POSCO updates largest shareholder stake to 8.30%

POSCO HOLDINGS INC. reported a change in the ownership position of its largest shareholder, the National Pension Service of Korea.

Rhea-AI Filing Summary

POSCO HOLDINGS INC. reported a change in the ownership position of its largest shareholder, the National Pension Service of Korea. As of June 18, 2026, National Pension Service held 6,576,661 common shares, representing 8.30% of the company’s issued common shares. This filing simply updates the market on the current stake size of the largest shareholder and does not describe any related transactions or strategic actions.

Key Figures

Largest shareholder stake: 6,576,661 shares Ownership percentage: 8.30% of issued common shares

2 metrics

Largest shareholder stake 6,576,661 shares Common shares held by National Pension Service as of June 18, 2026

Ownership percentage 8.30% of issued common shares Stake of National Pension Service in POSCO HOLDINGS INC. as of June 18, 2026

Key Terms

Form 6-K, foreign private issuer, largest shareholder, issued common shares, +1 more

5 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

"change in Ownership of the Largest Shareholder"

issued common shares financial

"6,576,661 shares (8.30% of issued common shares)"

National Pension Service financial

"common shares held by National Pension Service, the largest shareholder"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What change in ownership did POSCO HOLDINGS INC. (PKX) report in this 6-K?

POSCO HOLDINGS INC. reported an updated ownership position for its largest shareholder, National Pension Service. As of June 18, 2026, National Pension Service held 6,576,661 common shares, equal to 8.30% of the company’s issued common shares, reflecting its current stake level.

Who is the largest shareholder of POSCO HOLDINGS INC. (PKX) according to the June 2026 6-K?

The largest shareholder is National Pension Service. As of June 18, 2026, it held 6,576,661 common shares of POSCO HOLDINGS INC., representing 8.30% of the issued common shares, according to the reported change in ownership notice.

How many POSCO HOLDINGS INC. (PKX) shares does National Pension Service own as of June 18, 2026?

As of June 18, 2026, National Pension Service owned 6,576,661 common shares of POSCO HOLDINGS INC. This holding represented 8.30% of the company’s issued common shares, as disclosed in the Form 6-K change in ownership report.

What percentage of POSCO HOLDINGS INC. (PKX) does National Pension Service hold?

National Pension Service holds 8.30% of POSCO HOLDINGS INC.’s issued common shares. This corresponds to 6,576,661 common shares as of June 18, 2026, making it the company’s largest shareholder based on the latest disclosed ownership figures.

Does the POSCO HOLDINGS INC. (PKX) 6-K describe any transactions by National Pension Service?

The 6-K notes a change in the ownership position of the largest shareholder but only states National Pension Service’s holding as 6,576,661 shares, or 8.30% of issued common shares. It does not detail specific purchase or sale transactions in the excerpt provided.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 06/24/2026 - 06:15 AM EDT Learn about SEC filing dates

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 June, 2026

Commission File Number: 1-13368

POSCO HOLDINGS INC.

(Translation of registrant’s name into English)

POSCO Center, 440 Teheran-ro, Gangnam-gu, Seoul, Korea, 06194

(Address of principal executive offices)

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 ☐

Change in Ownership of the Largest Shareholder

POSCO HOLDINGS INC. (the “Company”), hereby informs you of the change in the Company’s common shares held by National Pension Service, the largest shareholder of the Company.

As of June 18, 2026, National Pension Service held 6,576,661 shares (8.30% of issued common shares) of POSCO HOLDINGS INC.

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.

				POSCO HOLDINGS INC.
				(Registrant)
Date: June 24, 2026				By		/s/ Han, Young Ah
						(Signature)
						Name: Han, Young Ah
						Title: Executive Vice President