PROTHENA CORP PLC

Ticker: PRTA CUSIP: G72800108 Class: Common Stock

Caitong International Asset Management Co., Ltd's Holding History (CIK: 0001963355)

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

Q4 2025

Shares 23 Value ($000) $0 Avg Close $10.18 Range $9.07 - $11.69

Q1 2025

Shares 238 Value ($000) $3 Avg Close $14.14 Range $11.78 - $16.66

Q4 2024

Shares 115 Value ($000) $2 Avg Close $15.77 Range $11.70 - $18.88

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	23	$0	$10.18	$9.07 - $11.69
Q1 2025	238	$3	$14.14	$11.78 - $16.66
Q4 2024	115	$2	$15.77	$11.70 - $18.88