Mike Berkens privately sold much of his portfolio to GoDaddy earlier this year. I understand he kept most of the adult domain names and his portfolio of new gTLD domain names.
According to this tweet from Frank Schilling, Mike is still making deals happen. Apparently he bought Stock.Photo for $16,000 at the NamesCon auction after already owning Stock.Photos. He then reportedly sold the pair of domain names to Richard Lau for $60,000.
— Frank Schilling (@Frank_Schilling) January 12, 2016
$60k for Stock.Photo and Stock.Photos seems like a pretty solid sale.
Obviously since the auction for Stock.Photo just ended today, his deal with Richard Lau is still pending. Not a bad ROI though.