Company: BRK-A
Filing Date: 2025-01-31
Form Type: S-3ASR
Source: 0001193125-25-018070
Chunk: 1

Company: BERKSHIRE HATHAWAY INC
Filing Date: 2025-01-31
Form: S-3ASR
Chunk 1
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 registration statement for the same offering. ☐ If this Form is a registration statement pursuant to General Instruction I.D. or a post-effective amendment thereto that shall become effective upon filing with the Commission pursuant to Rule 462(e) under the Securities Act, check the following box: ☒ If this Form is a post-effective amendment to a registration statement filed pursuant to General Instruction I.D. filed to register additional securities or additional classes of securities pursuant to Rule 413(b) under the Securities Act, check the following box: ☐ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-acceleratedfiler, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer”, “smaller reporting company” and “emerging growth company” in Rule 12b-2of the Exchange Act. (Check one):

| Large accelerated filer |     | ☒ |     | Accelerated filer         |     | ☐ |
| Non-accelerated filer   |     | ☐ |     | Smaller reporting company |     | ☐ |
|                         |     |   |     | 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 7(a)(2)(B) of Securities Act. ☐

EXPLANATORY NOTE This Registration Statement contains:

| • |     | A base prospectus to be used by Berkshire Hathaway Inc. in connection with offerings of its debt securities. |

| • |     | A base prospectus to be used by Berkshire Hathaway Finance Corporation in connection with offerings of its debt 
 securities and the related guarantees of Berkshire Hathaway Inc.                                                |

Berkshire Hathaway Inc.

Debt Securities

We may, from
time to time, offer to sell debt securities. We may sell these debt securities in one or more offerings at prices and on other terms to be determined at the time of offering.

This prospectus describes some of the general terms and conditions that apply to these debt securities. We will provide the specific terms of
the debt securities to be offered in one or more supplements to this prospectus. You should read this prospectus and the applicable prospectus supplement carefully before you make an investment decision.

Investing in our securities involves risks.