Note Regarding Forward-Looking Statements

This report contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. We intend the forward-looking statements contained in this report to be covered by the safe harbor provisions of such Acts. All statements other than statements of historical fact in this report or referred to or incorporated by reference into this report are "forward-looking statements" for purposes of these sections. These statements include, among other things, statements related to the Jazz transaction and the anticipated timing for the completion thereof, the expected impact of COVID-19 on our business, any predictions, opinions, expectations, plans, strategies, objectives and any statements of assumptions underlying any of the foregoing relating to the company's current and future business and operations, including, but not limited to, financial matters, development activities, clinical trials and regulatory matters, manufacturing and supply operations, and product sales and demand. The words "believe," "may," "will," "estimate," "continue," "anticipate," "intend," "expect" and similar words are intended to identify estimates and forward-looking statements. Estimates and forward-looking statements speak only at the date they were made, and we undertake no obligation to update or to review any estimate and/or forward-looking statement because of new information, future events or other factors. Statements of past performance, efforts, or results about which inferences or assumptions may be made can also be forward-looking statements and are not indicative of future performance or results; these statements can be identified by the use of words such as "preliminary," "initial," or other forms of these words or similar words or expressions or the negative thereof. These forward-looking statements are subject to substantial risks and uncertainties that could cause our results or future business, financial condition, results of operations or performance to differ materially from our historical results or experiences or those expressed or implied in any forward-looking statements contained in this report. These risks and uncertainties include, but are not limited to: risks and uncertainties related to the sanction of the High Court of Justice of England and Wales and satisfaction of the other closing conditions to consummate Jazz transaction; the occurrence of any event, change or other circumstance that could give rise to the termination of the definitive transaction agreement relating to the Jazz transaction; those associated with the COVID-19 pandemic, clinical trial or commercial results or new product approvals and adoption; unpredictability of obtaining regulatory approval and successfully launching products; competitive dynamics; changes to reimbursement for the company's products; the company's success in developing new products and avoiding manufacturing and quality issues; the impact of currency exchange rates; the timing or results of research and development and clinical trials; unanticipated actions by the U.S. Food and Drug Administration and other regulatory agencies; unexpected litigation impacts or expenses; and other risks detailed under "Risk Factors" in this quarterly report on Form 10-Q and in our annual report on Form 10-K for the year ended December 31, 2020, as such risks and uncertainties may be amended, supplemented or superseded from time to time by subsequent reports on Forms 10-Q and 8-K we file with the Securities and Exchange Commission from time to time. These forward-looking statements speak only as of the date on which they are made and we do not undertake any obligation to update any forward-looking statement to reflect events or circumstances after the date of the statement. If we do update or correct one or more of these statements, investors and others should not conclude that we will make additional updates or corrections.

Overview

We are a biopharmaceutical company focused on discovering, developing and commercializing novel therapeutics from our proprietary cannabinoid product platform in a broad range of disease areas. In over 20 years of operations, we have established a world leading position in the science, development, and commercialization of plant-derived cannabinoid therapeutics through our proven drug discovery and development processes, our intellectual property portfolio, and regulatory, manufacturing, and commercial expertise.

On February 3, 2021, we entered into a transaction agreement (the Transaction Agreement) with Jazz Pharmaceuticals Public Limited Company, a public limited company incorporated in Ireland (Jazz), and Jazz Pharmaceuticals UK Holdings Limited, a private limited company incorporated in England and Wales and a wholly owned subsidiary of Jazz (Bidco), under which Bidco has agreed to acquire the entire issued and to be issued share capital of the Company by means of a court-sanctioned scheme of arrangement under Part 26 of the U.K. Companies Act 2006, subject to the conditions described therein (the Scheme of Arrangement and such acquisition, the "Transaction"). On April 23, 2021, we held a meeting of shareholders convened with the permission of the High Court of Justice of England and Wales (the Court Meeting) and a general meeting of shareholders (the General Meeting and, together with the Court Meeting, the Shareholder Meetings), in each case in connection with the Transaction. At the Shareholder Meetings, the proposals required to be approved by the Company's shareholders in



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order to complete the Transaction were each approved. Completion of the Transaction remains subject to the sanction by the High Court of Justice of England and Wales (the Court) and other customary closing conditions. The Court hearing to sanction the Transaction is currently scheduled for May 5, 2021, and the completion of the Transaction is expected to occur shortly thereafter.

