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    SEC Form 10-Q filed by Mereo BioPharma Group plc

    5/13/25 7:57:24 AM ET
    $MREO
    Biotechnology: Pharmaceutical Preparations
    Health Care
    Get the next $MREO alert in real time by email
    10-Q
    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    Table of Contents

     

    UNITED STATES

    SECURITIES AND EXCHANGE COMMISSION

    WASHINGTON, D.C. 20549

    FORM 10-Q

     

    ☒

    QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

     

    For the quarterly period ended March 31, 2025

    OR

     

    ☐

    TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

     

    For the transition period from to

    Commission File Number 001-38452

    MEREO BIOPHARMA GROUP PLC

    (Exact name of Registrant as specified in its charter)

     

    England and Wales

     

    Not Applicable

    (State or other jurisdiction of incorporation or organization)

     

    (I.R.S. Employer Identification No.)

     

     

     

    One Cavendish Place, 4th Floor

     

     

    London, W1G 0QF

     

     

    United Kingdom

     

    +44-333-023-7300

    (Address of principal executive offices)

     

    (Registrant’s telephone number, including area code)

     

    Securities registered pursuant to Section 12(b) of the Act:

     

     

    Title of each class

    Trading Symbol(s)

    Name of each exchange on which registered

    American Depositary Shares, each representing five ordinary shares, nominal value of £0.003 per share

     

    Ordinary Shares, nominal value of £0.003 per share

     

    MREO

     

    The Nasdaq Stock Market LLC

     

     

    The Nasdaq Stock Market LLC*

     

    * Not for trading, but only in connection with the registration of American Depositary Shares representing such Ordinary Shares pursuant to the requirements of the U.S. Securities and Exchange Commission.

    Securities registered pursuant to Section 12(g) of the Act:

    None

    Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days ☒ Yes  No

     

    Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). ☒ Yes  No

     

    Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.
     

    Large accelerated filer 

    Accelerated filer 

    Non-accelerated filer ☒

    Smaller reporting company ☒

     

     

     

    Emerging growth company 

     

    If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

     

    Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).  Yes ☒ No

     

    As of May 12, 2025 the number of outstanding ordinary shares, par value £0.003 per share, of the registrant was 795,001,444.

     

     

     


    Table of Contents

    Table of Contents

     

     

     

     

    Page

     

     

     

     

    PART I

     

     

     

     

     

     

     

    Item 1.

    Financial Statements

     

    2

     

     

     

     

    Item 2.

    Management’s Discussion and Analysis of Financial Condition and Results of Operations

     

    18

     

     

     

     

    Item 3.

    Quantitative and Qualitative Disclosures About Market Risk

     

    24

     

     

     

     

    Item 4.

    Controls and Procedures

     

    24

     

     

     

     

    PART II

     

     

     

     

     

     

     

    Item1.

    Legal Proceedings

     

    25

     

     

     

     

    Item 1A.

    Risk Factors

     

    25

     

     

     

     

    Item 2.

    Unregistered Sales of Equity Securities and Use of Proceeds

     

    25

     

     

     

     

    Item 3.

    Defaults Upon Senior Securities

     

    25

     

     

     

     

    Item 4.

    Mine Safety Disclosures

     

    25

     

     

     

     

    Item 5.

    Other Information

     

    25

     

     

     

     

    Item 6.

    Exhibits

     

    26

     

     

     

     

    Signatures

     

    27

     

     


    Table of Contents

     

    GENERAL INFORMATION

    In this Quarterly Report on Form 10‑Q (“Quarterly Report”), “Mereo,” the “Group,” the “Company,” “we,” “us” and “our” refer to Mereo BioPharma Group plc and its consolidated subsidiaries, except where the context otherwise requires.

    INFORMATION REGARDING FORWARD-LOOKING STATEMENTS

    This Quarterly Report contains forward-looking statements that involve risks and uncertainties, as well as assumptions that, if they never materialize or prove incorrect, could cause our results to differ materially from those expressed or implied by such forward-looking statements. We make such forward-looking statements pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995 and other federal securities laws. All statements other than statements of historical facts contained in this Quarterly Report are forward-looking statements. In some cases, you can identify forward-looking statements by words such as “believe,” “may,” “will,” “estimate,” “continue,” “anticipate,” “intend,” “expect” or the negative of these words or other comparable terminology.

    Any forward-looking statements in this Quarterly Report reflect our current views with respect to future events or to our future financial performance and involve known and unknown risks, uncertainties and other factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by these forward-looking statements. Factors that may cause actual results to differ materially from current expectations include, among other things, those listed under Part I, Item 1A. Risk Factors of our most recent Annual Report on Form 10-K for the year ended December 31, 2024, filed with the SEC on March 26, 2025 (the "2024 Annual Report"). Given these uncertainties, you should not place undue reliance on these forward-looking statements. Except as required by law, we assume no obligation to update or revise these forward-looking statements for any reason, even if new information becomes available in the future.

    This Quarterly Report also contains estimates, projections and other information concerning our industry, our business, and the markets for certain diseases, including data regarding the estimated size of those markets, and the incidence and prevalence of certain medical conditions. Information that is based on estimates, forecasts, projections, market research or similar methodologies is inherently subject to uncertainties and actual events or circumstances may differ materially from events and circumstances reflected in this information. Unless otherwise expressly stated, we obtained this industry, business, market and other data from reports, research surveys, studies and similar data prepared by third parties, industry, medical and general publications, government data and similar sources.

    1


    Table of Contents

     

    PART I – FINANCIAL INFORMATION

     

    Item 1. Financial Statements.

     

    MEREO BIOPHARMA GROUP PLC

    CONDENSED CONSOLIDATED BALANCE SHEETS

    (In thousands, except share and per share amounts)

    (Unaudited)

     

     

    March 31,

     

     

    December 31,

     

     

    2025

     

     

    2024

     

    Assets

     

     

     

     

     

     

    Current assets:

     

     

     

     

     

     

    Cash and cash equivalents

     

    $

    62,483

     

     

    $

    69,802

     

    Prepaid expenses and other current assets

     

     

    2,519

     

     

     

    2,175

     

    Research and development incentives receivables

     

     

    1,897

     

     

     

    2,786

     

    Total current assets

     

     

    66,899

     

     

     

    74,763

     

    Property and equipment, net

     

     

    247

     

     

     

    257

     

    Operating lease right-of-use assets, net

     

     

    622

     

     

     

    727

     

    Intangible assets, net

     

     

    554

     

     

     

    643

     

    Total assets

     

    $

    68,322

     

     

    $

    76,390

     

     

     

     

     

     

     

     

    Liabilities

     

     

     

     

     

     

    Current liabilities:

     

     

     

     

     

     

    Accounts payable

     

    $

    2,924

     

     

    $

    2,440

     

    Accrued expenses

     

     

    2,932

     

     

     

    4,071

     

    Convertible loan notes – current

     

     

    —

     

     

     

    5,535

     

    Operating lease liabilities – current

     

     

    747

     

     

     

    707

     

    Other current liabilities

     

     

    894

     

     

     

    1,095

     

    Total current liabilities

     

     

    7,497

     

     

     

    13,848

     

    Warrant liabilities – non-current

     

     

    419

     

     

     

    821

     

    Operating lease liabilities – non-current

     

     

    —

     

     

     

    187

     

    Other non-current liabilities

     

     

    325

     

     

     

    565

     

    Total liabilities

     

    $

    8,241

     

     

    $

    15,421

     

    Commitments and contingencies (Note 15)

     

     

     

     

     

     

     

     

     

     

     

     

     

    Shareholders’ Equity

     

     

     

     

     

     

    Ordinary shares, par value £0.003 per share; 795,001,444 shares issued at March 31, 2025 (December 31, 2024: 775,728,034).

     

    $

    3,132

     

     

    $

    3,059

     

    Additional paid-in capital

     

     

    544,266

     

     

     

    539,642

     

    Accumulated deficit

     

     

    (472,027

    )

     

     

    (462,883

    )

    Accumulated other comprehensive loss

     

     

    (15,290

    )

     

     

    (18,849

    )

    Total shareholders’ equity

     

     

    60,081

     

     

     

    60,969

     

    Total liabilities and shareholders’ equity

     

    $

    68,322

     

     

    $

    76,390

     

     

     

    The accompanying notes form an integral part of these condensed consolidated financial statements.

    2


    Table of Contents

     

    MEREO BIOPHARMA GROUP PLC

    CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS

    (In thousands, except share and per share amounts)

    (Unaudited)

     

     

     

    Three Months Ended March 31,

     

     

    2025

     

     

    2024

     

    Operating expenses:

     

     

     

     

     

     

    Research and development

     

    $

    (3,930

    )

     

    $

    (3,994

    )

    General and administrative

     

     

    (7,272

    )

     

     

    (5,906

    )

    Loss from operations

     

     

    (11,202

    )

     

     

    (9,900

    )

    Other income/(expenses)

     

     

     

     

     

     

    Interest income

     

     

    659

     

     

     

    617

     

    Interest expense

     

     

    (180

    )

     

     

    (310

    )

    Changes in the fair value of warrants

     

     

    416

     

     

     

    (448

    )

    Foreign currency transaction (loss)/gain, net

     

     

    (2,765

    )

     

     

    613

     

    Benefit from research and development tax credit

     

     

    185

     

     

     

    477

     

    Net loss before income tax

     

     

    (12,887

    )

     

     

    (8,951

    )

    Income tax benefit

     

     

    —

     

     

     

    —

     

    Net loss

     

    $

    (12,887

    )

     

    $

    (8,951

    )

     

     

     

     

     

     

     

    Loss per share – basic and diluted

     

    $

    (0.02

    )

     

    $

    (0.01

    )

    Weighted average shares outstanding – basic and diluted

     

     

    784,279,387

     

     

     

    700,263,490

     

     

     

     

     

     

     

     

    Net loss

     

    $

    (12,887

    )

     

    $

    (8,951

    )

    Other comprehensive income/(loss) – Foreign currency translation adjustments, net of tax

     

     

    3,559

     

     

     

    (798

    )

    Total comprehensive loss

     

    $

    (9,328

    )

     

    $

    (9,749

    )

     

    The accompanying notes form an integral part of these condensed consolidated financial statements.

