WY · Weyerhaeuser Co

These shares (rounded up to the nearest whole share) 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.

These shares (rounded up to the nearest whole share) 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 also reflect the settlement of fractional shares in cash.

The stock equivalents reported herein were acquired pursuant to the Issuer's Fee Deferral Plan for Directors. The Reporting Person elected to defer receipt of 7,832 restricted stock units into an equal number of stock equivalents. The restricted stock units (rounded down to the nearest whole unit) represent the equity portion of the annual retainer fee in the amount of $180,000, with the number of units determined by dividing the dollar amount of the fee by $22.98, the average of the high ($23.40) and low ($22.56) price of the Issuer's common stock on the date of the grant. Additional stock equivalents accrue as and when dividends are paid on the Issuer's common stock. Stock equivalents are paid in an equal number of shares of the Issuer's common stock upon the Reporting Person's termination of service as a director.

Reported holdings include stock equivalents 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.

These shares were granted in lieu of the Reporting Person's annual cash retainer at the Reporting Person's election. The number of shares (rounded down to the nearest whole share) was determined by dividing an amount equal to the portion of the cash retainer specified by the Reporting Person, less applicable tax withholding, by $22.98, the average of the high ($23.40) and low ($22.56) price of the Issuer's common stock on the date of grant.

These shares were granted pursuant to a restricted stock unit award that vests 100% upon the earlier of the one-year anniversary of the grant date or the day prior to the company's next regular meeting of shareholders following 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 $180,000.00, with the number of restricted stock units determined by dividing the dollar amount of the fee by $22.98, the average of the high ($23.40) and low ($22.56) price of the Issuer's common stock on the date of the grant. Additional units accrue as and when dividends are paid on the Issuer's common stock.

These shares were granted in lieu of the Reporting Person's annual cash retainer at the Reporting Person's election. The number of shares (rounded down to the nearest whole share) was determined by dividing an amount equal to the portion of the cash retainer specified by the Reporting Person, less applicable tax withholding, by $22.98, the average of the high ($23.40) and low ($22.56) price of the Issuer's common stock on the date of grant.

The stock equivalents reported herein were acquired pursuant to the Issuer's Fee Deferral Plan for Directors. The Reporting Person elected to defer receipt of 7,832 restricted stock units into an equal number of stock equivalents. The restricted stock units (rounded down to the nearest whole unit) represent the equity portion of the annual retainer fee in the amount of $180,000, with the number of units determined by dividing the dollar amount of the fee by $22.98, the average of the high ($23.40) and low ($22.56) price of the issuer's common stock on the date of the grant. Additional stock equivalents accrue as and when dividends are paid on the Issuer's common stock. Stock equivalents are paid in an equal number of shares of the Issuer's common stock upon the Reporting Person's termination of service as a director.

Reported holdings include stock equivalents 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.

These shares were granted pursuant to a restricted stock unit award that vests 100% upon the earlier of the one-year anniversary of the grant date or the day prior to the company's next regular meeting of shareholders following 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 $180,000.00, with the number of restricted stock units determined by dividing the dollar amount of the fee by $22.98, the average of the high ($23.40) and low ($22.56) price of the Issuer's common stock on the date of the grant. Additional units accrue as and when dividends are paid on the Issuer's common stock.

The stock equivalents reported herein were acquired pursuant to the Issuer's Fee Deferral Plan for Directors. The Reporting Person elected to defer receipt of 7,832 restricted stock units into an equal number of stock equivalents. The restricted stock units (rounded down to the nearest whole unit) represent the equity portion of the annual retainer fee in the amount of $180,000, with the number of units determined by dividing the dollar amount of the fee by $22.98, the average of the high ($23.40) and low ($22.56) price of the Issuer's common stock on the date of the grant. Additional stock equivalents accrue as and when dividends are paid on the Issuer's common stock. Stock equivalents are paid in an equal number of shares of the Issuer's common stock upon the Reporting Person's termination of service as a director.

Reported holdings include stock equivalents 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.

