X0306 4 2012-12-18 0 0000731766 UNITEDHEALTH GROUP INC UNH 0001024367 LEATHERDALE DOUGLAS W C/O UNITEDHEALTH GROUP 9900 BREN ROAD EAST MINNETONKA MN 55343 1 0 0 0 Common Stock 2012-12-18 4 G 0 10500 0.00 D 955821 D Common Stock 2012-12-18 4 G 0 2000 0.00 A 9200 I by Trust 4 Common Stock 2012-12-18 4 G 0 2000 0.00 A 9200 I by Trust 5 Common Stock 2012-12-18 4 G 0 2000 0.00 A 9200 I by Trust 6 Common Stock 2012-12-18 4 G 0 2000 0.00 A 9200 I by Trust 7 Common Stock 2012-12-21 4 A 0 49 0.00 A 955870 D Common Stock 2200 I by Trust 1 Common Stock 2200 I by Trust 2 Common Stock 2200 I by Trust 3 These shares are held in an irrevocable trust for the benefit of the reporting person's child. The reporting person disclaims beneficial ownership of the shares held by his child'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. Represents dividend equivalents paid on vested deferred stock units. These shares are held in a irrevocable trust for the benefit of the reporting person's grandchild. The reporting person disclaims beneficial ownership of the shares held by his grandchild'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. Dannette L. Smith, Attorney-in-Fact for Douglas W. Leatherdale 2012-12-26