Our lead cannabinoid product is Epidiolex®, a pharmaceutical formulation comprising highly purified plant-derived cannabidiol (CBD), for which we retain global commercial rights. We initially launched Epidiolex in the U.S. in November 2018 for the treatment of seizures associated with Lennox-Gastaut syndrome (LGS) and Dravet syndrome for patients two years of age and older. In July 2020, the U.S. Food and Drug Administration (FDA) expanded the approval of Epidiolex, adding a new indication of seizures associated with Tuberous Sclerosis Complex (TSC). The FDA also approved the expansion of all existing indications, LGS, Dravet syndrome and TSC, to patients one year of age and older. LGS and Dravet syndrome are severe childhood-onset, drug-resistant epilepsy syndromes. TSC is a rare genetic disorder that causes non-malignant tumors to form in many different organs that affects approximately 50,000 individuals in the United States and one million worldwide. We have received Orphan Drug Designation from the FDA and the Committee for Orphan Medical Products (COMP) for TSC (we previously received the same designations for LGS and Dravet syndrome).

Epidyolex® (the trade name in Europe for Epidiolex) was approved in September 2019 by the European Commission (EC) for use as adjunctive therapy of seizures associated with LGS or Dravet syndrome, in conjunction with clobazam, for patients two years of age and older. In April 2021, we announced that the EC has approved Epidyolex as an adjunctive treatment of seizures associated with TSC, for patients two years of age and older. We have launched Epidyolex in Germany and the U.K. and are planning launches in France, Italy, and Spain. In September 2020, Epidyolex was approved in Australia.

We continue to develop Epidiolex for additional indications. Within the field of epilepsy, we are committed to expanding the potential for Epidiolex and plan to commence an additional clinical program in 2021.

We have a deep pipeline of additional cannabinoid product candidates that includes compounds in Phase 1, Phase 2, and Phase 3 trials. Our most advanced pipeline asset is nabiximols, for which we have commenced two out of five clinical trials for the treatment of spasticity due to multiple sclerosis. The other three are expected to commence in 2021. We believe that any one of these studies could enable a new drug application (NDA) submission with the FDA. We anticipate commercializing nabiximols in the U.S. using our in-house commercial organization. Nabiximols is already approved in over 25 countries outside the U.S. for the treatment of spasticity due to multiple sclerosis under the brand name Sativex®. We are advancing plans to commence an additional clinical program for nabiximols in spasticity due to spinal cord injury in 2021. We also plan on evaluating nabiximols for post-traumatic stress disorder, and the timing for a clinical trial in this condition will be assessed during 2021.

In addition to nabiximols, our pipeline includes cannabinoid product candidates for schizophrenia, autism spectrum disorder, various potential targets within neuropsychiatry, and Neonatal Hypoxic Ischemic Encephalopathy. Clinical trials for each of these indications are ongoing.

