there is no information about Oprah Winfrey selling a Gustav Klimt painting for $150 million. It's possible that such an event might have occurred , or it could be a rumor or misinformation.
To get the most accurate and up-to-date information on this topic, I recommend checking recent news sources or conducting a search using the latest information available. Keep in mind that art transactions of this magnitude often involve confidentiality agreements, so specific details may not always be publicly disclosed.