    3


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    MEREO BIOPHARMA GROUP PLC

    CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

    (In thousands)

    (Unaudited)

     

     

    Three Months Ended March 31,

     

     

    2025

     

     

    2024

     

    Cash flows from operating activities

     

     

     

     

     

     

    Net loss

     

    $

    (12,887

    )

     

    $

    (8,951

    )

    Adjustments to reconcile net loss to net cash used in operating activities:

     

     

     

     

     

     

    Share-based compensation

     

     

    2,278

     

     

     

    2,050

     

    Depreciation

     

     

    38

     

     

     

    41

     

    Amortization of intangible assets

     

     

    106

     

     

     

    108

     

    Amortization of operating lease right-of-use assets

     

     

    126

     

     

     

    126

     

    Change in fair value of warrants

     

     

    (416

    )

     

     

    448

     

    Non-cash interest expense

     

     

    175

     

     

     

    306

     

    Foreign currency transaction loss/(gain)

     

     

    2,765

     

     

     

    (613

    )

    Changes in operating assets and liabilities:

     

     

     

     

     

     

    Prepaid expenses and other current assets

     

     

    (268

    )

     

     

    1,939

     

    Research and development incentives receivable

     

     

    952

     

     

     

    (477

    )

    Accounts payable

     

     

    362

     

     

     

    127

     

    Accrued expenses and other liabilities

     

     

    (1,390

    )

     

     

    (2,939

    )

    Operating lease liabilities

     

     

    (170

    )

     

     

    (156

    )

    Net cash used in operating activities

     

     

    (8,329

    )

     

     

    (7,991

    )

     

     

     

     

     

     

     

    Cash flows from investing activities

     

     

     

     

     

     

    Purchase of intangible assets

     

     

    (300

    )

     

     

    (700

    )

    Purchase of property and equipment

     

     

    (20

    )

     

     

    —

     

    Net cash used in investing activities

     

     

    (320

    )

     

     

    (700

    )

     

     

     

     

     

     

     

    Cash flows from financing activities

     

     

     

     

     

     

    Proceeds from exercise of warrants

     

     

    487

     

     

     

    —

     

    Transaction costs on issuance of ordinary shares

     

     

    (65

    )

     

     

    —

     

    Net cash provided by financing activities

     

     

    422

     

     

     

    —

     

     

     

     

     

     

     

     

    Decrease in cash and cash equivalents

     

     

    (8,227

    )

     

     

    (8,691

    )

    Cash and cash equivalents at January 1,

     

     

    69,802

     

     

     

    57,421

     

    Effect of exchange rate changes

     

     

    908

     

     

     

    (70

    )

    Cash and cash equivalents at March 31,

     

    $

    62,483

     

     

    $

    48,660

     

     

     

     

     

     

     

     

    Supplemental disclosure

     

     

     

     

     

     

    Cash paid for interest

     

     

    7

     

     

     

    4

     

     

     

    The accompanying notes form an integral part of these condensed consolidated financial statements.

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    MEREO BIOPHARMA GROUP PLC

    CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY

    (In thousands, except share amounts)

    (Unaudited)

     

     

    Ordinary shares

     

     

    Treasury shares

     

     

    Additional
    paid-in

     

     

    Accumulated
    other
    comprehensive

     

     

    Accumulated

     

     

    Total
    shareholders’

     

     

    Shares

     

     

    Cost

     

     

    Shares

     

     

    Cost

     

     

    capital

     

     

    (loss)/income

     

     

    deficit

     

     

    equity

     

     Balance, December 31, 2024

     

     

    775,728,034

     

     

    $

    3,059

     

     

     

    —

     

     

    $

    —

     

     

    $

    539,642

     

     

    $

    (18,849

    )

     

    $

    (462,883

    )

     

    $

    60,969

     

    Net loss

     

     

    —

     

     

     

    —

     

     

     

    —

     

     

     

    —

     

     

     

    —

     

     

     

    —

     

     

     

    (12,887

    )

     

     

    (12,887

    )

    Foreign currency translation adjustments

     

     

    —

     

     

     

    —

     

     

     

    —

     

     

     

    —

     

     

     

    —

     

     

     

    3,559

     

     

     

    —

     

     

     

    3,559

     

    Share-based compensation

     

     

    —

     

     

     

    —

     

     

     

    —

     

     

     

    —

     

     

     

    2,278

     

     

     

    —

     

     

     

    —

     

     

     

    2,278

     

    Delivery of shares on vesting of restricted stock units

     

     

    718,350

     

     

     

    3

     

     

     

    —

     

     

     

    —

     

     

     

    (3

    )

     

     

    —

     

     

     

    —

     

     

     

    —

     

    Transaction costs on issuance of shares

     

     

     

     

     

    —

     

     

     

    —

     

     

     

    —

     

     

     

    (65

    )

     

     

    —

     

     

     

    —

     

     

     

    (65

    )

    Conversion of convertible loan notes

     

     

    17,105,450

     

     

     

    64

     

     

     

    —

     

     

     

    —

     

     

     

    5,676

     

     

     

    —

     

     

     

    —

     

     

     

    5,740

     

    Exercise of warrants

     

     

    1,449,610

     

     

     

    6

     

     

     

    —

     

     

     

    —

     

     

     

    481

     

     

     

    —

     

     

     

    —

     

     

     

    487

     

    Transfer between reserves

     

     

    —

     

     

     

    —

     

     

     

    —

     

     

     

    —

     

     

     

    (3,743

    )

     

     

    —

     

     

     

    3,743

     

     

     

    —

     

     Balance, March 31, 2025

     

     

    795,001,444

     

     

    $

    3,132

     

     

     

    —

     

     

     

    —

     

     

    $

    544,266

     

     

    $

    (15,290

    )

     

    $

    (472,027

    )

     

    $

    60,081

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     Balance, December 31, 2023

     

     

    701,217,089

     

     

    $

    2,775

     

     

     

    923,400

     

     

    $

    (1,230

    )

     

    $

    486,107

     

     

    $

    (17,485

    )

     

    $

    (419,630

    )

     

    $

    50,537

     

    Net loss

     

     

    —

     

     

     

    —

     

     

     

    —

     

     

     

    —

     

     

     

    —

     

     

     

    —

     

     

     

    (8,951

    )

     

     

    (8,951

    )

    Foreign currency translation adjustments

     

     

    —

     

     

     

    —

     

     

     

    —

     

     

     

    —

     

     

     

    —

     

     

     

    (798

    )

     

     

    —

     

     

     

    (798

    )

    Share-based compensation

     

     

    —

     

     

     

    —

     

     

     

    —

     

     

     

    —

     

     

     

    2,050

     

     

     

    —

     

     

     

    —

     

     

     

    2,050

     

    Exercise of share options

     

     

    132,345

     

     

     

    —

     

     

     

    (210,485

    )

     

     

    280

     

     

     

    (280

    )

     

     

    —

     

     

     

    —

     

     

     

    —

     

    Delivery of shares on vesting of restricted stock units

     

     

    —

     

     

     

    —

     

     

     

    (712,915

    )

     

     

    950

     

     

     

    (950

    )

     

     

    —

     

     

     

    —

     

     

     

    —

     

     Balance, March 31, 2024

     

     

    701,349,434

     

     

    $

    2,775

     

     

     

    —

     

     

    $

    —

     

     

    $

    486,927

     

     

    $

    (18,283

    )

     

    $

    (428,581

    )

     

    $

    42,838

     

     

    The accompanying notes form an integral part of these condensed consolidated financial statements.

    5


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    MEREO BIOPHARMA GROUP PLC

    NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

    (Unaudited)

    1. Nature of business

    Mereo BioPharma Group plc (the “Company” or “Mereo”) is a United Kingdom (“U.K.”) based biopharmaceutical company focused on the development of innovative therapeutics for rare diseases. The Company has developed a portfolio of late-stage clinical product candidates, and its two rare disease product candidates are setrusumab for the treatment of osteogenesis imperfecta (“OI”) and alvelestat primarily for the treatment of severe alpha-1 antitrypsin deficiency-associated lung disease (“AATD-LD”).

    The Company is a public limited company incorporated and domiciled in the U.K., and registered in England, with shares publicly traded on the Nasdaq Capital Market via American Depositary Shares (“ADSs”) under the ticker symbol “MREO”. The Company’s registered office is located at Fourth Floor, 1 Cavendish Place, London, W1G 0QF, United Kingdom.

    2. Basis of presentation and summary of significant accounting policies

    Basis of presentation

    The condensed consolidated financial statements of the Company and its subsidiaries and other financial information included in this quarterly report on Form 10-Q ("Quarterly Report") are unaudited, have been prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) and are presented in U.S. dollars. All intercompany accounts and transactions between the Company and its subsidiaries have been eliminated on consolidation.

    The unaudited condensed consolidated financial statements presented in this Quarterly Report should be read in conjunction with the consolidated financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K filed with the SEC on March 26, 2025 (the “2024 Annual Report”). The condensed consolidated balance sheet as of December 31, 2024 was derived from audited consolidated financial statements included in the 2024 Annual Report but does not include all disclosures required by U.S. GAAP. The Company’s significant accounting policies are described in Note 2 to those consolidated financial statements.

    Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted from these interim financial statements. However, these interim financial statements include all adjustments which are, in the opinion of management, necessary to fairly state the Company's financial position as of March 31, 2025, the results of operations for the three months ended March 31, 2025 and 2024 and cash flows for the three months ended March 31, 2025 and 2024. The interim results are not necessarily indicative of results to be expected for the full year.

    Going concern

    The Company has prepared its condensed consolidated financial statements on the basis that it will continue as a going concern. The Company is subject to risks common to companies in the biotechnology industry, including but not limited to, risks of delays in initiating or continuing research programs and clinical trials, risks of failure of preclinical studies and clinical trials, the need to obtain marketing approval for any drug product candidate that it may identify and develop, the need to successfully commercialize and gain market acceptance of its product candidates, if approved, dependence on key personnel and collaboration partners, protection of proprietary technology, compliance with government regulations, development by competitors of technological innovations, and the ability to secure additional capital to fund operations. Product candidates currently under development will require significant additional research and development efforts, including pre-clinical and clinical testing and regulatory approval prior to commercialization. Even if the Company’s research and development efforts are successful, it is uncertain when, if ever, the Company will realize significant revenue from product sales.

