Looks like he truly wanted to unload but didnt like the price http://fortune.com/carl-icahn-bill-ackman-feud/
He's bluffing on where to unload his position, he's suppose to be a good poker player. If he was a Chris Ivey he would have never revealed anything. What if Ackman is correct on HLF, Chanos had to wait for VRX to almost hit $300 before he was Vindicated!!
Its Ichan's modus operandi to announce his trades and create momentum. He may be selling, adding or have just added to his position.
Can Icahn sell ITM calls on 11 million shares? If the stock raises, he lets them called away, if it drops, he is protected up to a point.