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): January 12, 2026

Elanco Animal Health Incorporated

(Exact name of registrant as specified in its charter)

Indiana 001-38661 82-5497352

(State or other jurisdiction
of incorporation)

(Commission
File Number)

(I.R.S. Employer

Identification No.)

450 Elanco Circle

Indianapolis, Indiana

(Address of principal executive offices)

46222

(Zip Code)

Registrant’s telephone number, including area code: (877) 352-6261

Not Applicable

(Former Name or 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 (see General Instruction A.2. below):

¨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, no par value ELAN New York Stock Exchange

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 7.01Regulation FD.

On January 13, 2026, Elanco Animal Health Incorporated (the “Company”) will present at the 44th Annual J.P. Morgan Healthcare Conference (the “JPM Conference”). A copy of the Company’s JPM Conference presentation is furnished as Exhibit 99.1.

The information in this Item 7.01, including Exhibit 99.1 attached hereto, is being furnished and shall not be deemed “filed” for the 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 and shall not be incorporated by reference into any registration statement or other document pursuant to the Securities Act of 1933, as amended, or the Exchange Act, except as otherwise expressly stated in such filing.

Item 9.01Financial Statements and Exhibits.

(d) Exhibits

Exhibit No. Description
99.1 Investor Presentation of Elanco Animal Health Incorporated at the JPM Conference.
104.1 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.

Elanco Animal Health Incorporated
Date: January 12, 2026 By: /s/ Robert M. VanHimbergen
Name: Robert M. VanHimbergen
Title: Executive Vice President, Chief Financial Officer