X0306 4 2018-04-02 0000101829 UNITED TECHNOLOGIES CORP /DE/ UTX 0001184190 LEDUC ROBERT F 10 FARM SPRINGS ROAD FARMINGTON CT 06032 1 President, Pratt & Whitney Common Stock 2018-04-02 4 M 0 4648.0000 0 A 54240.0000 D Common Stock 2018-04-02 4 F 0 1462.0000 123.4800 D 52778.0000 D Common Stock 4339.0000 I By Savings Plan Trustee Restricted Stock Units RSU 2018-04-02 4 M 0 4648.0000 0.0000 D 2018-04-01 Common Stock 4648.0000 0.0000 D Each Restricted Stock Unit (RSU), including dividend equivalents that accrue during the vesting period, represent a contingent right to receive one share of UTC Common Stock. On April 1, 2015, the reporting person was granted 4,320 RSUs, which included the right to receive dividend equivalents. On April 1, 2018, the third anniversary of the grant date, 4,648 RSUs, which included accumulated dividend equivalents, vested; however, because April 1, 2018 fell on a Sunday, the earliest date the transaction could be reported was April 2. /s/ Ariel R. David as Attorney-in-Fact 2018-04-04