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    SEC Form SCHEDULE 13G filed by Lyell Immunopharma Inc.

    8/19/25 4:10:24 PM ET
    $LYEL
    Biotechnology: Pharmaceutical Preparations
    Health Care
    Get the next $LYEL alert in real time by email



    SECURITIES AND EXCHANGE COMMISSION
    Washington, D.C. 20549


    SCHEDULE 13G


    UNDER THE SECURITIES EXCHANGE ACT OF 1934
    Lyell Immunopharma, Inc.

    (Name of Issuer)


    Common Stock, par value $0.0001 per share

    (Title of Class of Securities)


    55083R104

    (CUSIP Number)


    07/25/2025

    (Date of Event Which Requires Filing of this Statement)


    Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
    Checkbox not checked   Rule 13d-1(b)
    Checkbox checked   Rule 13d-1(c)
    Checkbox not checked   Rule 13d-1(d)






    SCHEDULE 13G

    CUSIP No.
    55083R104


    1Names of Reporting Persons

    Explore Investments LLC
    2Check the appropriate box if a member of a Group (see instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3Sec Use Only
    4Citizenship or Place of Organization

    DELAWARE
    Number of Shares Beneficially Owned by Each Reporting Person With:
    5Sole Voting Power

    0.00
    6Shared Voting Power

    1,040,964.00
    7Sole Dispositive Power

    0.00
    8Shared Dispositive Power

    1,040,964.00
    9Aggregate Amount Beneficially Owned by Each Reporting Person

    1,040,964.00
    10Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

    Checkbox not checked
    11Percent of class represented by amount in row (9)

    5.4 %
    12Type of Reporting Person (See Instructions)

    OO

    Comment for Type of Reporting Person:  The percentage reported in Row 11 is calculated in accordance with Rule 13(d)-3(d)(1)(i) promulgated under the Securities Exchange Act of 1934 (as amended, the "Exchange Act") and based on an aggregate total of 14,808,006 shares of the common stock of Lyell Pharmaceuticals, Inc. (the "Issuer") outstanding as of May 30, 2025, as reported by the Issuer in its preliminary prospectus (the "Prospectus") (File No. 333-288769) dated July 18, 2025, incorporated in the Issuer's Form S-3 registration statement filed with the Securities and Exchange Commission (the "SEC") on July 18, 2025, and after giving effect to the issuance of: (i) an additional 625,000 shares (the "ImmPACT Shares") of common stock on July 2, 2025 as reported in the Prospectus and (ii) an additional 3,753,752 shares (the "PIPE Shares") of common stock on July 25, 2025 upon completion of the Issuer's private placement transaction as reported by the Issuer in its Current Report filed with the SEC on Form 8-K (File No. 001-40502) on July 25, 2025.


    SCHEDULE 13G

    CUSIP No.
    55083R104


    1Names of Reporting Persons

    Jeffrey P. Bezos
    2Check the appropriate box if a member of a Group (see instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3Sec Use Only
    4Citizenship or Place of Organization

    UNITED STATES
    Number of Shares Beneficially Owned by Each Reporting Person With:
    5Sole Voting Power

    0.00
    6Shared Voting Power

    1,040,964.00
    7Sole Dispositive Power

    0.00
    8Shared Dispositive Power

    1,040,964.00
    9Aggregate Amount Beneficially Owned by Each Reporting Person

    1,040,964.00
    10Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

    Checkbox not checked
    11Percent of class represented by amount in row (9)

    5.4 %
    12Type of Reporting Person (See Instructions)

    IN

    Comment for Type of Reporting Person:  For purposes of Rule 13d-3 under the Exchange Act, all shares of the Issuer's common stock held by Explore may be deemed to be beneficially owned by Jeffrey P. Bezos as the sole member of Explore. The percentage reported in Row 11 is calculated in accordance with Rule 13(d)-3(d)(1)(i) promulgated under the Exchange Act, and based on an aggregate total of 14,808,006 shares of the common stock of the Issuer outstanding as of May 30, 2025, as reported in the Prospectus, and after giving effect to the issuance of: (i) the ImmPACT Shares on July 2, 2025 as reported in the Prospectus and (ii) the PIPE Shares on July 25, 2025, as reported by the Issuer in its Current Report filed with the SEC on Form 8-K (File No. 001-40502) on July 25, 2025.


