EX-FILING FEES

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Calculation of Filing Fee Tables
S-3
Lexeo Therapeutics, 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
Fees to be Paid	1	Equity	Common Stock, par value $0.0001 per share	457(a)	1,250,015	$ 8.59	$ 10,737,628.85	0.0001381	$ 1,482.87
Fees Previously Paid
Carry Forward Securities
Carry Forward Securities
			Total Offering Amounts:				$ 10,737,628.85		$ 1,482.87
			Total Fees Previously Paid:						$ 0.00
			Total Fee Offsets:						$ 0.00
			Net Fee Due:						$ 1,482.87

Offering Note

¹	(1) The shares of common stock will be offered for resale by the selling stockholder pursuant to the prospectus contained herein. Pursuant to Rule 416(a) of the Securities Act of 1933, as amended, or the Securities Act, this Registration Statement shall also cover any additional shares of the Registrant's common stock, or the Common Stock, that become issuable as a result of any stock dividend, stock split, recapitalization, or other similar transaction effected without the receipt of consideration that increases the number of the Registrant's outstanding shares of Common Stock. (2) Consists of 1,250,015 shares of Common Stock issuable upon the exercise of outstanding Pre-Funded Warrants (as defined in the Registration Statement) to purchase shares of Common Stock held by the Selling Stockholder. (3) Estimated solely for the purpose of computing the amount of the registration fee in accordance with Rule 457(c) under the Securities Act, based on the average of the high and low prices of the Common Stock as reported on the Nasdaq Global Market on November 4, 2025 which was approximately $8.59 per share.

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	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Fee Offset Sources	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Rule 457(p)
Fee Offset Claims	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Fee Offset Sources	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A

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
N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A