Merrimack Pharmaceuticals Inc (NASDAQ:MACK)

Data as of Dec 24
 +0.36 / +3.41%
Today’s Change
Today|||52-Week Range
Institutional investors purchased a net $1.8 million shares of MACK during the quarter ended September 2014. This may signal that the smart money is gaining interest in this company as the 52.32% of shares outstanding that institutional investors hold is actually below the Biotechnology industry average.
Individual stakeholders8.35%
Mutual fund holders33.82%
Other institutional18.51%

Largest Quarterly Institutional

Latest Institutional Activity

9/30/2014CONSONANCE CAPITAL MANAGEMENT LP  Bought 1.5 Million shares of Merrimack Pharmaceuticals...
9/30/2014LORD, ABBETT & CO. LLC  Bought 616.5 Thousand shares of Merrimack Pharmaceuticals...
9/30/2014PORTOLAN CAPITAL MANAGEMENT LLC  Bought 423.0 Thousand shares of Merrimack Pharmaceuticals...

Top 10 Owners of Merrimack Pharmaceuticals Inc

Total value ($)Shares
bought / sold
Fidelity Management & Research Co...14.75%15,621,838143,096,036+174,266+1.13%
The Vanguard Group, Inc.5.31%5,620,18651,480,904+223,603+4.14%
BlackRock Fund Advisors5.16%5,467,91950,086,138+54,813+1.01%
SSgA Funds Management, Inc.3.47%3,672,15033,636,894+272,874+8.03%
Millennium Management LLC1.88%1,991,22218,239,594-64,370-3.13%
Deutsche Asset & Wealth Managemen...1.78%1,889,33717,306,327-485,864-20.46%
Consonance Capital Management LP1.45%1,536,90214,078,022+1,536,902--
Northern Trust Investments, Inc.1.07%1,130,10910,351,798-3,830-0.34%
UBS AG (Investment Management)0.79%839,3977,688,877+34,400+4.27%
Putnam Investment Management LLC0.74%778,2447,128,715-89,407-10.30%

Top 10 Mutual Funds Holding Merrimack Pharmaceuticals Inc

Mutual fundStakeShares
Total value ($)Shares
bought / sold
Fidelity Growth Company Fund8.89%9,407,80986,175,530-114,600-1.20%
SPDR S&P Biotech ETF2.02%2,139,70119,599,661-70,444-3.19%
Fidelity Series Growth Company Fu...1.94%2,048,36618,763,033+29,928+1.48%
Vanguard Small Cap Index Fund1.56%1,652,62415,138,036+9,316+0.57%
Fidelity Blue Chip Growth Fund1.51%1,594,65814,607,06700.00%
iShares Russell 2000 ETF1.50%1,584,76314,516,429+103,206+6.97%
Vanguard Total Stock Market Index...1.47%1,553,68914,231,791+18,440+1.20%
iShares Nasdaq Biotechnology ETF1.28%1,357,53112,434,984+14,076+1.05%
Vanguard Small Cap Growth Index F...1.04%1,097,88810,056,654-2,179-0.20%
iShares US Pharmaceuticals ETF0.97%1,027,3619,410,627+18,184+1.80%

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