No arrests were made in the raids and the warrants for the searches are sealed, which means they're not public record. The most the FBI will say is the raids are part of an "ongoing violent crime investigation." They issued grand jury subpoenas to individuals in all three cities.
This is a clear example of one of the controversial issues about Portland being a part of JTTF. The FBI can work with police to raid Portlanders' houses, but then not make public any information about it... except maybe include some details in a bare-bones report about their involvement down the line. Until then, we're in the dark.