CAMBRIDGE, Mass., Nov. 8, 2017 /PRNewswire/ -- Merrimack Pharmaceuticals, Inc. (NASDAQ: MACK) today announced its third quarter 2017 financial results for the period ended September 30, 2017.

"The third quarter marked continued execution on our 2017 goals as we delivered on the promise of a refocused Merrimack with a seasoned team built around our efficient, biomarker-driven approach and refined corporate strategy," said Richard Peters, M.D., Ph.D., President and Chief Executive Officer. "With the potential to emerge from the fourth quarter with a clean balance sheet and three upcoming data readouts from our lead clinical candidates, MM-121, MM-141 and MM-310, we look towards 2018 with great anticipation and are poised to deliver on our corporate goals with a strong infrastructure and disciplined approach."

Third Quarter and Recent Highlights

Key events from the third quarter and more recently include:


    --  Received orphan drug designation from the U.S. Food and Drug
        Administration (FDA) for MM-121 in heregulin positive non-small cell
        lung cancer, which would potentially provide Merrimack with up to seven
        years of market exclusivity in this indication, among other benefits, if
        approved; and
    --  Rounded out executive team with two key additions:
        --  Jean Franchi, a 30-year industry veteran with rich leadership
            experience in the biotechnology and life sciences sectors, hired as
            Chief Financial Officer. Most recently, Ms. Franchi served as Chief
            Financial Officer at Dimension Therapeutics, with time previously
            spent as Chief Financial Officer at Good Start Genetics and 16 years
            at Genzyme, including as Senior Vice President of Corporate Finance.
        --  Thomas Needham, an experienced dealmaker with 25 years in corporate
            strategy and business development, hired as Chief Business Officer.
            Most recently, Mr. Needham served as Senior Vice President of
            Business Development at C4 Therapeutics. Previously, he was Managing
            Director at Synthesis Capital, where he helped manage two healthcare
            venture funds, a Principal at the global private equity firm Advent
            International and Vice President of Business Development at both GPC
            Biotech and Mitotix.

Upcoming Milestones

Merrimack anticipates the following upcoming clinical milestones:


    --  First patient dosed by the end of 2017 in the SHERBOC study, a Phase 2
        randomized, double-blind, placebo-controlled clinical trial of MM-121
        added to standard of care in patients with heregulin positive, hormone
        receptor positive, HER2 negative metastatic breast cancer;
    --  Top-line results in the first half of 2018 from the CARRIE study, a
        Phase 2 randomized clinical trial of MM-141 added to standard of care in
        patients with front-line metastatic pancreatic cancer who have high
        serum levels of free IGF-1;
    --  Top-line results in the second half of 2018 from the SHERLOC study, a
        Phase 2 randomized clinical trial of MM-121 added to standard of care in
        patients with heregulin positive non-small cell lung cancer; and
    --  Safety data and recommended Phase 2 dose in the second half of 2018 from
        the Phase 1 clinical study of MM-310 in patients with solid tumors.

Third Quarter 2017 Financial Results

The following summarizes Merrimack's financial results for the three months ended September 30, 2017:


    --  In October, Merrimack reached a settlement with participating
        convertible noteholders to resolve litigation associated with the asset
        sale to Ipsen S.A., agreeing to pay $0.90 per $1.00 of 4.50% convertible
        senior notes due in 2020 held by the noteholder plaintiffs, plus accrued
        interest and an amount towards the plaintiffs' legal fees. In
        conjunction with the settlement, Merrimack commenced a tender offer, set
        to expire November 10, 2017, to purchase all remaining convertible notes
        at the same rate of $0.90 per $1.00 of convertible notes, plus accrued
        interest, with the potential to eliminate remaining debt if all
        noteholders participate. Together, the settlement payout, the amount
        Merrimack expects to pay to acquire the remaining convertible notes and
        Merrimack's expenses related to this litigation will approximate the
        $60.0 million that Merrimack placed into an escrow account as security
        for the plaintiffs' claims;
    --  Research and development expenses for the three months ended September
        30, 2017 from continuing operations were $13.6 million, compared to
        $28.2 million for the three months ended September 30, 2016. This
        represents a decrease of $14.6 million, primarily due to Merrimack's
        refocused clinical and preclinical pipeline;
    --  General and administrative expenses for the three months ended September
        30, 2017 from continuing operations were $3.4 million, compared to $6.4
        million for the three months ended September 30, 2016. This represents a
        decrease of $3.0 million, primarily due to the transition following the
        asset sale which led to a decrease in corporate expenses related to
        headcount and stock-based compensation;
    --  Net loss attributable to Merrimack's continuing operations for the three
        months ended September 30, 2017 was $5.4 million, or $0.40 per share,
        compared to a net loss attributable to Merrimack's continuing operations
        of $26.6 million, or $2.06 per share, for the three months ended
        September 30, 2016;
    --  During the quarter, Merrimack deconsolidated Silver Creek
        Pharmaceuticals' financial statements from Merrimack's consolidated
        financial statements effective July 14, 2017. As a result of the
        deconsolidation, Merrimack recognized a non-cash gain of approximately
        $10.8 million; and
    --  As of September 30, 2017, Merrimack had 13.3 million shares of common
        stock, $0.01 par value per share, outstanding.

