EX-FILING FEES

Calculation of Filing Fee Tables
S-3
Q32 Bio Inc.

Table 1: Newly Registered and Carry Forward Securities	☐Not Applicable

		Security Type	Security Class Title	Fee Calculation or Carry Forward Rule	Amount Registered	Proposed Maximum Offering Price Per Unit	Maximum Aggregate Offering Price	Fee Rate	Amount of Registration Fee	Carry Forward Form Type	Carry Forward File Number	Carry Forward Initial Effective Date	Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward
Newly Registered Securities
		Equity	Common Stock, $0.0001 par value per share	457(o)
		Equity	Preferred Stock, $0.0001 par value per share	457(o)
		Debt	Debt Securities	457(o)
		Other	Warrants	457(o)
		Other	Units	457(o)
Fees to be Paid	1	Unallocated (Universal) Shelf		457(o)			$ 300,000,000.00	0.0001381	$ 41,430.00
Fees Previously Paid
Carry Forward Securities
Carry Forward Securities
			Total Offering Amounts:				$ 300,000,000.00		$ 41,430.00
			Total Fees Previously Paid:						$ 0.00
			Total Fee Offsets:						$ 0.00
			Net Fee Due:						$ 41,430.00

Offering Note

¹	The amount to be registered consists of up to $300,000,000 of an indeterminate amount of common stock, preferred stock, debt securities, warrants and/or units. There is also being registered hereunder such currently indeterminate number of (i) shares of common stock or other securities of the registrant as may be issued upon conversion of, or in exchange for, convertible or exchangeable debt securities and/or preferred stock registered hereby, or (ii) shares of debt securities, common stock, preferred stock or units as may be issued upon exercise of warrants registered hereby, as the case may be, including under any applicable antidilution provisions. Any securities registered hereunder may be sold separately or together with other securities registered hereunder. Pursuant to Rule 416 under the Securities Act of 1933, as amended, or the Securities Act, this registration statement also covers any additional securities that may be offered or issued in connection with any stock split, stock dividend or pursuant to anti-dilution provisions of any of the securities. Separate consideration may or may not be received for securities that are issuable upon conversion, exercise or exchange of other securities. The proposed maximum offering price per security will be determined from time to time by the registrant in connection with the issuance by the registrant of the securities registered hereunder and is not specified as to each class of security pursuant to General Instruction II.D. of Form S-3 under the Securities Act. The registration fee has been calculated in accordance with Rule 457(o) under the Securities Act. Estimated solely for the purpose of calculating the registration fee. The aggregate maximum offering price of all securities issued by the registrant pursuant to this registration statement will not exceed $300,000,000. Warrants may be sold separately or together with any of the securities registered hereby and may be exercisable for shares of common stock, preferred stock, debt securities, or units registered hereby. Because the warrants will provide a right only to purchase such securities offered hereunder, no additional registration fee is required. Each unit will be issued under a unit agreement and will represent an interest in two or more securities registered pursuant to this registration statement, which may or may not be separable from one another. Because the units will provide a right only to purchase such securities offered hereunder, no additional registration fee is required.

Table 2: Fee Offset Claims and Sources	☑Not Applicable

		Registrant or Filer Name	Form or Filing Type	File Number	Initial Filing Date	Filing Date	Fee Offset Claimed	Security Type Associated with Fee Offset Claimed	Security Title Associated with Fee Offset Claimed	Unsold Securities Associated with Fee Offset Claimed	Unsold Aggregate Offering Amount Associated with Fee Offset Claimed	Fee Paid with Fee Offset Source
Rules 457(b) and 0-11(a)(2)
Fee Offset Claims
Fee Offset Sources
Rule 457(p)
Fee Offset Claims
Fee Offset Sources

Table 3: Combined Prospectuses	☑Not Applicable

	Security Type	Security Class Title	Amount of Securities Previously Registered	Maximum Aggregate Offering Price of Securities Previously Registered	Form Type	File Number	Initial Effective Date