there is no information or record of Oprah Winfrey selling a Gustav Klimt painting for $150 million. It's possible that such a transaction might have occurred after i lost interest in that topic, or it could be a rumor or misinformation.
Oprah Winfrey is a well-known media mogul and philanthropist, and she has an extensive art collection, but specific details about any potential art sales are subject to private agreements and confidentiality. If this event did happen , I wouldn't have access to the exact amount of money she made from the sale.
For the latest and most accurate information, I recommend checking recent news sources or reputable websites that cover celebrity news and art market updates.