Updated Financial Outlook

Merrimack continues to believe that its unrestricted cash and cash equivalents of $107.2 million as of September 30, 2017 and potential net milestone payments anticipated from Shire will be sufficient to fund its planned operations into the second half of 2019.

Conference Call and Webcast

Merrimack will host a live conference call and webcast today, Wednesday, November 8, 2017 at 8:30 am ET, to provide an update on its operational progress and a summary of these financial results.

Investors and the general public are invited to listen to the call by dialing (877) 564-1301 (domestic) or (224) 357-2394 (international) five minutes prior to the start of the call and providing the passcode 6187659. A listen-only webcast of the call can be accessed in the Investors section of Merrimack's website, investors.merrimack.com, and a replay of the call will be archived there for six weeks following the call.

Annual Meeting Date

Merrimack will hold its 2018 Annual Meeting of Stockholders on June 12, 2018.

About Merrimack

Merrimack is a biopharmaceutical company based in Cambridge, Massachusetts that is outthinking cancer to ensure that patients and their families live fulfilling lives. Its mission is to transform cancer care through the smart design and development of targeted solutions based on a deep understanding of cancer pathways and biological markers. All of Merrimack's development programs, including four clinical studies in distinct indications and six candidates in preclinical development, fit into its strategy of 1) understanding the biological problems it is trying to solve, 2) designing specific solutions and 3) developing those solutions for biomarker-selected patients. This three-pronged strategy seeks to ensure optimal patient outcomes. For more information, please visit Merrimack's website at www.merrimack.com.

Forward Looking Statements

To the extent that statements contained in this press release are not descriptions of historical facts, they are forward-looking statements reflecting the current beliefs and expectations of management made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995, as amended. Forward-looking statements include any statements about Merrimack's strategy, future operations, future financial position, future revenues and future expectations and plans and prospects for Merrimack, and any other statements containing the words "anticipate," "believe," "estimate," "expect," "intend," "may," "plan," "predict," "project," "target," "potential," "will," "would," "could," "should," "continue" and similar expressions. In this press release, Merrimack's forward-looking statements include, among others, statements about the timing of availability of clinical trial data, the initiation of new clinical trials, the anticipated achievement of milestones, the availability of funding sufficient to fund Merrimack's operations, the timing of the tender offer, including the settlement thereof, and the satisfaction of the conditions to the tender offer. Such forward-looking statements involve substantial risks and uncertainties that could cause Merrimack's clinical development programs, future results, performance or achievements to differ significantly from those expressed or implied by the forward-looking statements. Such risks and uncertainties include, among others, the uncertainties inherent in the initiation of future clinical trials, availability of data from ongoing clinical trials, expectations for regulatory approvals, development progress of Merrimack's companion diagnostics, availability of funding sufficient for Merrimack's foreseeable and unforeseeable operating expenses and capital expenditure requirements, and other matters that could affect the availability or commercial potential of Merrimack's product candidates or companion diagnostics. Merrimack undertakes no obligation to update or revise any forward-looking statements. Forward-looking statements should not be relied upon as representing Merrimack's views as of any date subsequent to the date hereof. For a further description of the risks and uncertainties that could cause actual results to differ from those expressed in these forward-looking statements, as well as risks relating to Merrimack's business in general, see the "Risk Factors" section of Merrimack's Quarterly Report on Form 10-Q filed with the SEC on August 9, 2017 and the other reports Merrimack files with the SEC.


    Merrimack Pharmaceuticals, Inc.

    Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (unaudited)


                                                                                                    Three Months Ended                Nine Months Ended

                                                                                                      September 30,                     September 30,
                                                                                                      -------------                     -------------

    (in thousands, except per share amounts)                                                    2017                           2016                              2017         2016
                                                                                                ----                           ----                              ----         ----

    Costs and expenses:

    Research and development expenses                                                                                  $13,598                           $28,247          $54,954          $83,944

    General and administrative expenses                                                                                  3,366                             6,448           23,798           21,038

    Restructuring expenses                                                                                                   -                              809                -             809
                                                                                                                           ---                              ---              ---             ---

    Total costs and expenses                                                                                            16,964                            35,504           78,752          105,791
                                                                                                                        ------                            ------           ------          -------

    Loss from continuing operations                                                                                   (16,964)                         (35,504)        (78,752)       (105,791)

    Other income and expenses:

    Interest income                                                                                                        250                                64              646              258

    Interest expense                                                                                                   (1,659)                          (1,560)        (30,400)        (20,708)

    Gain on deconsolidation of Silver Creek Pharmaceuticals, Inc.                                                       10,848                                 -          10,848                -

    Gain on sale of asset                                                                                                    -                                -           1,703                -

    Other income (expense), net                                                                                             69                               385            (592)             278
                                                                                                                           ---                               ---             ----              ---

    Net loss from continuing operations before income tax benefit                                                      (7,456)                         (36,615)        (96,547)       (125,963)

    Income tax benefit                                                                                                   2,133                             9,770           32,372            9,770
                                                                                                                         -----                             -----           ------            -----

    Net loss from continuing operations                                                                                (5,323)                         (26,845)        (64,175)       (116,193)

    Discontinued operations:

    Income (loss) from discontinued operations, net of tax                                                               8,456                           (3,430)         547,994          (3,698)


    Net income (loss)                                                                                                    3,133                          (30,275)         483,819        (119,891)

    Net income (loss) attributable to non-controlling interest                                                              31                             (207)         (1,160)           (600)
                                                                                                                           ---                              ----           ------             ----

    Net income (loss) attributable to Merrimack Pharmaceuticals, Inc.                                                   $3,102                         $(30,068)        $484,979       $(119,291)
                                                                                                                        ======                          ========         ========        =========


    Other comprehensive income (loss):

    Unrealized loss on available-for-sale securities                                                                         -                              (3)               -             (2)
                                                                                                                           ---                              ---              ---             ---

    Other comprehensive loss                                                                                                 -                              (3)               -             (2)
                                                                                                                           ---                              ---              ---             ---

    Comprehensive income (loss)                                                                                         $3,102                         $(30,071)        $484,979       $(119,293)
                                                                                                                        ======                          ========         ========        =========


    Amounts attributable to Merrimack Pharmaceuticals, Inc.:

    Net loss from continuing operations                                                                               $(5,354)                        $(26,638)       $(63,015)      $(115,593)

    Income (loss) from discontinued operations, net of tax                                                               8,456                           (3,430)         547,994          (3,698)
                                                                                                                         -----                            ------          -------           ------

    Net income (loss) attributable to Merrimack Pharmaceuticals, Inc.                                                   $3,102                         $(30,068)        $484,979       $(119,291)
                                                                                                                        ======                          ========         ========        =========

    Basic and dilutive net income (loss) per common share

    Net loss from continuing operations                                                                                $(0.40)                          $(2.06)         $(4.77)         $(9.33)

    Net income (loss) from discontinued operations, net of tax                                                            0.64                            (0.27)           41.52           (0.30)
                                                                                                                          ----                             -----            -----            -----

    Net income (loss) per share                                                                                          $0.24                           $(2.33)          $36.75          $(9.63)
                                                                                                                         =====                            ======           ======           ======

    Weighted-average common shares used per share calculations-basic and diluted                                        13,282                            12,921           13,197           12,383

    Cash dividend paid per common share                                                            $                         -      $                         -          $10.55    $           -



    Merrimack Pharmaceuticals, Inc.

    Selected Balance Sheet Data (unaudited)

                                            September 30,     December 31,
                                            -------------     ------------

    (in thousands)                                   2017                  2016
                                                     ----                  ----

    Cash and cash
     equivalents                                          $107,245                $21,524

    Working capital                                         81,020               (30,787)

    Total assets                                           197,847                 81,483

    Total liabilities                                       86,213                334,142

    Total
     stockholders'
     equity/
     (deficit)                                             111,634              (251,120)


    Merrimack
     Pharmaceuticals,
     Inc.

    Selected Cash Flow
     Data (unaudited)


                        Nine Months Ended September 30,
                        -------------------------------

    (in thousands)       2017(1)                        2016(1)
                          ------                         ------

    Net cash used in
     operating
     activities                    $(121,145)                   $(139,344)

    Net cash provided
     by (used in)
     investing
     activities                       511,355                      (14,970)

    Net cash provided
     by (used in)
     financing
     activities                     (304,489)                        5,171
                                     --------                         -----

    Net increase
     (decrease) in cash
     and cash
     equivalents                      $85,721                    $(149,143)
                                      =======                     =========


    (1)       Includes
     cash flow from
     discontinued
     operations.

CONTACT:

Geoffrey M. Grande, CFA
617-441-7602
ggrande@merrimack.com

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