PROTHENA CORP PLC

Ticker: PRTA CUSIP: G72800108 Class: Common Stock

Siren, L.L.C.'s Holding History (CIK: 0002005245)

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

Q1 2025

Shares 1,283,555 Value ($000) $15,884 Avg Close $14.14 Range $11.78 - $16.66

Q4 2024

Shares 1,099,840 Value ($000) $15,233 Avg Close $15.77 Range $11.70 - $18.88

Q3 2024

Shares 1,099,840 Value ($000) $18,400 Avg Close $21.50 Range $15.52 - $25.42

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2025	1,283,555	$15,884	$14.14	$11.78 - $16.66
Q4 2024	1,099,840	$15,233	$15.77	$11.70 - $18.88
Q3 2024	1,099,840	$18,400	$21.50	$15.52 - $25.42