PROTHENA CORP PLC

Ticker: PRTA CUSIP: G72800108 Class: Common Stock

SG Americas Securities, LLC's Holding History (CIK: 0001313360)

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

Q4 2025
Shares 63,018 Value ($000) $1 Avg Close $10.18 Range $9.07 - $11.69
Q3 2025
Shares 56,719 Value ($000) $1 Avg Close $7.69 Range $5.96 - $9.85
Q2 2025
Shares 51,941 Value ($000) $0 Avg Close $7.50 Range $4.32 - $12.45
Q1 2025
Shares 72,559 Value ($000) $1 Avg Close $14.14 Range $11.78 - $16.66
Q4 2024
Shares 37,612 Value ($000) $1 Avg Close $15.77 Range $11.70 - $18.88
Q3 2024
Shares 14,087 Value ($000) $0 Avg Close $21.50 Range $15.52 - $25.42
Q2 2024
Shares 54,572 Value ($000) $1 Avg Close $21.64 Range $18.69 - $26.36
Q1 2024
Shares 16,720 Value ($000) $0 Avg Close $29.75 Range $24.25 - $41.55
Q4 2023
Shares 135,857 Value ($000) $5 Avg Close $38.49 Range $28.51 - $55.89
Q3 2023
Shares 92,494 Value ($000) $4 Avg Close $59.41 Range $45.22 - $73.14
Q2 2023
Shares 3,555 Value ($000) $0 Avg Close $64.50 Range $47.45 - $79.65
Q1 2023
Shares 109,401 Value ($000) $5 Avg Close $52.83 Range $45.06 - $60.82
Q4 2022
Shares 78,772 Value ($000) $5 Avg Close $58.56 Range $50.89 - $66.47
Q3 2022
Shares 135,588 Value ($000) $8,221 Avg Close $31.61 Range $25.02 - $64.00
Q2 2022
Shares 154,588 Value ($000) $4,197 Avg Close $29.25 Range $21.06 - $40.31
Q1 2022
Shares 143,506 Value ($000) $5,248 Avg Close $36.05 Range $29.53 - $49.77
Q4 2021
Shares 154,843 Value ($000) $7,649 Avg Close $55.45 Range $40.50 - $74.32
Q3 2021
Shares 116,076 Value ($000) $8,268 Avg Close $62.11 Range $45.09 - $79.75
Q2 2021
Shares 10,020 Value ($000) $515 Avg Close $31.20 Range $21.30 - $59.74
Q1 2021
Shares 10,540 Value ($000) $265 Avg Close $18.81 Range $10.72 - $28.66
Q4 2020
Shares 13,379 Value ($000) $161 Avg Close $11.83 Range $9.86 - $14.14
Q2 2020
Shares 12,178 Value ($000) $127 Avg Close $11.11 Range $9.25 - $12.98
Q1 2020
Shares 16,533 Value ($000) $177 Avg Close $12.11 Range $7.10 - $16.05
Q4 2019
Shares 9,134 Value ($000) $145 Avg Close $10.72 Range $7.40 - $17.63
Q1 2019
Shares 9,364 Value ($000) $114 Avg Close $12.49 Range $9.97 - $14.77
Q2 2018
Shares 7,010 Value ($000) $102 Avg Close $19.75 Range $10.43 - $44.75
Q1 2018
Shares 6,019 Value ($000) $221 Avg Close $36.37 Range $27.19 - $46.14
Q4 2017
Shares 4,707 Value ($000) $176 Avg Close $50.91 Range $34.85 - $64.96
Q3 2017
Shares 6,942 Value ($000) $450 Avg Close $61.26 Range $52.91 - $70.00
Q2 2017
Shares 4,064 Value ($000) $220 Avg Close $53.29 Range $48.23 - $59.10
Q1 2017
Shares 3,496 Value ($000) $195 Avg Close $52.54 Range $45.13 - $63.14
Q4 2016
Shares 7,245 Value ($000) $356 Avg Close $55.18 Range $40.58 - $68.18
Q3 2016
Shares 8,928 Value ($000) $535 Avg Close $53.65 Range $35.04 - $64.50
Q2 2016
Shares 3,164 Value ($000) $111 Avg Close $43.55 Range $33.53 - $51.45
Q1 2016
Shares 8,123 Value ($000) $334 Avg Close $39.14 Range $28.20 - $67.32
Q4 2015
Shares 5,280 Value ($000) $360 Avg Close $60.32 Range $40.47 - $76.42
Q3 2015
Shares 7,615 Value ($000) $345 Avg Close $58.24 Range $42.20 - $70.52
Q2 2015
Shares 26,297 Value ($000) $1,385 Avg Close $39.47 Range $30.14 - $55.97
Q1 2015
Shares 19,910 Value ($000) $759 Avg Close $25.65 Range $18.76 - $45.00
Q4 2014
Shares 23,435 Value ($000) $487 Avg Close $20.87 Range $17.00 - $24.67
Q3 2014
Shares 7,495 Value ($000) $166 Avg Close $21.20 Range $16.71 - $24.31
Q2 2014
Shares 8,654 Value ($000) $195 Avg Close $25.01 Range $18.52 - $41.33
Q1 2014
Shares 6,264 Value ($000) $240 Avg Close $32.24 Range $24.42 - $49.24
Q3 2013
Shares 5,386 Value ($000) $109 Avg Close $17.69 Range $12.14 - $22.48