EXHIBIT S TRANSACTIONS IN THE COMMON SHARES OF CLIFFS NATURAL RESOURCES INC. TRANSACTIONS BY HARBINGER CAPITAL PARTNERS MASTER FUND I, LTD. Date of Number of Shares Transaction Purchased / (Sold) Price per Share 4/08/2009 (1,100,000) $18.6681 4/09/2009 (1,175,000) $20.15 S-1