PROTHENA CORP PLC

Ticker: PRTA CUSIP: G72800108 Class: Common Stock

LONESTAR CAPITAL MANAGEMENT LLC's Holding History (CIK: 0001317410)

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

Q4 2020

Shares 46,965 Value ($000) $564 Avg Close $11.83 Range $9.86 - $14.14

Q3 2020

Shares 216,400 Value ($000) $2,162 Avg Close $12.03 Range $9.67 - $13.78

Q2 2020

Shares 289,020 Value ($000) $3,023 Avg Close $11.11 Range $9.25 - $12.98

Q1 2020

Shares 340,006 Value ($000) $3,638 Avg Close $12.11 Range $7.10 - $16.05

Q4 2019

Shares 300,000 Value ($000) $4,749 Avg Close $10.72 Range $7.40 - $17.63

Q3 2019

Shares 300,000 Value ($000) $2,352 Avg Close $8.88 Range $6.71 - $10.70

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2020	46,965	$564	$11.83	$9.86 - $14.14
Q3 2020	216,400	$2,162	$12.03	$9.67 - $13.78
Q2 2020	289,020	$3,023	$11.11	$9.25 - $12.98
Q1 2020	340,006	$3,638	$12.11	$7.10 - $16.05
Q4 2019	300,000	$4,749	$10.72	$7.40 - $17.63
Q3 2019	300,000	$2,352	$8.88	$6.71 - $10.70