Q32 Bio Inc. — Director's Dealing 2026

Feb 27, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Q32 Bio Inc. (QTTB)
CIK: 0001661998
Period of Report: 2026-02-25

Reporting Person: Violette Shelia M. (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-25	Common Stock	S	2815	$4.5144	Disposed	55569	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	36277	Indirect

Footnotes

F1: Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

F2: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $4.35 to $4.69. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, on request, full information regarding the number of shares sold at each separate price within the range set forth above.

F3: Shares held by Violette Holdings LLC ("Violette Holdings"). The Reporting Person is a manager of Violette Holdings and disclaims beneficial ownership of these shares except to the extent of her pecuniary interest therein, if any, and this report shall not be deemed an admission that she is the beneficial owner of such shares for purposes of Section 16 of the Exchange Act or for any other purpose.