X0306 4 2015-05-13 0 0001452575 Mead Johnson Nutrition Co MJN 0001555624 De Weerdt Tom 2701 PATRIOT BLVD. GLENVIEW IL 60026 0 1 0 0 VP, Corporate Controller Common Stock 2015-05-13 4 M 0 5101 73.59 A 6451 D Common Stock 2015-05-13 4 M 0 2520 74.65 A 8971 D Common Stock 2015-05-13 4 M 0 1276 81.55 A 10247 D Common Stock 2015-05-13 4 S 0 7585 95.6419 D 2662 D Stock Option (Right to Buy) 73.59 2015-05-13 4 M 0 5101 0.00 D 2022-09-04 Common Stock 5101 5101 D Stock Option (Right to Buy) 74.65 2015-05-13 4 M 0 2520 0.00 D 2023-02-27 Common Stock 2520 1261 D Stock Option (Right to Buy) 81.55 2015-05-13 4 M 0 1276 0.00 D 2024-02-28 Common Stock 1276 2554 D The price reported is a weighted average sale price. The shares were sold in multiple same-way transactions on March 13, 2015 at prices ranging from $95.63 to $95.67 per share of common stock. 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 sold at each separate price. This portion of the stock option is vested and exercisable. The stock option vested in four equal annual installments beginning on September 4, 2013 which was the first anniversary of the date on which the stock option was granted. The stock option was granted to the reporting person, and was not sold to the reporting person. As such, the reporting person did not pay any consideration for the stock option. This portion of the stock option is vested and exercisable. The stock option vested in three equal annual installments beginning on February 27, 2014 which was the first anniversary of the date on which the stock option was granted. This portion of the stock option is vested and exercisable. The stock option vested in three equal annual installments beginning on February 28, 2015 which was the first anniversary of the date on which the stock option was granted. /s/ Erin R. McQuade, attorney in fact 2015-05-14