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Rock Springs Capital Management LP
> PRTA
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2023 | PROTHENA CORP PUBLIC LTD CO | PRTA | 753,462 | 0 | 51,446,385,000 | 14,926,082,000 | $68,280.00 |
| 03/31/2023 | PROTHENA CORP PUBLIC LTD CO | PRTA | 753,462 | 0 | 36,520,303,000 | -8,875,783,000 | $48,470.00 |
| 12/31/2022 | PROTHENA CORP PUBLIC LTD CO | PRTA | 753,462 | 75,000 | 45,396,086,000 | 45,354,951,000 | $60,250.00 |
| 09/30/2022 | PROTHENA CORP PUBLIC LTD CO | PRTA | 678,462 | 0 | 41,135,000 | 22,715,000 | $60.63 |
| 06/30/2022 | PROTHENA CORP PUBLIC LTD CO | PRTA | 678,462 | 14,932 | 18,420,000 | -5,845,000 | $27.15 |
| 03/31/2022 | PROTHENA CORP PUBLIC LTD CO | PRTA | 663,530 | 15,800 | 24,265,000 | -7,733,000 | $36.57 |
| 12/31/2021 | PROTHENA CORP PUBLIC LTD CO | PRTA | 647,730 | -62,700 | 31,998,000 | -18,606,000 | $49.40 |
| 09/30/2021 | PROTHENA CORP PUBLIC LTD CO | PRTA | 710,430 | -239,661 | 50,604,000 | 1,760,000 | $71.23 |
| 06/30/2021 | PROTHENA CORP PUBLIC LTD CO | PRTA | 950,091 | -206,809 | 48,844,000 | 19,783,000 | $51.41 |
| 03/31/2021 | PROTHENA CORP PUBLIC LTD CO | PRTA | 1,156,900 | 15,800 | 29,061,000 | 15,356,000 | $25.12 |
| 12/31/2020 | PROTHENA CORP PUBLIC LTD CO | PRTA | 1,141,100 | 115,893 | 13,705,000 | 3,463,000 | $12.01 |
| 09/30/2020 | PROTHENA CORP PUBLIC LTD CO | PRTA | 1,025,207 | 35,989 | 10,242,000 | -105,000 | $9.99 |
| 06/30/2020 | PROTHENA CORP PUBLIC LTD CO | PRTA | 989,218 | 489,218 | 10,347,000 | 4,997,000 | $10.46 |
| 03/31/2020 | PROTHENA CORP PUBLIC LTD CO | PRTA | 500,000 | 500,000 | 5,350,000 | 5,350,000 | $10.70 |
| 06/30/2018 | PROTHENA CORP PUBLIC LTD CO | PRTA | 0 | -318,500 | 0 | -11,692,000 | |
| 03/31/2018 | PROTHENA CORP PUBLIC LTD CO | PRTA | 318,500 | 8,500 | 11,692,000 | 70,000 | $36.71 |
| 12/31/2017 | PROTHENA CORP PUBLIC LTD CO | PRTA | 310,000 | 500 | 11,622,000 | -8,424,000 | $37.49 |
| 09/30/2017 | PROTHENA CORP PUBLIC LTD CO | PRTA | 309,500 | 0 | 20,046,000 | 3,296,000 | $64.77 |
| 06/30/2017 | PROTHENA CORP PUBLIC LTD CO | PRTA | 309,500 | 0 | 16,750,000 | -517,000 | $54.12 |
| 03/31/2017 | PROTHENA CORP PUBLIC LTD CO | PRTA | 309,500 | 0 | 17,267,000 | 2,043,000 | $55.79 |
| 12/31/2016 | PROTHENA CORP PUBLIC LTD CO | PRTA | 309,500 | 1,500 | 15,224,000 | -3,247,000 | $49.19 |
| 09/30/2016 | PROTHENA CORP PUBLIC LTD CO | PRTA | 308,000 | 0 | 18,471,000 | 7,703,000 | $59.97 |
| 06/30/2016 | PROTHENA CORP PUBLIC LTD CO | PRTA | 308,000 | 0 | 10,768,000 | -1,909,000 | $34.96 |
| 03/31/2016 | PROTHENA CORP PUBLIC LTD CO | PRTA | 308,000 | 60,000 | 12,677,000 | -4,214,000 | $41.16 |
| 12/31/2015 | PROTHENA CORP PUBLIC LTD CO | PRTA | 248,000 | 0 | 16,891,000 | 5,647,000 | $68.11 |
| 09/30/2015 | PROTHENA CORP PUBLIC LTD CO | PRTA | 248,000 | 248,000 | 11,244,000 | 11,244,000 | $45.34 |
| 06/30/2015 | PROTHENA CORP PUBLIC LTD CO | PRTA | 250,000 | 250,000 | 13,168,000 | 13,168,000 | $52.67 |
| 03/31/2015 | PROTHENA CORP PUBLIC LTD CO | PRTA | 237,500 | 237,500 | 9,058,000 | 9,058,000 | $38.14 |
| 12/31/2014 | PROTHENA CORP PUBLIC LTD CO | PRTA | 202,500 | 202,500 | 4,204,000 | 4,204,000 | $20.76 |
| 09/30/2014 | PROTHENA CORP PUBLIC LTD CO | PRTA | 202,500 | 202,500 | 4,487,000 | 4,487,000 | $22.16 |
| 06/30/2014 | PROTHENA CORP PUBLIC LTD CO | PRTA | 150,000 | 150,000 | 3,383,000 | 3,383,000 | $22.55 |
| 03/31/2014 | PROTHENA CORP PUBLIC LTD CO | PRTA | 65,000 | 65,000 | 2,490,000 | 2,490,000 | $38.31 |
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