PROTHENA CORP PLC

Ticker: PRTA CUSIP: G72800108 Class: Common Stock

Robeco Institutional Asset Management B.V.'s Holding History (CIK: 0001418773)

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

Q4 2021

Shares 21,932 Value ($000) $1,084 Avg Close $55.45 Range $40.50 - $74.32

Q3 2021

Shares 16,960 Value ($000) $1,208 Avg Close $62.11 Range $45.09 - $79.75

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2021	21,932	$1,084	$55.45	$40.50 - $74.32
Q3 2021	16,960	$1,208	$62.11	$45.09 - $79.75