PROTHENA CORP PLC

Ticker: PRTA CUSIP: G72800108 Class: Common Stock

Clearbridge Investments, LLC's Holding History (CIK: 0001348883)

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

Q3 2018

Shares 24 Value ($000) $1 Avg Close $14.44 Range $12.23 - $15.91

Q2 2018

Shares 24 Value ($000) $1 Avg Close $19.75 Range $10.43 - $44.75

Q1 2018

Shares 53 Value ($000) $2 Avg Close $36.37 Range $27.19 - $46.14

Q4 2017

Shares 24 Value ($000) $1 Avg Close $50.91 Range $34.85 - $64.96

Q3 2017

Shares 24 Value ($000) $2 Avg Close $61.26 Range $52.91 - $70.00

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	24	$1	$14.44	$12.23 - $15.91
Q2 2018	24	$1	$19.75	$10.43 - $44.75
Q1 2018	53	$2	$36.37	$27.19 - $46.14
Q4 2017	24	$1	$50.91	$34.85 - $64.96
Q3 2017	24	$2	$61.26	$52.91 - $70.00