PROTHENA CORP PLC

Ticker: PRTA CUSIP: G72800108 Class: Common Stock

Ballentine Partners, LLC's Holding History (CIK: 0001374889)

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

Q4 2025

Shares 18,070 Value ($000) $173 Avg Close $10.18 Range $9.07 - $11.69

Q3 2025

Shares 18,310 Value ($000) $179 Avg Close $7.69 Range $5.96 - $9.85

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	18,070	$173	$10.18	$9.07 - $11.69
Q3 2025	18,310	$179	$7.69	$5.96 - $9.85