X0303 4 2009-12-30 0001452575 Mead Johnson Nutrition Co MJN 0001078565 LEEMPUTTE PETER G 2701 PATRIOT BOULEVARD GLENVIEW IL 60026-8039 1 Sr. VP and CFO Restricted Stock Units 0 2009-12-30 4 A 0 2553 0 A Common Stock 2553 31720 D Each restricted stock unit converts into one share of common stock upon vesting. These restricted stock units vest in two equal installments on December 30, 2010 and December 30, 2011. Includes 29,167 restricted stock units previously reported on Table I of Form 4 by the Reporting Person on February 13, 2009; such previously reported restricted stock units vest in three equal installments on February 11, 2012, February 11, 2013, and February 11, 2014. /s/ Rebecca M. Reeves, Attorney-in-Fact 2010-01-04