes outside 13F cadence.
Latest 10-Q/10-K reports for financial context tied to this issuer.
Recent insider transactions for executive and insider activity.
SEC investors directory and top value investors for manager drilldown.
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Explore More Reporting Periods

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Newer quarter: Q1 2017
Previous quarter: Q3 2016

Recent filing periods for CUSIP 590328100:

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Institutional Holders of MERRIMACK PHARMACEUTICALS IN - COM (MACK) as of Q4 2016

As of 31 Dec 2016, MERRIMACK PHARMACEUTICALS IN - COM (MACK) was held by 130 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 101,583,191 shares. The largest 10 holders included FMR LLC, VANGUARD GROUP INC, WESTFIELD CAPITAL MANAGEMENT CO LP, Consonance Capital Management LP, BlackRock Fund Advisors, TIAA CREF INVESTMENT MANAGEMENT LLC, STATE STREET CORP, GREAT POINT PARTNERS LLC, FRANKLIN RESOURCES INC, and BlackRock Institutional Trust Company, N.A.. This page lists 130 institutional shareholders reporting positions in this security for the Q4 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.