    The Company has historically been loss making, anticipates that it will continue to incur losses for the foreseeable future, and had an accumulated deficit of $472.0 million as of March 31, 2025. The Company has funded these losses through a combination of public equity financings, private equity and debt financings and various license and collaboration agreements, and it expects it will continue to do so until such time as it can generate significant revenue from product sales, or other commercial revenues, if ever, or through licensing and/or collaboration agreements for its rare disease or oncology product candidates. Although management continues to pursue these plans, there is no assurance that the Company will be successful in obtaining sufficient funding on terms acceptable to the Company to fund continuing operations, if at all.

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    As of March 31, 2025, the Company had cash and cash equivalents of $62.5 million. The Company expects that its cash and cash equivalents as of March 31, 2025 will be sufficient to fund its operations and capital expenditure requirements for at least twelve months from the date of filing of this Quarterly Report.

    Use of estimates

    The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of income and expenses during the reporting periods. There are no estimates and assumptions made in the consolidated financial statements that are considered to be critical. Estimates are periodically reviewed in light of changes in circumstances, facts and experience. Changes in estimates are recorded in the period in which they become known. Actual results could differ from those estimates.

    3. Recent accounting pronouncements

    There have been no recent accounting pronouncements, changes in accounting pronouncements or recently adopted accounting guidance other than those previously included in the 2024 Annual Report that are of significance or potential significance to the Company. The Company is continuing to evaluate the impact of the recently issued pronouncements that are effective in future periods that were discussed in its 2024 Annual Report.

    4. Fair value measurement

    The Company’s financial instruments consist of cash and cash equivalents, accounts payable, certain accrued expenses, contingent consideration, warrant liabilities and the liability component of the convertible loan notes and other financing arrangements. Cash, cash equivalents, accounts payable and accrued expenses are initially recorded and subsequently measured at cost, which is considered to approximate their fair value due to the short-term nature of such financial instruments.

    The following table summarizes the Company’s financial assets and liabilities measured at fair value on a recurring basis and classified under the appropriate level of the fair value hierarchy:

     

     

    As of March 31, 2025

     

     

    Total

     

     

    Level 1

     

     

    Level 2

     

     

    Level 3

     

     

    ($'000)

     

     

    ($'000)

     

     

    ($'000)

     

     

    ($'000)

     

    Financial liabilities

     

     

     

     

     

     

     

     

     

     

     

     

    Warrant liabilities

     

     

    419

     

     

     

    —

     

     

     

    419

     

     

     

    —

     

     

     

    As of December 31, 2024

     

     

    Total

     

     

    Level 1

     

     

    Level 2

     

     

    Level 3

     

     

    ($'000)

     

     

    ($'000)

     

     

    ($'000)

     

     

    ($'000)

     

    Financial liabilities

     

     

     

     

     

     

     

     

     

     

     

     

    Warrant liabilities

     

     

    821

     

     

     

    —

     

     

     

    821

     

     

     

    —

     

    There were no transfers of instruments between any levels of the fair value hierarchy during the three months ended March 31, 2025 and 2024.

     

    Warrant liabilities

     

    At March 31, 2025 and December 31, 2024, warrant liabilities solely related to those warrants outstanding to the former lenders of the Company as described in Note 11.

    7


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    5. Prepaid expenses and other current assets

    Prepaid expenses and other current assets consisted of the following:

     

     

    March 31,

     

     

    December 31,

     

     

    2025

     

     

    2024

     

     

    ($'000)

     

     

    ($'000)

     

    VAT receivable

     

    $

    501

     

     

    $

    464

     

    Prepaid research and development expenses

     

     

    260

     

     

     

    201

     

    Security deposits

     

     

    380

     

     

     

    378

     

    Prepaid insurance premiums

     

     

    527

     

     

     

    1,003

     

    Prepaid general and administrative expenses

     

     

    851

     

     

     

    129

     

    Total

     

    $

    2,519

     

     

    $

    2,175

     

     

    6. Property and equipment, net

    Property and equipment, net consists of the following:

     

     

    March 31,

     

     

    December 31,

     

     

    2025

     

     

    2024

     

     

    ($'000)

     

     

    ($'000)

     

    Leasehold improvements

     

    $

    735

     

     

    $

    712

     

    Office equipment

     

     

    203

     

     

     

    196

     

    IT equipment

     

     

    325

     

     

     

    298

     

    Property and equipment, at cost

     

     

    1,263

     

     

     

    1,206

     

    Less: accumulated depreciation

     

     

    (1,016

    )

     

     

    (949

    )

    Property and equipment, net

     

    $

    247

     

     

    $

    257

     

     

    Depreciation expense was less than $0.1 million for both the three months ended March 31, 2025 and 2024.

    7. Leases

    In August 2015, the Company entered into a lease agreement under which it leased office space located on the fourth floor of One Cavendish Place, London, with a lease term ending in August 2025. In June 2021, the Company entered into a new lease agreement to lease additional office space located on the fifth floor of that building for a lease period ending in June 2026. At the same time, the Company entered into a revisionary lease to extend the term for the original fourth floor lease to be coterminous with the fifth floor, ending in June 2026.

    The total lease expense included in the statements of operations and comprehensive loss was $0.2 million for both the three months ended March 31, 2025 and 2024. There were no material variable lease costs.

     

     

    As of March 31,

     

     

    2025

     

     

    2024

     

    Operating leases

     

     

     

     

     

     

    Weighted-average remaining contractual lease term (years)

     

     

    1.20

     

     

     

    2.20

     

    Weighted average discount rate

     

     

    10.0

    %

     

     

    10.0

    %

     

     

    Three Months Ended March 31,

     

     

    2025

     

     

    2024

     

     

    ($'000)

     

     

    ($'000)

     

    Cash paid for amounts included in the measurement of lease liabilities:

     

     

     

     

     

     

    Operating cash flows from operating leases

     

    $

    192

     

     

    $

    194

     

     

    The following table summarizes the maturities of the Company’s operating lease liabilities as of March 31, 2025:

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    Table of Contents

     

     

     

    As of March 31, 2025

     

     

    ($'000)

     

    Maturity analysis of the operating lease liabilities for the years ending December 31,

     

     

     

    2025

     

    $

    593

     

    2026

     

     

    197

     

    Total undiscounted payments

     

     

    790

     

    Less: Present value discount

     

     

    (43

    )

    Lease liability

     

    $

    747

     

    Lease liability – current

     

    $

    747

     

    Lease liability – non-current

     

    $

    —

     

     

    8. Other current liabilities

    Other current liabilities consist of the following:

     

     

    March 31,

     

     

    December 31,

     

     

    2025

     

     

    2024

     

     

    ($'000)

     

     

    ($'000)

     

    Social security and other taxes

     

    $

    285

     

     

    $

    503

     

    Deferred consideration liability

     

     

    267

     

     

     

    296

     

    Equity issuance costs payable

     

     

    237

     

     

     

    235

     

    Other current liabilities

     

     

    105

     

     

     

    61

     

    Total

     

    $

    894

     

     

    $

    1,095

     

     

    9. Accrued expenses

    Accrued expenses consist of the following:

     

     

    March 31,

     

     

    December 31,

     

     

    2025

     

     

    2024

     

     

    ($'000)

     

     

    ($'000)

     

    Accrued research and development costs

     

    $

    1,449

     

     

    $

    948

     

    Accrued legal fees

     

     

    274

     

     

     

    181

     

    Accrued bonus

     

     

    616

     

     

     

    2,001

     

    Accrued audit fees

     

     

    257

     

     

     

    388

     

    Accrued professional fees

     

     

    108

     

     

     

    158

     

    Accrued local taxes

     

     

    85

     

     

     

    267

     

    Other accrued expenses

     

     

    143

     

     

     

    128

     

    Total

     

    $

    2,932

     

     

    $

    4,071

     

     

    10. Convertible loan notes and equity classified warrants

    Novartis Loan Note

    On February 10, 2020, the Company entered into a convertible equity financing with Novartis Pharma (AG) (“Novartis”), which it amended in February 2023 to extend the maturity date and increase the interest rate, under which Novartis purchased a £3.8 million ($5.0 million) convertible loan note (the “Novartis Loan Note”). Following the 2023 amendment, the Novartis Loan Note was convertible at the discretion of the holder, at a fixed price of £0.265 per ordinary share and bore interest at 9% per annum with a maturity date of February 10, 2025.

    In addition, the Company also issued warrants over 1,449,610 ordinary shares to Novartis which were exercisable until February 2025 at an exercise price of £0.265 per ordinary share (the "2020 Novartis Warrants"). In connection with the amendments

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    to the Novartis Loan Note, in February 2023 the Company issued warrants over a further 2,000,000 ordinary shares (the "2023 Novartis Warrants"). The 2023 Novartis Warrants are exercisable until February 2028 at an exercise price of £0.265 per ordinary share. Both tranches of warrants were recognized separately as equity instruments.

    On February 7, 2025, the Company received a conversion notice and subsequently issued and allotted 17,105,450 ordinary shares (equivalent to 3,421,090 ADSs) on the non-cash conversion of the outstanding principal and accrued interest of the Novartis Loan Note.

    As of December 31, 2024, the net carrying amount of the liability component of the convertible debt instrument was $5.5 million. On conversion, the Company derecognized the carrying value of the Novartis Loan Note of $5.7 million and recognized the issuance of the shares at their par value within ordinary share capital and the excess amount of the conversion price over the par value within additional paid-in capital. In addition, the amount that represented the value of the conversion features of the Novartis Loan Note presented in additional paid-in capital at inception of $3.4 million was transferred to accumulated deficit upon conversion.

    The Company recognized interest expense of $0.2 million and $0.3 million in relation to the Novartis Loan Note for the three months ended March 31, 2025, and 2024, respectively. The effective interest rate applied to the liability portion of the Novartis Loan Note in both the three months ended March 31, 2025 and 2024 was 27.8%.

    In addition, on February 7, 2025, Novartis exercised the 2020 Novartis Warrants and the Company subsequently issued and allotted 1,449,610 ordinary shares (equivalent to 289,922 ADSs) upon receipt of $0.5 million in satisfaction of the subscription price of £0.265 per ordinary share. Additional paid-in capital of $0.3 million, representing the surplus of previously recognized amounts exceeding the par value of ordinary shares, was transferred to accumulated deficit.

