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ZWEIG DIMENNA PARTNERS L P
> MRK
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 12/31/2011 | Merck & Co., Inc. | MRK | 0 | -320,710 | 0 | -10,487,000 | |
| 09/30/2011 | Merck & Co., Inc. | MRK | 320,710 | -39,790 | 10,487,000 | -2,120,000 | $32.70 |
| 06/30/2010 | Merck & Co., Inc. | MRK | 360,500 | -167,770 | 12,607,000 | -7,124,000 | $34.97 |
| 03/31/2010 | Merck & Co., Inc. | MRK | 528,270 | -166,966 | 19,731,000 | -5,673,000 | $37.35 |
| 12/31/2009 | Merck & Co., Inc. | MRK | 695,236 | 695,236 | 25,404,000 | 25,404,000 | $36.54 |
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