WEYERHAEUSER CO — Director's Dealing 2025

Dec 17, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: WEYERHAEUSER CO (WY)
CIK: 0000106535
Period of Report: 2025-12-15

Reporting Person: Stockfish Devin W (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-12-15	Common	M	90162	$23.09	Acquired	1115023.3064	Direct
2025-12-15	Common	S	90162	$23.3316	Disposed	1024861.3064	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-12-15	Stock Option (right to buy)	$23.09	M	90162	Disposed	2026-02-09	Common (90162)	Direct

Footnotes

F1: The exercise of stock options and sale of underlying shares of common stock by the Reporting Person reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 22, 2024.

F2: 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.

F3: This transaction was executed in multiple trades at prices ranging from $23.290 to $23.545. The price reported herein reflects the weighted average sale 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 sold at each separate price.

F4: The option is fully vested.