PROTHENA CORP PLC

Ticker: PRTA CUSIP: G72800108 Class: Common Stock

Paloma Partners Management Co's Holding History (CIK: 0001103882)

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

Q2 2020

Shares 22,869 Value ($000) $239 Avg Close $11.11 Range $9.25 - $12.98

Q3 2018

Shares 26,700 Value ($000) $349 Avg Close $14.44 Range $12.23 - $15.91

Q4 2015

Shares 6,233 Value ($000) $424 Avg Close $60.32 Range $40.47 - $76.42

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2020	22,869	$239	$11.11	$9.25 - $12.98
Q3 2018	26,700	$349	$14.44	$12.23 - $15.91
Q4 2015	6,233	$424	$60.32	$40.47 - $76.42