X0306 4 2017-10-01 0 0001103601 WGL HOLDINGS INC WGL 0001455276 Nee Anthony 101 CONSTITUTION AVENUE, NW WASHINGTON DC 20080 0 1 0 0 Interim Vice President Common Stock 2017-10-01 4 A 0 4176 0.00 A 16037.129 D Common Stock 2017-10-01 4 F 0 1561 84.20 D 14476.129 D This line reports vesting of performance shares under a plan exempt under Rule 16b-3. This line reports withholding of performance shares for taxes under a plan exempt under Rule 16b-3. /s/ Anthony M. Nee, by Leslie T. Thornton, Attorney-in-fact 2017-10-02