1Q24 Investor Update

CAUTIONARY STATEMENT This document is current as of December 31, 2023, except where otherwise stated. The infomation contained in this presentation is provided by Organigram Holdings Inc. ("Organigram" or the "Company") for informational purposes only and does not constitute an offer to issue or arrange to issue, or the solicitation of an offer to issue, securities of Organigram or other financial products. No part of this presentation shall form the basis or be relied upon in connection with any contract, commitment or investment decisions in relation there to. The information contained herein is not investment or financial product advice and is not intended to be used as the basis for making an investment decision. No securities commission or similar regulatory authority in Canada or the United States has reviewed this presentation. No representation or warranty, express or implied, is made as to the fairness, accuracy, completeness or correctness of the information, opinions and conclusions contained in this presentation. This presentation is not meant to provide a complete or comprehensive analysis of Organigram's financial or business prospects. To the maximum extent pemitted by law, none of Organigram nor its directors, officers, employees or agents, nor any other person accepts any liability, including, without limitation, any liability arising out of fault or negligence, for any loss arising from the use of the information contained in this presentation. This presentation contains forward-looking information. Often, but not always, forward-looking information can be identified by the use of words such as "plans", "expects", "estimates", "intends", "anticipates", "believes" or variations of such words and phrases or state that certain actions, events, or results "may", "could", "would", "might" or "will" be taken, occur or be achieved. Forward-looking information involves known and unknown risks, uncertainties and other factors. that may cause actual results, events, performance or achievements of Organigram to differ materially from current expectations or future results, perfomance or achievements expressed or implied by the forward-looking information contained in this presentation. Risks, uncertainties and other factors involved with forward looking information could cause actual events, results, perfomance, prospects and opportunities to differ materially from those expressed or implied by such forward-looking information include factors and risks as disclosed in the Company's most recent annual information fom, ORGANIGRAM management's discussion and analysis and other Company documents filed from time to time on SEDAR+ (see www.sedarplus.com) and filed or fumished to the Securities and Exchange Commission on EDGAR (see www.sec.gov). Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this presentation. Although the Company believes that the assumptions and factors used in preparing the forward-looking infomation in this presentation are reasonable, undue reliance should not be placed on such information and no assurance can be given that such events will occur in the disclosed time frames or at all. The forward-looking information included in this presentation is made as of the date of this presentation and the Company disclaims any intention or obligation, except to the extent required by law, to update or revise any forward-looking in formation, whether as a result of new infomation, future events or otherwise. The descriptions of the tems of the agreements referenced in this release are qualified by the terms of the agreements themselves, copies of which shall be filed under Organigram's profile on SEDAR+ (see www.sedarplus.com) and filed or fumished to the Securities and Exchange Commission on EDGAR (see www.sec.gov). The financial information in this document contains certain financial performance measures that are not defined by and do not have any standardized meaning under IFRS and are used by management to assess the financial and operation al perfomance of the Company. These include adjusted EBITDA and adju ste d gross margin (adjusted gross margin %). The Company believes that the se non- IFRS financial measures, addition to conventional measures prepared in accordance with IFRS, enable investors to evaluate the Company's operating results, underlying perfomance and prospects in a similar manner to the Company's management. As there are no standardized methods of calculating the se non-IFRS measures, the Company's approach may differ from those used by other issuers, and accordingly, the use of these measures may not be directly comparable. Accordingly, the se non-IFRS measures are intended to provide additional infomation and should not be considered in isolation or as a substitute for measures of performance prepared in accordance with IFRS. For further information regarding the se non-IFRS measures, including definitions, and a quantitative reconciliation to the most directly comparable IFRS measure, see the information under the heading "Cautionary Statement Regarding Certain Non- IFRS Measures" and the reconciliation to IFRS measures under the heading "Financial Results and Review of Operations" in the Company's management discussion and analysis of financial conditions and results of operations for the three months ended December 31, 2023 and November 30, 2022 (the "Q1 Fiscal 2024 MD&A") incorporated by reference in this presentation and filed under Organigram's profile of SEDAR+ (see www.sedarplus.com) and filed or fumished to the Securities and Exchange Commission on EDGAR (see www.sec.gov). This presentation does not constitute an offer of shares for sale in the United States or to any person that is, or is acting for the account or benefit of, any U.S. person as defined in Regulation S under the United States Securities Act of 1933, as amended (the "Securities Act") ("U.S. Person"), or in any other jurisdiction in which such an offer would be illegal. Organigram's shares have not been and will not be registered under the Securities Act. We seek safe harbour. This document may not be reproduced, further distributed or published in whole or in part by any other person. This document may only be disse m in a ted or transmitted in to any jurisdiction in compliance with, and subject to, applicable securities laws. Readers are required to ensure their compliance with applicable securities laws. This investor presentation contains information concerning our industry and the markets in which we operate, including our market position and market share, which is based on information from independent third-party sources. Although we believe these sources to be generally reliable, market and industry data is inherently im precise, subject to interpretation and cannot be verified with complete certainty due to limits on the availability and reliability of raw data, the voluntary nature of the data gathering process, and other limitations and uncertainties inherent in any statistical survey or data collection process. We have not independently verified any third-party information contained herein. 2