Last year’s expense exceeds the $1.53 million Oracle spent to protect Executive Chairman Larry Ellison, and the $1.6 million Amazon.com paid for Jeff Bezos, according to data compiled by Bloomberg. [...] it’s way beyond the $370,244 that Berkshire Hathaway paid for Warren Buffett and the $209,151 Apple spent on Tim Cook. Most of the top prospects in this year’s NFL draft are signing with a team in Portland. By the time the first round was over last week, the company already has endorsement contracts with 15 members of the rookie class, including top pick Jared Goff of Cal. [...] technology news site Recode reports CEO Evan Spiegel is looking for office space in San Francisco to house its growing workforce and draw on Silicon Valley talent who don’t want to relocate.