PROTHENA CORP PLC

Ticker: PRTA CUSIP: G72800108 Class: Common Stock

PRIMECAP MANAGEMENT CO/CA/'s Holding History (CIK: 0000763212)

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

Q3 2024

Shares 35,500 Value ($000) $594 Avg Close $21.50 Range $15.52 - $25.42

Q2 2024

Shares 36,500 Value ($000) $753 Avg Close $21.64 Range $18.69 - $26.36

Q1 2024

Shares 36,500 Value ($000) $904 Avg Close $29.75 Range $24.25 - $41.55

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2024	35,500	$594	$21.50	$15.52 - $25.42
Q2 2024	36,500	$753	$21.64	$18.69 - $26.36
Q1 2024	36,500	$904	$29.75	$24.25 - $41.55