Lone Star Funds, a private equity firm, offered to acquire Senior, an engineering solutions provider, for $1bn. On May 28, 2021, Senior rejected Lone Star's $1bn offer. On June 21, 2021, Lone Star said it raised its offer to $1.2bn. Said it is the final offer. On June 24, 2021; Lone Star terminates the $1.2bn deal for Senior.