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Alexion Pharmaceuticals Inc (NASDAQ:ALXN)

During the Trading Day
177.80 +1.83 / +1.04%
As of 4:14pm ET
Day’s Change
During After-Hours   Switch to standard view »
177.80 0.00 / 0.00%
Volume: 15.9K
Institutional investors hold a majority ownership of ALXN through the 100.69% of the outstanding shares that they control. This interest is also higher than at almost any other company in the Biotechnology industry. Last, during the quarter ended September 2015, these large investors purchased a net $4.2 million shares.
Mutual fund holders63.55%
Individual stakeholders4.20%
Other institutional37.14%

Largest Quarterly Institutional

Latest Institutional Activity

9/30/2015T. ROWE PRICE ASSOCIATES, INC.  Bought 1.7 Million shares of Alexion Pharmaceuticals I...
9/30/2015WADDELL & REED INVESTMENT MANAGE...  Bought 1.5 Million shares of Alexion Pharmaceuticals I...
9/30/2015CAPITAL RESEARCH & MANAGEMENT CO...  Bought 1.1 Million shares of Alexion Pharmaceuticals I...

Top 10 Owners of Alexion Pharmaceuticals Inc

Total value ($)Shares
bought / sold
T. Rowe Price Associates, Inc.12.36%27,941,7214,917,742,896+1,739,186+6.64%
Capital Research & Management Co....12.12%27,407,8844,823,787,584+1,074,143+4.08%
Fidelity Management & Research Co...6.24%14,101,4762,481,859,776-760,377-5.12%
The Vanguard Group, Inc.5.63%12,721,6862,239,016,736-333,010-2.55%
BlackRock Fund Advisors4.57%10,330,3741,818,145,824-48,964-0.47%
SSgA Funds Management, Inc.3.89%8,794,2901,547,795,040+4,615+0.05%
Jennison Associates LLC3.04%6,864,9931,208,238,768+913,030+15.34%
Baker Bros. Advisors LP2.89%6,542,5991,151,497,42400.00%
Sands Capital Management LLC2.82%6,379,8571,122,854,832-139,689-2.14%
Columbia Management Investment Ad...2.43%5,489,583966,166,608+530,372+10.69%

Top 10 Mutual Funds Holding Alexion Pharmaceuticals Inc

Mutual fundStakeShares
Total value ($)Shares
bought / sold
American Funds Growth Fund of Ame...4.62%10,454,9381,840,069,08800.00%
American Funds AMCAP Fund2.58%5,836,3981,027,206,048+29,500+0.51%
T Rowe Price Growth Stock Fund2.12%4,793,906843,727,456+874,000+22.30%
Fidelity Select Biotechnology Por...1.85%4,189,004737,264,704+19,950+0.48%
T Rowe Price Blue Chip Growth Fun...1.74%3,943,700694,091,200+234,000+6.31%
Vanguard Total Stock Market Index...1.69%3,826,575673,477,200-360,353-8.61%
T Rowe Price Health Sciences Fund1.50%3,393,843597,316,368+274,977+8.82%
American Funds Capital World Grow...1.43%3,231,350568,717,600+47,750+1.50%
American Funds Investment Company...1.42%3,207,000564,432,00000.00%
Vanguard 500 Index Fund1.19%2,698,593474,952,368+17,267+0.64%