X0306 4 2020-03-04 0 0001733998 Northwest Natural Holding Co NWN 0001772924 Williams Kathryn M 220 NW SECOND AVENUE PORTLAND OR 97209 0 1 0 1 VP, PA & Sustainability NW Natural Common Stock 2020-03-04 4 F 0 40 65.02 D 234 D Shares were withheld by the issuer to cover withholding taxes on issuance of shares due to vesting of restricted stock units. Organization and Executive Compensation Committee certification of satisfaction of the performance threshold and vesting for these restricted stock units was reported on Form 4 filed on February 28, 2020. Shawn M. Filippi, Attorney-in-Fact 2020-03-06