Longitude Capital Partners IV, LLC - Nov 7, 2023 Form 4 Insider Report for Lexeo Therapeutics, Inc. (LXEO)

Role: 10%+ Owner
Signature: Longitude Capital Partners IV, LLC By: /s/ Cristiana Blauth Oliveira , Authorized Signatory
Stock symbol: LXEO
Transactions as of: Nov 7, 2023
Transactions value $: $4,999,995
Form type: 4
Date filed: 11/9/2023, 08:32 PM
Previous filing: Nov 2, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	LXEO	Common Stock	Conversion of derivative security		+1.79M			1.79M	Nov 7, 2023	By Longitude Venture Partners IV, L.P.	F1, F2
transaction	LXEO	Common Stock	Conversion of derivative security		+319K	+17.79%		2.11M	Nov 7, 2023	By Longitude Venture Partners IV, L.P.	F2, F3
transaction	LXEO	Common Stock	Purchase	$5M	+455K	+21.52%	$11.00^*	2.57M	Nov 7, 2023	By Longitude Venture Partners IV, L.P.	F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	LXEO	Series A convertible preferred stock	Conversion of derivative security		-19M	-100%		0	Nov 7, 2023	Common Stock	1.79M		By Longitude Venture Partners IV, L.P.	F1, F2
transaction	LXEO	Series B convertible preferred stock	Conversion of derivative security		-2.91M	-100%		0	Nov 7, 2023	Common Stock	319K		By Longitude Venture Partners IV, L.P.	F2, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Upon the closing of the Issuer's initial public offering, each share of Series A convertible preferred stock automatically converted into shares of the Issuer's common stock on a one-for-10.594230 basis. The shares had no expiration date.
F2	These shares are held by Longitude Venture Partners IV, L.P ("LVP IV"). Longitude Capital Partners IV, LLC ("LCP IV") is the general partner of LVP IV and may be deemed to have voting and dispositive power over the shares held by LVP IV. Mr. Enright and Ms. Tammenoms Bakker are managing members of LCP IV and may be deemed to share voting and dispositive power with respect to the shares held by LVP IV. Each of LCP IV, Mr. Enright and Ms. Tammenoms Bakker disclaims beneficial ownership of such shares and this report shall not be deemed an admission that any of them is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.
F3	Upon the closing of the Issuer's initial public offering, each share of Series B convertible preferred stock automatically converted into shares of the Issuer's common stock on a one-for-9.106601 basis, which reflects an anti-dilution adjustment to the conversion ratio pursuant to a provision of the Series B convertible preferred stock based on the pricing of the initial public offering (as described in the Reporting Person's Form 3). The shares had no expiration date.