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Atika Capital Management LLC
> PRTA
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2023 | PROTHENA CORP PUBLIC LTD CO | PRTA | 97,500 | 48,922 | 6,657,300,000 | 4,302,725,000 | $68,280.00 |
| 03/31/2023 | PROTHENA CORP PUBLIC LTD CO | PRTA | 48,578 | 48,578 | 2,354,575,000 | 2,354,575,000 | $48,469.99 |
| 12/31/2021 | PROTHENA CORP PUBLIC LTD CO | PRTA | 0 | -224,600 | 0 | -15,999,000 | |
| 09/30/2021 | PROTHENA CORP PUBLIC LTD CO | PRTA | 224,600 | -9,400 | 15,999,000 | 3,969,000 | $71.23 |
| 06/30/2021 | PROTHENA CORP PUBLIC LTD CO | PRTA | 234,000 | 216,094 | 12,030,000 | 11,580,000 | $51.41 |
| 03/31/2021 | PROTHENA CORP PUBLIC LTD CO | PRTA | 17,906 | 17,906 | 450,000 | 450,000 | $25.13 |
| 03/31/2016 | PROTHENA CORP PUBLIC LTD CO | PRTA | 0 | -15,000 | 0 | -1,021,000 | |
| 12/31/2015 | PROTHENA CORP PUBLIC LTD CO | PRTA | 15,000 | 15,000 | 1,021,000 | 1,021,000 | $68.07 |
| 09/30/2015 | PROTHENA CORP PUBLIC LTD CO | PRTA | 0 | -57,500 | 0 | -2,203,000 | |
| 06/30/2014 | PROTHENA CORP PUBLIC LTD CO | PRTA | 0 | -57,500 | 0 | -2,203,000 | |
| 03/31/2014 | PROTHENA CORP PUBLIC LTD CO | PRTA | 57,500 | 57,500 | 2,203,000 | 2,203,000 | $38.31 |
| 12/31/2013 | PROTHENA CORP PUBLIC LTD CO | PRTA | 37,500 | 37,500 | 995,000 | 995,000 | $26.53 |
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