KB Financial Group (KB) updates National Pension Service ownership details

Rhea-AI Filing Summary

KB Financial Group Inc. reported an update on the ownership of its largest shareholder, the Korean National Pension Service. The filing states that the National Pension Service held 33,505,649 shares of common stock, representing 8.99% of total shares as of March 31, 2026, and 33,460,006 shares, representing 8.97% of 372,850,455 total shares, based on the shareholder registry as of May 8, 2026. This report simply updates investors on the largest shareholder’s ownership stake as recorded in the company’s shareholder registry.

Key Figures

Largest shareholder stake (March 31, 2026): 33,505,649 shares (8.99%) Largest shareholder stake (May 8, 2026): 33,460,006 shares (8.97%) Total shares: 372,850,455 shares

3 metrics

Largest shareholder stake (March 31, 2026) 33,505,649 shares (8.99%) Korean National Pension Service holdings as of March 31, 2026

Largest shareholder stake (May 8, 2026) 33,460,006 shares (8.97%) Korean National Pension Service holdings based on registry as of May 8, 2026

Total shares 372,850,455 shares Total KB Financial Group shares based on shareholder registry as of May 8, 2026

Key Terms

Form 6-K, foreign private issuer, largest shareholder, shareholder registry

4 terms

Form 6-K regulatory

"Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16"

A Form 6-K is a report that companies listed in certain countries file to provide important updates, such as financial results, corporate changes, or other significant information, to regulators and investors. It functions like an official company update or news release, helping investors stay informed about developments that could affect their investment decisions.

foreign private issuer regulatory

"REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16"

A foreign private issuer is a company organized outside the United States that meets tests showing it is primarily foreign-controlled and therefore qualifies for a different set of U.S. reporting rules. For investors, that means the company files less frequent or differently formatted disclosures with U.S. regulators and may follow home-country accounting and governance practices, so buying its stock is like dining at a well-reviewed restaurant that follows its home kitchen’s rules instead of the local menu — you get access but should check what standards apply.

largest shareholder financial

"Changes in the Number of Shares Owned by the Largest Shareholder"

shareholder registry financial

"based on the shareholder registry of KB Financial Group as of May 8, 2026"

Form 6-K: How Foreign Companies Report to the SEC →

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of May 2026

Commission File Number: 000-53445

KB Financial Group Inc.

(Translation of registrant’s name into English)

26, Gukjegeumyung-ro 8-gil, Yeongdeungpo-gu, Seoul 07331, Korea

(Address of principal executive office)

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 ☐

Changes in the Number of Shares Owned by the Largest Shareholder of

KB Financial Group Inc.

On May 18, 2026, KB Financial Group Inc. (“KB Financial Group”) reported that the number of shares owned by its largest shareholder, the Korean National Pension Service, had increased from 33,505,649 shares of common stock, representing 8.99% of the total shares as of March 31, 2026, to 33,460,006 shares of common stock, representing 8.97% of 372,850,455 total shares based on the shareholder registry of KB Financial Group as of May 8, 2026.

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.

						KB Financial Group Inc.
						(Registrant)
Date: May 18, 2026				By:		/s/ Sang Rok Na
						(Signature)
						Name: Sang Rok Na
						Title: Senior Managing Director and Chief Financial Officer

FAQ

What change in ownership did KB (KB Financial Group Inc.) disclose in this 6-K?

KB Financial Group reported an updated stake for its largest shareholder, the Korean National Pension Service. It disclosed share counts and ownership percentages as of March 31, 2026 and May 8, 2026, based on the company’s shareholder registry.

Who is the largest shareholder of KB Financial Group Inc. (KB)?

The largest shareholder of KB Financial Group Inc. is the Korean National Pension Service. The filing identifies it as holding the largest position in KB’s common stock, with detailed share counts and ownership percentages referenced to specific registry dates.

How many KB Financial Group shares did the Korean National Pension Service hold as of March 31, 2026?

As of March 31, 2026, the Korean National Pension Service held 33,505,649 KB Financial Group common shares. This position represented 8.99% of the company’s total shares on that date, according to the filing’s ownership disclosure.

What was the Korean National Pension Service’s ownership percentage in KB as of May 8, 2026?

As of May 8, 2026, the Korean National Pension Service’s stake was 8.97% of KB Financial Group’s 372,850,455 total shares. The filing ties this percentage directly to the company’s shareholder registry on that date.

How many total KB Financial Group shares were outstanding as of May 8, 2026?

The filing states there were 372,850,455 total KB Financial Group shares based on the shareholder registry as of May 8, 2026. This figure is used to calculate the largest shareholder’s ownership percentage on that date.