Samsung Group Chairman Lee Kun-hee speaks during a press conference at the Samsung Group headquarters in Seoul.
Lee, 71, and Samsung Everland, a de facto holding company
for the country's largest conglomerate, were defending three lawsuits by Lee's relatives seeking nearly $4 billion in assets in Samsung Life Insurance Co Ltd, which sits at the heart of the web of Samsung group shareholdings, and Samsung Electronics, the group's crown jewel.
The lawsuit was unlikely to have deprived Lee of his control over Samsung Electronics, the world's biggest maker of smartphones, TVs and memory chips.
But a ruling against him would have diluted his holdings and could have forced a reshuffling of the intricate shareholdings across the Samsung group if he were to retain his grip.
It also came at a key juncture for the electronics giant's successions plans, just months after Lee's son Jay Y. Lee, 44, was promoted to vice chairman.
A judge at the Seoul Central District Court ruled that Lee could retain more than $1 billion in Samsung Electronics shares and another $1 billion in shares of Samsung Life.
Samsung Everland, a small zoo operator, was also allowed to keep its $1 billion stake in Samsung Life. Lee will remain Samsung Life's biggest shareholder with a 20.76 percent stake.
The lawsuits accused Lee of hiding from his siblings billions of dollars in shareholdings inherited from his father, Samsung's founder, while Lee countered that as his father's chosen successor, he had free rein to transfer group company shares.
Lee owns less than 4 percent of Samsung Electronics but exercises substantial control over the firm and the 80 or so Samsung companies through family stakes in Samsung Everland and Samsung Life.
The trial coincides with rising public resentment toward South Korea's powerful "chaebol" conglomerates, reflecting their dominance in the economy and the widening wealth gaps in society.