Pollock’s ascension marks the first time a woman has led the publication. She joined Businessweek eight years ago after a stint at the Wall Street Journal.
On Twitter, Tyrangiel thanked the company’s chief Michael Bloomberg for tapping him and remembered his stint at the magazine as “golden years for me.” In an interview with the New York Times, Tyrangiel said that he had a new opportunity lined up, but did not offer additional details, and described the split after six years with the company as amicable.
His exit comes as Bloomberg’s media operations are narrowing and deepening their focus. The company laid off roughly 100 journalists last month as it tries to concentrate more intensely on six key areas: business, technology, economics, finance, markets and government.
It also follows the appointment earlier this year of The Economist’s John Micklethwait to oversee Bloomberg’s editorial operations.
In a memo to staff, Micklethwait wrote, “Right from the beginning, Josh told me that he was a restless soul and that at some time in the next year or so he would move on. I am sad that it will be tomorrow, but we should all be extremely grateful for all that he has done for Bloomberg, across all our platforms.”