WAVE LIFE SCIENCES LTD

Ticker: WVE CUSIP: Y95308105 Class: Common Stock

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

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

Q4 2018

Shares 233,933 Value ($000) $9,835 Avg Close $44.47 Range $34.38 - $51.68

Q3 2018

Shares 44,841 Value ($000) $2,242 Avg Close $45.12 Range $35.35 - $56.00

Q2 2018

Shares 412,871 Value ($000) $15,792 Avg Close $43.05 Range $32.25 - $50.88

Q1 2018

Shares 1,459,072 Value ($000) $58,509 Avg Close $42.04 Range $31.65 - $55.95

Q4 2017

Shares 936,163 Value ($000) $32,859 Avg Close $29.15 Range $21.00 - $39.70

Q3 2017

Shares 564,248 Value ($000) $12,272 Avg Close $20.10 Range $15.15 - $25.35

Q1 2017

Shares 10,000 Value ($000) $275 Avg Close $27.93 Range $24.98 - $31.25

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2018	233,933	$9,835	$44.47	$34.38 - $51.68
Q3 2018	44,841	$2,242	$45.12	$35.35 - $56.00
Q2 2018	412,871	$15,792	$43.05	$32.25 - $50.88
Q1 2018	1,459,072	$58,509	$42.04	$31.65 - $55.95
Q4 2017	936,163	$32,859	$29.15	$21.00 - $39.70
Q3 2017	564,248	$12,272	$20.10	$15.15 - $25.35
Q1 2017	10,000	$275	$27.93	$24.98 - $31.25