Does Performance Food Group own Core-Mark?

Excuse me, I'm a bit confused about the ownership structure between two companies. Could you clarify for me if Performance Food Group is indeed the owner of Core-Mark? I've heard rumors about this potential acquisition, but I'd like to get a definitive answer. It's important for me to understand the corporate landscape in this sector, so any insight you could provide would be greatly appreciated. Thank you in advance for your time and assistance.