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Alexion Pharmaceuticals Inc (NASDAQ:ALXN)

Delayed Data
As of Feb 12
 +5.75 / +4.25%
Today’s Change
Today|||52-Week Range
Institutional investors hold a majority ownership of ALXN through the 101.07% of the outstanding shares that they control. This interest is also higher than at almost any other company in the Biotechnology industry.
Mutual fund holders65.72%
Individual stakeholders4.50%
Other institutional35.35%

Largest Quarterly Institutional

Latest Institutional Activity

12/31/2015ALLIANCEBERNSTEIN LP  Bought 641.3 Thousand shares of Alexion Pharmaceuticals I...
12/31/2015JENNISON ASSOCIATES LLC  Bought 481.0 Thousand shares of Alexion Pharmaceuticals I...
12/31/2015FIDELITY MANAGEMENT & RESEARCH C...  Bought 357.0 Thousand shares of Alexion Pharmaceuticals I...

Top 10 Owners of Alexion Pharmaceuticals Inc

Total value ($)Shares
bought / sold
T. Rowe Price Associates, Inc.12.40%27,941,7214,077,535,346+1,739,186+6.64%
Capital Research & Management Co....12.25%27,602,2074,027,990,068+194,323+0.71%
Fidelity Management & Research Co...6.42%14,458,4262,109,918,106+356,950+2.53%
The Vanguard Group, Inc.5.76%12,973,9581,893,289,691+252,272+1.98%
BlackRock Fund Advisors4.47%10,082,2241,471,298,948-248,150-2.40%
SSgA Funds Management, Inc.3.90%8,794,2901,283,350,740+4,615+0.05%
Jennison Associates LLC3.26%7,346,0241,072,005,282+481,031+7.01%
Baker Bros. Advisors LP2.90%6,542,599954,761,47200.00%
Sands Capital Management LLC2.69%6,056,762883,863,279-323,095-5.06%
Columbia Management Investment Ad...2.31%5,208,108760,019,200-282,420-5.14%

Top 10 Mutual Funds Holding Alexion Pharmaceuticals Inc

Mutual fundStakeShares
Total value ($)Shares
bought / sold
American Funds Growth Fund of Ame...4.72%10,623,0611,550,223,29200.00%
American Funds AMCAP Fund2.62%5,906,898861,993,62500.00%
T Rowe Price Growth Stock Fund2.30%5,191,406757,581,878+397,500+8.29%
Fidelity Select Biotechnology Por...1.86%4,189,004611,301,35400.00%
T Rowe Price Blue Chip Growth Fun...1.75%3,943,700575,504,141+234,000+6.31%
Vanguard Total Stock Market Index...1.74%3,922,621572,428,083+60,122+1.56%
T Rowe Price Health Sciences Fund1.52%3,414,036498,210,273+20,193+0.59%
American Funds Capital World Grow...1.43%3,231,350471,550,90600.00%
American Funds Investment Company...1.42%3,207,000467,997,51000.00%
Vanguard 500 Index Fund1.22%2,750,943401,445,112+32,753+1.20%