In addition to seven years of orphan exclusivity, we seek to protect Epidiolex through the expansion of our patent portfolio. Our patent portfolio relating to the use of CBD in the treatment of epileptic encephalopathies includes 91 distinct patent families that are either granted or filed. Most of the patent families in this portfolio claim the use of CBD in the treatment of particular childhood epilepsy syndromes, seizure sub-types and interactions with other concomitantly dosed anti-seizure drugs. To date, we have obtained 91 Epidiolex patent families and 157 total patent families. Some of these patents are directly aligned with the Epidiolex label, and we have listed 15 patents in the Approved Drug Products with Therapeutic Equivalence Evaluations (commonly known as the Orange Book), and received notices of allowance for a further two patents from the USPTO). These patents have expiry to 2035 and include claims for the use of CBD for the treatment of convulsive, drop and atonic seizures associated both LGS and Dravet syndrome, an oral composition of CBD, as well as the use of CBD with clobazam, and the teaching that dose adjustment may be needed when concomitantly prescribed. We filed patent applications in the U.S. and many jurisdictions worldwide based on promising data that we believe demonstrates that Epidiolex is more efficacious than synthetic CBD at the same concentration in a mouse model of seizures. We filed patent applications in the U.S. and many jurisdictions worldwide based on promising data that we believe demonstrates that Epidiolex is more efficacious than synthetic CBD at the same concentration in a mouse model of seizures. Unlike synthetic CBD,



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Epidiolex comprises up to 2% of other cannabinoids. It would appear from this early data that the presence of these cannabinoids, albeit in small amounts, provides an additional benefit over CBD alone in an animal model of epilepsy. This patent, if granted, will have an expiry date of 2039. We continue to identify novel findings and submit patent applications resulting from the Epidiolex development program and we expect additional grants from these applications.

Impact of COVID-19 on our Business

In March 2020, the World Health Organization categorized the coronavirus disease 2019 (COVID-19) as a pandemic. The COVID-19 pandemic has presented a substantial public health and economic challenge around the world and is affecting our employees, patients, communities and business operations, as well as the U.S. economy and U.S. and global financial markets. The full extent to which the COVID-19 pandemic will directly or indirectly impact our business, results of operations and financial condition will depend on future developments that are highly uncertain and cannot be accurately predicted, including new information that may emerge concerning COVID-19, the actions taken to contain or treat it, its impact and the economic impact on local, regional, national and international markets.

In March 2020, we suspended in-person interactions by our customer-facing personnel in healthcare settings and adjusted to virtually supporting healthcare professionals and patient care. We have since returned to limited in-person field contact where local conditions and clinic policies allow. We have seen and may continue to see a negative impact on growth of our product net sales from fewer patients visiting their healthcare provider to initiate, change or receive therapy.

Throughout the COVID-19 pandemic, we have been able to continue operating our manufacturing facilities at normal levels through the implementation of strict safety measures. While we currently do not anticipate any interruptions in our manufacturing process, it is possible that the COVID-19 pandemic and response efforts may have an impact in the future on our and/or our third-party suppliers' ability to manufacture our products.

While we are continuing to initiate and execute clinical trials at sites across the globe, COVID-19 precautions continue to directly and indirectly impact the timeline for some of our planned clinical trials and other research and development activities.

In the U.S. and the U.K., our office-based employees have been working from home since early March 2020, while ensuring essential staffing levels in our operations remain in place, including maintaining key personnel in our laboratories and manufacturing facilities.

For additional information on the various risks posed by the COVID-19 pandemic, refer to Part I, Item 1A "Risk Factors" of our Annual Report on Form 10-K for the year ended December 31, 2020 report.

Critical Accounting Estimates

Our condensed consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States (U.S. GAAP). These accounting principles require us to make certain estimates, judgments and assumptions that affect the reported amounts of assets and liabilities as of the date of the financial statements, as well as the reported amounts of revenues and expenses during the periods presented. We believe that the estimates, judgments and assumptions are reasonable based upon information available to us at the time that these estimates, judgments and assumptions are made. To the extent there are material differences between these estimates, judgments or assumptions and actual results, our financial statements will be affected. Historically, revisions to our estimates have not resulted in a material change to our financial statements.

For a discussion of our critical accounting estimates, please read Part II, Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations in our Annual Report on Form 10-K for the year ended December 31, 2020. There have been no material changes to the critical accounting estimates previously disclosed in our Annual Report on Form 10-K for the year ended December 31, 2020.

