Company: BRK-A
Filing Date: 2025-06-23
Form Type: 11-K
Source: 0001193125-25-144506
Chunk: 15

Company: BERKSHIRE HATHAWAY INC
Filing Date: 2025-06-23
Form: 11-K
Chunk 15
---
|:----|:------------------------------------------|:----|:------------------------------------------------------------------------------------------|:----|:--|:----|:--------------|----------:|
| *   |     | BNSF 401(k) Plans Master Trust            |     | Investment in Master Trust                                                                |     | $ |     |               | 2,514,271 |
| *   |     | Notes receivable from participants        |     | Interest rates of 4.25% - 10.00% with maturities from less than one year to fifteen years |     |   |     |               |    29,695 |
|     |     | Total assets held for investment purposes |     |                                                                                           |     | $ |     |               | 2,543,966 |

* Represents a party-in-interest,as defined by ERISA. Column (d) is excluded from the presentation, as all investing activity is participant-directed; therefore, no disclosure of cost information is required. 14

BURLINGTON NORTHERN SANTA FE INVESTMENT AND RETIREMENT PLAN SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the trustees (or other persons who administer the employee benefit plan) have duly caused this annual report to be signed on its behalf by the undersigned hereunto duly authorized.

| Burlington Northern Santa Fe Investment and Retirement Plan |     |                                                         |
| By: /s/ Judy K. Carter                                      |     |                                                         |
|                                                             |     | Judy K. Carter                                          |
|                                                             |     | Senior Vice President and Chief Human Resources Officer |

Date:June 20, 2025 15

BURLINGTON NORTHERN SANTA FE INVESTMENT AND RETIREMENT PLAN EXHIBIT INDEX

| Exhibit No. |     |                             |
| 23.1        |     | Consent of Whitley Penn LLP |

16