PROTHENA CORP PLC

Ticker: PRTA CUSIP: G72800108 Class: Common Stock

FRED ALGER MANAGEMENT, LLC's Holding History (CIK: 0000003520)

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

Q1 2024

Shares 32,996 Value ($000) $817 Avg Close $29.75 Range $24.25 - $41.55

Q4 2023

Shares 33,724 Value ($000) $1,226 Avg Close $38.49 Range $28.51 - $55.89

Q2 2023

Shares 22,064 Value ($000) $1,507 Avg Close $64.50 Range $47.45 - $79.65

Q1 2023

Shares 21,319 Value ($000) $1,033 Avg Close $52.83 Range $45.06 - $60.82

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2024	32,996	$817	$29.75	$24.25 - $41.55
Q4 2023	33,724	$1,226	$38.49	$28.51 - $55.89
Q2 2023	22,064	$1,507	$64.50	$47.45 - $79.65
Q1 2023	21,319	$1,033	$52.83	$45.06 - $60.82