     

    11. Warrant liability

     

     

    Warrant liabilities

     

     

     

    2025

     

     

    2024

     

     

    ($'000)

     

     

    ($'000)

     

    At January 1

     

    $

    821

     

     

    $

    412

     

    Changes in fair value during the period

     

     

    (416

    )

     

     

    448

     

    Foreign exchange

     

     

    14

     

     

     

    (5

    )

    At March 31

     

    $

    419

     

     

    $

    855

     

    As of March 31, 2025, the former lenders of the Company have warrants outstanding to purchase a total of 1,243,908 ordinary shares at an exercise price of £2.95 per share, exercisable until August 2027 and a total of 1,243,908 ordinary shares at an exercise price of $0.4144 per share, exercisable until dates between August 2027 and October 2028. These warrants outstanding are equivalent to 0.3% of the issued ordinary share capital of the Company as of March 31, 2025 and 0.4% as of December 31, 2024. There were no warrants exercised during either the three months ended March 31, 2025 or 2024.

    The fair value of each warrant is estimated using the Black-Scholes option pricing model using the following weighted average assumptions:

     

     

    March 31,

     

     

    December 31,

     

     

    2025

     

     

    2024

     

    Market value of ADSs ($)

     

    $

    2.25

     

     

    $

    3.50

     

    Risk-free interest rate (%)

     

     

    4.15

    %

     

     

    4.15

    %

    Expected life (years)

     

     

    2.5

     

     

     

    2.8

     

    Expected volatility (%)

     

     

    96.52

    %

     

     

    95.00

    %

    Expected dividends (%)

     

     

    0.00

    %

     

     

    0.00

    %

     

    12. Shareholders’ Equity

    Ordinary Shares

     

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    Number of
    ordinary shares

     

     

    Cost
    ($'000)

     

    At January 1, 2024

     

     

    701,217,089

     

     

    $

    2,775

     

    Exercise of share options

     

     

    132,345

     

     

     

    —

     

    At March 31, 2024

     

     

    701,349,434

     

     

    $

    2,775

     

     

     

     

     

     

     

     

    At December 31, 2024

     

     

    775,728,034

     

     

    $

    3,059

     

    Vesting of RSUs

     

     

    718,350

     

     

     

    3

     

    Conversion of convertible loan notes

     

     

    17,105,450

     

     

     

    64

     

    Exercise of warrants

     

     

    1,449,610

     

     

     

    6

     

    At March 31, 2025

     

     

    795,001,444

     

     

    $

    3,132

     

     

    In February 2025, the Company issued and allotted 17,105,450 ordinary shares (equivalent to 3,421,090 ADSs) on the non-cash conversion of the outstanding principal and accrued interest of the Novartis Loan Note.

     

    In February 2025, the Company issued and allotted 1,449,610 ordinary shares (equivalent to 289,922 ADSs) upon exercise of the 2020 Novartis Warrants.

     

    During the three months ended March 31, 2025, 718,350 ordinary shares were issued due to the vesting of RSUs.

    13. Share based compensation

    The Company currently grants equity awards under the Mereo 2019 Equity Incentive Plan (the “2019 EIP”) and the 2019 Non-Employee Equity Incentive Plan (the “2019 NED EIP”). There are also still outstanding awards under two previous plans, the Mereo BioPharma Group Limited Share Option Plan and the Mereo Share Option Plan (together the “Previous Share Option Plans”), however no further grants are envisioned.

    The total number of ADSs available for issue under the 2019 EIP and 2019 NED EIP was 9.0 million as of March 31, 2025.

    The expense for share-based compensation arises solely in respect of awards made under these two active plans as follows:

     

     

    Three Months Ended
    March 31,

     

     

    2025

     

     

    2024

     

     

    ($'000)

     

     

    ($'000)

     

    2019 EIP

     

    $

    1,654

     

     

    $

    1,459

     

    2019 NED EIP

     

     

    624

     

     

     

    591

     

    Total

     

    $

    2,278

     

     

    $

    2,050

     

     

    As of March 31, 2025, the total unrecognized compensation cost related to outstanding share awards was $9.8 million, which the Company expects to recognize over a weighted-average period of 1.7 years.

     

    2019 EIP

    The Company has awarded the following instruments under the 2019 EIP:

    Market Value Options (“Options”)

    A summary of the Company’s Option activity and related information under the 2019 EIP for the three months ended March 31, 2025 is as follows; all outstanding Options are expected to vest:

     

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    Table of Contents

     

     

    Number of
    options
    (ADSs)

     

     

    Weighted
    Average
    Exercise
    Price ($)

     

     

    Aggregate
    intrinsic
    value
    ($'000)

     

     At December 31, 2024

     

    $

    11,271,023

     

     

    $

    2.02

     

     

    $

    15,578

     

    Granted

     

     

    2,333,100

     

     

     

    2.91

     

     

     

    —

     

    Forfeited

     

    $

    (1,465

    )

     

    $

    4.06

     

     

    $

    —

     

    At March 31, 2025

     

     

    13,602,658

     

     

    $

    2.17

     

     

    $

    6,960

     

    Vested

     

    $

    6,924,589

     

     

    $

    2.00

     

     

    $

    4,099

     

     

    The weighted average fair value per share of Options vesting during the three months ended March 31, 2025 and 2024 was $2.17 and $1.43, respectively.

    The weighted average contractual life of Options outstanding as of March 31, 2025 and December 31, 2024 was 7.8 years and 7.6 years, respectively. The weighted average contractual life for vested Options was both 6.8 years as of March 31, 2025 and December 31, 2024.

    Where presented, the aggregate intrinsic value is calculated as the difference between the exercise price of the underlying awards and the quoted market price of the Company’s ADSs for the Options that were in-the-money.

    The fair value of each Option is estimated on the date of grant using the Black-Scholes option pricing model using the following weighted average assumptions:

     

     

    Three Months Ended
    March 31,

     

     

    2025

     

     

    2024

     

    Risk-free interest rate (%)

     

     

    4.49

    %

     

     

    4.01

    %

    Expected life (years)

     

     

    6.25

     

     

     

    6.25

     

    Expected volatility (%)

     

     

    104.31

    %

     

     

    90.80

    %

    Expected dividends (%)

     

     

    0.00

    %

     

     

    0.00

    %

     

    The expected volatility assumption is calculated by reference to the historical volatility of the Company's ADSs for the three months ended March 31, 2025 and an appropriate peer group of companies for the three months ended March 31, 2024. The grant date fair value is recognized over the requisite service period using the accelerated graded-vesting attribution method.

    Restricted Stock Units (“RSUs”)

    A summary of the Company’s RSU activity and related information under the 2019 EIP is as follows; all outstanding RSUs are expected to vest:

     

     

    Number of
    RSUs
    (ADSs)

     

     

    Weighted
    Average
    Grant
    Date Fair
    Value ($)

     

    At December 31, 2024

     

     

    441,247

     

     

    $

    2.10

     

    Granted

     

     

    265,080

     

     

     

    2.91

     

    Vested

     

     

    (143,670

    )

     

     

    2.12

     

    At March 31, 2025

     

     

    562,657

     

     

    $

    2.48

     

     

    At March 31, 2025, the weighted average remaining period of RSUs outstanding was 2.5 years.

    Where presented, the aggregate intrinsic value is calculated as the quoted market price of the Company’s ADSs. The fair value of each RSU was calculated by reference to the value of the shares awarded. The grant date fair value is recognized over the vesting period using the accelerated graded-vesting attribution method.

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    2019 NED EIP

    The Company has awarded the following instruments under the 2019 NED EIP:

    Options

    A summary of the Company’s Option activity and related information under the 2019 NED EIP for the three months ended March 31, 2025 is as follows; all outstanding Options are expected to vest:

     

     

    Number of
    options
    (ADSs)

     

     

    Weighted
    Average
    Exercise
    Price ($)

     

     

    Aggregate
    intrinsic
    value
    ($'000)

     

    At December 31, 2024

     

     

    1,542,087

     

     

    $

    2.16

     

     

    $

    2,123

     

    Granted

     

     

    440,000

     

     

     

    3.16

     

     

     

    —

     

    At March 31, 2025

     

     

    1,982,087

     

     

    $

    2.38

     

     

    $

    978

     

    Vested

     

     

    1,578,759

     

     

     

    2.38

     

     

     

    978

     

     

    The weighted average fair value per share of Options vesting during the three months ended March 31, 2025 and 2024 was $2.44 and $1.42, respectively.

    The weighted average contractual life of Options outstanding as of March 31, 2025 and December 31, 2024 was 7.3 years and 7.5 years, respectively. The weighted average contractual life for vested Options as of March 31, 2025 and December 31, 2024 was 7.8 years and 7.4 years, respectively.

    Where presented, the aggregate intrinsic value is calculated as the difference between the exercise price of the underlying awards and the quoted market price of the Company’s ADSs for the Options that were in-the-money.

    The fair value of each Option is estimated on the date of grant using the Black-Scholes option pricing model using the following weighted average assumptions:

     

     

    Three Months Ended
    March 31,

     

     

    2025

     

     

    2024

     

    Risk-free interest rate (%)

     

     

    4.25

    %

     

     

    4.08

    %

    Expected life (years)

     

     

    5.25

     

     

     

    5.25

     

    Expected volatility (%)

     

     

    104.39

    %

     

     

    90.67

    %

    Expected dividends (%)

     

     

    0.00

    %

     

     

    0.00

    %

     

    The expected volatility assumption is calculated by reference to the historical volatility of the Company's ADSs for the three months ended March 31, 2025 and an appropriate peer group of companies for the three months ended March 31, 2024. The grant date fair value is recognized over the vesting period using the accelerated graded-vesting attribution method.

    Deferred Restricted Stock Units (“DRSUs”)

    A summary of the Company’s DRSU activity and related information under the 2019 NED EIP for the three months ended March 31, 2025 is as follows; all outstanding DRSUs are expected to vest:

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    Table of Contents

     

     

     

    Number of
    DRSUs
    (ADSs)

     

     

    Weighted
    Average
    Grant
    Date Fair
    Value ($)

     

    At December 31, 2024

     

     

    855,375

     

     

    $

    1.43

     

    Granted

     

     

    124,233

     

     

     

    3.16

     

    At March 31, 2025

     

     

    979,608

     

     

    $

    1.65

     

    Vested

     

     

    872,655

     

     

     

    1.48

     

     

    Where presented, the aggregate intrinsic value is calculated as the quoted market price of the Company’s ADSs. The fair value of each DRSU was calculated by reference to the value of the shares awarded. The grant date fair value is recognized over the vesting period using the accelerated graded-vesting attribution method.

