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Rock Springs Capital Management LP
> ACHN
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 03/31/2020 | ACHILLION PHARMACEUTICALS INC | ACHN | 0 | -3,685,000 | 0 | -22,221,000 | |
| 12/31/2019 | ACHILLION PHARMACEUTICALS INC | ACHN | 3,685,000 | -140,000 | 22,221,000 | 8,451,000 | $6.03 |
| 09/30/2019 | ACHILLION PHARMACEUTICALS INC | ACHN | 3,825,000 | 875,000 | 13,770,000 | 5,864,000 | $3.60 |
| 06/30/2019 | ACHILLION PHARMACEUTICALS INC | ACHN | 2,950,000 | 250,000 | 7,906,000 | -86,000 | $2.68 |
| 03/31/2019 | ACHILLION PHARMACEUTICALS INC | ACHN | 2,700,000 | 375,000 | 7,992,000 | 4,295,000 | $2.96 |
| 12/31/2018 | ACHILLION PHARMACEUTICALS INC | ACHN | 2,325,000 | -75,000 | 3,697,000 | -5,135,000 | $1.59 |
| 09/30/2018 | ACHILLION PHARMACEUTICALS INC | ACHN | 2,400,000 | 50,000 | 8,832,000 | 2,181,000 | $3.68 |
| 06/30/2018 | ACHILLION PHARMACEUTICALS INC | ACHN | 2,350,000 | 100,000 | 6,651,000 | -1,697,000 | $2.83 |
| 03/31/2018 | ACHILLION PHARMACEUTICALS INC | ACHN | 2,250,000 | 0 | 8,348,000 | 1,868,000 | $3.71 |
| 12/31/2017 | ACHILLION PHARMACEUTICALS INC | ACHN | 2,250,000 | 118,600 | 6,480,000 | -3,090,000 | $2.88 |
| 09/30/2017 | ACHILLION PHARMACEUTICALS INC | ACHN | 2,131,400 | 406,400 | 9,570,000 | 1,652,000 | $4.49 |
| 06/30/2017 | ACHILLION PHARMACEUTICALS INC | ACHN | 1,725,000 | 225,000 | 7,918,000 | 1,603,000 | $4.59 |
| 03/31/2017 | ACHILLION PHARMACEUTICALS INC | ACHN | 1,500,000 | 125,000 | 6,315,000 | 636,000 | $4.21 |
| 12/31/2016 | ACHILLION PHARMACEUTICALS INC | ACHN | 1,375,000 | 59,000 | 5,679,000 | -4,981,000 | $4.13 |
| 09/30/2016 | ACHILLION PHARMACEUTICALS INC | ACHN | 1,316,000 | 3,500 | 10,660,000 | 422,000 | $8.10 |
| 06/30/2016 | ACHILLION PHARMACEUTICALS INC | ACHN | 1,312,500 | 92,500 | 10,238,000 | 820,000 | $7.80 |
| 03/31/2016 | ACHILLION PHARMACEUTICALS INC | ACHN | 1,220,000 | 115,000 | 9,418,000 | -2,505,000 | $7.72 |
| 12/31/2015 | ACHILLION PHARMACEUTICALS INC | ACHN | 1,105,000 | -20,000 | 11,923,000 | 4,149,000 | $10.79 |
| 09/30/2015 | ACHILLION PHARMACEUTICALS INC | ACHN | 1,125,000 | 1,125,000 | 7,774,000 | 7,774,000 | $6.91 |
| 06/30/2015 | ACHILLION PHARMACEUTICALS INC | ACHN | 1,100,000 | 1,100,000 | 9,746,000 | 9,746,000 | $8.86 |
| 03/31/2015 | ACHILLION PHARMACEUTICALS INC | ACHN | 600,000 | 600,000 | 5,916,000 | 5,916,000 | $9.86 |
| 12/31/2014 | ACHILLION PHARMACEUTICALS INC | ACHN | 365,000 | 365,000 | 4,471,000 | 4,471,000 | $12.25 |
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