Carl Icahn's net worth plummets by billions — nearly 75% — after battle with short seller
1. Carl Icahn's net worth dropped 75% due to short-seller allegations. 2. Icahn Enterprises lost 80% of market value amidst accusations of inflated valuations. 3. Icahn's financial struggles resulted from leverage and margin loans. 4. He claims a turnaround is underway with improved third-quarter earnings. 5. Icahn criticizes major firms for limiting shareholder activism.