Merrimack Pharmaceuticals Inc (NASDAQ:MACK)

Data as of Sep 18
 -0.20 / -2.69%
Today’s Change
Today|||52-Week Range
Institutional investors purchased a net $3.3 million shares of MACK during the quarter ended June 2014. This may signal that the smart money is gaining interest in this company as the 53.88% of shares outstanding that institutional investors hold is actually below the Biotechnology industry average.
Individual stakeholders8.27%
Mutual fund holders35.04%
Other institutional18.84%

Largest Quarterly Institutional

Latest Institutional Activity

6/30/2014DEUTSCHE ASSET & WEALTH MANAGEME...  Bought 2.2 Million shares of Merrimack Pharmaceuticals...
6/30/2014MILLENNIUM MANAGEMENT LLC  Bought 1.7 Million shares of Merrimack Pharmaceuticals...
6/30/2014RENAISSANCE TECHNOLOGIES LLC  Bought 569.4 Thousand shares of Merrimack Pharmaceuticals...

Top 10 Owners of Merrimack Pharmaceuticals Inc

Total value ($)Shares
bought / sold
Fidelity Management & Research Co...14.77%15,447,572107,824,053+504,853+3.38%
BlackRock Fund Advisors5.18%5,413,10637,783,480+534,969+10.97%
The Vanguard Group, Inc.5.16%5,396,58337,668,149+125,957+2.39%
Jennison Associates LLC4.63%4,837,58233,766,322-1,001,678-17.15%
SSgA Funds Management, Inc.3.25%3,399,27623,726,946-1,242,346-26.77%
Deutsche Asset & Wealth Managemen...2.27%2,375,20116,578,903+2,241,065+1,670.74%
Millennium Management LLC1.97%2,055,59214,348,032+1,747,706+567.65%
Northern Trust Investments, Inc.1.08%1,133,9397,914,894-125,612-9.97%
Putnam Investment Management LLC0.83%867,6516,056,204-152,881-14.98%
UBS AG (Investment Management)0.77%804,9975,618,87900.00%

Top 10 Mutual Funds Holding Merrimack Pharmaceuticals Inc

Mutual fundStakeShares
Total value ($)Shares
bought / sold
Fidelity Growth Company Fund9.03%9,446,42165,936,019-239,900-2.48%
Prudential Jennison Health Scienc...3.63%3,798,56226,513,96300.00%
Fidelity Series Growth Company Fu...1.93%2,018,43814,088,69700.00%
SPDR S&P Biotech ETF1.85%1,935,63713,510,746+48,247+2.56%
Vanguard Small Cap Index Fund1.54%1,614,53011,269,419+8,678+0.54%
Fidelity Blue Chip Growth Fund1.53%1,594,65811,130,71300.00%
Vanguard Total Stock Market Index...1.37%1,435,50910,019,853+26,340+1.87%
iShares Russell 2000 ETF1.34%1,398,8569,764,015+5,627+0.40%
iShares Nasdaq Biotechnology ETF1.16%1,211,5418,456,556+27,708+2.34%
Vanguard Small Cap Growth Index F...1.07%1,117,0307,796,869-10,562-0.94%

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