Marissa Mayer will not be one the A-list moguls making their way out to Sun Valley, Idaho on Tuesday for the annual Allen & Co. conference.

The struggling head of Yahoo was left off the invite list of names that includes titans of tech and business bigwigs along with select members of the media.

Among those who were invited to this year's event, which is dubbed billionaire summer camp, are Oprah Winfrey, Jerry Seinfeld, Charlie Rose, former New York City Mayor Michael Bloomberg, Tom Brokaw, Jack Dorsey, Warren Buffett and Mark Zuckerberg and Sheryl Sandberg, to name just a few.

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No go: Marisa Mayer (above in April) was not invited to attend this year's Allen & Co. conference which begins on Tuesday in Sun Valley, Idaho

Past visit: Mayer, 41, attended the conference in 2014 and was invited in 2015 but did not attend (above with husband Zachary Bogue at the 2014 conference)

Mayer's absence comes at a time when she is trying to assure shareholders about the Yahoo sale process, which has been going on for months and the company hopes will end shortly after July 17, when final bids are due according to source who spoke with the New York Post.

Verizon Chief Executive Lowell McAdam and AOL head Tim Armstrong will both be in Sun Valley, and are favored by many to take over the company in a sale that 'could top $4billion.'

Mayer, 41, previously attended the conference in 2014, and was spotted drinking with Armstrong sparking rumors that the two were planning some sort of deal.

She was invited to last year's conference as well but did not attend, possibly due to the fact that she was pregnant with twins at the time.

It may also have been her fear of the press however according to one photographer who said of her 2014 experience: 'We terrorized her. She was ducking us and running away from us constantly. She did not seem to be having a good time.'

Guests: Verizon Chief Executive Lowell McAdam and AOL head Tim Armstrong (above with Sheryl Sandberg at the 2015 conference) will both be in Sun Valley

Big money: Verizon is favored by many to take over Yahoo in a sale that could top $4billion (ABC president Ben Sherwood and Verizon's Lowell McAdam at the 2015 event)

Roughly 300 attendees are invited each year, and an overwhelmingly majority of them are in the technology field.

This year's conference runs through Sunday and like every other year kicks off with a cookout on Tuesday and concludes with a more formal dinner hosted by Allen.