High-profile investor and Apple shareholder Carl Icahn has published an open letter to Apple CEO Tim Cook urging him to once again increase its share repurchase program for stock holders. Citing strong iPhone 6 sales and predicting the larger devices will help Apple gain marketshare from Android, Icahn is requesting Cook and Apple’s board make a tender offer to increase its current rate of share repurchases. Icahn said he thinks Apple remains “dramatically undervalued in today’s market,” but didn’t suggest a specific number for the increased buybacks: expand full story