PROTHENA CORP PLC

Ticker: PRTA CUSIP: G72800108 Class: Common Stock

ADVISORY RESEARCH INC's Holding History (CIK: 0000902584)

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

Q2 2023

Shares 22,039 Value ($000) $1,505 Avg Close $64.50 Range $47.45 - $79.65

Q1 2023

Shares 7,151 Value ($000) $347 Avg Close $52.83 Range $45.06 - $60.82

Q4 2022

Shares 7,120 Value ($000) $429 Avg Close $58.56 Range $50.89 - $66.47

Q4 2021

Shares 10,975 Value ($000) $542 Avg Close $55.45 Range $40.50 - $74.32

Q3 2021

Shares 19,684 Value ($000) $1,402 Avg Close $62.11 Range $45.09 - $79.75

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2023	22,039	$1,505	$64.50	$47.45 - $79.65
Q1 2023	7,151	$347	$52.83	$45.06 - $60.82
Q4 2022	7,120	$429	$58.56	$50.89 - $66.47
Q4 2021	10,975	$542	$55.45	$40.50 - $74.32
Q3 2021	19,684	$1,402	$62.11	$45.09 - $79.75