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    SEC Form DEFA14A filed by Spero Therapeutics Inc.

    4/28/25 4:29:35 PM ET
    $SPRO
    Biotechnology: Pharmaceutical Preparations
    Health Care
    Get the next $SPRO alert in real time by email
    DEFA14A 1 d797305ddefa14a.htm DEFA14A DEFA14A
     
     

    UNITED STATES

    SECURITIES AND EXCHANGE COMMISSION

    WASHINGTON, D.C. 20549

    SCHEDULE 14A

    Proxy Statement Pursuant to Section 14(a) of the

    Securities Exchange Act of 1934

    (Amendment No. )

    Filed by the Registrant ☒        Filed by a Party other than the Registrant ☐

    Check the appropriate box:

     

    ☐   Preliminary Proxy Statement
    ☐   Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
    ☐   Definitive Proxy Statement
    ☒   Definitive Additional Materials
    ☐   Soliciting Material Under §240.14a-12

    Spero Therapeutics, Inc.

    (Name of Registrant as Specified in its Charter)

    (Name of Person(s) Filing Proxy Statement, if other than the Registrant)

    Payment of Filing Fee (Check the appropriate box all boxes that apply):

    ☒   No fee required.
    ☐   Fee paid previously with preliminary materials.
    ☐   Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-1.

     

     
     


    LOGO

    You invested in SPERO THERAPEUTICS, INC. and it’s time to vote!

    You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the availability of proxy materials for the stockholder meeting to be held on June 12, 2025.

    Get informed before you vote

    View the Notice and Proxy Statement and Form 10-K online OR you can receive a free paper or email copy of the material(s) by requesting prior to May 29, 2025. If you would like to request a copy of the material(s) for this and/or future stockholder meetings, you may (1) visit www.ProxyVote.com, (2) call 1-800-579-1639 or (3) send an email to [email protected]. If sending an email, please include your control number (indicated below) in the subject line. Unless requested, you will not otherwise receive a paper or email copy.

     

     

    LOGO

    *Please check the meeting materials for any special requirements for meeting attendance.


    Vote at www.ProxyVote.com

     

     

    THIS IS NOT A VOTABLE BALLOT

    This is an overview of the proposals being presented at the

    upcoming stockholder meeting. Please follow the instructions on

    the reverse side to vote these important matters.

     

        Voting Items  

    Board

    Recommends 

     
     

    1.

     

    To elect three Class II directors to serve until the Company’s 2028 Annual Meeting of Stockholders or until their respective successors are elected and qualified.

       
     
       

    Nominees:

       
     
       

    1a.

     

    Frank E. Thomas

     

    LOGO

     

    For

     
       

    1b.

     

    Patrick Vink, M.D.

     

    LOGO

     

    For

     
       

    1c.

     

    Esther Rajavelu

     

    LOGO

     

    For

     

     

    2.

     

    To ratify the appointment of PricewaterhouseCoopers LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2025.

     

    LOGO

     

    For

     
       

    3.

     

    To approve by an advisory vote the compensation of the Company’s named executive officers, as disclosed in the proxy statement.

     

    LOGO

     

    For

     
       

    4.

     

    To approve an amendment to the Company’s 2017 Stock Incentive Plan, as amended, to increase the total number of shares of common stock authorized for issuance thereunder by 3,000,000 shares.

     

    LOGO

     

    For

       

    NOTE: To transact such other business that is properly presented at the annual meeting and any adjournments or postponements thereof.

           
     

     

     

     

     

     

     

    Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click “Delivery Settings”.

    V74276-P27998

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