Company: GFS
Filing Date: 2025-08-05
Form Type: 6-K
Source: 0001709048-25-000057
Chunk: 0

Company: GLOBALFOUNDRIES Inc.
Filing Date: 2025-08-05
Form: 6-K
Chunk 0
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<div align='center'>UNITED STATES
SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549</div>

#### FORM 6-K
<div align='center'>REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of August 2025

Commission File Number 001-40974</div>

#### GLOBALFOUNDRIES Inc.

#### 400 Stonebreak Road Extension

#### Malta, NY 12020
Indicate by check mark whether the Registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ☒ Form 40-F ☐

Attached hereto is the following exhibit.

### 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, thereunto duly authorized.

| Date: August 5, 2025 |     | GLOBALFOUNDRIES Inc. 
 By:                  |     | /s/ John Hollister      |
|:---------------------|:----|:---------------------|:----|:------------------------|
|                      |     | Name:                |     | John Hollister          |
|                      |     | Title:               |     | Chief Financial Officer |