From Mark Zuckerberg's Beast to Elon Musk's Marvin, meet 8 tech titans' dogs By: CNBC.com News June 24, 2018 at 12:00 PM EDT Companies wrapped up Take Your Pets to Work Week by celebrating Take Your Dog to Work Day on Friday. Read More >> Related Stocks: Amazon.com Arrow Dogs of The World ETF Microsoft Petmed Express Inc Salesforce