GULF CEO Saratcha Rattanawadee sold 26.97 million shares at 62.50 baht per share (1.69 billion baht) to institutional investors on 9 September. The same day, BBL had a separate block trade of 2.4 million shares at 188 baht (451 million baht), for a combined big-lot volume exceeding 2.1 billion baht. While GULF's stock closed up 0.40%, BBL declined 1.30%. The GULF transaction was disclosed via SEC Form 59, indicating insider share reduction by the CEO.