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CHARTWELL INVESTMENT PARTNERS
> ALXN
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 03/31/2014 | ALEXION PHARMACEUTICALS, INC. | ALXN | 59,985 | -76,540 | 9,126,000 | -6,733,000 | $152.14 |
| 12/31/2013 | ALEXION PHARMACEUTICALS, INC. | ALXN | 59,065 | -77,460 | 7,849,000 | -8,010,000 | $132.89 |
| 09/30/2013 | ALEXION PHARMACEUTICALS, INC. | ALXN | 136,525 | -2,425 | 15,859,000 | 3,042,000 | $116.16 |
| 06/30/2013 | ALEXION PHARMACEUTICALS, INC. | ALXN | 138,950 | 138,950 | 12,817,000 | 12,817,000 | $92.24 |
| 03/31/2013 | ALEXION PHARMACEUTICALS, INC. | ALXN | 138,750 | 138,750 | 12,784,000 | 12,784,000 | $92.14 |
| 06/30/2011 | ALEXION PHARMACEUTICALS, INC. | ALXN | 0 | -75,461 | 0 | -7,446,000 | |
| 03/31/2011 | ALEXION PHARMACEUTICALS, INC. | ALXN | 75,461 | -20,450 | 7,446,000 | -280,000 | $98.67 |
| 12/31/2010 | ALEXION PHARMACEUTICALS, INC. | ALXN | 95,911 | -92,275 | 7,726,000 | -4,386,000 | $80.55 |
| 09/30/2010 | ALEXION PHARMACEUTICALS, INC. | ALXN | 188,186 | -29,555 | 12,112,000 | 966,000 | $64.36 |
| 06/30/2010 | ALEXION PHARMACEUTICALS, INC. | ALXN | 217,741 | -160,146 | 11,146,000 | -9,400,000 | $51.19 |
| 03/31/2010 | ALEXION PHARMACEUTICALS, INC. | ALXN | 377,887 | -347,755 | 20,546,000 | -14,880,000 | $54.37 |
| 12/31/2009 | ALEXION PHARMACEUTICALS, INC. | ALXN | 725,642 | -164,592 | 35,426,000 | -4,225,000 | $48.82 |
| 09/30/2009 | ALEXION PHARMACEUTICALS, INC. | ALXN | 890,234 | 168,998 | 39,651,000 | 10,001,000 | $44.54 |
| 06/30/2009 | ALEXION PHARMACEUTICALS, INC. | ALXN | 721,236 | 210,483 | 29,650,000 | 10,415,000 | $41.11 |
| 03/31/2009 | ALEXION PHARMACEUTICALS, INC. | ALXN | 510,753 | -89,517 | 19,235,000 | -2,489,000 | $37.66 |
| 12/31/2008 | ALEXION PHARMACEUTICALS, INC. | ALXN | 600,270 | -34,435 | 21,724,000 | -3,220,000 | $36.19 |
| 09/30/2008 | ALEXION PHARMACEUTICALS, INC. | ALXN | 634,705 | 634,705 | 24,944,000 | 24,944,000 | $39.30 |
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