KRW 600B buyback: KB Financial (NYSE: KB) to cancel 3.8M shares

Rhea-AI Filing Summary

KB Financial Group Inc. approved the cancellation of 3,811,944 common shares that it plans to acquire as treasury stock, with an estimated amount of KRW 600,000,000,000. The company intends to buy these shares on the stock exchange between April 24, 2026 and July 20, 2026 through KB Securities Co., Ltd.

The cancellation will reduce the total number of issued shares from 372,850,455 common shares but will not reduce paid-in capital, because it is being carried out within profits available for dividends under Article 343-1 of the Korean Commercial Code. The specific cancellation date will be determined later.

Insights

Capital structure analyst

KB Financial schedules KRW 600B share buyback for cancellation, modestly shrinking its share base.

KB Financial Group has authorized cancellation of 3,811,944 common shares tied to an estimated KRW 600,000,000,000 program. Shares will be repurchased on the stock exchange via KB Securities between April 24, 2026 and July 20, 2026 before being cancelled.

The cancellation uses profits available for dividends under Article 343-1 of the Korean Commercial Code, so paid-in capital remains unchanged while issued shares decline from 372,850,455 common shares. This is a capital return mechanism that can increase per-share metrics, though actual impact depends on execution price and timing.

Key Figures

Shares to be cancelled: 3,811,944 shares Estimated cancellation amount: KRW 600,000,000,000 Total issued common shares: 372,850,455 shares +4 more

7 metrics

Shares to be cancelled 3,811,944 shares Common shares approved for cancellation

Estimated cancellation amount KRW 600,000,000,000 Amount determined by board resolution

Total issued common shares 372,850,455 shares Total common shares issued before cancellation

Par value per share KRW 5,000 Par value of KB Financial common stock

Treasury share acquisition period start April 24, 2026 Start of buyback window for cancellation

Treasury share acquisition period end July 20, 2026 End of buyback window for cancellation

Board resolution date April 23, 2026 Date directors approved share cancellation

Key Terms

treasury shares, paid-in capital, Korean Commercial Code, profits available for dividends, +1 more

5 terms

treasury shares financial

"cancel certain of its shares of common stock, which KB Financial Group plans to acquire as treasury shares prior to such cancellation"

Treasury shares are a company’s own stock that it has repurchased and keeps on its books instead of canceling or leaving in the hands of outside investors. Think of them like coupons a business puts back in a drawer: they don’t vote or receive dividends while held, but they can be reissued later for employee pay or fundraising. For investors this matters because buybacks change the number of shares that count toward earnings and ownership, can boost per‑share metrics, and use corporate cash that might otherwise go to growth or dividends.

paid-in capital financial

"although the total number of issued shares will decrease, there will be no reduction in the paid-in capital of KB Financial Group"

Paid-in capital is the cash and other assets shareholders have given a company in exchange for its stock, including amounts paid above the stock’s nominal value. Investors care because it shows how much funding came directly from owners rather than from borrowing or profits, affecting the company’s financial cushion, ownership dilution and how resilient it may be in tough times — like the extra money people pay above a ticket price to support a project they believe in.

Korean Commercial Code regulatory

"Legal basis for the cancellation of treasury shares: Article 343-1 of the Korean Commercial Code."

profits available for dividends financial

"treasury shares expected to be acquired within the limits of profits available for dividends"

Korea Fair Trade Commission regulatory

"Obligation to Report to the Korea Fair Trade Commission | | Not applicable"

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 April 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 ☐

Resolution for the Cancellation of Treasury Shares

On April 23, 2026, the board of directors of KB Financial Group Inc. (“KB Financial Group”) resolved to cancel certain of its shares of common stock, which KB Financial Group plans to acquire as treasury shares prior to such cancellation pursuant to the announcement on Form 6-K dated April 23, 2026. The details are as follows:

