PROTHENA CORP PLC

Ticker: PRTA CUSIP: G72800108 Class: Common Stock

MASSACHUSETTS FINANCIAL SERVICES CO /MA/'s Holding History (CIK: 0000912938)

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

Q4 2025
Shares 45,970 Value ($000) $439 Avg Close $10.18 Range $9.07 - $11.69
Q3 2025
Shares 47,489 Value ($000) $463 Avg Close $7.69 Range $5.96 - $9.85
Q2 2025
Shares 44,364 Value ($000) $269 Avg Close $7.50 Range $4.32 - $12.45
Q1 2025
Shares 43,816 Value ($000) $542 Avg Close $14.14 Range $11.78 - $16.66
Q4 2024
Shares 44,815 Value ($000) $621 Avg Close $15.77 Range $11.70 - $18.88
Q1 2022
Shares 13,556 Value ($000) $496 Avg Close $36.05 Range $29.53 - $49.77
Q4 2021
Shares 41,858 Value ($000) $2,068 Avg Close $55.45 Range $40.50 - $74.32
Q3 2021
Shares 42,706 Value ($000) $3,042 Avg Close $62.11 Range $45.09 - $79.75
Q2 2021
Shares 43,268 Value ($000) $2,224 Avg Close $31.20 Range $21.30 - $59.74
Q1 2021
Shares 73,339 Value ($000) $1,842 Avg Close $18.81 Range $10.72 - $28.66
Q4 2020
Shares 108,594 Value ($000) $1,304 Avg Close $11.83 Range $9.86 - $14.14
Q3 2020
Shares 87,221 Value ($000) $871 Avg Close $12.03 Range $9.67 - $13.78