Alexion Pharmaceuticals Inc (NASDAQ:ALXN)

During the Trading Day
171.94 +3.37 / +2.00%
As of 3:59pm ET
Day’s Change
During After-Hours   Switch to standard view »
171.08 -0.86 / -0.50%
Volume: 35.8K
Institutional investors hold a majority ownership of ALXN through the 98.74% 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 March 2015, these large investors purchased a net $717.8 thousand shares.
Mutual fund holders65.30%
Other institutional33.44%
Individual stakeholders1.34%

Largest Quarterly Institutional

Latest Institutional Activity

3/31/2015T. ROWE PRICE ASSOCIATES, INC.  Bought 1.9 Million shares of Alexion Pharmaceuticals I...
3/31/2015CITADEL ADVISORS LLC  Bought 892.5 Thousand shares of Alexion Pharmaceuticals I...
3/31/2015BLACKROCK FUND ADVISORS  Bought 694.3 Thousand shares of Alexion Pharmaceuticals I...

Top 10 Owners of Alexion Pharmaceuticals Inc

Total value ($)Shares
bought / sold
Capital Research & Management Co....12.41%24,763,1924,190,674,982+473,092+1.95%
T. Rowe Price Associates, Inc.11.06%22,075,1263,735,773,573+1,899,735+9.42%
Fidelity Management & Research Co...9.84%19,633,0733,322,504,944-2,462,174-11.14%
The Vanguard Group, Inc.5.65%11,271,5171,907,478,822+611,169+5.73%
BlackRock Fund Advisors4.70%9,387,4091,588,631,225+694,302+7.99%
SSgA Funds Management, Inc.4.25%8,471,5801,433,645,483-90,622-1.06%
Jennison Associates LLC2.63%5,240,238886,805,477-553,113-9.55%
Sands Capital Management LLC2.61%5,204,296880,723,012-63,607-1.21%
JPMorgan Investment Management, I...2.31%4,600,748778,584,584-655,057-12.46%
Wells Capital Management, Inc.1.81%3,609,297610,801,331-100,371-2.71%

Top 10 Mutual Funds Holding Alexion Pharmaceuticals Inc

Mutual fundStakeShares
Total value ($)Shares
bought / sold
American Funds Growth Fund of Ame...4.64%9,261,0611,567,249,35300.00%
American Funds AMCAP Fund2.72%5,426,327918,297,318+475,000+9.59%
Vanguard Total Stock Market Index...1.79%3,571,350604,379,561+7,947+0.22%
American Funds Investment Company...1.61%3,207,000542,720,61000.00%
T Rowe Price Growth Stock Fund1.60%3,188,400539,572,932-19,600-0.61%
Fidelity Select Biotechnology Por...1.52%3,026,170512,118,749+337,700+12.56%
American Funds Capital World Grow...1.49%2,974,400503,357,71200.00%
T Rowe Price Blue Chip Growth Fun...1.47%2,937,900497,180,817+118,000+4.18%
Fidelity Growth Company Fund1.45%2,888,760488,864,855-279,700-8.83%
Fidelity Contrafund1.43%2,847,000481,797,810+176,900+6.63%

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