Merrimack Pharmaceuticals Inc (NASDAQ:MACK)

12.00
BATS BZX Real-Time Price
As of 1:57pm ET
 +0.025 / +0.21%
Today’s Change
5.53
Today|||52-Week Range
13.84
+6.19%
Year-to-Date
Institutional investors purchased a net $11.4 million shares of MACK during the quarter ended March 2015, and now own 64.66% of the total float, a percentage that is typical for companies in the Biotechnology industry.
Individual stakeholders8.55%
Mutual fund holders40.55%
Other institutional24.11%

Largest Quarterly Institutional
Transactions

Latest Institutional Activity

5/29/2015CANDRIAM BELGIUM SA  Bought 140.0 Thousand shares of Merrimack Pharmaceuticals...
5/31/2015LIFESCI INDEX PARTNERS LLC  Bought 2.0 Thousand shares of Merrimack Pharmaceuticals...
5/29/2015STATE STREET GLOBAL ADVISORS LTD...  Sold 215.00 shares of Merrimack Pharmaceuticals...

Top 10 Owners of Merrimack Pharmaceuticals Inc

StockholderStakeShares
owned
Total value ($)Shares
bought / sold
Total
change
Fidelity Management & Research Co...14.61%16,073,152189,663,194+256,832+1.62%
The Vanguard Group, Inc.7.91%8,707,054102,743,237+2,090,625+31.60%
BlackRock Fund Advisors6.73%7,401,03287,332,178+816,018+12.39%
SSgA Funds Management, Inc.3.15%3,465,43040,892,074+257,024+8.01%
Westfield Capital Management Co. ...2.64%2,903,55934,261,996+2,903,559--
TIAA-CREF Investment Management L...2.34%2,577,41430,413,485+2,140,644+490.11%
Lagoda Investment Management LP1.76%1,931,87222,796,090+371,342+23.80%
Deutsche Asset & Wealth Managemen...1.63%1,788,53521,104,713-149,902-7.73%
Teachers Advisors, Inc.1.02%1,124,53613,269,525+985,445+708.49%
Northern Trust Investments, Inc.1.02%1,118,74813,201,226+33,264+3.06%

Top 10 Mutual Funds Holding Merrimack Pharmaceuticals Inc

Mutual fundStakeShares
owned
Total value ($)Shares
bought / sold
Total
change
Fidelity Growth Company Fund7.68%8,454,22199,759,808+277,836+3.40%
Fidelity Series Growth Company Fu...2.21%2,427,60028,645,68000.00%
CREF Stock Account1.85%2,032,43923,982,780+47,888+2.41%
SPDR S&P Biotech ETF1.82%1,999,64623,595,823+59,803+3.08%
Vanguard Small Cap Index Fund1.61%1,771,53420,904,101+10,768+0.61%
Vanguard Total Stock Market Index...1.52%1,674,59019,760,162-941-0.06%
Vanguard Strategic Equity Fund1.47%1,616,40019,073,520+1,409,700+682.00%
Fidelity Blue Chip Growth Fund1.44%1,584,15818,693,064-10,500-0.66%
iShares Russell 2000 ETF1.35%1,487,27517,549,845-101,529-6.39%
iShares Nasdaq Biotechnology ETF1.24%1,368,29416,145,869+8,427+0.62%

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