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    Andersen Eric bought $651,754 worth of shares (49,550 units at $13.15) (SEC Form 4)

    12/28/23 4:05:12 PM ET
    $MACK
    Biotechnology: Pharmaceutical Preparations
    Health Care
    Get the next $MACK alert in real time by email
    SEC FORM 4 SEC Form 4
    FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
    Washington, D.C. 20549

    STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

    Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
    or Section 30(h) of the Investment Company Act of 1940
    OMB APPROVAL
    OMB Number: 3235-0287
    Estimated average burden
    hours per response: 0.5
      
    Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
      
    Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
    1. Name and Address of Reporting Person*
    Andersen Eric

    (Last) (First) (Middle)
    5900 WILSHIRE BOULEVARD, SUITE 650

    (Street)
    LOS ANGELES CA 90036

    (City) (State) (Zip)
    2. Issuer Name and Ticker or Trading Symbol
    MERRIMACK PHARMACEUTICALS INC [ MACK ]
    5. Relationship of Reporting Person(s) to Issuer
    (Check all applicable)
    X Director 10% Owner
    Officer (give title below) X Other (specify below)
    See remarks
    3. Date of Earliest Transaction (Month/Day/Year)
    12/26/2023
    4. If Amendment, Date of Original Filed (Month/Day/Year)
    6. Individual or Joint/Group Filing (Check Applicable Line)
    Form filed by One Reporting Person
    X Form filed by More than One Reporting Person
    Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
    1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
    Code V Amount (A) or (D) Price
    Common Stock 12/26/2023 P 48,693 A $13.15(1) 533,151 I See footnote(2)
    Common Stock 12/28/2023 P 857 A $13.3503(3) 534,008 I See footnote(2)
    Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
    (e.g., puts, calls, warrants, options, convertible securities)
    1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
    Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
    1. Name and Address of Reporting Person*
    Andersen Eric

    (Last) (First) (Middle)
    5900 WILSHIRE BOULEVARD, SUITE 650

    (Street)
    LOS ANGELES CA 90036

    (City) (State) (Zip)
    1. Name and Address of Reporting Person*
    Western Standard LLC

    (Last) (First) (Middle)
    5900 WILSHIRE BOULEVARD, SUITE 650

    (Street)
    LOS ANGELES CA 90036

    (City) (State) (Zip)
    1. Name and Address of Reporting Person*
    WESTERN STANDARD PARTNERS LP

    (Last) (First) (Middle)
    5900 WILSHIRE BOULEVARD, SUITE 650

    (Street)
    LOS ANGELES CA 90036

    (City) (State) (Zip)
    1. Name and Address of Reporting Person*
    Western Standard Partners QP, L.P.

    (Last) (First) (Middle)
    5900 WILSHIRE BOULEVARD, SUITE 650

    (Street)
    LOS ANGELES CA 90036

    (City) (State) (Zip)
    Explanation of Responses:
    1. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $13.12 to $13.15, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (1) to this Form 4.
    2. The shares are directly held by WSP QP. The general partner of the Funds is Western Standard. The managing member of Western Standard and the portfolio manager to the Funds is Mr. Andersen. Each of Western Standard and Mr. Andersen disclaims beneficial ownership of the shares except to the extent of its or his pecuniary interest therein, if any, and this report shall not be deemed an admission that it or he is the beneficial owner of such shares.
    3. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $13.34 to $13.37, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (3) to this Form 4.
    Remarks:
    As a result of an agreement among the persons listed below to vote their respective shares of Common Stock jointly, such persons have formed a "group" under Section 13(d)(1) of the Exchange Act. In addition to Mr. Andersen, Western Standard, LLC ("Western Standard"), Western Standard Partners, L.P. ("WSP") and Western Standard Partners QP, L.P. ("WSP QP" and together with WSP, the "Funds") (collectively, the "Western Standard Parties"), the members of this group are Noah G. Levy, Newtyn Management, LLC, Newtyn Partners, Newtyn TE Partners, LP, Newtyn Capital Partners, LP, and Ledo Capital, LLC (collectively, the "Newtyn Parties" and collectively with the Western Standard Parties, the "13D Group"). As a member of the 13D Group, each Western Standard Party would be deemed to beneficially own the aggregate amount of the Common Stock that each of the 13D Group members beneficially owns, in which case it or he would be deemed to beneficially own 4,143,302 shares of Common Stock. However, none of the Western Standard Parties have the ability to direct the acquisition or disposition or, except through the Cooperation Agreement, voting of the securities held by Newtyn Parties, and none of the Newtyn Parties have the ability to direct the acquisition or disposition or, except through the Cooperation Agreement, voting of the securities held by the Western Standard Parties. As members of the 13D Group, the combined holdings of the Western Standard Parties and the Newtyn Parties would result in each Western Standard Party having voting power equivalent to a combined beneficial ownership of 28.9% of the Issuer's outstanding Common Stock for voting purposes. Each Western Standard Party disclaims beneficial ownership of the shares beneficially owned by the 13D Group except to the extent of its or his pecuniary interest therein, if any, and this report shall not be deemed an admission that it or he is the beneficial owner of such shares.
    /s/ Eric D. Andersen 12/28/2023
    Western Standard, LLC; /s/ Eric D. Andersen, Managing Member 12/28/2023
    Western Standard Partners, L.P.; By: Western Standard, LLC, General Partner; /s/ Eric D. Andersen, Managing Member 12/28/2023
    Western Standard Partners QP, L.P.; By: Western Standard, LLC, General Partner; /s/ Eric D. Andersen, Managing Member 12/28/2023
    ** Signature of Reporting Person Date
    Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
    * If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
    ** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
    Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
    Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
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