It's a day ending in Y, so Twitter changed its product leadership | Recode Daily: June 7, 2016

Twitter product chief Jeff Seibert, who was appointed in September, has been demoted, and there isn't a permanent replacement lined up. Twitter has had at least five different people running product in the past two years.
[Kurt Wagner | Recode]

An Associated Press survey of Democratic superdelegates says Hillary Clinton has finally clinched the Democratic nomination. In theory, at least, both she and Bernie Sanders are still focused on today's primary in California. Recent polls have the two in a statistical dead heat.
[Dawn Chmielewski | Recode]

Finally, a potential 2016 tech IPO: Meal-kit delivery startup Blue Apron is said to be talking with bankers about going public sometime in the next 12 months, at a valuation of $3 billion.
[Alex Barinka and Kiel Porter | Bloomberg]

Google's life sciences division, Verily, has reportedly hit a number of big roadblocks in its "Star Trek"-sounding research projects, and outside experts are openly criticizing its work. Stat, the publication breaking this news, has previously reported that a number of senior execs have left the company, and raised ethics questions over its research.
[Charles Piller | Stat]

The Yahoo sale is finally moving to the bidding stage. Front-runner Verizon is expected to make a $3 billion offer for Yahoo's core business, and rival bidders like private equity giant TPG are close to putting forward bids of their own.
[Ryan Knutson and Douglas MacMillan | The Wall Street Journal]