    Previous Share Option Plans

    Mereo previously granted Options to employees under the Previous Share Options Plans. No awards have been granted under either of these plans following the introduction of the 2019 EIP and the 2019 NED EIP, no further awards are envisioned.

    As of March 31, 2025 and December 31, 2024, options over 1,419,867 ADSs were outstanding and fully vested with a weighted average exercise price per option of $9.24 and aggregate intrinsic value of $0.

    The weighted average contractual life of Options outstanding and vested at March 31, 2025 and December 31, 2024 was 0.5 years and 0.8 years, respectively.

    14. Loss per share

    Basic loss per share is calculated by dividing the loss attributable to ordinary equity holders of the Company for the period by the weighted average number of ordinary shares outstanding. Diluted loss per share is based on dividing the loss attributable for the period, adjusted for the effect of dilutive ordinary shares, by ordinary share equivalents, which includes the weighted average number of ordinary shares outstanding and the effect of dilutive ordinary share equivalents.

     

     

    Three Months Ended
    March 31,

     

     

    2025

     

     

    2024

     

     

    ($'000, except share and per share
    amounts)

     

     

    ($'000, except share and per share
    amounts)

     

    Net loss

     

    $

    (12,887

    )

     

    $

    (8,951

    )

    Net loss per share - basic and diluted

     

    $

    (0.02

    )

     

    $

    (0.01

    )

    Weighted-average number of shares used in computing net loss per share - basic and diluted

     

     

    784,279,387

     

     

     

    700,263,490

     

    The Company’s potentially dilutive securities have been excluded from the computation of diluted net loss per share as the effect for the three months ended March 31, 2025 and 2024 would be to reduce the net loss per share. Therefore, the weighted average number of ordinary shares outstanding used to calculate both basic and diluted net loss per share is the same.

     

     

    Three Months Ended
    March 31,

     

     

    2025

     

     

    2024

     

    Share-based compensation awards

     

     

    92,734,385

     

     

     

    88,532,810

     

    Convertible loan notes

     

     

    -

     

     

     

    15,983,094

     

    Warrant liabilities

     

     

    2,487,816

     

     

     

    2,487,816

     

    Warrants classified in equity

     

     

    3,551,699

     

     

     

    5,001,313

     

     

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    Table of Contents

     

     

    15. Commitments and contingencies

    Indemnification agreements

    In the normal course of business, the Company enters into contracts and agreements that contain a variety of representations and warranties and provide for general indemnification. The Company’s exposure under these agreements is unknown because it involves claims that may be made against the Company in the future. To date, the Company has not paid any claims or been required to defend any action related to its indemnification obligations. However, the Company may record charges in the future as a result of these indemnification obligations. In accordance with the Articles of Association in force on March 31, 2025, the Company has indemnification obligations to its officers and directors for certain events or occurrences, subject to certain limits, while they are serving at the Company’s request in such capacity. There have been no claims to date, and the Company has director and officer insurance that may enable it to recover a portion of any amounts paid for future potential claims.

    Novartis Asset Purchase Agreements

    The Company issued to Novartis loan notes and agreed to make future payments to Novartis comprising amounts equal to ascending specified percentages of tiered annual worldwide net sales (beginning at high single digits and reaching into double digits at higher sales) of products that include the assets acquired. The levels of ascending percentages of tiered annual worldwide net sales are stipulated under the respective Purchase Agreements.

    The Company further agreed that in the event it transfers, licenses, assigns or leases all or substantially all of its assets, it will pay Novartis a percentage of the proceeds of such transaction. The payment of a percentage of proceeds is not payable with respect to any transaction involving equity interests of Mereo BioPharma Group plc, a merger or consolidation of Mereo BioPharma Group plc, or a sale of any assets of Mereo BioPharma Group plc.

    License agreement with AstraZeneca

    In October 2017, the Company entered into an exclusive license and option agreement (“the AstraZeneca License Agreement”) and subscription deed (the “AstraZeneca Subscription Deed”), together (the "Original Agreements") with AstraZeneca AB ("AstraZeneca"). Each of these were amended on November 8, 2024, when the Company entered into an amendment and restatement agreement related to the AstraZeneca License Agreement (the "Amended AstraZeneca License Agreement") and a Deed of Amendment and Restatement related to the AstraZeneca Subscription Deed (the "Amended AstraZeneca Subscription Deed") together (the "Amended AstraZeneca Agreements").

    Under the terms of the Original Agreements, the Company obtained from AstraZeneca an exclusive worldwide, sub-licensable license under AstraZeneca’s intellectual property rights relating to alvelestat, with an option to acquire such intellectual property rights following commencement of a pivotal trial and payment of related milestone payments, together with the acquisition of certain related assets. Upon entering into the Original Agreements, the Company made a payment of $3.0 million and issued 490,798 ordinary shares (equivalent to 98,159 ADSs) to AstraZeneca, for an aggregate upfront payment equal to $5.0 million. Upon execution of the Amended AstraZeneca License Agreement, the Company issued 2,044,392 ordinary shares and paid $0.5 million to AstraZeneca in respect of an agreed milestone.

    Under the terms of the Amended AstraZeneca Agreements, the Company has agreed, in connection with certain further development and regulatory milestones, to make potential future payments both in cash and through the issue of a variable number of additional ADSs to AstraZeneca of up to $114.3 million in the aggregate for products included in the Amended AstraZeneca License Agreement.

    The number of ADSs to be issued to satisfy each equity milestone is determined by dividing a monetary amount by a defined subscription price based on the weighted average trading price of the Company's ADSs and the obligation is presented as a liability under ASC Topic 480, Distinguishing Liabilities from Equity. The Company continues to reassess the fair value of such instruments each reporting period until the milestones are achieved, if ever, and the issuance of shares occurs. Given the pervasive uncertainty involved in establishing the amounts, timing and likelihood of the future cash flows, including the Company’s ability to secure either a partnership or alternative forms of non-dilutive financing, the possible terms and rate of such a partnership or financing, the clinical and regulatory performance of the product candidate and the lack of comparable recent transactions, the Company has determined the fair value of the equity milestones to be paid in a variable number of shares pursuant to its Amended AstraZeneca License Agreement to be negligible and therefore assigned a nil value to the instrument as of March 31, 2025.

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    Table of Contents

     

    In addition to the development and regulatory milestones, the Company has agreed to make payments to AstraZeneca based on specified commercial milestones of the product. The Company has also agreed to pay a specified percentage of sub-licensing revenue to AstraZeneca and to make royalty payments to AstraZeneca equal to ascending specified percentages of tiered annual worldwide net sales by the Company of licensed products (subject to certain reductions), ranging from the high single digits to low double digits. Royalties will be payable on a licensed-product-by-licensed-product and country-by-country basis until the later of ten years after the first commercial sale of such licensed product in such country and expiration of the last patent covering such licensed product in such country that would be sufficient to prevent generic entry. The Company has agreed to use commercially reasonable efforts to develop and commercialize at least one licensed product.

    The Amended AstraZeneca License Agreement will expire on the expiration of the last-to-expire royalty term with respect to all licensed products. Upon the expiration of the royalty term for a licensed product in a particular country, the licenses to the Company for such product in such country will become fully paid and irrevocable. Prior to exercise of the Option, if at all, the Company may terminate the Amended AstraZeneca License Agreement upon prior written notice. Either party may terminate the agreement upon prior written notice for the other party’s material breach that remains uncured for a specified period of time or insolvency.

    Research and development activities

    The Company enters into contracts in the normal course of business with contract research organizations (“CROs”), contract manufacturing organizations (“CMOs”) and other third parties to assist in the performance of research and development activities and other services and products for operating purposes. The contracts with CROs generally provide for termination on notice, and therefore, are cancellable contracts and not included herein. The Company has manufacturing commitments with CMOs of $0.3 million and $0.5 million as of March 31, 2025 and December 31, 2024, respectively.

    Manufacturing and supply agreement with Ultragenyx

    In December 2024, the Company entered into a manufacturing and supply agreement with Ultragenyx under which Ultragenyx is responsible for the manufacture and supply of setrusumab to the Company in its territories. The Company is also required to reimburse Ultragenyx for a portion of the manufacturing process development costs as well as future commercial supply costs.

    Legal proceedings

    From time to time, the Company may be a party to litigation or subject to claims incident to the ordinary course of business. The Company was not a party to any material litigation and did not have any material contingency reserves established for any liabilities as of March 31, 2025 and December 31, 2024.

    16. Related party disclosures

    In the three months ended March 31, 2025 and 2024, there were no reportable related party transactions.

    17. Segment information

    The Company has one operating segment focused on the business of developing rare disease therapies. The chief operating decision maker, its Chief Executive Officer, assesses performance for the entity and decides how to allocate resources based on consolidated net loss, which is reported on the consolidated statements of operations and comprehensive loss. The measure of segment assets is reported on the condensed consolidated balance sheet as total consolidated assets.

    The chief operating decision maker uses consolidated net loss and budget-to-actual variances for consolidated net loss to assess the performance of the operating segment.

    The following table presents certain financial data for the Company’s reportable segment, including significant segment expenses regularly provided to the chief operating decision maker to assess performance of the Company.

     

    16


    Table of Contents

     

     

     

    Three Months Ended
    March 31,

     

     

    2025

     

     

    2024

     

     

    ($'000)

     

     

    ($'000)

     

    Research and development expenses

     

     

     

     

     

     

    Setrusumab (BPS-804/UX143)

     

    $

    (2,244

    )

     

    $

    (909

    )

    Alvelestat (MPH-966)

     

     

    (1,365

    )

     

     

    (2,613

    )

    Etigilimab (MPH-313)

     

     

    (207

    )

     

     

    (350

    )

    Other

     

     

    (114

    )

     

     

    (122

    )

    General and administrative expenses

     

     

    (7,272

    )

     

     

    (5,906

    )

    Other segment items

     

     

    (1,685

    )

     

     

    949

     

    Net loss before income tax

     

    $

    (12,887

    )

     

    $

    (8,951

    )

    Other segment items consist of interest income, interest expense, change in fair value of warrants, foreign currency transaction loss/(gain), and benefit from research and development tax credit. These are disclosed in the condensed consolidated statements of operations and comprehensive loss.

