ERASCA INC

Ticker: ERAS CUSIP: 29479A108 Class: 0

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

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

Q1 2023

Shares 678,441 Value ($000) $2,042 Avg Close $3.64 Range $2.65 - $4.60

Q4 2022

Shares 678,441 Value ($000) $2,924 Avg Close $6.78 Range $3.85 - $9.25

Q3 2022

Shares 678,441 Value ($000) $5,292 Avg Close $8.05 Range $5.49 - $10.74

Q2 2022

Shares 678,441 Value ($000) $3,779 Avg Close $6.55 Range $4.51 - $9.11

Q1 2022

Shares 678,441 Value ($000) $5,835 Avg Close $11.59 Range $8.58 - $15.71

Q4 2021

Shares 700,000 Value ($000) $10,906 Avg Close $17.12 Range $11.87 - $22.94

Q3 2021

Shares 700,000 Value ($000) $14,854 Avg Close $20.63 Range $14.51 - $24.47

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2023	678,441	$2,042	$3.64	$2.65 - $4.60
Q4 2022	678,441	$2,924	$6.78	$3.85 - $9.25
Q3 2022	678,441	$5,292	$8.05	$5.49 - $10.74
Q2 2022	678,441	$3,779	$6.55	$4.51 - $9.11
Q1 2022	678,441	$5,835	$11.59	$8.58 - $15.71
Q4 2021	700,000	$10,906	$17.12	$11.87 - $22.94
Q3 2021	700,000	$14,854	$20.63	$14.51 - $24.47