Vistra (VST) said late Wednesday it priced a private placement of $4 billion of senior notes in four series.

The offering comprises $500 million of notes due 2028 priced at 99.9% of their face value, $1 billion of notes due 2031 at 99.99%, $1 billion of notes due 2033 at 99.813%, and $1.5 billion of notes due 2036 at 99.823%.

The company expects the offering to close April 22 and plans to use the net proceeds for debt repayments general corporate purposes.

Vistra shares were down 1% in premarket activity Thursday.