Amendment: SEC Form SCHEDULE 13D/A filed by MicroAlgo Inc.

Item 3 of the Schedule 13D is supplemented as follows: The Reporting Persons acquired the securities of the Issuer on March 25, 2025, by way of conversion of convertible notes. Item 4 below provides a general overview of the conversion transaction (defined in Item 4 below).

Item 4 of the Schedule 13D is supplemented as follows: The information set forth in Item 3 of this Schedule 13D is incorporated herein by reference. Convertible Note Purchase and Note Conversion On October 11, 2024, the Issuer entered into a Convertible Note Purchase Agreement (the "Note Purchase Agreement") with WiMi in connection with the issuance and sale of unsecured convertible notes in the aggregate principal amount of up to $25,000,000 and at an aggregate purchase price of up to $23,000,000 in a transaction exempt from registration under the Securities Act of 1933, as amended (the "Transaction"). On March 25, 2025, WiMi acquired 34,878,261 Class B ordinary shares in restricted shares by the conversion of convertible notes acquired under the Transaction. WiMi acquired additional shares of the Issuer to maintain a majority ownership stake of the Issuer. Except as stated herein, the Reporting Person has no present plans or proposals that relate to or would result in any of the actions required to be described in subsections (a) through (j) of Item 4 of Schedule 13D. The Reporting Person may, at any time, review or reconsider his positions with respect to the Issuer and formulate plans or proposals with respect to any of such matters, but except as described herein, has no present intention of doing so. The information contained in rows (7), (8), (9), (10), (11) and (13) of the cover page of this Schedule 13D and the corresponding footnotes, and the information set forth in or incorporated by reference in Item 2, Item 3, Item 5 and Item 6 of this Schedule 13D is hereby incorporated by reference in its entirety into this Item 4.

The responses to rows (7) through (13) of the cover page of this Schedule 13D and the corresponding footnotes are hereby incorporated by reference in their entirety in this Item 5.

See responses to Items 11 and 13 on the cover page.

See response to Rows (7), (8), (9) and (10) on the cover page.

Item 4 above summarizes the terms of the conversion transaction. A copy of the Convertible Note Purchase Agreement is attached as an exhibit to this Schedule 13D, and is incorporated herein by reference. Except as set forth herein, none of the Reporting Persons has any contracts, arrangements, understandings or relationships (legal or otherwise) with any person with respect to any securities of the Issuer, including but not limited to any contracts, arrangements, understandings or relationships concerning the transfer or voting of such securities, finder's fees, joint ventures, loan or option arrangements, puts or calls, guarantees of profits, division of profits or losses, or the giving or withholding of proxies.

Exhibit Number - Description 1 - Joint Filing Agreement. 2 - Convertible Note Purchase Agreement dated October 11, 2024 (Incorporation by reference to Exhibit 99.1 of the Issuer's Form 6-K furnished to the SEC on October 15, 2024).