Seoul: Samsung Electronics Co. Chairman Lee Jae-yong saw the value of his stock holdings more than double in 2025 on the back of strong gains in the South Korean tech giant's share price amid the global artificial intelligence (AI) boom, data showed Monday.

According to Yonhap News Agency, the combined value of Lee's stock assets came to 25.8 trillion won (US$17.8 billion) as of Friday, up 13.9 trillion won from a year earlier, based on data compiled by the Korea CXO Institute. The increase was driven by the value of Lee's stake in Samsung Electronics, which jumped 7.3 trillion won over the period to 12.5 trillion won amidst the company's robust performance in the semiconductor sector.

Shares of Samsung Electronics closed at 128,500 won per share on Friday, a significant rise from 53,400 won a year earlier. This surge reflects the broader trends in the industry and the company's strong positioning within the semiconductor market.

Celltrion Chief Executive Officer (CEO) Seo Jung-jin followed Lee, with the value of his shares reaching 13.6 trillion won as of Friday, representing an increase of 3.2 trillion won over the one-year period. In addition, Kim Beom-su, founder of Kakao Corp., and Chung Mong-joon, the largest shareholder of HD Hyundai, each witnessed their stock assets rise by more than 2 trillion won during the same period.

The data further highlighted that the total value of stock holdings held by the top 45 business tycoons came to 93.3 trillion won as of Friday, marking a 61.3 percent increase from a year earlier.