Canopy Growth Corp — Additional Proxy Materials (DEFA14A)

You invested in Canopy Growth Corporation and it’s time to vote! You have the right to vote on proposals being presented at the Annual General and Special Meeting. This is an important notice regarding the availability of proxy materials for the shareholder meeting to be held on Friday, September 25, 2026. *Many shareholder meetings have attendance requirements including, but not limited to, the possession of an attendance ticket issued by the entity holding the meeting. Please check the meeting materials for any special requirements for meeting attendance. At the meeting, you will need to request a ballot to vote these shares. Smartphone users Point your camera here and vote without entering a control number G-R6 Get informed before you vote View the Notice, Proxy Statement and Annual Report online OR you can receive a free paper copy of voting material(s) by requesting it prior to September 11, 2026. If you would like to request a copy of the voting material(s), you may (1) visit www.ProxyVote.com, (2) call 1-877-907-7643 or (3) send an email to proxy.request@broadridge.com. If sending an email, please include your control number (indicated below) in the subject line. Unless requested, you will not otherwise receive a paper or email copy. Vote Virtually at the Meeting* Friday, September 25, 2026 1:00 pm EDT www.virtualshareholdermeeting.com/WEED2026 Your Vote Counts! Canopy Growth Corporation 2026 Annual General and Special Meeting Vote by September 23, 2026 1:00 PM EDT 1 OF 2 S91970 81 010 E: C S:3 E:2 1/1 M A:A V: 1 RETURN ADDRESS 123 ANY STREET ANY CITY/PROVINCE A1A 1A1 JOHN A. SAMPLE 123 ANY STREET ANYCITY PR A1A 1A1 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX COMPANY LOGO 1 OF 2 S91970 81 010 E: C S:3 E:2 1/1 M A:A V: 1 SEC BC Registered Non Vote Dir Template 1234 5678 9102 3456

Vote at www.ProxyVote.com THIS IS NOT A VOTABLE BALLOT This is an overview of the proposals being presented at the upcoming shareholder meeting. Please follow the instructions on the reverse side to vote these important matters. Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click “Sign up for E-delivery”. E Control # 2. To appoint MNP LLP as the auditor and independent registered public accounting firm of Canopy Growth Corporation (the “Company”) for the fiscal year ending March 31, 2027 and to authorize the Board or any responsible committee thereof to fix their remuneration. 4. To adopt an ordinary resolution ratifying and approving By-Law No. 2 of the Company, which establishes advance notice and certain other requirements for shareholders of the Company to propose director nominations for shareholder meetings of the Company. For For For You are receiving this communication to advise you that the company is using notice-and-access to deliver proxy materials to its shareholders for the above noted meeting instead of sending you paper copies of the proxy materials. In addition to the options to vote on the reverse side, you can vote by mail by requesting a paper copy of the voting materials using the instructions on the reverse side, which will include a form of proxy. The proxy statement and other relevant proxy materials are available at: https://canopygrowth.com/agm/ and under Canopy Growth Corporation’s SEDAR+ profile at www.sedarplus.ca. PLEASE VIEW THE PROXY STATEMENT AND OTHER RELEVANT PROXY MATERIALS PRIOR TO VOTING. Shareholders with questions about notice-and-access can contact Broadridge by calling 1-844-916-0609. Modern Slavery Report Shareholders may access our modern slavery report for the 2026 calendar year, which is being prepared pursuant to the Fighting Against Forced Labour and Child Labour in Supply Chains Act (Canada), at: https://canopygrowth.com/wp-content/uploads/2026/08/2026_03_31_CGC_Modern-SlaveryReport-2026.pdf 3. To adopt a special resolution approving the amendment to the articles of the Company to provide that: (i) the authorized capital of the Company be altered by consolidating all of the issued and outstanding common shares (“Shares”) and exchangeable shares on the basis of a ratio to be determined by the Board, in its sole discretion, within a range of one post-consolidation share for every five to fifteen outstanding pre-consolidation shares at any time prior to September 25, 2027 (or the date that is 12 months immediately following the date that any adjourned or postponed Meeting is reconvened or held, as the case may be), with the exact ratio to be set at a whole number within this range by the Board in its sole discretion and applicable for both the Shares and exchangeable shares; and (ii) any fractional shares arising from the consolidation of the Shares and exchangeable shares will be deemed to have been tendered by its registered owner to the Company for cancellation for no consideration. Vote Recommendation Voting Items Election of Board of Directors Nominees: 1A. Election of Director: David Lazzarato 1B. Election of Director: Theresa Yanofsky 1C. Election of Director: Luc Mongeau 1D. Election of Director: Shan Atkins 1E. Election of Director: Joseph Bayern For For For For For 5. To adopt an ordinary resolution approving all unallocated entitlements under the Company’s Omnibus Incentive Plan. For 6. To adopt an advisory (non-binding) resolution approving the compensation of the Company’s “named executive officers,” as described in the proxy statement. For 7. Advisory (non-binding) vote on the frequency of future advisory (non-binding) votes on the compensation of the Company’s “named executive officers”. 1 Yr SHARE CLASSES REPRESENTED FOR VOTING CANOPY GROWTH CORPORATION - COMMON 123456789.1234 1.00000 322,224 148,294 1234 5678 9012 3456