X0306 4 2022-02-10 0 0000106535 WEYERHAEUSER CO WY 0001601170 Merle Denise M 220 OCCIDENTAL AVE SOUTH SEATTLE WA 98104 0 1 0 0 Senior Vice President Common 2022-02-10 4 A 0 16603 0.00 A 122863.857 D Common 2022-02-10 4 A 0 26901 0.00 A 149764.857 D Common 2022-02-10 4 F 0 10586 42.57 D 139178.857 D Common 2022-02-11 4 F 0 2055 41.82 D 137123.857 D Share Equivalents 0.00 2022-02-10 4 A 0 2530.89 38.85 A Common 2530.89 11345.7171 D These shares were granted pursuant to a restricted stock unit award that vests in four equal annual installments beginning on March 1, 2023, and on each March 1st thereafter during the vesting period. Represents shares acquired pursuant to a previously granted performance share unit award. Reported shares include accrued and reinvested dividends. These shares are being withheld to cover taxes for a performance share unit vesting. These shares are being withheld to cover taxes for a restricted stock unit vesting. The share equivalents reported herein were acquired pursuant to the Issuer's deferred compensation plan and are to be settled 100% in cash after the reporting person's termination of employment. Each share equivalent represents the right to receive a cash value of one share of the Issuer's common stock as calculated pursuant to the provisions of the plan. Additional share equivalents accrue as and when dividends are paid on the Issuer's common stock. Reported holdings include shares acquired since the Reporting Person's last filing on Form 4 from dividend reinvestment transactions exempt from Section 16 of the Securities Exchange Act of 1934, as amended. /s/ Jose J. Quintana, Attorney-in-fact 2022-02-14