Company: INGVF
Filing Date: 2025-03-25
Form Type: 6-K
Source: 0001193125-25-062398
Chunk: 0

Company: ING GROEP NV
Filing Date: 2025-03-25
Form: 6-K
Chunk 0
---
### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION
Washington, DC 20549

FORM 6-K

Report of Foreign Private Issuer

Pursuant to Rule 13a-16or 15d-16

of the Securities Exchange Act of 1934

For March 25, 2025

Commission File Number 1-14642

ING Groep N.V.

Bijlmerdreef 106

1102 CT Amsterdam

The Netherlands

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
☐

THIS REPORT ON FORM 6-K SHALL BE DEEMED TO BE INCORPORATED BY REFERENCE IN THE REGISTRATION
STATEMENT ON FORM F-3 (FILE NO. 333-266516) OF ING GROEP N.V. AND TO BE A PART THEREOF FROM THE DATE ON WHICH THIS REPORT IS FURNISHED, TO THE EXTENT NOT SUPERSEDED BY
DOCUMENTS OR REPORTS SUBSEQUENTLY FILED OR FURNISHED.

This Report contains the following:

| Exhibit 
 No.     
 1.1     
 4.1     |     | Underwriting Agreement among ING Groep N.V. and BMO Capital Markets Corp., Citigroup Global Markets Inc., HSBC Securities (USA) Inc., ING Financial Markets LLC, Morgan Stanley                                                                                                             
 & Co. LLC, TD Securities (USA) LLC and Wells Fargo Securities, LLC, as representatives of the several underwriters named therein, dated March 18, 2025.                                                                                                                                     
 Eighth Supplemental Indenture between ING Groep N.V. and The Bank of New York Mellon, London Branch, as trustee, dated as of March 25, 2025, in respect of $750,000,000 4.858% Callable Fixed-to-Floating Rate Senior Notes due 2029, $1,000,000,000 5.066% Callable Fixed-to-Floating Rate 
 Senior Notes due 2031, $1,000,000,000 5.525% Callable Fixed-to-Floating Rate Senior Notes due 2036 and $750,000,000 Callable Floating Rate Senior Notes due 2029.                                                                                                                           |
|:--------|:----|:--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 4.2     |     | The form