Recent Accounting Pronouncements



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The adoption of new accounting standards is discussed in Note 2 to our interim unaudited condensed consolidated financial statements.

Results of Operations

The following table summarizes the results of our operations for the three months ended March 31, 2021 and 2020:





                                                 Three Months Ended
                                                      March 31,
                                                2021            2020          Increase/Decrease
                                                               (in thousands)
Consolidated Statement of Operations Data:
Revenues:
Product net sales                            $   152,443     $   120,532     $            31,911
Other revenue                                         23             101                     (78 )
Total revenues                                   152,466         120,633                  31,833
Operating expenses:
Cost of product sales                             11,807          10,769                   1,038
Research and development                          60,634          45,874                  14,760
Selling, general and administrative              101,052          71,183                  29,869
Total operating expenses                         173,493         127,826                  45,667
Loss from operations                             (21,027 )        (7,193 )               (13,834 )
Interest income                                      146           1,269                  (1,123 )
Interest expense                                    (286 )          (284 )                    (2 )
Foreign exchange loss                               (573 )           (20 )                  (553 )
Loss before income taxes                         (21,740 )        (6,228 )               (15,512 )
Income tax (benefit) expense                      (2,063 )         1,737                  (3,800 )
Net loss                                     $   (19,677 )   $    (7,965 )   $           (11,712 )




Product net sales


Epidiolex, our treatment for certain severe childhood-onset, drug-resistant epilepsy syndromes, was launched in the United States in November 2018 and in certain European markets in late 2019. We also sell Epidiolex through certain early access programs outside of the United States. Sativex, our treatment for spasticity due to multiple sclerosis, is sold outside of the United States, primarily through license agreements with commercial partners. In March 2020, we reacquired the rights to sell Sativex in the U.K. and began to record direct sales in that market.

Product net sales for the three months ended March 31, 2021 consists of $148.2 million in net sales of Epidiolex and $4.2 million in net sales of Sativex. Product net sales for the three months ended March 31, 2020 consists of $116.1 million in net sales of Epidiolex and $4.4 million in net sales of Sativex. The $31.9 million increase in product net sales for the three months ended March 31, 2021 compared to the same period in the prior year was primarily due to the growth of U.S. Epidiolex revenue and the launch of Epidiolex in certain European markets.





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Cost of product sales

Cost of sales increased $1.0 million, or 9%, in the three months ended March 31, 2021 to $11.8 million, or 8% of product net sales, compared to $10.8 million, or 9% of product net sales in the three months ended March 31, 2020. The increase in cost of sales in dollars is primarily due to an increase of product net sales. The decrease in cost of sales as a percentage of product net sales is primarily due to the impact of volume-based efficiencies on our inventory production costs.

Research and development expenses

We believe that our future revenues and cash flows are most likely to be affected by the successful development and approval of our significant late-stage research and development candidates. As of March 31, 2021, we consider Nabiximols for spasticity associated with MS to be our most significant late-stage product candidate.

In addition, our pipeline includes cannabinoid product candidates for schizophrenia, autism spectrum disorder, various potential targets within neuropsychiatry, and Neonatal Hypoxic Ischemic Encephalopathy.

In July 2020, the FDA expanded the approval of Epidiolex, adding a new indication of seizures associated with TSC and expanding existing indications to patients one year of age and older.

In April 2021, we announced that the EC has approved Epidyolex® as an adjunctive treatment of seizures associated with TSC, for patients two years of age and older.

In December 2017, we terminated our license agreement with Otsuka and we have reacquired full ownership of the development and commercialization rights to nabiximols in the United States. We expect to commence five clinical trials of nabiximols for the treatment of spasticity due to multiple sclerosis, two of which have commenced and three of which are expected to commence in the first half of 2021.