These shares were granted pursuant to a restricted stock unit award that vests 100% upon the earlier of the one-year anniversary of the grant date or the day prior to the company's next regular meeting of shareholders following 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 $180,000.00, with the number of restricted stock units determined by dividing the dollar amount of the fee by $22.98, the average of the high ($23.40) and low ($22.56) price of the Issuer's common stock on the date of the grant. Additional units accrue as and when dividends are paid on the Issuer's common stock.

The stock equivalents reported herein were acquired pursuant to the Issuer's Fee Deferral Plan for Directors. The Reporting Person elected to defer the cash portion of the annual retainer fee in the amount of $120,000.00 into stock equivalents, with the number of stock equivalents determined by dividing the dollar amount of the fee by $22.98, the average of the high ($23.40) and low ($22.56) price of the Issuer's common stock on the date of the grant. Additional stock equivalents accrue as and when dividends are paid on the Issuer's common stock. Stock equivalents are paid in an equal number of shares of the Issuer's common stock upon the Reporting Person's termination of service as a director.

Reported holdings include stock equivalents 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.

The stock equivalents reported herein were acquired pursuant to the Issuer's Fee Deferral Plan for Directors. The Reporting Person elected to defer receipt of 11,531 restricted stock units into an equal number of stock equivalents. The restricted stock units (rounded down to the nearest whole unit) represent the equity portion of the annual retainer fee in the amount of $265,000, with the number of units determined by dividing the dollar amount of the fee by $22.98, the average of the high ($23.40) and low ($22.56) price of the Issuer's common stock on the date of the grant. Additional stock equivalents accrue as and when dividends are paid on the Issuer's common stock. Stock equivalents are paid in an equal number of shares of the Issuer's common stock upon the Reporting Person's termination of service as a director.

Reported holdings include stock equivalents 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.

These shares were granted pursuant to a restricted stock unit award that vests 100% upon the earlier of the one-year anniversary of the grant date or the day prior to the company's next regular meeting of shareholders following 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 $180,000.00, with the number of restricted stock units determined by dividing the dollar amount of the fee by $22.98, the average of the high ($23.40) and low ($22.56) price of the Issuer's common stock on the date of the grant. Additional units accrue as and when dividends are paid on the Issuer's common stock.

These shares were granted pursuant to a restricted stock unit award that vests 100% upon the earlier of the one-year anniversary of the grant date or the day prior to the company's next regular meeting of shareholders following 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 $180,000.00, with the number of restricted stock units determined by dividing the dollar amount of the fee by $22.98, the average of the high ($23.40) and low ($22.56) price of the Issuer's common stock on the date of the grant. Additional units accrue as and when dividends are paid on the Issuer's common stock.

These shares were granted pursuant to a restricted stock unit award that vests 100% upon the earlier of the one-year anniversary of the grant date or the day prior to the company's next regular meeting of shareholders following 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 $180,000.00, with the number of restricted stock units determined by dividing the dollar amount of the fee by $22.98, the average of the high ($23.40) and low ($22.56) price of the Issuer's common stock on the date of the grant. Additional units accrue as and when dividends are paid on the Issuer's common stock.

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.

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.

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.

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.

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.

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.

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.

These shares are being withheld to cover taxes for restricted stock unit vestings. The number of shares reflects the settlement of fractional shares in cash upon full vesting of the 2022 restricted stock unit award.

These shares are being withheld to cover taxes for a performance share unit vesting. The number of shares reflects the settlement of fractional shares in cash upon full vesting of the 2023 performance stock unit award.

These shares are being withheld to cover taxes for restricted stock unit vestings. The number of shares reflects the settlement of fractional shares in cash upon full vesting of the 2022 restricted stock unit award.

These shares are being withheld to cover taxes for restricted stock unit vestings. The number of shares reflects the settlement of fractional shares in cash upon full vesting of the 2022 restricted stock unit award.

These shares are being withheld to cover taxes for restricted stock unit vestings. The number of shares reflects the settlement of fractional shares in cash upon full vesting of the 2022 restricted stock unit award.

