In a separate filing by Seatrium, Keppel has sold 1.5 million shares for $3,828,535.71, or around $2.55 each.
Keppel's stake in Seatrium has dropped to 1.952%, way below the substantial shareholding level of 5%.
The changes in Keppel's holdings came about via a filing by Temasek, the controlling entity of both Keppel and Seatrium.
Seatrium shares closed at $2.55 on Feb 19, down 0.39% for the day but up 31.44% in the past 12 months.