PROTHENA CORP PLC

Ticker: PRTA CUSIP: G72800108 Class: Common Stock

ACADIAN ASSET MANAGEMENT LLC's Holding History (CIK: 0000916542)

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

Q4 2025
Shares 1,437,358 Value ($000) $14 Avg Close $10.18 Range $9.07 - $11.69
Q3 2025
Shares 1,239,242 Value ($000) $12 Avg Close $7.69 Range $5.96 - $9.85
Q2 2025
Shares 1,018,177 Value ($000) $6 Avg Close $7.50 Range $4.32 - $12.45
Q4 2024
Shares 4,565 Value ($000) $0 Avg Close $15.77 Range $11.70 - $18.88
Q4 2021
Shares 7,961 Value ($000) $393 Avg Close $55.45 Range $40.50 - $74.32
Q3 2021
Shares 1,430 Value ($000) $101 Avg Close $62.11 Range $45.09 - $79.75
Q1 2021
Shares 66,043 Value ($000) $1,659 Avg Close $18.81 Range $10.72 - $28.66
Q4 2020
Shares 176,439 Value ($000) $2,119 Avg Close $11.83 Range $9.86 - $14.14
Q3 2020
Shares 210,017 Value ($000) $2,099 Avg Close $12.03 Range $9.67 - $13.78
Q2 2020
Shares 225,956 Value ($000) $2,362 Avg Close $11.11 Range $9.25 - $12.98
Q1 2020
Shares 210,254 Value ($000) $2,249 Avg Close $12.11 Range $7.10 - $16.05
Q4 2019
Shares 112,338 Value ($000) $1,778 Avg Close $10.72 Range $7.40 - $17.63
Q3 2019
Shares 55,569 Value ($000) $435 Avg Close $8.88 Range $6.71 - $10.70
Q2 2019
Shares 66,017 Value ($000) $697 Avg Close $10.27 Range $8.67 - $12.54
Q1 2019
Shares 52,168 Value ($000) $633 Avg Close $12.49 Range $9.97 - $14.77
Q1 2015
Shares 4,152 Value ($000) $158 Avg Close $25.65 Range $18.76 - $45.00
Q4 2014
Shares 4,152 Value ($000) $86 Avg Close $20.87 Range $17.00 - $24.67
Q3 2014
Shares 5,502 Value ($000) $122 Avg Close $21.20 Range $16.71 - $24.31
Q3 2013
Shares 7,290 Value ($000) $147 Avg Close $17.69 Range $12.14 - $22.48