Company: SAND
Filing Date: 2025-05-13
Form Type: 6-K/A
Source: 0001628280-25-024864
Chunk: 1

Company: SANDSTORM GOLD LTD
Filing Date: 2025-05-13
Form: 6-K/A
Chunk 1
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 (Performance Share Plan) to this Report on Form 6-K/A of Sandstorm Gold Ltd. are each deemed to be filed and incorporated by reference into this report and are hereby incorporated by reference into the registrant’s Registration Statement on Form F-10 (File No. 333-283100), as amended or supplemented, to the extent not superseded by documents or reports subsequently filed or furnished by us under the Securities Act of 1933 or the Securities Exchange Act of 1934, in each case as amended. EXHIBIT INDEX

| Exhibit |     | Description of Exhibit                 |
| 99.1    |     | Amended and Restated Stock Option Plan |
| 99.2    |     | Restricted Share Plan                  |
| 99.3    |     | Performance Share Plan                 |

SIGNATURE 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, thereunto duly authorized.

| Date: May 12, 2025 |     | SANDSTORM GOLD LTD. 
 By:                 |     | /s/ Erfan Kazemi               |
|:-------------------|:----|:--------------------|:----|:-------------------------------|
|                    |     |                     |     | Name: Erfan Kazemi             |
|                    |     |                     |     | Title: Chief Financial Officer |