PROTHENA CORP PLC

Ticker: PRTA CUSIP: G72800108 Class: Common Stock

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

Note: Option positions (PUT/CALL) are excluded.

Q3 2025
Shares 6,949 Value ($000) $68 Avg Close $7.69 Range $5.96 - $9.85
Q2 2025
Shares 32,258 Value ($000) $196 Avg Close $7.50 Range $4.32 - $12.45
Q4 2024
Shares 4,824 Value ($000) $67 Avg Close $15.77 Range $11.70 - $18.88
Q3 2024
Shares 7,434 Value ($000) $124 Avg Close $21.50 Range $15.52 - $25.42
Q2 2024
Shares 6,233 Value ($000) $129 Avg Close $21.64 Range $18.69 - $26.36
Q1 2024
Shares 2,296 Value ($000) $57 Avg Close $29.75 Range $24.25 - $41.55
Q4 2023
Shares 27,456 Value ($000) $998 Avg Close $38.49 Range $28.51 - $55.89
Q3 2022
Shares 3,813 Value ($000) $231 Avg Close $31.61 Range $25.02 - $64.00
Q1 2022
Shares 1,029 Value ($000) $38 Avg Close $36.05 Range $29.53 - $49.77
Q4 2021
Shares 4,188 Value ($000) $207 Avg Close $55.45 Range $40.50 - $74.32
Q3 2021
Shares 1,937 Value ($000) $138 Avg Close $62.11 Range $45.09 - $79.75
Q1 2021
Shares 7,550 Value ($000) $190 Avg Close $18.81 Range $10.72 - $28.66
Q4 2020
Shares 12,446 Value ($000) $149 Avg Close $11.83 Range $9.86 - $14.14
Q3 2020
Shares 10,235 Value ($000) $102 Avg Close $12.03 Range $9.67 - $13.78
Q2 2020
Shares 8,545 Value ($000) $89 Avg Close $11.11 Range $9.25 - $12.98
Q1 2020
Shares 18,862 Value ($000) $202 Avg Close $12.11 Range $7.10 - $16.05
Q4 2019
Shares 27,558 Value ($000) $436 Avg Close $10.72 Range $7.40 - $17.63
Q3 2019
Shares 6,184 Value ($000) $48 Avg Close $8.88 Range $6.71 - $10.70
Q2 2019
Shares 13,287 Value ($000) $140 Avg Close $10.27 Range $8.67 - $12.54
Q1 2019
Shares 5,727 Value ($000) $69 Avg Close $12.49 Range $9.97 - $14.77
Q4 2018
Shares 38,384 Value ($000) $395 Avg Close $11.89 Range $8.63 - $13.83
Q3 2018
Shares 36,531 Value ($000) $478 Avg Close $14.44 Range $12.23 - $15.91
Q2 2018
Shares 48,228 Value ($000) $703 Avg Close $19.75 Range $10.43 - $44.75
Q1 2018
Shares 17,159 Value ($000) $630 Avg Close $36.37 Range $27.19 - $46.14
Q4 2017
Shares 3,287 Value ($000) $123 Avg Close $50.91 Range $34.85 - $64.96
Q4 2016
Shares 1,950 Value ($000) $96 Avg Close $55.18 Range $40.58 - $68.18
Q3 2016
Shares 32,240 Value ($000) $1,933 Avg Close $53.65 Range $35.04 - $64.50
Q2 2016
Shares 8,992 Value ($000) $314 Avg Close $43.55 Range $33.53 - $51.45
Q1 2016
Shares 3,373 Value ($000) $139 Avg Close $39.14 Range $28.20 - $67.32
Q4 2015
Shares 27,723 Value ($000) $1,888 Avg Close $60.32 Range $40.47 - $76.42
Q3 2015
Shares 37,693 Value ($000) $1,709 Avg Close $58.24 Range $42.20 - $70.52
Q2 2015
Shares 34,159 Value ($000) $1,799 Avg Close $39.47 Range $30.14 - $55.97
Q1 2015
Shares 17,227 Value ($000) $657 Avg Close $25.65 Range $18.76 - $45.00
Q4 2014
Shares 8,669 Value ($000) $180 Avg Close $20.87 Range $17.00 - $24.67
Q3 2014
Shares 19,427 Value ($000) $431 Avg Close $21.20 Range $16.71 - $24.31
Q2 2014
Shares 23,858 Value ($000) $538 Avg Close $25.01 Range $18.52 - $41.33
Q1 2014
Shares 18,256 Value ($000) $699 Avg Close $32.24 Range $24.42 - $49.24
Q3 2013
Shares 928 Value ($000) $19 Avg Close $17.69 Range $12.14 - $22.48
Q2 2013
Shares 4,075 Value ($000) $53 Avg Close $9.30 Range $6.49 - $14.00