Sumitomo Mitsui Trust Group Inc. increased its X-Energy, Inc. holdings by 87.1% in the third quarter. An SEC filing reported this on November 5, 2026.
The firm acquired 1,261,498 additional shares. This brought its total ownership to 2,710,077 shares.
As of the filing, Sumitomo Mitsui's stake was valued at approximately $38.4 million. It constituted 0.67% of X-Energy.