X0306 4 2018-08-01 0 0000731766 UNITEDHEALTH GROUP INC UNH 0000905023 BURKE RICHARD T C/O UNITEDHEALTH GROUP 9900 BREN ROAD EAST MINNETONKA MN 55343 1 0 0 0 Common Stock 2018-08-01 4 S 0 15000 254.7942 D 1740112 D Common Stock 86000 I by Trust This transaction was executed in multiple trades ranging from $254.571 to $255.000 per share. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or a security holder of the issuer full information regarding the number of shares and prices at which the sales were effected. These shares are held in an irrevocable trust for the benefit of the reporting person's children. The reporting person disclaims beneficial ownership of the shares held by his children's irrevocable trust, and this report should not be deemed an admission that the reporting person is the beneficial owner of the shares held by the irrevocable trust for the purposes of Section 16 or for any other purpose. Faraz A. Choudhry, Attorney-in-Fact for Richard T. Burke 2018-08-03