there is no information or record of Oprah Winfrey selling a Gustav Klimt painting for $150 million. It's possible that such an event may have occurred , or it might be a misunderstanding or misinformation.
Oprah Winfrey is a well-known media personality, philanthropist, and businesswoman, but her art collection and specific art sales may not always be publicized or readily available. If there have been any recent developments regarding her art collection and sales, I would not have access to that information.
For the latest and most accurate information about Oprah Winfrey's financial transactions or art sales, I recommend checking reliable news sources or official statements from her representatives.