    SCHEDULE 13G

    Item 1. 
    (a)Name of issuer:

    Lyell Immunopharma, Inc.
    (b)Address of issuer's principal executive offices:

    201 Haskins Way, South San Francisco, CA, 94080.
    Item 2. 
    (a)Name of person filing:

    Explore Investments LLC, a Delaware limited liability company ("Explore") Jeffrey P. Bezos, an Individual ("Mr. Bezos" and together with Explore, the "Reporting Persons")
    (b)Address or principal business office or, if none, residence:

    The address of the principal business office of each of the Reporting Persons is: P.O. Box 6470 Surfside, FL 33154
    (c)Citizenship:

    Explore is formed in the State of Delaware. Mr. Bezos is a citizen of the United States of America.
    (d)Title of class of securities:

    Common Stock, par value $0.0001 per share
    (e)CUSIP No.:

    55083R104
    Item 3.If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
    (a)Checkbox not checked   Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
    (b)Checkbox not checked   Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
    (c)Checkbox not checked   Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
    (d)Checkbox not checked   Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
    (e)Checkbox not checked   An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
    (f)Checkbox not checked   An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
    (g)Checkbox not checked   A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
    (h)Checkbox not checked   A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
    (i)Checkbox not checked   A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
    (j)Checkbox not checked   A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
           please specify the type of institution:
    (k)Checkbox not checked   Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
     
    Item 4.Ownership
    (a)Amount beneficially owned:

    Reference to "beneficial ownership" of securities for purposes of this initial statement on Schedule 13G (this "Statement") shall be understood to refer to beneficial ownership as that term is defined in Rule 13d-3 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). As of July 25, 2025 (the "Event Date"), the Reporting Persons may each be deemed to directly or indirectly beneficially own an aggregate 1,040,964 shares of the Issuer's common stock. Explore is the direct holder of all the shares identified in the preceding paragraph. For purposes of Rule 13d-3 under the Exchange Act, all of the aforementioned securities of the Issuer directly held by Explore may be deemed to be beneficially owned by Mr. Bezos as the sole member of Explore. Notwithstanding, the filing of this Statement shall not be construed as an admission by Mr. Bezos, for purposes of Sections 13(d) or 13(g) of the Exchange Act or otherwise, as to beneficial ownership of the securities reported herein. Of the shares described in the preceding paragraph, 938,438 (the "PIPE Shares") were acquired in connection with the initial closing of a private placement transaction (the "PIPE Transaction") completed on the Event Date, pursuant to a Securities Purchase Agreement (the "Purchase Agreement") entered into by and among the Issuer, Explore, and certain other institutional and accredited investors (collectively, the "Purchasers") on July 24, 2025. For the avoidance of doubt, the number of securities reported in this Statement as beneficially owned by the Reporting Persons does not include any securities which may be issued at a future date pursuant to the Investor Call Right or Milestone Closing Put Right (each as defined in the Purchase Agreement), or any other provision of the Purchase Agreement. The foregoing description of the PIPE Transaction, the Investor Call Right, the Milestone Put Right, and the Purchase Agreement are not complete and are qualified in their entirety by reference to the full text of the: (i) Issuer's Current Report filed by the Issuer on Form 8-K (the "Form 8-K") with the U.S. Securities and Exchange Commission (the "SEC") on July 25, 2025 (File No. 001-40502) and (ii) Purchase Agreement, which was filed by the Issuer with the SEC as Exhibit 10.1 to the Form 8-K.
    (b)Percent of class:

    As of the Event Date, the Reporting Persons were each deemed to directly or indirectly beneficially own an aggregate 5.4% of the Issuer's outstanding common stock. The aforementioned percentage was calculated in accordance with Rule 13(d)-3(d)(1)(i) promulgated under the Exchange Act and based on an aggregate total of 14,808,006 shares of the Issuer's common stock outstanding as of May 30, 2025, as reported by the Issuer in its preliminary prospectus (the "Prospectus") (File No. 333-288769) dated July 18, 2025, incorporated in the Issuer's Form S-3 registration statement filed with the SEC on July 18, 2025, and after giving effect to the issuance of: (i) an additional 625,000 shares of common stock on July 2, 2025 as reported in the Prospectus and (ii) an additional 3,753,752 shares of common stock on July 25, 2025 upon completion of the PIPE Transaction as reported by the Issuer on the Form 8-K.
    (c)Number of shares as to which the person has:
     (i) Sole power to vote or to direct the vote:

    Explore 0 Mr. Bezos 0

     (ii) Shared power to vote or to direct the vote:

    Explore 1,040,964 Mr. Bezos 1,040,964

     (iii) Sole power to dispose or to direct the disposition of:

    Explore 0 Mr. Bezos 0

     (iv) Shared power to dispose or to direct the disposition of:

    Explore 1,040,964 Mr. Bezos 1,040,964

    Item 5.Ownership of 5 Percent or Less of a Class.
     
    Item 6.Ownership of more than 5 Percent on Behalf of Another Person.
     
    Not Applicable
    Item 7.Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
     
    Not Applicable
    Item 8.Identification and Classification of Members of the Group.
     
    Not Applicable
    Item 9.Notice of Dissolution of Group.
     
    Not Applicable

    Item 10.Certifications:
     
    By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

        SIGNATURE 
     
    After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

     
    Explore Investments LLC
     
    Signature:/s/ Paul Dauber
    Name/Title:Paul Dauber/its Manager
    Date:08/19/2025
     
    Jeffrey P. Bezos
     
    Signature:/s/ Jeffrey P. Bezos
    Name/Title:Jeffrey P. Bezos/an Individual
    Date:08/19/2025
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