Q32 Bio Inc. — Director's Dealing 2024

Mar 27, 2024

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: Q32 Bio Inc. (QTTB)
CIK: 0001661998
Period of Report: 2024-03-25

Reporting Person: Atlas Venture Fund X, L.P. (N/A)
Reporting Person: ATLAS VENTURE ASSOCIATES X, L.P. (N/A)
Reporting Person: Atlas Venture Associates X, LLC (N/A)
Reporting Person: Atlas Venture Opportunity Fund I, L.P. (N/A)
Reporting Person: Atlas Venture Associates Opportunity I, L.P. (N/A)
Reporting Person: Atlas Venture Associates Opportunity I, LLC (N/A)
Reporting Person: Atlas Venture Opportunity Fund II, L.P. (N/A)
Reporting Person: Atlas Venture Associates Opportunity II, LP (N/A)
Reporting Person: Atlas Venture Associates Opportunity II, LLC (N/A)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	864261	Direct
Common Stock	503296	Indirect
Common Stock	724549	Indirect

Footnotes

F1: Shares held by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims beneficial ownership of these shares except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that it is the beneficial owner of such shares for purposes of Section 16 of the Exchange Act or for any other purpose.

F2: Shares held by Atlas Venture Opportunity Fund I, L.P. ("AVOF I"). Atlas Venture Associates Opportunity I, L.P. ("AVAO LP") is the general partner of AVOF I. Atlas Venture Associates Opportunity I, LLC ("AVAO LLC") is the general partner of AVAO LP. Each of AVAO LP and AVAO LLC disclaims beneficial ownership of these shares except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that it is the beneficial owner of such shares for purposes of Section 16 of the Exchange Act or for any other purpose.

F3: The shares are owned directly by Atlas Venture Opportunity Fund II, L.P. ("AVOF II"). Atlas Venture Associates Opportunity II, L.P. ("AVAO II LP") is the general partner of AVOF II. Atlas Venture Associates Opportunity II, LLC ("AVAO II LLC") is the general partner of AVAO II LP. Each of AVAO II LP and AVAO II LLC disclaims beneficial ownership of these shares except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that it is the beneficial owner of such shares for purposes of Section 16 of the Exchange Act or for any other purpose.