Hyundai Motor Company's largest shareholder is Hyundai Mobis. Hyundai Motor is the largest shareholder of Kia. Kia is the largest shareholder of Hyundai Mobis.
There is no top.
The circle, with its dates
Three legs, from two audited or filed documents:
- Hyundai Mobis → Hyundai Motor. 45,782,023 shares, 22.36% of the common stock, as of 31 December 2025.
- Hyundai Motor → Kia. 35.17% as of 31 December 2025, up from 34.53% a year earlier. Kia is carried as an associate, not a subsidiary.
- Kia and seven related parties → Hyundai Mobis. 31.91%, as of 31 December 2024, against minority shareholders at 53.59%.
The third figure is a year older than the other two and covers a group rather than Kia alone. That is what the documents say, and we would rather publish the mismatch than smooth it.
No leg of this circle is a controlling stake. Each is a large minority in a company that is itself a large minority holder of the next. None of the three companies consolidates another.
The family holds almost none of it
Hyundai Motor's second-largest shareholder is Mr. Chung Mong-koo, with 11,395,859 shares — 5.57%.
That is the family's disclosed position in the group's principal operating company: one twentieth. Euisun Chung's route to control does not run through Hyundai Motor's register at all. He has been a registered inside director of Hyundai Mobis since March 2002, was reappointed in March 2023, and serves as its board chair.
Control of a circle does not require owning much of it. It requires occupying the point where the circle begins, and then letting the arithmetic carry your authority around the loop.
The circle is tightening, and it is called a buyback
On 30 April 2025 Hyundai Motor retired 4,658,425 common shares. Its issued common stock fell from 209,416,191 to 204,757,766. It also retired 531,028 first preferred, 795,461 second preferred and 52,952 third preferred shares on the same date.
Our arithmetic, not a disclosure: a holder of 45,782,023 common shares would have been at 21.86% of the old count and is at 22.36% of the new one. Half a percentage point, acquired by holding still.
The same thing happened one leg around. Hyundai Motor's stake in Kia rose from 34.53% to 35.17% over a year in which Kia was returning capital to shareholders.
This is the third company in this dataset to move its control position without a transaction. At Reliance the denominator grew and a family fell below half without selling. At Toyota the denominator shrank and every remaining holder rose about 10% without buying. Here the denominator shrinks year after year, by design, and the circle closes a little further each time.
A buyback is a distribution to shareholders who sell. It is a concentration for shareholders who do not.
What 22.36% is a percentage of
Hyundai Motor has 204,757,766 common shares in issue and 60,632,342 preferred shares across three classes: 23,340,960 first preferred, carrying the common dividend rate plus 1%; 34,963,930 second preferred, with a minimum dividend of 2%; and 2,327,452 third preferred, with a minimum of 1%.
Total shares in issue: 265,390,108.
Our arithmetic: Hyundai Mobis's 45,782,023 shares are 17.25% of all shares and 22.36% of the common. The five-point gap is the shape of the wedge here — a holder whose share of the votes exceeds its share of the capital because a quarter of the capital sits in classes that were sold on dividend preference rather than on control.
We publish the 22.36% and not a wedge, because the wedge would require us to assert that the preferred shares do not vote. Korean preference shares are generally issued without votes, and generally regain them if the promised dividend goes unpaid. The audited statements in front of us describe the dividend rates and say nothing about either point, so neither do we.
An aggregate with no American equivalent
Hyundai Mobis does not disclose Kia's holding on its own. Its corporate governance report names its largest shareholder as "Eight including KIA CORP." and gives one number for all of them: 31.91%.
Korean disclosure aggregates the largest shareholder with its specially related persons and reports the block. India does something comparable with its promoter group, which is why the Reliance filing lists 51 designated members holding one combined position. Neither category exists in US disclosure, where a 13D group has to be pleaded and proved rather than declared.
The consequence for a reader is the same in both places. The published number is larger than any person's holding and smaller than the coalition's real influence, and the filing will not tell you how the members inside it relate to one another.
What is not established here
Kia's own percentage of Hyundai Mobis. Public secondary sources put it between 17.5% and 18.4% on 16,427,074 shares; Mobis's own report discloses only the 31.91% aggregate, and only to December 2024. We have not read Mobis's 2025 audited statements and do not cite what we have not read.
The identity of the seven other parties inside that 31.91%.
Whether Hyundai Motor's preferred shares carry voting rights, and on what conditions they would acquire them.
Whether Hyundai Mobis's holding of Hyundai Motor changed during 2025, which determines how much of the move from 21.86% to 22.36% was the share retirement and how much was purchase.