MDCO - The Medicines Company

NasdaqGS - NasdaqGS Real Time Price. Currency in USD

Major Holders

Currency in USD
Breakdown
4.22%% of Shares Held by All Insider
117.08%% of Shares Held by Institutions
122.25%% of Float Held by Institutions
339Number of Institutions Holding Shares

Top Institutional Holders

HolderSharesDate Reported% OutValue
Blackrock Inc.11,877,206Sep 29, 201914.90%593,860,300
Wellington Management Company, LLP11,067,825Sep 29, 201913.88%553,391,250
FMR, LLC9,374,022Sep 29, 201911.76%468,701,100
Vanguard Group, Inc. (The)7,474,698Sep 29, 20199.38%373,734,900
Westfield Capital Management Company6,468,402Sep 29, 20198.11%323,420,100
Sarissa Capital Management, LP4,202,000Sep 29, 20195.27%210,100,000
Maverick Capital Ltd.3,884,039Sep 29, 20194.87%194,201,950
Slate Path Capital, LP3,695,000Sep 29, 20194.63%184,750,000
State Street Corporation3,508,265Sep 29, 20194.40%175,413,250
Iridian Asset Management LLC3,001,362Sep 29, 20193.76%150,068,100

Top Mutual Fund Holders

HolderSharesDate Reported% OutValue
Vanguard Specialized-Health Care Fund5,717,320Jul 30, 20197.17%204,908,748
iShares Core S&P Smallcap ETF4,402,916Sep 29, 20195.52%220,145,800
Fidelity Growth Company Fund2,102,446Sep 29, 20192.64%105,122,300
Vanguard Total Stock Market Index Fund1,975,217Jun 29, 20192.48%72,036,163
Vanguard Small-Cap Index Fund1,836,557Jun 29, 20192.30%66,979,233
iShares Russell 2000 ETF1,696,043Sep 29, 20192.13%84,802,150
SPDR (R) Ser Tr-SPDR (R) S&P (R) Biotech ETF1,357,699Sep 29, 20191.70%67,884,950
Vanguard Small-Cap Growth Index Fund1,055,675Jun 29, 20191.32%38,500,467
Fidelity Select Portfolios - Biotechnology1,038,962Sep 29, 20191.30%51,948,100
Delaware Group Equity Fds V-Small Cap Core Fund1,022,576May 30, 20191.28%36,454,834