PROTHENA CORP PLC

Ticker: PRTA CUSIP: G72800108 Class: Common Stock

Alyeska Investment Group, L.P.'s Holding History (CIK: 0001453072)

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

Q3 2014

Shares 101,131 Value ($000) $2,241 Avg Close $21.20 Range $16.71 - $24.31

Q2 2014

Shares 235,000 Value ($000) $5,299 Avg Close $25.01 Range $18.52 - $41.33

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2014	101,131	$2,241	$21.20	$16.71 - $24.31
Q2 2014	235,000	$5,299	$25.01	$18.52 - $41.33