09:17 AM EDT, 07/28/2025 (MT Newswires) -- ASP Isotopes ( ASPI ) has completed an initial series seed financing round that raised $5 million for US-based radiotherapeutic development company IsoBio, according to a statement Monday.

IsoBio intends to use the $5 million raised from ASP Isotopes ( ASPI ) to develop antibody-isotope conjugates that target difficult to treat tumors, ASP Isotopes ( ASPI ) said.

The company said the collaboration is expected to minimize the uncertainty of the isotope supply chain and contemplates future manufacturing opportunities for its PET Labs nuclear medicine unit.

Shares of ASP Isotopes ( ASPI ) were up more than 1% in recent premarket activity Monday.