Research and development expenses consist of internal and external costs to conduct our pre-clinical studies and clinical trials, payroll costs associated with employing our team of research and development staff, share-based payment expenses, property costs associated with leasing laboratory and office space to accommodate our research teams, costs of growing botanical raw material, costs of processing product for clinical trials, costs of consumables used in the conduct of our in-house research programs, payments for research work conducted by sub-contractors and sponsorship of work by our network of academic collaborative research scientists, costs associated with safety studies and costs associated with the development of Epidiolex, Sativex, and our other pipeline product candidates. Research and development expense is presented net of reimbursements from reimbursable tax and expenditure credits from the U.K. government.





We track all research and development expenditures against detailed budgets but
do not seek to allocate all research and development costs by individual
project. The components of R&D expense for the three months ended March 31, 2021
and 2020 are as follows:



                                             Three Months Ended
                                                  March 31,
                                              2021          2020
                                               (in thousands)
External clinical trial expense
Epidiolex                                  $    3,412     $  5,913
Nabiximols                                      4,061        1,413
Other programs                                  5,606        3,625

Total external clinical trial expense 13,079 10,951 Research and development tax and expense


  credits                                      (1,065 )       (816 )

Other internal research and development 48,620 35,739 Total research and development expense $ 60,634 $ 45,874






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Research and development expenses increased $14.7 million, or 32%, to $60.6 million for the three months ended March 31, 2021 compared to $45.9 million for the same period in 2020, primarily due to an increase in internal costs and external clinical trial expenses for nabiximols, as well as increased costs for early stage development programs, partially offset by a reduction in clinical trial expenses for Epidiolex.

Sales, general and administrative expenses

Sales, general and administrative, or SG&A, expenses consist primarily of salaries and benefits related to our executive, commercial, and corporate support functions, expenses associated with our commercial activities, and other general administration expenses.

SG&A expenses increased $29.9 million, or 42%, to $101.1 million for the three months ended March 31, 2021 compared to $71.2 million for the same period in 2020. The increase in SG&A expenses in 2021 was primarily due to legal and other costs related to the Jazz transaction, an increase in employee-related expenses driven by the build-out of our commercial functions in Europe, and an increase in all of our corporate support functions, including information technology infrastructure. These increases were partially offset by a decrease in travel related expenses due to the impact of COVID-19.

Interest income

Interest income decreased $1.2 million for the three months ended March 31, 2021 to $0.1 million compared to interest income of $1.3 million for the same period in 2020. Due to uncertainties in the financial markets related to COVID-19, we transitioned a large portion of our cash equivalent balances to lower interest earning U.S. government securities money market funds from relatively higher interest rate bearing commercial money market funds in early 2020.

Interest expense

Interest expense remained consistent for the three months ended March 31, 2021 and 2020. Interest expense is primarily related to our finance lease liabilities.

Foreign currency exchange (loss) gain

Foreign currency exchange loss was $0.6 million for the three month period ended March 31, 2021 compared to foreign currency exchange loss of less than $0.1 million for the three months ended March 31, 2020. Foreign currency exchange gains and losses are driven primarily by cash balances, accounts payable and intercompany balances denominated in a currency other than the transacting entity's functional currency and changes in value of foreign exchange derivative instruments. Our primary foreign currency exposure is the exchange rate between the British pound and the U.S. dollar.

Income tax (benefit) expense

The provision for income taxes is determined using an annual effective tax rate. The effective tax rate may be subject to fluctuations during the year as new information is obtained, which may affect the assumptions used to estimate the annual effective tax rate, including factors such as expected utilization of research and development tax credits, valuation allowances against deferred tax assets, the recognition or derecognition of tax benefits related to uncertain tax positions, and changes in or the interpretation of tax laws in jurisdictions where we conduct business. Also, excess tax benefits and tax deficiencies related to future stock option exercises could result in fluctuations in our effective tax rate in future periods.

