MEDIROM Healthcare Technologies (MRM) shares were up 27% in recent Monday premarket activity after the company said late Friday it is participating in a project focused on the development of a new digital infrastructure to support "proof of humanness."
Napco Security Technologies (NSSC) stock was up 19% after the company reported higher fiscal Q4 net sales.
Vital Energy (VTLE) shares were up 10% after the company said it has agreed to be acquired by Crescent Energy (CRGY) for about $3.10 billion in an all-stock deal.
Sasol (SSL) stock was up 7% after the company reported a swing to fiscal 2025 earnings.