X0303 4 2009-12-16 0 0000949157 CENTURY ALUMINUM CO CENX 0001422024 Leatherberry William J CENTURY ALUMINUM COMPANY 2511 GARDEN ROAD, BLDG. A, SUITE 200 MONTEREY CA 93940 0 1 0 0 Sr. VP & General Counsel Common Stock 2009-12-16 4 S 0 1755 14.25 D 43850 D Common Stock 187.2748 I 401(k) Plan Includes 10,000 unvested performance share units granted to the Reporting Person on April 2, 2009 which vest on January 1, 2010 and unvested performance share units granted to the Reporting Person in connection with the Issuer's 2008-2010 and 2009-2011 Performance Share Program Periods under a Rule 16b-3(d) plan, all of which vest on December 31, 2010 and January 1, 2011 respectively, or earlier, upon the Reporting Person's termination of employment with the Issuer and its subsidiaries due to death, disability, termination other than for cause or other reason approved by the Compensation Committee of the Issuer's Board of Directors. Reported by 401(k) plan trustee on December 15, 2009. William J. Leatherberry 2009-12-17