ATLAS VENTURE ASSOCIATES OPPORTUNITY II, LLC

PrivateCIK: 1935810

Location

CAMBRIDGE, MA

Name & Role	Position	Tenure	Holdings
DYNE THERAPEUTICS, INC.	—	Since Dec 2022	—
DISC MEDICINE, INC.	—	Since Dec 2022	—
KORRO BIO, INC.	—	Since Nov 2023	—
Q32 BIO INC.	—	Since Mar 2024	—
SIONNA THERAPEUTICS, INC.	—	Since Feb 2025	—

DYNE THERAPEUTICS, INC.

Position—

TenureSince Dec 2022

Holdings—

DISC MEDICINE, INC.

Position—

TenureSince Dec 2022

Holdings—

KORRO BIO, INC.

Position—

TenureSince Nov 2023

Holdings—

Position—

TenureSince Mar 2024

Holdings—

SIONNA THERAPEUTICS, INC.

Position—

TenureSince Feb 2025

Holdings—