Type and Number of Shares to be Cancelled		Common Shares		3,811,944 shares
		Other Shares		—
Total Number of Shares Issued		Common Shares		372,850,455 shares
		Other Shares		—
Par Value per Share				KRW 5,000
Estimated Amount of Shares to be Cancelled				KRW 600,000,000,000
Scheduled Period of Acquisition of Treasury Shares for Cancellation		From		April 24, 2026
		To		July 20, 2026
Method of Acquisition of Shares to be Cancelled				Purchase on the stock exchange
Scheduled Date of Cancellation				To be determined
Brokerage Company Appointed for the Share Acquisitions				KB Securities Co., Ltd.
Date of Resolution by the Board of Directors				April 23, 2026
Obligation to Report to the Korea Fair Trade Commission				Not applicable
Other Material Information for an Investment Decision				-   Legal basis for the cancellation of treasury shares: Article 343-1 of the Korean Commercial Code. -   The cancellation of these shares constitutes the cancellation of treasury shares expected to be acquired within the limits of profits available for dividends, and as such, although the total number of issued shares will decrease, there will be no reduction in the paid-in capital of KB Financial Group. -   The “Estimated Amount of Shares to be Cancelled” above is the cancellation amount determined through a resolution of the board of directors on even date herewith.

-   The “Type and Number of Shares to be Cancelled” above is calculated based on the closing price of the common shares of KB Financial Group on the Korea Exchange as of April 22, 2026 (one day prior to the date of the resolution of the board of directors), which was KRW 157,400. The actual number and amount of shares to be cancelled are subject to change depending on fluctuations in share price.

-   The starting date for the “Scheduled Period of Acquisition of Treasury Shares for Cancellation” above represents the day after the resolution of the board of directors, and may not be the actual date the acquisitions begin.

-   KB Financial Group plans to cancel all of the treasury shares following the completion of the acquisition of the treasury shares. For detailed information regarding the acquisition of the treasury shares, please refer to the Form 6-K titled “Resolution for the Acquisition of Treasury Shares” furnished by KB Financial Group on April 23, 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: April 23, 2026				By:		/s/ Sang Rok Na
				(Signature)
				Name: Sang Rok Na
				Title: Senior Managing Director and Chief Financial Officer

FAQ

What share cancellation did KB Financial Group (KB) approve in April 2026?

KB Financial Group approved cancelling 3,811,944 common shares, linked to an estimated KRW 600,000,000,000 program. The shares will first be repurchased as treasury stock on the market, then cancelled, reducing the total number of issued shares without cutting paid-in capital.

How large is KB Financial Group’s planned share cancellation versus its total shares?

KB Financial plans to cancel 3,811,944 common shares out of 372,850,455 issued common shares. This reduces the share count while leaving paid-in capital unchanged, as the cancellation is funded from profits available for dividends under Korean law.

When will KB Financial Group (KB) buy shares for cancellation?

KB Financial Group expects to acquire shares for cancellation from April 24, 2026 to July 20, 2026. Purchases will be made on the stock exchange through KB Securities Co., Ltd. before the shares are formally cancelled at a later, yet-to-be-determined date.

Will KB Financial Group’s paid-in capital change after cancelling these shares?

Paid-in capital will remain the same after cancelling these shares. The company states the cancellation is of treasury shares acquired within profits available for dividends, so only the number of issued shares decreases while paid-in capital at KB Financial Group stays unchanged.

What is the estimated monetary amount of KB Financial Group’s share cancellation?

The board set an estimated amount of KRW 600,000,000,000 for the shares to be cancelled. This figure reflects the cancellation amount approved on the board resolution date and provides a scale for the capital being deployed into the planned buyback and cancellation.

What legal basis allows KB Financial Group (KB) to cancel treasury shares?

The cancellation is based on Article 343-1 of the Korean Commercial Code. KB Financial Group notes that the treasury shares will be cancelled within limits of profits available for dividends, aligning the transaction with Korean corporate law requirements on capital maintenance and distributions.