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    Table of Contents

     

    Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

    The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our unaudited condensed consolidated financial statements and related notes appearing elsewhere in this Quarterly Report and the audited consolidated financial statements and notes thereto and management’s discussion and analysis of financial condition and results of operations for the year ended December 31, 2024, included in our 2024 Annual Report. Some of the information contained in this discussion and analysis or set forth elsewhere in this Quarterly Report, including information with respect to our plans and strategy for our business, includes forward-looking statements that involve risks and uncertainties. As a result of many factors, including those factors set forth in the “Risk Factors” section of our 2024 Annual Report, our actual results could differ materially from the results described in, or implied by, these forward-looking statements.

    Overview

    We are a biopharmaceutical company focused on the development of innovative therapeutics for rare diseases. We have developed a portfolio of late-stage clinical product candidates. Our two rare disease product candidates are setrusumab for the treatment of OI and alvelestat for the treatment of severe alpha-1 antitrypsin deficiency-associated lung disease (AATD-LD). Setrusumab has received orphan designation for OI from the European Commission ("EC") and the U.S. Food and Drug Administration ("FDA"), PRIME designation from the European Medicines Agency ("EMA") and has Breakthrough Therapy designation and rare pediatric disease designation from the FDA. Alvelestat has received orphan designation for AATD from the EC and the FDA, and Fast Track designation for the treatment of AATD-LD from the FDA.

    Our strategy is to selectively acquire and develop product candidates for rare diseases that have already received significant investment from large pharmaceutical and biotechnology companies and that have substantial pre-clinical, clinical and manufacturing data packages. Since our formation in March 2015, we have successfully executed on this strategy by acquiring six clinical-stage product candidates of which four were in rare diseases and oncology. Four of our six clinical-stage product candidates were acquired from large pharmaceutical companies and two were acquired in our merger with OncoMed Pharmaceuticals Inc in 2019. We have successfully completed large, randomized Phase 2 clinical trials for four of our product candidates and the Phase 1b portion of a Phase 1b/2 for a fifth product candidate.

    Rare diseases represent an attractive development and, in some cases, commercialization opportunity for us since they typically have high unmet medical need and can utilize regulatory pathways that facilitate acceleration to approval and to the potential market. Development of products for rare diseases involves close collaboration with key opinion leaders and investigators, and close coordination with patient organizations. Rare disease patients are typically treated at a limited number of specialized sites which helps identification of the patient population and enables a small, targeted sales infrastructure to commercialize the products in key markets.

     

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    Results of Operations

    Comparison of three months ended March 31, 2025 and 2024

    The following table sets forth Mereo’s results of operations for the three months ended March 31, 2025 and 2024.

     

     

     

    Three months ended March 31,

     

     

     

     

     

    2025

     

     

    2024

     

     

    Change

     

     

    ($'000)

     

     

    ($'000)

     

     

    ($'000)

     

    Operating expenses:

     

     

     

     

     

     

     

     

     

    Research and development

     

     

    (3,930

    )

     

     

    (3,994

    )

     

     

    64

     

    General and administrative

     

     

    (7,272

    )

     

     

    (5,906

    )

     

     

    (1,366

    )

    Loss from operations

     

     

    (11,202

    )

     

     

    (9,900

    )

     

     

    (1,302

    )

    Other income/(expenses)

     

     

     

     

     

     

     

     

     

    Interest income

     

     

    659

     

     

     

    617

     

     

     

    42

     

    Interest expense

     

     

    (180

    )

     

     

    (310

    )

     

     

    (130

    )

    Changes in the fair value of warrants

     

     

    416

     

     

     

    (448

    )

     

     

    864

     

    Foreign currency transaction (loss)/gain, net

     

     

    (2,765

    )

     

     

    613

     

     

     

    (3,378

    )

    Benefit from research and development tax credit

     

     

    185

     

     

     

    477

     

     

     

    (292

    )

    Net loss before income tax

     

     

    (12,887

    )

     

     

    (8,951

    )

     

     

    (4,196

    )

    Income tax benefit

     

     

    -

     

     

     

    -

     

     

     

    -

     

    Net loss

     

     

    (12,887

    )

     

     

    (8,951

    )

     

     

    (4,196

    )

    Other comprehensive income/(loss) – Foreign currency translation adjustments, net of tax

     

     

    3,559

     

     

     

    (798

    )

     

     

    4,357

     

    Total comprehensive loss

     

     

    (9,328

    )

     

     

    (9,749

    )

     

     

    161

     

    Research and development (“R&D”) expenses

    The following table sets forth our R&D expenses by product development program for the three months ended March 31, 2025 and 2024.

     

     

     

    Three months ended March 31,

     

     

     

     

     

    2025

     

     

    2024

     

     

    Change

     

     

    ($'000)

     

     

    ($'000)

     

     

    ($'000)

     

    Setrusumab (BPS-804/UX143)

     

     

    2,244

     

     

     

    909

     

     

     

    1,335

     

    Alvelestat (MPH-966)

     

     

    1,365

     

     

     

    2,613

     

     

     

    (1,248

    )

    Etigilimab (MPH-313)

     

     

    207

     

     

     

    350

     

     

     

    (143

    )

    Other

     

     

    114

     

     

     

    122

     

     

     

    (8

    )

    Total R&D expenses

     

     

    3,930

     

     

     

    3,994

     

     

     

    (64

    )

     

    Total R&D expenses decreased by $0.1 million, from $4.0 million in the three months ended March 31, 2024 to $3.9 million in the three months ended March 31, 2025.

     

    The decrease was primarily due to decreases of $1.2 million and $0.1 million in R&D expenses for alvelestat and etigilimab, offset by an increase of $1.3 million in R&D expenses for setrusumab.

    The decrease in program expenses for alvelestat was primarily due to undertaking reduced drug formulation and manufacturing activities in preparation for the Phase 3 study in the three months ended March 31, 2025, compared to the three months ended March 31, 2024.

    The increase in program expenses for setrusumab was primarily driven by amounts due under the manufacturing and supply agreement with our partner, Ultragenyx, ongoing activities related to real-world evidence programs and medical affairs activities in Europe and input into development, regulatory and manufacturing plans with Ultragenyx, who fund the global development of the program pursuant to our license and collaboration agreement.

    19


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    General and administrative expenses

    General and administrative expenses increased by $1.4 million, from $5.9 million in the three months ended March 31, 2024 to $7.3 million in the three months ended March 31, 2025. The increase was primarily due to the recognition of a $1.7 million reduction in expenses in the three months ended March 31, 2024 for amounts received from our depository to reimburse certain expenses incurred by us in respect of our ADR program, partially offset by a net decrease in employee-related expenses and professional fees. A reimbursement in respect of our ADR program is anticipated in 2025.

    Interest income and expense

    Interest income increased by less than $0.1 million, from $0.6 million in the three months ended March 31, 2024 to $0.7 million in the three months ended March 31, 2025, principally due to a higher cash and cash equivalents balance as a result of receiving the net proceeds of $46.2 million from the underwritten registered direct offering in June 2024, offset by lower interest rates earned.

    Interest expense decreased by $0.1 million, from $0.3 million in the three months ended March 31, 2024 to $0.2 million in the three months ended March 31, 2025. The decrease was principally due to the conversion of convertible loan notes in February 2025.

    Changes in the fair value of warrants

     

    The total change in fair value of warrants for the three months ended March 31, 2025 was an unrealized gain of $0.4 million, compared to an unrealized loss of $0.4 million in the three months ended March 31, 2024. The unrealized gain in the three months ended March 31, 2025 was primarily due to the impact of a decrease in the price of the Company’s ADSs on the value of the warrant liabilities, whereas in the three months ended March 31, 2024, the unrealized loss was primarily due to an increase in the ADS price in the period.

    Foreign currency transaction (loss)/gain

    The net foreign exchange loss for the three months ended March 31, 2025 was $2.8 million, compared to a gain of $0.6 million for the three months ended March 31, 2024. This change primarily reflects (i) the impact of a weakening in the value of U.S. dollars when translating U.S. dollar balances into our functional currency of pound sterling in the three months ended March 31, 2025, compared to a strengthening of U.S. dollars in the three months ended March 31, 2024, and (ii) higher U.S. dollar balances following the underwritten registered direct offering in June 2024.

     

    Benefit from research and development tax credit

    The benefit from research and development tax credit decreased by $0.3 million, from $0.5 million in the three months ended March 31, 2024 to $0.2 million in the three months ended March 31, 2025. This decrease reflects a combination of a lower level of qualifying expenditure in the three months ended March 31, 2025 and a reduction in the proportion of qualifying expenditure that can be reclaimed under the scheme rules. The income tax benefit represents eligible cash rebates paid or receivable from the tax authorities in the jurisdictions within which we operate for eligible types of research and development activities and associated expenditure.

    Other comprehensive income – Foreign currency translation adjustments

    The foreign currency translation adjustment for the three months ended March 31, 2025 was a gain of $3.6 million, compared to a loss of $0.8 million in the three months ended March 31, 2024. This change primarily reflects the impact of a greater weakening in the value of U.S. dollars when translating U.S. dollar balances into our functional currency of pound sterling in the three months ended March 31, 2025, compared to a lesser weakening of U.S. dollars in the three months ended March 31, 2024.

    Liquidity and Capital Resources

    Overview

    Under the current business plan and cash flow forecasts, and in consideration of our ongoing research and development efforts and our general corporate funding requirements, we anticipate that our current on-hand cash resources will extend into 2027. However, we will need additional external funding to complete our development plans and potentially commercialize selected rare

    20


    Table of Contents

     

    disease products. We plan to fund our operations through cash on hand and a combination of non-dilutive funding sources, public or private equity or debt financing or other sources.

    We do not currently have any approved product candidates and as a result, have not generated any revenue from product sales. As a result, to date, we have financed our operations primarily through the issuances of our equity securities, convertible debt and warrants. These offerings have raised approximately $259.0 million, including through the $50.0 million underwritten registered direct offering in June 2024 and the $12.0 million “at-the-market” offering pursuant to our Open Market Sale Agreement with Jefferies LLC in July 2023 (all amounts are gross proceeds before fees and discounts).

    We have also received payments under various license and collaboration agreements, including payments of:

    •
    $50.0 million under the license and collaboration agreement with Ultragenyx for setrusumab in 2021 and a further milestone payment of $9.0 million in July 2023;
    •
    $4.0 million under the license and collaboration agreement with Feng Biosciences (formerly OncXerna) for navicixizumab in 2020 and a further milestone payment of $2.0 million in 2022; and
    •
    $1.0 million under the global license agreement with ReproNovo for leflutrozole in December 2023.

