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Merrimack Pharmaceuticals Inc (NASDAQ:MACK)

5.42
Delayed Data
As of Feb 08
 -0.62 / -10.26%
Today’s Change
5.28
Today|||52-Week Range
13.84
-31.39%
Year-to-Date
Institutional investors purchased a net $2.1 million shares of MACK during the quarter ended September 2015, and now own 68.30% of the total float, a percentage that is typical for companies in the Biotechnology industry.
Individual stakeholders8.27%
Mutual fund holders44.86%
Other institutional23.44%

Largest Quarterly Institutional
Transactions

Latest Institutional Activity

12/31/2015STONERIDGE INVESTMENT PARTNERS L...  Bought 87.1 Thousand shares of Merrimack Pharmaceuticals...
12/31/2015NEW YORK STATE COMMON RETIREMENT...  Bought 50.7 Thousand shares of Merrimack Pharmaceuticals...
12/31/2015OXFORD ASSET MANAGEMENT LLP  Bought 42.3 Thousand shares of Merrimack Pharmaceuticals...

Top 10 Owners of Merrimack Pharmaceuticals Inc

StockholderStakeShares
owned
Total value ($)Shares
bought / sold
Total
change
Fidelity Management & Research Co...14.40%16,646,569131,507,895+209,219+1.27%
The Vanguard Group, Inc.8.45%9,766,63277,156,393+387,345+4.13%
BlackRock Fund Advisors6.75%7,803,75361,649,649+245,697+3.25%
Westfield Capital Management Co. ...5.63%6,511,56151,441,332+1,629,894+33.39%
TIAA-CREF Investment Management L...3.95%4,564,60336,060,364+1,461,283+47.09%
SSgA Funds Management, Inc.3.50%4,044,08431,948,264+58,975+1.48%
Lagoda Investment Management LP1.91%2,211,88017,473,852-145,678-6.18%
Deutsche Asset & Wealth Managemen...1.53%1,769,05013,975,495-43,385-2.39%
Teachers Advisors, Inc.1.49%1,724,29513,621,931+448,628+35.17%
Voya Investment Management Co. LL...1.22%1,404,43611,095,044+434,796+44.84%

Top 10 Mutual Funds Holding Merrimack Pharmaceuticals Inc

Mutual fundStakeShares
owned
Total value ($)Shares
bought / sold
Total
change
Fidelity Growth Company Fund6.98%8,063,52149,751,925-11,600-0.14%
CREF Stock Account3.79%4,376,66027,003,992-73,237-1.65%
Fidelity Series Growth Company Fu...2.13%2,462,50015,193,62500.00%
Vanguard Small Cap Index Fund1.80%2,077,31212,817,015+102,187+5.17%
Vanguard Strategic Equity Fund1.64%1,899,40011,719,29800.00%
Vanguard Total Stock Market Index...1.62%1,870,26911,539,560+94,736+5.34%
iShares Russell 2000 ETF1.56%1,807,41511,151,751-1,945-0.11%
SPDR S&P Biotech ETF1.37%1,584,6339,777,186-57,897-3.52%
Fidelity Blue Chip Growth Fund1.36%1,571,6589,697,130-12,500-0.79%
Vanguard Small Cap Growth Index F...1.10%1,275,6227,870,588+72,547+6.03%