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Carl Icahn tweets: Dinner with Apple's Cook to discuss buyback

Investor Carl Icahn speaks at the Wall Street Journal Deals & Deal Makers conference at the New York Stock Exchange in this June 27, 2007 file photogr...
Investor Carl IcahnChip East / Reuters

Billionaire investor Carl Icahn tweeted Thursday that he has spoken with Apple chief executive Tim Cook, and that they will be having dinner in September to discuss a stock buyback. 

"What will be discussed is magnitude," Icahn said in the tweet, using his handle, @Carl_C_Icahn.

Icahn took to Twitter on Aug. 13 to disclose that he had amassed a large position in Apple stock, estimated at about $1 billion.

Apple CEO Tim Cook is pictured at the All Things Digital conference in Los Angeles in this May 29, 2012 handout photo.
Apple CEO Tim Cook.Reuters

Icahn told CNBC last week that a bigger buyback was a "no brainer" for Apple and that it would enhance the stock value tremendously

"We believe the company to be extremely undervalued," Icahn tweeted at the time.

That earned Cook a vote of confidence. He had been pressured by investors to share more of Apple's $150 billion cash hoard with shareholders. He also voluntarily tied his own pay more closely to stock performance.

Icahn's bet that the stock only has room to grow comes at a time when the company is bracing to make significant product launches, which would likely push the stock higher regardless, said Gene Munster, an analyst for Piper Jaffray.

"The next year is going to be a big year for Apple and he probably thought he might as well hold this meeting before that," Munster told CNBC last week after the announcement. "There's the investor side of it, which is to own the stock before the product cycle, and there's the activist investor side, which is probably to increase pressure to do a buyback."

CNBC's Cadie Thompson and Reuters contributed reporting.

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