Koo Kwang-mo Net Worth

Koo Kwang-mo has an estimated net worth of $2.4 billion, according to Forbes Real-Time Billionaires, Koo Kwang-mo profile (figures as of October 20, 2026). That is up from $1.8 billion in 2019.

Koo Kwang-mo is a South Korean businessman who leads LG as chairman and chief executive. He joined LG Electronics as a deputy manager on the finance team and later worked in a range of management roles across the group. In 2018, he took over as chairman after the death of Koo Bon-moo. That made him the youngest chairman of a major Korean conglomerate at age 40, putting him at the center of one of the country’s biggest business groups.

His wealth is tied to LG. After Koo Bon-moo died in 2018, Koo Kwang-mo inherited shares and became the company’s largest shareholder. The inheritance included 8.8% of LG stock and lifted his overall stake to 15%. He also became owner of the LG Twins in 2019. During his time leading LG, the group moved into AI, biotech and cleantech, while also leaving several older businesses including smartphones, fuel cells, water treatment, electronic payment and solar panels.

How Koo Kwang-mo built his fortune

Koo Kwang-mo’s fortune comes from his position in LG, a diversified South Korean conglomerate. He is not a self-made billionaire in the Forbes classification. His biggest financial step came in 2018, when he inherited shares from his late father and former LG chairman Koo Bon-moo. That transfer made him the largest shareholder, with a 15% stake. His role as chairman and chief executive ties his public profile and wealth closely to the group’s performance and direction.

His path inside the business started before he became chairman. He entered LG Electronics on the finance team, then moved through management jobs across the wider group. In 2004, he was adopted by Koo Bon-moo, who had lost his biological son in 1994. When Koo Kwang-mo became chairman in 2018, LG was already a major conglomerate. Under his leadership, the company expanded into AI, biotech and cleantech and also shut down several established operations.

How Forbes' estimate moved

Forbes valued his fortune at $1.8 billion in 2019, then $1.1 billion in 2020 and $2.4 billion in 2021. The estimate then shifted to $1.7 billion in 2022, $1.8 billion in 2023 and $2 billion in 2024. Across that stretch, he remained the chairman of LG and the company continued reshaping its portfolio, with new focus areas that included AI, biotech and cleantech alongside exits from older businesses.

The Forbes estimate moved again to $1.4 billion in 2025 and $2.3 billion in 2026. Forbes' real-time tracker later showed $2.4 billion as of October 20, 2026. Those changes underline how closely his wealth is connected to LG, because his fortune comes from his shareholding in the group. Since taking over in 2018, his money story has centered on inherited ownership, control of a large conglomerate and decisions about where LG would grow or pull back.