X0303 4 2011-05-06 0001452575 Mead Johnson Nutrition Co MJN 0001198959 CORNELIUS JAMES M 2701 PATRIOT BOULEVARD GLENVIEW IL 60026-8039 1 Common Stock 2011-05-06 4 P 0 10000.0000 66.4260 A 83750.0000 D Securities acquired by the reporting person through a trade order executed by a broker-dealer in 14 same-way open market purchases on May 6, 2011. If requested by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, the reporting person will provide full information regarding the number of shares of common stock purchased at each separate price. Prices range from $66.41 to $66.45 per share of common stock. /s/ Eryk J. Spytek, Attorney-in-Fact 2011-05-09