PROTHENA CORP PLC

Ticker: PRTA CUSIP: G72800108 Class: Common Stock

Tower Research Capital LLC (TRC)'s Holding History (CIK: 0001533421)

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

Q4 2025
Shares 2,826 Value ($000) $27 Avg Close $10.18 Range $9.07 - $11.69
Q3 2025
Shares 1,285 Value ($000) $13 Avg Close $7.69 Range $5.96 - $9.85
Q2 2025
Shares 12,709 Value ($000) $77 Avg Close $7.50 Range $4.32 - $12.45
Q1 2025
Shares 1,894 Value ($000) $23 Avg Close $14.14 Range $11.78 - $16.66
Q4 2024
Shares 16,826 Value ($000) $233 Avg Close $15.77 Range $11.70 - $18.88
Q3 2024
Shares 5,457 Value ($000) $91 Avg Close $21.50 Range $15.52 - $25.42
Q2 2024
Shares 6,990 Value ($000) $144 Avg Close $21.64 Range $18.69 - $26.36
Q1 2024
Shares 584 Value ($000) $14 Avg Close $29.75 Range $24.25 - $41.55
Q4 2023
Shares 5,019 Value ($000) $182 Avg Close $38.49 Range $28.51 - $55.89
Q3 2023
Shares 1,398 Value ($000) $67 Avg Close $59.41 Range $45.22 - $73.14
Q2 2023
Shares 2,535 Value ($000) $173 Avg Close $64.50 Range $47.45 - $79.65
Q1 2023
Shares 1,803 Value ($000) $0 Avg Close $52.83 Range $45.06 - $60.82
Q4 2022
Shares 1,546 Value ($000) $0 Avg Close $58.56 Range $50.89 - $66.47
Q3 2022
Shares 8,313 Value ($000) $504 Avg Close $31.61 Range $25.02 - $64.00
Q2 2022
Shares 5,056 Value ($000) $137 Avg Close $29.25 Range $21.06 - $40.31
Q1 2022
Shares 8,223 Value ($000) $301 Avg Close $36.05 Range $29.53 - $49.77
Q4 2021
Shares 3,396 Value ($000) $168 Avg Close $55.45 Range $40.50 - $74.32
Q3 2021
Shares 5,318 Value ($000) $378 Avg Close $62.11 Range $45.09 - $79.75
Q2 2021
Shares 2,068 Value ($000) $106 Avg Close $31.20 Range $21.30 - $59.74
Q1 2021
Shares 1,928 Value ($000) $48 Avg Close $18.81 Range $10.72 - $28.66
Q4 2020
Shares 3,381 Value ($000) $41 Avg Close $11.83 Range $9.86 - $14.14
Q3 2020
Shares 12,558 Value ($000) $126 Avg Close $12.03 Range $9.67 - $13.78
Q2 2020
Shares 9,199 Value ($000) $96 Avg Close $11.11 Range $9.25 - $12.98
Q3 2019
Shares 252 Value ($000) $2 Avg Close $8.88 Range $6.71 - $10.70
Q1 2019
Shares 4,626 Value ($000) $56 Avg Close $12.49 Range $9.97 - $14.77
Q4 2018
Shares 5 Value ($000) $0 Avg Close $11.89 Range $8.63 - $13.83
Q1 2018
Shares 2,602 Value ($000) $96 Avg Close $36.37 Range $27.19 - $46.14
Q4 2017
Shares 579 Value ($000) $22 Avg Close $50.91 Range $34.85 - $64.96
Q3 2017
Shares 7,565 Value ($000) $490 Avg Close $61.26 Range $52.91 - $70.00
Q2 2017
Shares 118 Value ($000) $6 Avg Close $53.29 Range $48.23 - $59.10
Q1 2017
Shares 306 Value ($000) $17 Avg Close $52.54 Range $45.13 - $63.14
Q4 2016
Shares 617 Value ($000) $31 Avg Close $55.18 Range $40.58 - $68.18
Q3 2016
Shares 1,052 Value ($000) $63 Avg Close $53.65 Range $35.04 - $64.50
Q1 2016
Shares 49 Value ($000) $2 Avg Close $39.14 Range $28.20 - $67.32
Q4 2015
Shares 200 Value ($000) $14 Avg Close $60.32 Range $40.47 - $76.42
Q3 2015
Shares 337 Value ($000) $15 Avg Close $58.24 Range $42.20 - $70.52
Q2 2015
Shares 885 Value ($000) $46 Avg Close $39.47 Range $30.14 - $55.97
Q1 2015
Shares 3,211 Value ($000) $123 Avg Close $25.65 Range $18.76 - $45.00
Q4 2014
Shares 541 Value ($000) $11 Avg Close $20.87 Range $17.00 - $24.67
Q3 2014
Shares 81 Value ($000) $2 Avg Close $21.20 Range $16.71 - $24.31
Q2 2014
Shares 2,577 Value ($000) $58 Avg Close $25.01 Range $18.52 - $41.33
Q1 2014
Shares 1,294 Value ($000) $50 Avg Close $32.24 Range $24.42 - $49.24
Q4 2013
Shares 350 Value ($000) $9 Avg Close $25.08 Range $18.93 - $30.55
Q2 2013
Shares 3,000 Value ($000) $39 Avg Close $9.30 Range $6.49 - $14.00