X0306 4 2021-05-14 0 0000106535 WEYERHAEUSER CO WY 0001165970 Lewis Sara Grootwassink 220 OCCIDENTAL AVE SOUTH SEATTLE WA 98104 1 0 0 0 Common 2021-05-14 4 A 0 3900 0.00 A 21378 D Common 7987 I By Trust Common 45 I By IRA These shares were granted pursuant to a restricted stock unit award that vests 100% one year after the grant date. These shares (rounded down to the nearest whole share) represent the equity portion of the annual retainer fee in the amount of $150,000.00, with the number of restricted stock units determined by dividing the dollar amount of the fee by $38.455, the average of the high ($38.75) and low ($38.16) price of the issuer's common stock on the date of the grant. /s/ Jose J. Quintana, Attorney-in-fact 2021-05-18