Q32 Bio (QTTB) Proxy filing summary

Voting matters and shareholder proposals

• Election of Kathleen LaPorte, Jodie Morrison, and Arthur Tzianabos, Ph.D. as Class II directors to serve until the 2029 Annual Meeting or until a successor is elected or qualified.

• Ratification of Ernst & Young LLP as the independent registered public accounting firm for the fiscal year ending December 31, 2026.

• Advisory vote to approve the compensation of named executive officers.

• Provision to transact any other business properly brought before the Annual Meeting or any adjournment.

Board of directors and corporate governance

• Board recommends voting in favor of all director nominees and proposals.

• Directors up for election are nominated for a term ending at the 2029 Annual Meeting.

Executive compensation and say-on-pay

• Advisory, non-binding vote on the compensation of named executive officers is included as a proposal.