X0609 4 2026-05-09 0000106535 WEYERHAEUSER CO WY 0001197193 BECKWITT RICHARD false 220 OCCIDENTAL AVE. S SEATTLE WA 98104 true false false false false Common 2026-05-09 4 F false 60.55 23.53 D 24042 D These shares are being withheld to cover taxes for a restricted stock unit vesting. 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, and reflect a cash payment in lieu of fractional shares upon the restricted stock unit vesting. /s/ Jose J. Quintana, Attorney-in-fact for Richard Beckwitt 2026-05-12