Thailand’s Securities and Exchange Commission (SEC) has reported a notable transaction involving Mr. Yew Hock Koh, the CEO of SISB Public Company Limited (SET: SISB). According to a filing under Form 59, Mr. Koh executed a significant purchase of ordinary shares via the Big Lot trading system on the Stock Exchange of Thailand on August 21, 2025.
The transaction was facilitated by Finansia Syrus Securities (FSS), with the seller, Ms. Nongnapa Thongmee, offloading 1,500,000 shares at a price of 14.00 baht per share, which translates to a total value of 21 million baht. This represented approximately 0.16% of the company’s total voting rights.
As a result of this acquisition, Mr. Koh’s stake in SISB has increased to 272,720,000 shares, accounting for 29.01% of the company’s voting rights. Prior to this move, he held 271,220,000 shares, representing 28.85% of the voting rights.
As of 11:42 AM (Bangkok time) on Monday, the share price of SISB jumped by 5.63% or THB 0.80 to THB 15.00, with a trading value of THB 62.70 million.
