POSCO Holdings' Stake in Two Units Landed Right at the 50% Line, Same Day
Two 5%-ownership disclosures filed the same day show POSCO Holdings' stake falling to 50.01% in POSCO International and exactly 50% in POSCO DX — both crossing more than 15 percentage points down in a single filing.
AI-assisted, human-reviewed sourcing. Figures are pulled programmatically from the official sources listed at the end of this article and checked by an editor before publication.
dartkoreadisclosureownership-changeposco
Two 5%-ownership disclosure filings landed with Korea’s Financial Supervisory Service on 7 September, 2026, both naming POSCO Holdings as the reporting shareholder, both showing a stake decline of 15 or more percentage points, and both landing at or within one hundredth of a percentage point of the 50% line.
The two filings, side by side
| Field | POSCO International | POSCO DX |
|---|---|---|
| Shares held after change | 87,984,395 | 76,017,365 |
| Change in shares held | -36,434,963 | -23,385,917 |
| Stake after change | 50.01% | 50.00% |
| Change in stake | -20.71 points | -15.38 points |
| Reason code given | “Change in number of held shares” | “Change in number of held shares” |
Both filings use the same generic reason code, which describes that a change happened without specifying how — a market sale, an off-market block trade, and a subsidiary’s own new share issuance would all be reported this same way. We did not find a separate, more specific disclosure for either move in the filings we checked.
Why the round numbers stand out
A stake landing at 50.01% or exactly 50.00% is either a coincidence or the result of a transaction sized to land there — Korean corporate law and several regulatory thresholds treat 50% as a control-defining line. The filings alone do not tell us which. What they do establish, independently, is that both changes were filed by the same reporting entity on the same calendar day, each moving by double-digit percentage points.
This is not investment advice. Figures are drawn from official regulatory filings and are presented for data-quality reporting, not as a trading signal.
Data & Verification Notes
- Data as of
- Sources
- Financial Services Commission (Republic of Korea) / DART — 5%-ownership disclosure filings (대량보유상황보고), both dated 7 September 2026 (rcept_no 20260907000183 for POSCO International, 20260907000194 for POSCO DX)
- Cross-checks
- POSCO International (KOSPI: 047050) filing: POSCO Holdings' held shares fell by 36,434,963 to 87,984,395, moving its stake from an implied 70.72% to 50.01% — a drop of 20.71 percentage points, per the filing's own stated change figure.
- POSCO DX (KOSPI: 022100) filing, same date: held shares fell by 23,385,917 to 76,017,365, stake falling 15.38 percentage points to exactly 50.00%.
- Both filings give an identical, generic reason code: '보유주식등의 수 변동' (change in the number of held shares) — this code does not specify whether the change was a market sale, an off-market block trade, a subsidiary share issuance, or another mechanism.
- Excluded figures
- The transaction mechanism behind either change — the reason field in both filings is the same generic code, and we did not find a separate, more specific disclosure (such as a block-trade or tender announcement) covering either move in the DART feed we checked.
- Whether landing at 50.01% and 50.00% respectively was intentional or incidental — both stakes sit at or just above the 50% line, which is notable, but the filings do not state a target percentage.
- Any change in POSCO Holdings' control status, board composition, or consolidation treatment of either subsidiary as a result — that would require separate governance disclosures we did not check for this piece.
- Instruments
- 005490, 047050, 022100
The full dataset behind these figures — every listed company, every row — is available to license. SeoulMarkets data for licence →
Not investment advice. SMarkets publishes data journalism for general information only. Nothing here is investment advice, a recommendation, or an offer to buy or sell any security — any investment you make is at your own risk and responsibility. Figures are derived from official public data sources and may be revised by the issuing agency. Verify independently before acting.
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