UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the Securities

Exchange Act of 1934 (Amendment No. )

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The Greenbrier Companies, Inc.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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THE GREENBRIER COMPANIES, INC. *** Exercise Your Right to Vote *** Important Notice Regarding the Availability of Proxy Materials for the Shareholder Meeting to Be Held on January 6, 2021. THE GREENBRIER COMPANIES, INC. ONE CENTERPOINTE DRIVE, STE 200 LAKE OSWEGO, OR 97035 See the reverse side of this notice to obtain proxy materials and voting instructions. D24906-P44927 You are receiving this communication because you hold shares in the company named above. This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side). We encourage you to access and review all of the important information contained in the proxy materials before voting. Meeting Information Meeting Type: Annual Meeting For holders as of: November 5, 2020 Date: January 6, 2021 Time: 2:00 PM, PST Location: Meeting live via the Internet-please visit www.virtualshareholdermeeting.com/GBX2021. The company will be hosting the meeting live via the Internet this year. To attend the meeting via the Internet please visit www.virtualshareholdermeeting.com/GBX2021 and be sure to have the information that is printed in the box marked by the arrow XXXX XXXX XXXX XXXX (located on the following page).

D24907-P44927 Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before December 23, 2020 to facilitate timely delivery. How to View Online: Have the information that is printed in the box marked by the arrow XXXX XXXX XXXX XXXX (located on the following page) and visit: www.proxyvote.com. How to Request and Receive a PAPER or E-MAIL Copy: If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request: 1) BY INTERNET: www.proxyvote.com 2) BY TELEPHONE: 1-800-579-1639 3) BY E-MAIL*: sendmaterial@proxyvote.com * If requesting materials by e-mail, please send a blank e-mail with the information that is printed in the box marked by the arrow XXXX XXXX XXXX XXXX (located on the following page) in the subject line. NOTICE AND PROXY STATEMENT ANNUAL REPORT/10-K Proxy Materials Available to VIEW or RECEIVE: Vote By Internet: Before The Meeting: Go to www.proxyvote.com. Have the information that is printed in the box marked by the arrow XXXX XXXX XXXX XXXX (located on the following page) available and follow the instructions. During The Meeting: Go to www.virtualshareholdermeeting.com/GBX2021. Have the information that is printed in the box marked by the arrow XXXX XXXX XXXX XXXX (located on the following page) available and follow the instructions. Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card. Before You Vote How to Access the Proxy Materials How To Vote Please Choose One of the Following Voting Methods

Voting Items 1c. Kelly M. Williams 1a. William A. Furman 1b. Charles J. Swindells 3. Approval of the Company’s 2021 Stock Incentive Plan. 2. Advisory approval of the compensation of the Company’s named executive officers. 5. A shareholder proposal entitled “Independent Board Chair”. 4. Ratification of the appointment of KPMG LLP as the Company’s independent auditors for 2021. 1. Election of Directors The Board of Directors recommend a vote FOR all the nominees listed and FOR Proposals 2, 3 and 4. The Board of Directors recommend a vote AGAINST Proposal 5: NOTE: Such other business as may properly come before the meeting or any adjournment thereof. D24908-P44927

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