PROTHENA CORP PLC

Ticker: PRTA CUSIP: G72800108 Class: Common Stock

Assenagon Asset Management S.A.'s Holding History (CIK: 0001546007)

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

Q4 2025

Shares 76,769 Value ($000) $733 Avg Close $10.18 Range $9.07 - $11.69

Q3 2025

Shares 89,704 Value ($000) $876 Avg Close $7.69 Range $5.96 - $9.85

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	76,769	$733	$10.18	$9.07 - $11.69
Q3 2025	89,704	$876	$7.69	$5.96 - $9.85