ATRECA INC

CUSIP: 04965G109 Class: COMMON

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

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

Q1 2022
Shares 358,780 Value ($000) $1,137 Avg Close — Range —
Q2 2021
Shares 2,426,685 Value ($000) $20,675 Avg Close — Range —
Q1 2021
Shares 2,426,685 Value ($000) $37,201 Avg Close — Range —
Q4 2020
Shares 2,426,685 Value ($000) $39,191 Avg Close — Range —
Q3 2020
Shares 2,426,685 Value ($000) $33,901 Avg Close — Range —
Q2 2020
Shares 1,489,185 Value ($000) $31,690 Avg Close — Range —
Q1 2020
Shares 1,106,180 Value ($000) $18,307 Avg Close — Range —
Q4 2019
Shares 1,481,411 Value ($000) $22,917 Avg Close — Range —
Q3 2019
Shares 1,481,411 Value ($000) $18,132 Avg Close — Range —
Q2 2019
Shares 1,486,979 Value ($000) $28,015 Avg Close — Range —