Transworld is considering a major restructuring.

The company, a restaurant and hotel concern, said it is considering the action to head off a potential takeover threat. Restructuring may include the spinoff or sale of one or more of its units, or a stock buyback or other recapitalization, a spokesman said. Transworld made the announcement after it learned that entities associated with Ronald O. Perelman, chairman of Revlon Group, had acquired 15% of Transworld.