# EDGAR Filing Document

**Accession Number:** 0001907108
**File Stem:** 0001193125-26-288703
**Filing Date:** 2026-6
**Character Count:** 5507
**Document Hash:** 0e7ea01bc438bafe12b5ccc890ac68c5
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-288703.hdr.sgml**: 20260629

**ACCESSION NUMBER**: 0001193125-26-288703

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 9

**CONFORMED PERIOD OF REPORT**: 20260625

**ITEM INFORMATION**: Submission of Matters to a Vote of Security Holders

**FILED AS OF DATE**: 20260629

**DATE AS OF CHANGE**: 20260629

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Lexeo Therapeutics, Inc.
- **CENTRAL INDEX KEY:** 0001907108
- **STANDARD INDUSTRIAL CLASSIFICATION:** BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 854012572
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-41855
- **FILM NUMBER:** 261136792

**BUSINESS ADDRESS:**
- **STREET 1:** 345 PARK AVENUE SOUTH
- **STREET 2:** FLOOR 6
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10010
- **BUSINESS PHONE:** (212) 547-9879

**MAIL ADDRESS:**
- **STREET 1:** 345 PARK AVENUE SOUTH
- **STREET 2:** FLOOR 6
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10010

?xml version='1.0' encoding='ASCII'? 8-K

**UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549**

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## FORM 8-K

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**CURRENT REPORT**

**Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934**

**Date of Report (Date of earliest event reported):** June 25, 2026<br>

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Lexeo Therapeutics, Inc.

**(Exact name of Registrant as Specified in Its Charter)**

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| | | |
|:---|:---|:---|
| Delaware | 001-41855 | 85-4012572 |
| **(State or Other Jurisdiction<br>of Incorporation)** | **(Commission File Number)** | **(IRS Employer<br>Identification No.)** |
| 345 Park Avenue South, Floor 6 |  |  |
| New York**,** New York |  | 10010 |
| **(Address of Principal Executive Offices)** |  | **(Zip Code)** |

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**Registrant's Telephone Number, Including Area Code:** 212 547-9879<br>

N/A<br>

**(Former Name or Former Address, if Changed Since Last Report)**

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Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

**Securities registered pursuant to Section 12(b) of the Act:**

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| | | |
|:---|:---|:---|
| **<br>Title of each class** | **Trading<br>Symbol(s)** | **<br>Name of each exchange on which registered** |
| Common Stock, $0.0001 par value per share | LXEO | Nasdaq Global Market |

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Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

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## Item 5.07 Submission of Matters to a Vote of Security Holders.
On June 25, 2026, Lexeo Therapeutics, Inc. (the "Company") held its virtual 2026 Annual Meeting of Stockholders (the "Annual Meeting") exclusively online via live webcast. The stockholders voted on the following proposals at the Annual Meeting:

*Proposal 1. Election of Class III Directors*

The Company's stockholders elected the persons listed below as Class III Directors, to serve until the Company's 2029 Annual Meeting of Stockholders and until their respective successors are elected and qualified, or until their earlier death, resignation or removal. The final voting results are as follows:

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| | | | |
|:---|:---|:---|:---|
|  | &nbsp;&nbsp;FOR | &nbsp;&nbsp;WITHHELD | &nbsp;&nbsp;BROKER NON-VOTE |
| &nbsp;&nbsp;R. Nolan Townsend | &nbsp;&nbsp;64731479 | &nbsp;&nbsp;895808 | &nbsp;&nbsp;9955777 |
| &nbsp;&nbsp;Brenda Cooperstone, M.D. | &nbsp;&nbsp;48792570 | &nbsp;&nbsp;16834717 | &nbsp;&nbsp;9955777 |
| &nbsp;&nbsp;Paula HJ Cholmondeley | &nbsp;&nbsp;64652712 | &nbsp;&nbsp;974575 | &nbsp;&nbsp;9955777 |

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*Proposal 2. Ratification of Appointment of Independent Registered Public Accounting Firm*

The Company's stockholders ratified the selection by the Audit Committee of the Company's Board of Directors of KPMG LLP as the Company's independent registered public accounting firm for the fiscal year ending December 31, 2026. The final voting results are as follows:

FOR AGAINST ABSTAIN <br> 75,497,386 55,579 30,099

For more information about the foregoing proposals, see the Proxy Statements filed with the Securities and Exchange Commission on April 30, 2026.

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**SIGNATURES**

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

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| | | | |
|:---|:---|:---|:---|
|  |  |  | **Lexeo Therapeutics, Inc.** |
| Date: | June 29, 2026 | By:  | /s/ R. Nolan Townsend |
|  |  |  | R. Nolan Townsend, Chief Executive Officer  |

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