These shares are being withheld to cover taxes for a performance share unit vesting. The number of shares reflects the settlement of fractional shares in cash upon full vesting of the 2023 performance stock unit award.

These shares are being withheld to cover taxes for restricted stock unit vestings. The number of shares reflects the settlement of fractional shares in cash upon full vesting of the 2022 restricted stock unit award.

These shares are being withheld to cover taxes for restricted stock unit vestings. The number of shares reflects the settlement of fractional shares in cash upon full vesting of the 2022 restricted stock unit award.

These shares are being withheld to cover taxes for a performance share unit vesting. The number of shares reflects the settlement of fractional shares in cash upon full vesting of the 2023 performance stock unit award.

These shares are being withheld to cover taxes for a performance share unit vesting. The number of shares reflects the settlement of fractional shares in cash upon full vesting of the 2023 performance stock unit award.

These shares are being withheld to cover taxes for a performance share unit vesting. The number of shares reflects the settlement of fractional shares in cash upon full vesting of the 2023 performance stock unit award.

These shares are being withheld to cover taxes for a performance share unit vesting. The number of shares reflects the settlement of fractional shares in cash upon full vesting of the 2023 performance stock unit award.

These shares are being withheld to cover taxes for restricted stock unit vestings. The number of shares reflects the settlement of fractional shares in cash upon full vesting of the 2022 restricted stock unit award.

These shares are being withheld to cover taxes for restricted stock unit vestings. The number of shares reflects the settlement of fractional shares in cash upon full vesting of the 2022 restricted stock unit award.

These shares are being withheld to cover taxes for a performance share unit vesting. The number of shares reflects the settlement of fractional shares in cash upon full vesting of the 2023 performance stock unit award.

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.

This transaction was executed in multiple trades at prices ranging from $25.62 to $25.73. The price reported herein reflects the weighted average purchase price of all the trades. The Reporting Person hereby undertakes to provide upon request to the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased at each separate price.

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.

These shares were granted pursuant to a restricted stock unit award that vests in four equal annual installments beginning on March 1, 2027, and on each March 1st thereafter during the vesting period.

These shares were granted pursuant to a restricted stock unit award that vests in four equal annual installments beginning on March 1, 2027, and on each March 1st thereafter during the vesting period.

These shares were granted pursuant to a restricted stock unit award that vests in four equal annual installments beginning on March 1, 2027, and on each March 1st thereafter during the vesting period.

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.

These shares were granted pursuant to a restricted stock unit award that vests in four equal annual installments beginning on March 1, 2027, and on each March 1st thereafter during the vesting period.

These shares were granted pursuant to a restricted stock unit award that vests in four equal annual installments beginning on March 1, 2027, and on each March 1st thereafter during the vesting period.

These shares were granted pursuant to a restricted stock unit award that vests in four equal annual installments beginning on March 1, 2027, and on each March 1st thereafter during the vesting period.

These shares were granted pursuant to a restricted stock unit award that vests in four equal annual installments beginning on March 1, 2027, and on each March 1st thereafter during the vesting period.

These shares were granted pursuant to a restricted stock unit award that vests in four equal annual installments beginning on March 1, 2027, and on each March 1st thereafter during the vesting period.

Represents shares earned pursuant to a previously granted performance share unit incentive award upon certification by the Issuer's compensation committee of performance measure achievement. In accordance with the award's terms and conditions, these shares will vest on March 1, 2026. The total earned shares reported herein include additional shares accrued during the performance period from dividend reinvestments.

Represents shares earned pursuant to a previously granted performance share unit incentive award upon certification by the Issuer's compensation committee of performance measure achievement. In accordance with the award's terms and conditions, these shares will vest on March 1, 2026. The total earned shares reported herein include additional shares accrued during the performance period from dividend reinvestments.

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.

Represents shares earned pursuant to a previously granted performance share unit incentive award upon certification by the Issuer's compensation committee of performance measure achievement. In accordance with the award's terms and conditions, these shares will vest on March 1, 2026. The total earned shares reported herein include additional shares accrued during the performance period from dividend reinvestments.