PROTHENA CORP PLC

Ticker: PRTA CUSIP: G72800108 Class: Common Stock

Spark Investment Management LLC's Holding History (CIK: 0001554871)

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

Q4 2017

Shares 14,900 Value ($000) $558 Avg Close $50.91 Range $34.85 - $64.96

Q2 2014

Shares 48,800 Value ($000) $1,099 Avg Close $25.01 Range $18.52 - $41.33

Q1 2014

Shares 52,600 Value ($000) $2,013 Avg Close $32.24 Range $24.42 - $49.24

Q4 2013

Shares 41,700 Value ($000) $1,105 Avg Close $25.08 Range $18.93 - $30.55

Q3 2013

Shares 41,700 Value ($000) $843 Avg Close $17.69 Range $12.14 - $22.48

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	14,900	$558	$50.91	$34.85 - $64.96
Q2 2014	48,800	$1,099	$25.01	$18.52 - $41.33
Q1 2014	52,600	$2,013	$32.24	$24.42 - $49.24
Q4 2013	41,700	$1,105	$25.08	$18.93 - $30.55
Q3 2013	41,700	$843	$17.69	$12.14 - $22.48