LXEO 8-K: Press release (Ex. 99.1) on results to Sep 30, 2025

Rhea-AI Filing Summary

Lexeo Therapeutics (LXEO) furnished an 8-K announcing it issued a press release with business highlights and financial results for the three and nine months ended September 30, 2025. The press release is provided as Exhibit 99.1 and incorporated by reference. The company states the information under Item 2.02 and Exhibit 99.1 is being furnished and shall not be deemed filed under the Exchange Act. LXEO’s common stock trades on the Nasdaq Global Market.

8-K Event Classification

2 items: 2.02, 9.01

2 items

Item 2.02 Results of Operations and Financial Condition Financial

Disclosure of earnings results, typically an earnings press release or preliminary financials.

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, and exhibit attachments filed with this report.

Understanding 8-K Material Events →

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

FORM 8-K

CURRENT REPORT

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

Date of Report (Date of earliest event reported): November 05, 2025

Lexeo Therapeutics, Inc.

(Exact name of Registrant as Specified in Its Charter)

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

Registrant’s Telephone Number, Including Area Code: 212 547-9879

N/A

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

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:

Title of each class		Trading Symbol(s)		Name of each exchange on which registered
Common Stock, $0.0001 par value per share		LXEO		Nasdaq Global Market

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. ☐

Item 2.02 Results of Operations and Financial Condition.

On November 5, 2025, Lexeo Therapeutics, Inc. (the “Company”) issued a press release announcing business highlights and its financial results for the three and nine months ended September 30, 2025. A copy of this press release is furnished herewith as Exhibit 99.1 to this Current Report and is incorporated herein by reference.

The information in this Item 2.02 and Exhibit 99.1 hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any of the Company’s filings under the Securities Act of 1933, as amended, or the Exchange Act, whether made before or after the date hereof, except as expressly set forth by specific reference in such a filing.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Exhibit Number		Description
99.1		Press Release
104		Cover Page Interactive Data File (embedded within the Inline XBRL document)

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.

			Lexeo Therapeutics, Inc.
Date:	November 5, 2025	By:	/s/ R. Nolan Townsend
			R. Nolan Townsend, Chief Executive Officer

FAQ

What did Lexeo Therapeutics (LXEO) announce in this 8-K?

The company furnished a press release with business highlights and financial results for the three and nine months ended September 30, 2025.

Which period does the LXEO update cover?

The three and nine months ended September 30, 2025.

Where can I find the detailed results for LXEO?

In the press release furnished as Exhibit 99.1 to the 8-K.

Is the information considered filed under the Exchange Act?

No. The company states Item 2.02 and Exhibit 99.1 are furnished and not deemed filed.

What is Lexeo’s trading symbol and exchange?

The common stock trades as LXEO on the Nasdaq Global Market.

What item of the 8-K covers the results disclosure?

Item 2.02, Results of Operations and Financial Condition.

When was the press release issued?

On November 5, 2025.