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Merrimack Pharmaceuticals Inc (NASDAQ:MACK)

5.62
Delayed Data
As of 3:59pm ET
 -0.01 / -0.18%
Today’s Change
5.02
Today|||52-Week Range
11.18
-28.86%
Year-to-Date
Institutional investors purchased a net $4.4 million shares of MACK during the quarter ended March 2016, and now own 68.04% of the total float, a percentage that is typical for companies in the Biotechnology industry.
Individual stakeholders7.55%
Mutual fund holders42.36%
Other institutional25.68%

Largest Quarterly Institutional
Transactions

Latest Institutional Activity

6/30/2016BNP PARIBAS ARBITRAGE SNC  Bought 4.7 Thousand shares of Merrimack Pharmaceuticals...
5/31/2016PRINCIPAL MANAGEMENT CORP.  Bought 1.1 Thousand shares of Merrimack Pharmaceuticals...
6/30/2016CREATIVE PLANNING, INC.  Sold 250.00 shares of Merrimack Pharmaceuticals...

Top 10 Owners of Merrimack Pharmaceuticals Inc

StockholderStakeShares
owned
Total value ($)Shares
bought / sold
Total
change
Fidelity Management & Research Co...13.58%17,342,78593,477,611+72,966+0.42%
The Vanguard Group, Inc.7.23%9,238,22749,794,044-1,075,018-10.42%
Westfield Capital Management Co. ...6.36%8,127,02243,804,649+871,207+12.01%
BlackRock Fund Advisors6.36%8,125,48343,796,353-40,321-0.49%
Consonance Capital Management LP4.60%5,875,17131,667,172+5,875,171--
TIAA-CREF Investment Management L...4.28%5,465,49629,459,023+377,007+7.41%
SSgA Funds Management, Inc.2.32%2,968,88816,002,306-462,180-13.47%
Putnam Investment Management LLC2.09%2,670,97114,396,534+451,045+20.32%
Teachers Advisors, Inc.1.98%2,530,18813,637,713-134,763-5.06%
Lagoda Investment Management LP1.82%2,327,59912,545,759+115,719+5.23%

Top 10 Mutual Funds Holding Merrimack Pharmaceuticals Inc

Mutual fundStakeShares
owned
Total value ($)Shares
bought / sold
Total
change
Fidelity Growth Company Fund6.19%7,903,42142,599,439-50,500-0.63%
CREF Stock Account3.63%4,638,66725,002,415+20,000+0.43%
Vanguard Small Cap Index Fund1.98%2,533,13213,653,581+381,726+17.74%
Fidelity Series Growth Company Fu...1.94%2,480,20013,368,27800.00%
Vanguard Total Stock Market Index...1.90%2,421,99313,054,542+361,121+17.52%
Fidelity Select Biotechnology Por...1.86%2,377,45812,814,499+1,087,916+84.36%
SPDR S&P Biotech ETF1.72%2,194,62311,829,018-30,280-1.36%
iShares Russell 2000 ETF1.48%1,894,57210,211,743-20,923-1.09%
iShares Nasdaq Biotechnology ETF1.27%1,620,1428,732,565-3,280-0.20%
Fidelity Blue Chip Growth Fund1.22%1,562,4258,421,47100.00%