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Rock Springs Capital Management LP
> IDXX
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2023 | IDEXX LABORATORIES INC /DE | IDXX | 194,500 | -13,000 | 97,683,735,000 | -6,082,865,000 | $502,230.00 |
| 03/31/2023 | IDEXX LABORATORIES INC /DE | IDXX | 207,500 | 0 | 103,766,600,000 | 19,114,900,000 | $500,080.00 |
| 12/31/2022 | IDEXX LABORATORIES INC /DE | IDXX | 207,500 | -16,815 | 84,651,700,000 | 84,578,618,000 | $407,960.00 |
| 09/30/2022 | IDEXX LABORATORIES INC /DE | IDXX | 224,315 | 565 | 73,082,000 | -5,394,000 | $325.80 |
| 06/30/2022 | IDEXX LABORATORIES INC /DE | IDXX | 223,750 | 5,000 | 78,476,000 | -41,193,000 | $350.73 |
| 03/31/2022 | IDEXX LABORATORIES INC /DE | IDXX | 218,750 | 38,750 | 119,669,000 | 1,146,000 | $547.06 |
| 12/31/2021 | IDEXX LABORATORIES INC /DE | IDXX | 180,000 | 0 | 118,523,000 | 6,581,000 | $658.46 |
| 09/30/2021 | IDEXX LABORATORIES INC /DE | IDXX | 180,000 | 0 | 111,942,000 | -1,737,000 | $621.90 |
| 06/30/2021 | IDEXX LABORATORIES INC /DE | IDXX | 180,000 | 0 | 113,679,000 | 25,603,000 | $631.55 |
| 03/31/2021 | IDEXX LABORATORIES INC /DE | IDXX | 180,000 | 55,000 | 88,076,000 | 25,592,000 | $489.31 |
| 12/31/2020 | IDEXX LABORATORIES INC /DE | IDXX | 125,000 | 0 | 62,484,000 | 13,345,000 | $499.87 |
| 09/30/2020 | IDEXX LABORATORIES INC /DE | IDXX | 125,000 | 0 | 49,139,000 | 7,869,000 | $393.11 |
| 06/30/2020 | IDEXX LABORATORIES INC /DE | IDXX | 125,000 | 0 | 41,270,000 | 10,990,000 | $330.16 |
| 03/31/2020 | IDEXX LABORATORIES INC /DE | IDXX | 125,000 | 4,800 | 30,280,000 | -1,108,000 | $242.24 |
| 12/31/2019 | IDEXX LABORATORIES INC /DE | IDXX | 120,200 | 0 | 31,388,000 | -1,298,000 | $261.13 |
| 09/30/2019 | IDEXX LABORATORIES INC /DE | IDXX | 120,200 | 0 | 32,686,000 | -409,000 | $271.93 |
| 06/30/2019 | IDEXX LABORATORIES INC /DE | IDXX | 120,200 | 0 | 33,095,000 | 6,218,000 | $275.33 |
| 03/31/2019 | IDEXX LABORATORIES INC /DE | IDXX | 120,200 | 9,700 | 26,877,000 | 6,322,000 | $223.60 |
| 12/31/2018 | IDEXX LABORATORIES INC /DE | IDXX | 110,500 | 27,000 | 20,555,000 | -292,000 | $186.02 |
| 09/30/2018 | IDEXX LABORATORIES INC /DE | IDXX | 83,500 | 11,500 | 20,847,000 | 5,155,000 | $249.66 |
| 06/30/2018 | IDEXX LABORATORIES INC /DE | IDXX | 72,000 | 9,000 | 15,692,000 | 3,634,000 | $217.94 |
| 03/31/2018 | IDEXX LABORATORIES INC /DE | IDXX | 63,000 | 63,000 | 12,058,000 | 12,058,000 | $191.40 |
| 06/30/2016 | IDEXX LABORATORIES INC /DE | IDXX | 0 | -112,500 | 0 | -8,353,000 | |
| 03/31/2016 | IDEXX LABORATORIES INC /DE | IDXX | 0 | -127,500 | 0 | -9,297,000 | |
| 12/31/2015 | IDEXX LABORATORIES INC /DE | IDXX | 127,500 | 15,000 | 9,297,000 | 944,000 | $72.92 |
| 09/30/2015 | IDEXX LABORATORIES INC /DE | IDXX | 112,500 | 112,500 | 8,353,000 | 8,353,000 | $74.25 |
| 06/30/2015 | IDEXX LABORATORIES INC /DE | IDXX | 111,000 | 111,000 | 7,120,000 | 7,120,000 | $64.14 |
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