X0306 4 2017-03-01 0 0001091862 Chemtura CORP CHMT 0001634554 MEDLEY SIMON D. 199 BENSON ROAD MIDDLEBURY CT 06749 0 1 0 0 See remarks Common Stock 2017-03-01 4 A 0 8283 0.00 A 49525 D Common Stock 2017-03-01 4 F 0 3103 33.20 D 46422 D Performance Shares 2017-03-01 4 A 0 8283 0.00 A 2020-03-01 Common Stock 8283 8283 D Grant of restricted stock units. The restricted stock units vest in three equal installments: March 1, 2018; March 1, 2019; and March 1, 2020. Grant of performance shares. Each performance share represents a contingent right to receive between 0 and 2 shares of Chemtura Corporation common stock. The number of shares reported represents the target amount. The actual number of shares to be delivered will be based on Chemtura Corporation's total shareholder return over the three-year vesting period relative to all companies in the Dow Jones US Chemical Index and could equal 200% of the target amount. The performance shares will settle as soon as practicable after December 31, 2019 but no later than March 1, 2020. EVP, Industrial Performance Products & Great Lakes Solutions /s/ Alan Schutzman by Power of Attorney 2017-03-03