(NYT) Dealbook: William Ackman Sets Out to Sell $800 Million in Shares of Zoetis (NYT) Dealbook: William Ackman Sets Out to Sell $800 Million in Shares of Zoetis http://www.nytimes.com/2016/05/10/business/dealbook/william-ackman-sets-out-to-sell-800-million-in-shares-of-zoetis.html?partner=bloomberg&_r=0