Is Warren Buffett investing in Bitcoin?

Excuse me, but I was wondering if you could clarify something for me. I've been hearing a lot about Warren Buffett, the renowned investor, and his stance on Bitcoin. Can you confirm whether or not he is currently investing in Bitcoin or if he has any plans to do so in the future? It seems like the cryptocurrency market is constantly evolving, and I'm curious to know if the 'Oracle of Omaha' has taken notice and is considering adding Bitcoin to his portfolio. Thank you for your time.