Devin W. Stockfish - 15 Dec 2025 Form 4 Insider Report for WEYERHAEUSER CO (WY)

Signature
/s/ Jose J. Quintana, Attorney-in-fact for Devin W. Stockfish
Issuer symbol
WY
Transactions as of
15 Dec 2025
Net transactions value
-$21,783
Form type
4
Filing time
17 Dec 2025, 15:16:41 UTC
Previous filing
23 May 2025
Next filing
17 Feb 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Stockfish Devin W President and CEO, Director 220 OCCIDENTAL AVE SOUTH, SEATTLE /s/ Jose J. Quintana, Attorney-in-fact for Devin W. Stockfish 17 Dec 2025 0001613252

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction WY Common Options Exercise $2,081,841 +90,162 +8.8% $23.09 1,115,023 15 Dec 2025 Direct F1, F2
transaction WY Common Sale $2,103,624 -90,162 -8.1% $23.33 1,024,861 15 Dec 2025 Direct F1, F3

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction WY Stock Option (right to buy) Options Exercise $0 -90,162 -100% $0.000000 0 15 Dec 2025 Common 90,162 $23.09 Direct F1, F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
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.