PROTHENA CORP PLC

Ticker: PRTA CUSIP: G72800108 Class: Common Stock

Bellevue Group AG's Holding History (CIK: 0001674546)

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

Q1 2018

Shares 30,850 Value ($000) $1,133 Avg Close $36.37 Range $27.19 - $46.14

Q4 2017

Shares 31,350 Value ($000) $1,175 Avg Close $50.91 Range $34.85 - $64.96

Q3 2017

Shares 37,400 Value ($000) $2,422 Avg Close $61.26 Range $52.91 - $70.00

Q2 2017

Shares 41,000 Value ($000) $2,219 Avg Close $53.29 Range $48.23 - $59.10

Q1 2017

Shares 41,000 Value ($000) $2,287 Avg Close $52.54 Range $45.13 - $63.14

Q4 2016

Shares 41,000 Value ($000) $2,017 Avg Close $55.18 Range $40.58 - $68.18

Q3 2016

Shares 41,000 Value ($000) $2,459 Avg Close $53.65 Range $35.04 - $64.50

Q2 2016

Shares 31,000 Value ($000) $1,084 Avg Close $43.55 Range $33.53 - $51.45

Q1 2016

Shares 31,000 Value ($000) $1,276 Avg Close $39.14 Range $28.20 - $67.32

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2018	30,850	$1,133	$36.37	$27.19 - $46.14
Q4 2017	31,350	$1,175	$50.91	$34.85 - $64.96
Q3 2017	37,400	$2,422	$61.26	$52.91 - $70.00
Q2 2017	41,000	$2,219	$53.29	$48.23 - $59.10
Q1 2017	41,000	$2,287	$52.54	$45.13 - $63.14
Q4 2016	41,000	$2,017	$55.18	$40.58 - $68.18
Q3 2016	41,000	$2,459	$53.65	$35.04 - $64.50
Q2 2016	31,000	$1,084	$43.55	$33.53 - $51.45
Q1 2016	31,000	$1,276	$39.14	$28.20 - $67.32