    Contractual Obligations

    As further described in our 2024 Annual Report, under “Item 1. Business—Material Agreements—Novartis Agreements” (as updated in Note 16 to the condensed consolidated financial statements included in this Quarterly Report) and “Item 1. Business—Material Agreements—Licensing Agreement with AstraZeneca,” under various agreements with Novartis and AstraZeneca, we have agreed to make milestone payments and pay royalties on potential future commercial sales. The amount, timing, and likelihood of such payments are not known and will remain uncertain for the foreseeable future.

    In addition, we enter into contracts in the ordinary course of business with CROs, CMOs, and other vendors, including Ultragenyx for the manufacture of setrusumab as described in our 2024 Annual Report in “Item 1. Business—Material Agreements—Agreements with Ultragenyx for Setrusumab”, to assist in the performance of its research and development activities and other services and products for operating purposes. The contracts with CROs generally provide for termination on notice, and therefore are cancelable contracts. We have manufacturing commitments with CMOs of $0.3 million and $0.5 million as of March 31, 2025 and December 31, 2024, respectively.

    Cash Flows

    Comparison of the three months ended March 31, 2025 and 2024

    The table below summarizes our cash flows (used in) from operating, investing and financing activities for the three months ended March 31, 2025 and 2024.

     

     

    Three Months Ended March 31,

     

     

    2025

     

     

    2024

     

     

    ($'000)

     

     

    ($'000)

     

     Net cash used in operating activities

     

     

    (8,329

    )

     

     

    (7,991

    )

     Net cash used in investing activities

     

     

    (320

    )

     

     

    (700

    )

     Net cash provided by financing activities

     

     

    422

     

     

     

    —

     

     Effect of exchange rate changes

     

     

    908

     

     

     

    (70

    )

     Decrease in cash and cash equivalents

     

     

    (7,319

    )

     

     

    (8,761

    )

     

    Operating Activities

    Net cash used in operating activities for the three months ended March 31, 2025 was $8.3 million, an increase of $0.3 million from $8.0 million in the three months ended March 31, 2024. This increase is primarily due to receipt of $1.7 million from our depository to reimburse certain expenses incurred by us in respect of our ADR program and receipt of $2.0 million from a claim on our Directors and Officers insurance policy to reimburse us for certain legal and professional costs incurred in prior years in the three months ended March 31, 2024 with no similar amounts recognized in the three months ended March 31, 2025. These increases were

    21


    Table of Contents

     

    partially offset by approximately $2.3 million in lower cash operating expenses and receipt of $1.1 million in R&D tax credits in the three months ended March 31, 2025.

    Investing Activities

    Net cash used in investing activities for the three months ended March 31, 2025 was $0.3 million, a decrease of $0.4 million from $0.7 million in the three months ended March 31, 2024. The decrease is principally due to lower payments to acquire intangible assets in the three months ended March 31, 2025.

    Financing Activities

    Net cash provided by financing activities for the three months ended March 31, 2025 was $0.4 million, compared to net cash provided by financing activities of less than $0.1 million in the three months ended March 31, 2024. The increase principally represents the $0.5 million received upon exercise of the 2020 Novartis Warrants.

    Operating and Capital Expenditure Requirements

    As of March 31, 2025, we had an accumulated deficit of $472.0 million. We expect to continue to report significant operating losses for the foreseeable future as we continue our research and development efforts and seek to obtain regulatory approval of our product candidates and any future product we develop.

    We expect to continue to incur expenses in connection with our ongoing development activities related to our product candidates, our outsourced manufacturing activities and other associated costs including the management of our intellectual property portfolio. We also expect to continue to incur costs associated with operating as a U.S. public company listed on Nasdaq and as a domestic registrant.

    These costs will increase further if we:

    •
    seek to develop additional product candidates;
    •
    seek regulatory approvals for any of our product candidates that successfully complete clinical trials;
    •
    potentially establish a sales, marketing, and distribution infrastructure and scale-up manufacturing capabilities to commercialize or co-commercialize any product candidates for which we may obtain regulatory approval and chose to commercialize directly;
    •
    expand our intellectual property portfolio;
    •
    add further clinical, scientific, operational, financial, legal and management information systems, and personnel, including personnel to support our development, potential commercialization and to support our operations as a U.S. public company listed on Nasdaq; or
    •
    experience any delays or encounter any issues from any of the above, including but not limited to failed studies, complex results, safety issues, or other regulatory challenges.

    We expect that our existing cash and cash equivalents will enable us to fund our currently committed clinical trials, operating expenses and capital expenditure requirements into 2027. We have based these estimates on assumptions that may prove to be wrong, and we may use our available capital resources sooner than we currently expect. Because of the numerous risks and uncertainties associated with the development of our product candidates and any future product candidates and because the extent to which we may enter into collaborations with third parties for development of any of our product candidates is unknown, we are unable to estimate the amounts of increased capital outlays and operating expenses associated with completing the research and development of our product candidates. Our future capital requirements will depend on many factors, including:

    •
    the costs for our activities related to our ongoing collaboration with Ultragenyx for setrusumab for the treatment of children and adults with OI, including the costs for our preparation for the potential commercialization of setrusumab, if approved, in Europe and the U.K; and potential future costs for the alvelestat program in AATD;
    •
    the costs and timing of manufacturing clinical or commercial supplies of our product candidates;

    22


    Table of Contents

     

    •
    the costs, timing, and outcome of regulatory review of our product candidates, including post-marketing studies that could be required by regulatory authorities;
    •
    the costs, timing, and outcome of potential future commercialization activities, including manufacturing, marketing, sales, life cycle management and distribution, for our product candidates that we commercialize directly;
    •
    the timing and amount of revenue, if any, received from commercial sales of our product candidates;
    •
    the costs and timing of preparing, filing, and prosecuting patent applications; maintaining and enforcing our intellectual property rights; and defending any intellectual property-related claims, including any claims by third parties that we are infringing, misappropriating or otherwise violating their intellectual property rights;
    •
    the sales price and availability of adequate third-party coverage and reimbursement for our product candidates;
    •
    the effect of competitors and market developments;
    •
    the performance of our collaborators and partners under the existing agreements on setrusumab, navicixizumab and, leflutrozole;
    •
    the extent to which we are able to acquire new product candidates or enter into licensing or collaboration arrangements for our product candidates, although we currently have no commitments or agreements to complete any such transactions;
    •
    milestone payments under the Amended AstraZeneca Agreements; and
    •
    tax liabilities or other assessments and our ability to claim R&D tax credits or other reliefs.

    Our revenues, if any, will be derived from development milestones or sales of any product candidates that we are able to successfully develop, receive regulatory approval for, and commercialize in future years. In the meantime, we will need to obtain substantial additional funds to achieve our business objective.

    Adequate additional funds may not be available to us on acceptable terms, or at all. If we raised additional funds through collaborations, strategic alliances, or licensing arrangements with third parties, we may have to relinquish valuable rights to our technologies, future revenue streams, research programs or product candidates or grant licenses on terms that may not be favorable to us.

    Any future debt financing or preferred equity financing, if available, may involve agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures or declaring dividends and may require the issuance of warrants, which could potentially dilute your ownership interests.

    To the extent that we raise additional capital through the sale of equity or convertible debt securities, shareholders' ownership interests may be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect your rights as a shareholder. If we are unable to raise additional funds through partnerships, debt or equity financings when needed, we may be required to delay, limit, reduce, or terminate our product development programs or any future commercialization efforts or grant rights to develop and market product candidates that we would otherwise prefer to develop and market ourselves.

    Critical Accounting Estimates

    Our unaudited condensed consolidated financial statements are prepared in accordance with U.S. GAAP. The preparation of these unaudited condensed consolidated financial statements requires us to make estimates and assumptions that affect the reported amounts of assets, liabilities, costs and expenses, and related disclosures. On an ongoing basis, we evaluate our accounting estimates based on historical experience and on various other assumptions that we believe are reasonable under the circumstances. The actual impact on our financial performance could differ from these estimates under different assumptions or conditions.

    An accounting estimate is considered critical if both (i) the nature of the estimates or assumptions is material due to the levels of subjectivity and judgment involved, and (ii) the impact within a reasonable range of outcomes of the estimates and assumptions is material to our unaudited condensed consolidated financial statements. We believe that there are no estimates and assumptions made in our unaudited condensed consolidated financial statements that rise to this level. Our significant accounting policies are described under the heading “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Critical Accounting

    23


    Table of Contents

     

    Estimates” in our 2024 Annual Report, which was filed with the SEC on March 26, 2025. If actual results or events differ materially from the estimates, judgments and assumptions used by us in applying these policies, our reported financial condition and results of operations could be materially affected. There have been no significant changes to our critical accounting estimates from those described in our 2024 Annual Report.

    Safe Harbor

    See the section titled “Information Regarding Forward-Looking Statements” at the beginning of this Quarterly Report.

    Item 3. Quantitative and Qualitative Disclosures About Market Risk

    As a “smaller reporting company” as defined by Item 10 of Regulation S-K, we are not required to provide information required by this Item.

    Item 4. Controls and Procedures

    Evaluation of Disclosure Controls and Procedures

    Our management, with the participation of our Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of our disclosure controls and procedures (as defined in Rules 13a 15(e) and 15d 15(e)) under the Securities and Exchange Act of 1934, as amended (“Exchange Act”)) as of March 31, 2025.

    Based on such evaluation, our Chief Executive Officer and Chief Financial Officer have concluded that our disclosure controls and procedures were effective at March 31, 2025.

    Changes in Internal Control over Financial Reporting.

    No changes in our internal control over financial reporting (as defined in Rules 13a-15(e) and 15d – 15(e) under the Exchange Act) occurred during the three months ended March 31, 2025 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

    24


    Table of Contents

     

    PART II – OTHER INFORMATION

    Item 1. Legal Proceedings

    As of March 31, 2025, we were not a party to any material legal proceedings.

     

    Item 1A. Risk Factors

    There have been no material changes from the risk factors previously disclosed in the Company’s 2024 Annual Report.

    Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

    None.

    Item 3. Defaults Upon Senior Securities

    Not applicable.

    Item 4. Mine Safety Disclosures

    Not applicable.

