ARBUTUS BIOPHARMA CORP

Ticker: ABUS CUSIP: 03879J100 Class: COM

EcoR1 Capital, LLC's Holding History (CIK: 0001587114)

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

Q1 2019

Shares 2,172,883 Value ($000) $7,779 Avg Close $3.84 Range $3.30 - $4.75

Q4 2018

Shares 3,281,502 Value ($000) $12,568 Avg Close $4.93 Range $3.20 - $9.82

Q3 2018

Shares 1,231,800 Value ($000) $11,641 Avg Close $9.93 Range $7.30 - $12.60

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2019	2,172,883	$7,779	$3.84	$3.30 - $4.75
Q4 2018	3,281,502	$12,568	$4.93	$3.20 - $9.82
Q3 2018	1,231,800	$11,641	$9.93	$7.30 - $12.60