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Merrimack Pharmaceuticals Inc (NASDAQ:MACK)

7.08
Delayed Data
As of Apr 29
 -0.21 / -2.88%
Today’s Change
5.02
Today|||52-Week Range
13.26
-10.38%
Year-to-Date
Institutional investors purchased a net $3.0 million shares of MACK during the quarter ended December 2015, and now own 71.24% of the total float, a percentage that is typical for companies in the Biotechnology industry.
Individual stakeholders8.31%
Mutual fund holders44.89%
Other institutional26.35%

Largest Quarterly Institutional
Transactions

Latest Institutional Activity

3/31/2016BIRCHVIEW CAPITAL LP  Bought 14.0 Thousand shares of Merrimack Pharmaceuticals...
3/31/2016NISA INVESTMENT ADVISORS LLC  Bought 1.7 Thousand shares of Merrimack Pharmaceuticals...
3/31/2016QUADRANT CAPITAL GROUP LLC  Bought 841.00 shares of Merrimack Pharmaceuticals...

Top 10 Owners of Merrimack Pharmaceuticals Inc

StockholderStakeShares
owned
Total value ($)Shares
bought / sold
Total
change
Fidelity Management & Research Co...14.88%17,269,819144,548,385+623,250+3.74%
The Vanguard Group, Inc.8.89%10,313,24586,321,861+546,613+5.60%
BlackRock Fund Advisors7.04%8,165,80468,347,779+362,051+4.64%
Westfield Capital Management Co. ...6.25%7,255,81560,731,172+744,254+11.43%
TIAA-CREF Investment Management L...4.38%5,088,48942,590,653+523,886+11.48%
SSgA Funds Management, Inc.2.96%3,431,06828,718,039-613,016-15.16%
Teachers Advisors, Inc.2.30%2,664,95122,305,640+940,656+54.55%
Putnam Investment Management LLC1.91%2,219,92618,580,781+1,446,260+186.94%
Lagoda Investment Management LP1.91%2,211,88018,513,436-145,678-6.18%
Deutsche Asset Management Investm...1.51%1,753,16914,674,025-15,881-0.90%

Top 10 Mutual Funds Holding Merrimack Pharmaceuticals Inc

Mutual fundStakeShares
owned
Total value ($)Shares
bought / sold
Total
change
Fidelity Growth Company Fund6.90%8,003,62166,990,30800.00%
CREF Stock Account3.94%4,571,16738,260,668+194,507+4.44%
Fidelity Series Growth Company Fu...2.12%2,462,50020,611,12500.00%
Vanguard Small Cap Index Fund1.82%2,114,73217,700,307+8,597+0.41%
Vanguard Total Stock Market Index...1.72%1,995,56616,702,887+25,100+1.27%
Vanguard Strategic Equity Fund1.62%1,873,90015,684,543-25,500-1.34%
iShares Russell 2000 ETF1.54%1,787,10214,958,044-8,232-0.46%
Fidelity Blue Chip Growth Fund1.35%1,569,52513,136,92400.00%
iShares Nasdaq Biotechnology ETF1.32%1,535,51512,852,261+21,630+1.43%
Vanguard Small Cap Growth Index F...1.10%1,278,41910,700,367-797-0.06%