PROTHENA CORP PLC

Ticker: PRTA CUSIP: G72800108 Class: Common Stock

SILVERARC CAPITAL MANAGEMENT, LLC's Holding History (CIK: 0001816307)

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

Q3 2023

Shares 26,629 Value ($000) $1,285 Avg Close $59.41 Range $45.22 - $73.14

Q2 2023

Shares 49,721 Value ($000) $3,395 Avg Close $64.50 Range $47.45 - $79.65

Q4 2022

Shares 71,706 Value ($000) $4,320 Avg Close $58.56 Range $50.89 - $66.47

Q3 2022

Shares 110,000 Value ($000) $6,669 Avg Close $31.61 Range $25.02 - $64.00

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2023	26,629	$1,285	$59.41	$45.22 - $73.14
Q2 2023	49,721	$3,395	$64.50	$47.45 - $79.65
Q4 2022	71,706	$4,320	$58.56	$50.89 - $66.47
Q3 2022	110,000	$6,669	$31.61	$25.02 - $64.00