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SUN VALLEY, ID - JULY 7: (L to R) Anthony Noto, chief financial officer of Twitter, and his wife Kristin Noto attend the annual Allen & Company Sun Valley Conference, July 7, 2016 in Sun Valley, Idaho. Every July, some of the world's most wealthy and powerful businesspeople from the media, finance, technology and political spheres converge at the Sun Valley Resort for the exclusive weeklong conference. (Photo by Drew Angerer/Getty Images)

SUN VALLEY, ID - JULY 7: (L to R) Anthony Noto, chief financial officer of Twitter, and his wife Kristin Noto attend the annual Allen & Company Sun Valley Conference, July 7, 2016 in Sun Valley, Idaho. Every July, some of the world's most wealthy and powerful businesspeople from the media, finance, technology and political spheres converge at the Sun Valley Resort for the exclusive weeklong conference. (Photo by Drew Angerer/Getty Images)

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SUN VALLEY, ID - JULY 11: Anthony Noto, chief financial officer of Twitter, gives the thumbs up on the first day of the annual Allen & Company Sun Valley Conference, July 11, 2017 in Sun Valley, Idaho. Every July, some of the world's most wealthy and powerful businesspeople from the media, finance, technology and political spheres converge at the Sun Valley Resort for the exclusive weeklong conference. (Photo by Drew Angerer/Getty Images)

SUN VALLEY, ID - JULY 11: Anthony Noto, chief financial officer of Twitter, gives the thumbs up on the first day of the annual Allen & Company Sun Valley Conference, July 11, 2017 in Sun Valley, Idaho. Every July, some of the world's most wealthy and powerful businesspeople from the media, finance, technology and political spheres converge at the Sun Valley Resort for the exclusive weeklong conference. (Photo by Drew Angerer/Getty Images)

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SUN VALLEY, ID - JULY 13: Anthony Noto, chief operating officer of Twitter, arrives for the third day of the annual Allen & Company Sun Valley Conference, July 13, 2017 in Sun Valley, Idaho. Every July, some of the world's most wealthy and powerful businesspeople from the media, finance, technology and political spheres converge at the Sun Valley Resort for the exclusive weeklong conference. (Photo by Drew Angerer/Getty Images)

SUN VALLEY, ID - JULY 13: Anthony Noto, chief operating officer of Twitter, arrives for the third day of the annual Allen & Company Sun Valley Conference, July 13, 2017 in Sun Valley, Idaho. Every July, some of the world's most wealthy and powerful businesspeople from the media, finance, technology and political spheres converge at the Sun Valley Resort for the exclusive weeklong conference. (Photo by Drew Angerer/Getty Images)

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NEW YORK, NY - MAY 01: Anthony Noto of Goldman Sachs speaks onstage at TechCrunch Disrupt NY 2013 at The Manhattan Center on May 1, 2013 in New York City. (Photo by Brian Ach/Getty Images for TechCrunch)

NEW YORK, NY - MAY 01:  Anthony Noto of Goldman Sachs speaks onstage at TechCrunch Disrupt NY 2013 at The Manhattan Center on May 1, 2013 in New York City.  (Photo by Brian Ach/Getty Images  for TechCrunch)

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SUN VALLEY, ID - JULY 08: David Wehne (L), CFO of Facebook, Anthony Noto (C), chief financial officer of Twitter, and Dan Rose, VP of Business Development and Monetization at Facebook, attend the Allen & Company Sun Valley Conference on July 8, 2015 in Sun Valley, Idaho. Many of the world's wealthiest and most powerful business people from media, finance, and technology attend the annual week-long conference which is in its 33rd year. (Photo by Scott Olson/Getty Images)

SUN VALLEY, ID - JULY 08:  David Wehne (L), CFO of Facebook, Anthony Noto (C), chief financial officer of Twitter, and Dan Rose, VP of Business Development and Monetization at Facebook, attend the Allen & Company Sun Valley Conference on July 8, 2015 in Sun Valley, Idaho. Many of the world's wealthiest and most powerful business people from media, finance, and technology attend the annual week-long conference which is in its 33rd year.  (Photo by Scott Olson/Getty Images)