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

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))

Item 8.01 Other Events.

On October 15, 2013, Berkshire Hathaway Finance Corporation (“BHFC”) issued (i) $400,000,000 aggregate principal amount of its 0.950% Senior Notes due 2016 (the “0.950% Notes”) and (ii) $550,000,000 aggregate principal amount of its 2.900% Senior Notes due 2020, (the “2.900% Notes,” and together with the 0.950% Notes collectively, the “Notes”), under a registration statement on Form S-3 under the Securities Act of 1933, as amended (the “Securities Act”), filed with the Securities and Exchange Commission (the “Commission”) on January 28, 2013 (Registration No. 333-186257) (the “Registration Statement”). The Notes, which will be fully and unconditionally guaranteed by Berkshire Hathaway Inc. (“Berkshire”), were sold pursuant to an underwriting agreement (the “Underwriting Agreement”) entered into on October 8, 2013, by and between (a) BHFC and Berkshire and (b) Goldman, Sachs & Co., J.P. Morgan Securities LLC, Merrill Lynch, Pierce, Fenner & Smith Incorporated and Wells Fargo Securities, LLC (collectively, the “Underwriters”). The Notes are issued under an Indenture, dated as of February 1, 2010, by and among BHFC, as issuer, Berkshire, as guarantor, and The Bank of New York Mellon Trust Company, N.A., as trustee (the “Indenture”), and officers’ certificates dated as of August 15, 2013 with respect to the 0.950% Notes (the “0.950% Notes Officers’ Certificate”) and October 15, 2013 with respect to the 2.900% Notes (the “2.900% Notes Officers’ Certificate,” and together with the 0.950% Notes Officers’ Certificate collectively, the “Officers’ Certificates”).

The relevant terms of the Notes and the Indenture are further described under the caption “Description of the Notes and Guarantee” in the prospectus supplement, dated October 8, 2013, filed with the Commission by Berkshire on October 9, 2013, pursuant to Rule 424(b)(2) under the Securities Act and in the section entitled “Description of the Debt Securities” in the base prospectus, dated January 28, 2013, included in the Registration Statement, which descriptions are incorporated herein by reference.

A copy of the Indenture is set forth in Exhibit 4.1 of Berkshire’s registration statement on Form S-3 under the Securities Act filed with the Commission on February 1, 2010 (Registration No. 333-164611) and is incorporated herein by reference. A copy of the 0.950% Notes Officers’ Certificate (including the form of the 0.950% Notes) is set forth in Exhibit 4.2 of Berkshire’s current report on Form 8-K filed with the Commission on August 15, 2013 and is incorporated herein by reference. A copy of the 2.900% Notes Officers’ Certificate (including the form of the 2.900% Notes) is attached hereto as Exhibit 4.3 and is incorporated herein by reference. The descriptions of the Indenture, the Officers’ Certificates and the Notes in this report are summaries and are qualified in their entirety by the terms of the Indenture, the Officers’ Certificates and the Notes, respectively.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

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.

[8-K Signature Page]

Exhibit Index