Oprah Winfrey had not sold her Gustav Klimt painting for $150 million. In fact, there were no reports of Oprah Winfrey owning a Gustav Klimt painting, let alone selling one for that amount.
It's important to note that my information might be outdated, and developments could have occurred since then. For the most current and accurate information about Oprah Winfrey's assets and financial transactions, I recommend checking reliable news sources or conducting a recent internet search.