    Item 5. Other Information

    During the three-month period ended March 31, 2025, none of our directors or officers adopted, modified or terminated a “Rule 10b5-1 trading arrangement” or a “non-Rule 10b5-1 trading arrangement” as such terms are defined in Item 408(a) of Regulation S-K.

     

     

    25


    Table of Contents

     

    Item 6. Exhibits

    The following exhibits are either provided with this Quarterly Report on Form 10-Q or are incorporated herein by reference:

     

    Exhibit

    Number

     

    Description of Exhibit

     

     

     

    31.1*

     

    Certification of Chief Executive Officer pursuant to Rule 13a-14(a) and Rule 15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

     

     

     

    31.2*

     

    Certification of Chief Financial Officer pursuant to Rule 13a-14(a) and Rule 15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

     

     

     

    32.1**

     

    Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

     

     

     

    32.2**

     

    Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

     

     

     

    101.INS

     

    Inline XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.

     

     

     

    101.SCH

     

    Inline XBRL Taxonomy Extension Schema With Embedded Linkbase Documents

     

     

     

    104

     

    The cover page for the Company's Quarterly Report on Form 10-Q has been formatted in Inline XBRL and contained in Exhibit 101

     

    * Filed herewith.

    ** Furnished herewith.

     

    26


    Table of Contents

     

    SIGNATURES

    Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized, on May 13, 2025.

     

     

     

     

    MEREO BIOPHARMA GROUP PLC

     

     

     

     

    Date: May 13, 2025

    /s/ Denise Scots-Knight

     

    Denise Scots-Knight

     

    Chief Executive Officer

     

     

     

     

    Date: May 13, 2025

    /s/ Christine Fox

     

    Christine Fox

     

    Chief Financial Officer

     

    27


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      Health Care
    • Amendment: SEC Form SC 13G/A filed by Mereo BioPharma Group plc

      SC 13G/A - Mereo BioPharma Group plc (0001719714) (Subject)

      11/14/24 11:44:32 AM ET
      $MREO
      Biotechnology: Pharmaceutical Preparations
      Health Care

    $MREO
    Financials

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    • Mereo BioPharma Reports First Quarter 2025 Financial Results and Provides Corporate Highlights

      Progress continues in Phase 3 Orbit study of setrusumab in osteogenesis imperfecta (OI) Cash of $62.5 million as of March 31, 2025, expected to fund operations into 2027 LONDON, May 13, 2025 (GLOBE NEWSWIRE) -- Mereo BioPharma Group plc (NASDAQ:MREO) ("Mereo" or the "Company"), a clinical-stage biopharmaceutical company focused on rare diseases, today announced its financial results for the first quarter ended March 31, 2025, and provided recent corporate highlights. "As we close out the first quarter of 2025, we continue to anticipate that this will be an important, milestone-rich year for Mereo. The Phase 3 Orbit study of setrusumab in osteogenesis imperfecta remains on track to read-

      5/13/25 7:30:05 AM ET
      $MREO
      Biotechnology: Pharmaceutical Preparations
      Health Care
    • Mereo BioPharma Reports Full Year 2024 Financial Results and Provides Corporate Highlights

      Orbit Phase 3 study of setrusumab in osteogenesis imperfecta progressing toward second interim analysis, expected mid-2025 Alvelestat granted Orphan Designation by the European Commission for treatment of Alpha-1 Antitrypsin Deficiency-associated Lung Disease (AATD-LD) Cash of $69.8 million as of December 31, 2024, expected to fund operations into 2027 LONDON, March 26, 2025 (GLOBE NEWSWIRE) -- Mereo BioPharma Group plc (NASDAQ:MREO) ("Mereo" or the "Company"), a clinical-stage biopharmaceutical company focused on rare diseases, today announced its financial results for the full year ended December 31, 2024, and provided recent corporate highlights. "2024 was a

      3/26/25 7:30:36 AM ET
      $MREO
      Biotechnology: Pharmaceutical Preparations
      Health Care
    • Mereo BioPharma Reports First Quarter 2024 Financial Results and Provides Corporate Update

      LONDON, May 15, 2024 (GLOBE NEWSWIRE) -- Mereo BioPharma Group plc (NASDAQ:MREO) ("Mereo" or the "Company"), a clinical-stage biopharmaceutical company focused on rare diseases, today announced its financial results for the first quarter ended March 31, 2024, and provided an update on recent corporate highlights. The Company reported cash and cash equivalents of $48.7 million as of March 31, 2024 and continues to expect this to fund its operations into 2026. "2024 is off to an exciting start following the completion of enrollment by our partner Ultragenyx in both the Orbit and Cosmic studies of setrusumab in Osteogenesis Imperfecta (OI) along with the continued advancement of the pre-laun

      5/15/24 4:01:44 PM ET
      $MREO
      Biotechnology: Pharmaceutical Preparations
      Health Care

    $MREO
    Analyst Ratings

    Analyst ratings in real time. Analyst ratings have a very high impact on the underlying stock. See them live in this feed.

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    • Analyst initiated coverage on Mereo BioPharma with a new price target

      Analyst initiated coverage of Mereo BioPharma with a rating of Overweight and set a new price target of $7.00

      3/27/25 8:18:53 AM ET
      $MREO
      Biotechnology: Pharmaceutical Preparations
      Health Care
    • Jefferies initiated coverage on Mereo BioPharma with a new price target

      Jefferies initiated coverage of Mereo BioPharma with a rating of Buy and set a new price target of $7.00

      12/6/24 7:56:53 AM ET
      $MREO
      Biotechnology: Pharmaceutical Preparations
      Health Care
    • Robert W. Baird initiated coverage on Mereo BioPharma with a new price target

      Robert W. Baird initiated coverage of Mereo BioPharma with a rating of Outperform and set a new price target of $8.00

      6/13/24 7:11:27 AM ET
      $MREO
      Biotechnology: Pharmaceutical Preparations
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    $MREO
    Insider Trading

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    • SEC Form 4 filed by Director Yoskowitz Marc J

      4 - Mereo BioPharma Group plc (0001719714) (Issuer)

      2/6/25 4:30:22 PM ET
      $MREO
      Biotechnology: Pharmaceutical Preparations
      Health Care
    • SEC Form 4 filed by Director Bender Jeremy

      4 - Mereo BioPharma Group plc (0001719714) (Issuer)

      2/6/25 4:30:14 PM ET
      $MREO
      Biotechnology: Pharmaceutical Preparations
      Health Care
    • SEC Form 4 filed by Director Shames Daniel

      4 - Mereo BioPharma Group plc (0001719714) (Issuer)

      2/6/25 4:30:06 PM ET
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      Biotechnology: Pharmaceutical Preparations
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    SEC Filings

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    • Amendment: SEC Form SCHEDULE 13G/A filed by Mereo BioPharma Group plc

      SCHEDULE 13G/A - Mereo BioPharma Group plc (0001719714) (Subject)

      5/15/25 10:46:23 AM ET
      $MREO
      Biotechnology: Pharmaceutical Preparations
      Health Care
    • Amendment: SEC Form SCHEDULE 13G/A filed by Mereo BioPharma Group plc

      SCHEDULE 13G/A - Mereo BioPharma Group plc (0001719714) (Subject)

      5/14/25 4:34:46 PM ET
      $MREO
      Biotechnology: Pharmaceutical Preparations
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    • Mereo BioPharma Group plc filed SEC Form 8-K: Submission of Matters to a Vote of Security Holders, Financial Statements and Exhibits

      8-K - Mereo BioPharma Group plc (0001719714) (Filer)

      5/14/25 4:30:10 PM ET
      $MREO
      Biotechnology: Pharmaceutical Preparations
      Health Care

    $MREO
    Leadership Updates

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    • Mereo BioPharma Announces Appointment of Dr. Abdul Mullick to Board of Directors

      LONDON and REDWOOD CITY, Calif., May 17, 2022 (GLOBE NEWSWIRE) -- Mereo BioPharma Group plc (NASDAQ:MREO) ("Mereo" or the "Company"), a clinical-stage biopharmaceutical company focused on oncology and rare diseases, today announced the appointment of Dr. Abdul Mullick to the Company's Board of Directors, effective immediately. Dr. Mullick joins Mereo's Board with over 20 years of experience in the pharmaceutical industry in senior leadership positions across multiple therapeutic areas and geographies, including in rare diseases. "We are very excited to welcome Abdul to the Board at such a pivotal time for the Company," said Dr. Denise Scots-Knight, Chief Executive Officer of Mereo. "His e

      5/17/22 8:00:00 AM ET
      $MREO
      Biotechnology: Pharmaceutical Preparations
      Health Care
    • Mereo BioPharma Announces Appointment of Anne Hyland to Board of Directors

      LONDON and REDWOOD CITY, Calif., March 01, 2022 (GLOBE NEWSWIRE) -- Mereo BioPharma Group plc (NASDAQ:MREO), "Mereo" or "the Company", a clinical-stage biopharmaceutical company focused on oncology and rare diseases, today announced the appointment of Anne Hyland to the Company's Board of Directors, effective immediately. Ms. Hyland has also been appointed to serve on the Audit and Risk Committee of the Board. Ms. Hyland joins Mereo's Board with over 30 years of financial experience in both private and public companies in the biopharmaceutical space. "We are very excited to welcome someone with Anne's level of operational and board experience to our Board," said Dr. Denise Scots-Knight, C

      3/1/22 8:00:00 AM ET
      $MREO
      Biotechnology: Pharmaceutical Preparations
      Health Care
    • Mereo BioPharma Announces Appointment of Pierre Jacquet, M.D., Ph.D. to Board of Directors

      LONDON and REDWOOD CITY, Calif., Sept. 20, 2021 (GLOBE NEWSWIRE) -- Mereo BioPharma Group plc (NASDAQ:MREO), "Mereo" or "the Company", a clinical-stage biopharmaceutical company focused on oncology and rare diseases, today announced the appointment of Pierre Jacquet, M.D., Ph.D to the Company's Board of Directors, effective September 20, 2021. Dr. Jacquet joins Mereo's Board with over two decades of multidisciplinary experience in the life science industry, including corporate strategy, M&A advisory and value management. "We are delighted to have Pierre joining our board of directors at such an exciting and important time for the Company," said Dr. Denise Scots-Knight, Chief Executive Off

      9/20/21 8:00:00 AM ET
      $MREO
      Biotechnology: Pharmaceutical Preparations
      Health Care