[6-K] KB Financial Group Inc. Current Report (Foreign Issuer)

Rhea-AI Filing Summary

KB Financial Group Inc. reported interim results of its ongoing share buyback conducted via a trust agreement with Hana Securities. As of October 24, 2025, it had acquired 2,870,000 common shares pursuant to the program, equal to 0.75% of total issued shares, for a total acquisition amount of 324,887 million KRW.

Treasury shares rose from 17,310,128 shares (4.54%) before the program to 20,180,128 shares (5.29%) in total. The filing cites a contracted amount of 660,000 million KRW tied to the trust. The program began on July 24, 2025 and remains ongoing. The total issued share count is 381,462,103, which provides context for the percentages disclosed.

Insights

Equity Capital Markets Analyst

Routine buyback update with clear interim progress.

KB Financial Group details its ongoing trust-based repurchase. As of October 24, 2025, it acquired 2,870,000 shares (0.75% of 381,462,103 issued) at a 324,887 million KRW total acquisition amount. Treasury holdings increased to 20,180,128 shares (5.29%).

The disclosure lists a 660,000 million KRW contracted amount tied to the trust and confirms the program, begun on July 24, 2025, is still in progress. Cash flow reflects share repurchases (issuer cash out).

Impact depends on the pace and completion of purchases under the trust and any subsequent updates on repurchase activity. Subsequent filings may provide further detail on execution.

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 October 2025

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 ☐

Update on the Acquisition of Treasury Shares through a Trust Agreement

On October 28, 2025, KB Financial Group Inc. (“KB Financial Group”) disclosed the interim results for its currently ongoing share buyback program which commenced on July 24, 2025 through a resolution made by its board of directors to enter into a trust agreement with Hana Securities Co., Ltd. (the “Trust Agreement”) to acquire treasury shares within its profits available for dividends, as previously disclosed on July 24, 2025.

The details of KB Financial Group’s treasury shares as of October 24, 2025 are as follows:

		Treasury shares held prior to the acquisition of shares under the Trust Agreement (A)		Type of Shares		Common Shares
				Number of Shares		17,310,128
				Percentage of Total Issued Shares(1)		4.54%
				Total Amount (Unit: millions of KRW)		1,241,538
		Treasury shares acquired pursuant to the Trust Agreement from July 24, 2025 to October 24, 2025 (B)		Type of Shares		Common Shares
				Number of Shares Acquired (2)		2,870,000
				Percentage of Total Issued Shares(1)		0.75%
				Total Acquisition Amount (Unit: millions of KRW) (2)		324,887
				Contracted Amount (Unit: millions of KRW) (3)		660,000
		Total treasury shares held (A+B)		Type of Shares		Common Shares
				Number of Shares		20,180,128
				Percentage of Total Issued Shares(1)		5.29%
				Aggregate Amount (Unit: millions of KRW)		1,901,538

Notes:		(1) Based on the total number of 381,462,103 shares of common stock issued.
		(2) Based on the shares actually acquired as of October 24, 2025 pursuant to the Trust Agreement.
		(3) The total contracted amount is the total number of shares to be acquired pursuant to the Trust Agreement.

The acquisition of treasury shares pursuant to the Trust Agreement is still ongoing.

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: October 28, 2025				By:		/s/ Sang Rok Na
						(Signature)
						Name: Sang Rok Na
						Title: Managing Director and Chief Finance Officer

FAQ

What did KB (KB Financial Group Inc.) announce in its latest 6-K?

It provided an update on its ongoing share buyback via a trust, including 2,870,000 shares acquired and 324,887 million KRW in total acquisition amount as of October 24, 2025.

How many treasury shares does KB hold after the buyback update?

Treasury shares total 20,180,128, representing 5.29% of issued shares as of October 24, 2025.

What portion of KB’s total issued shares were repurchased in this period?

The company acquired 2,870,000 common shares, equal to 0.75% of the 381,462,103 issued shares.

What amounts are disclosed for the KB buyback under the trust?

A total acquisition amount of 324,887 million KRW for shares acquired to date and a contracted amount of 660,000 million KRW tied to the trust.

When did KB’s trust-based repurchase program start and is it ongoing?

It commenced on July 24, 2025 and the acquisition of treasury shares is still ongoing.

What were KB’s treasury shares before this buyback period?

Prior to the trust acquisitions, treasury shares were 17,310,128, or 4.54% of issued shares.