PROTHENA CORP PLC

Ticker: PRTA CUSIP: G72800108 Class: Common Stock

Moors & Cabot, Inc.'s Holding History (CIK: 0001607239)

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

Q3 2020

Shares 14,350 Value ($000) $143 Avg Close $12.03 Range $9.67 - $13.78

Q4 2019

Shares 12,050 Value ($000) $190 Avg Close $10.72 Range $7.40 - $17.63

Q1 2016

Shares 5,510 Value ($000) $224 Avg Close $39.14 Range $28.20 - $67.32

Q4 2015

Shares 5,432 Value ($000) $372 Avg Close $60.32 Range $40.47 - $76.42

Q3 2015

Shares 6,543 Value ($000) $298 Avg Close $58.24 Range $42.20 - $70.52

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2020	14,350	$143	$12.03	$9.67 - $13.78
Q4 2019	12,050	$190	$10.72	$7.40 - $17.63
Q1 2016	5,510	$224	$39.14	$28.20 - $67.32
Q4 2015	5,432	$372	$60.32	$40.47 - $76.42
Q3 2015	6,543	$298	$58.24	$42.20 - $70.52