Income taxes arise in the United States due to our U.S. subsidiary generating taxable profits. We incur losses in the United Kingdom. Income tax benefit for the three months ended March 31, 2021 was $2.1 million compared to an income tax expense of $1.7 million for the three months ended March 31, 2020. The increase in the income tax benefit was primarily related to the income tax effects of shared based payments.



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Liquidity and Capital Resources

In recent years, we have incurred significant net losses and negative cash flows from operations. We have largely funded our operations from issuances of equity securities, government expense and tax credits, and milestone payments from our out-license partners. Our cash flows may fluctuate, are difficult to forecast and will depend on many factors, including:



     •    the timing of achievement of future regulatory approvals and commercial
          launches in the United States and Europe;


     •    the extent to which we seek to retain development rights to our pipeline
          of new product candidates or whether we seek to out-license them to a
          partner who will fund future research and development expenditure in
          return for a right to share in future commercial revenue;


     •    the extent of success in our early pre-clinical and clinical stage
          research programs which will determine the amount of funding required to
          further the development of our product candidates;


  • the terms and timing of new strategic collaborations;


     •    the number and characteristics of the product candidates that we seek to
          develop;


     •    the outcome, timing and cost of regulatory approvals of our product
          candidates;


     •    the costs involved in filing and prosecuting patent applications and
          enforcing and defending potential patent claims; and


     •    the costs of hiring additional skilled employees to support our
          continued growth.

We believe that our cash and cash equivalents as of March 31, 2021 of $458.1 million will be sufficient to fund our operations, including currently anticipated research and development activities and planned capital expenditures, for the foreseeable future, including for at least the next 12 months.

Cash Flows

The following table summarizes the results of our cash flows for the three months ended March 31, 2021 and 2020:





                                               Three Months Ended
                                                    March 31,
                                               2021          2020

Net cash used in operating activities $ (11,722 ) $ (18,598 ) Net cash used in investing activities (10,825 ) (13,300 ) Net cash used in financing activities

           (5,606 )        (213 )

Cash and cash equivalents at end of period $ 458,101 $ 500,935






Operating activities

As of March 31, 2021, we had cash and cash equivalents totaling $458.1 million compared to $500.9 million as of March 31, 2020. Net cash used in operating activities decreased by $6.9 million to $11.7 million for the three months ended March 31, 2021 compared to $18.6 million for the three months ended March 31, 2020. The decrease in cash used in operating activities is primarily attributable to a $31.9 million increase in net product sales, partially offset by a $1.0 million increase in cost of product sales, a $29.9 million increase in SG&A expenses, $14.8 million increase in research and development spend, and a $10.5 million decrease in cash used to fund changes in net operating assets and liabilities.

Investing activities

Net cash used in investing activities was $10.8 million for the three months ended March 31, 2021 compared to net cash used in investing activities of $13.3 million for the three months ended March 31, 2020. The cash used in



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investing activities for the three months ended as of March 31, 2021 included $10.8 million in capital expenditures, primarily due to the continued expansion of our manufacturing facilities. The cash used in investing operations in the three months ended March 31, 2020 included $6.9 million in capital expenditures, primarily due to the continued expansion of our manufacturing facilities, and $6.4 million used to reacquire the rights to commercialize Sativex in the U.K. from Bayer

Financing activities

Net cash used in financing activities was $5.6 million for the three months ended March 31, 2021 compared to cash used in financing activities of $0.2 million during the three months ended March 31, 2020. The increase in cash used in financing activities is primarily attributable to payments made in connection with common stock withheld for employee tax obligations partially offset by an increase in proceeds received from the exercise of stock options

Contractual Obligations

There have been no significant changes to the disclosure of payments we have committed to make under our contractual obligations as summarized in our Annual Report on Form 10-K for the twelve months ended December 31, 2020, in the section titled "Management's Discussion and Analysis of Financial Condition and Results of Operations" under the caption "Tabular Disclosure of Contractual Obligations."

Off Balance Sheet Arrangements

We do not have any off-balance sheet arrangements.

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