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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Name of Issuer)

(Title of Class of Securities)

(CUSIP Number)

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13D/A 0001493152-22-006680 0001680225 XXXXXXXX LIVE 16 Class A Common Stock 11/19/2025 false 0001780312 00217D100 AST SpaceMobile, Inc. Midland Intl. Air & Space Port 2901 Enterprise Lane Midland TX 79706 Abel Avellan (432) 276-3966 Midland Intl. Air & Space Port 2901 Enterprise Lane Midland TX 79706 0001680225 N Abel Avellan PF N X1 78163078.00 0.00 78163078.00 0.00 78163078.00 N 21.9 IN (1) The Aggregate Amount Beneficially Owned by Each Reporting Person in Row (11) with Sole Voting Power in Row (7) and Sole Dispositive Power in Row (9) comprised of (i) 78,163,078 shares of Class A Common Stock of AST SpaceMobile, Inc. (the "Issuer") that may be issued upon redemption by the Reporting Person of 78,163,078 common units (the "AST Common Units") of AST & Science LLC ("AST"). In addition, the Reporting Person beneficially owns 78,163,078 shares of Class C Common Stock of the Issuer (the "Class C Common Stock"). Each share of Class A Common Stock carries one vote per share and each share of Class C Common Stock carries ten votes per share and no economic rights. From and after April 6, 2022, the Reporting Person may redeem or exchange one AST Common Unit for one share of Class A Common Stock or, under certain circumstances and at the election of the Issuer, a cash payment based on the value of Class A Common Stock. At the time of any redemption or exchange, the Reporting Person would forfeit an equivalent number of shares of Class C Common Stock to the Issuer. The Reporting Person did not redeem or exchange AST Common Units as of November 19, 2025. As discussed in Item 2 of the Original Filing, the other Stockholder Parties (as defined herein) are not included as reporting persons in this Schedule 13D, and the Reporting Persons expressly disclaim beneficial ownership of the shares of Class A Common Stock beneficially held by the other Stockholders Parties. (2) The Percent of Class Represented by Amount in Row (13) are based upon 356,933,188 shares of Class A Common Stock outstanding comprised of (i) 278,770,110 shares of Class A Common Stock outstanding as of November 19, 2025, and (ii) 78,163,078 shares of Class A Common Stock issuable upon the redemption or exchange of the AST Common Units owned by the Reporting Person. This percentage does not represent the Reporting Person's current voting interest in the Issuer, as the Reporting Person has a 72.9% voting interest in the Issuer by virtue of his ownership of all of the shares of Class C Common Stock of the Issuer. AMENDMENT NO. 16 TO SCHEDULE 13D This Amendment No. 16 to Schedule 13D (this "Amendment No. 16") amends and supplements the initial Schedule 13D filed by Mr. Abel Avellan with the Securities and Exchange Commission (the "SEC") on March 11, 2022 (the "Original Filing"), as amended by Amendment No. 15 to Schedule 13D filed by Mr. Avellan with the SEC on October 31, 2025 ("Amendment No. 15"), as amended by Amendment No. 14 to Schedule 13D filed by Mr. Avellan with the SEC on July 15, 2025 ("Amendment No. 14"), as amended by Amendment No. 13 to Schedule 13D filed by Mr. Avellan with the SEC on June 20, 2025 ("Amendment No. 13"), Amendment No. 12 to Schedule 13D filed by Mr. Avellan with the SEC on January 27, 2025 ("Amendment No. 12"), as amended by Amendment No. 11 to Schedule 13D filed by Mr. Avellan with the SEC on November 20, 2024 ("Amendment No. 11"), as amended by Amendment No. 10 to Schedule 13D filed by Mr. Avellan with the SEC on October 15, 2024 ("Amendment No. 10"), as amended by Amendment No. 9 to Schedule 13D filed by Mr. Avellan with the SEC on September 26, 2024 ("Amendment No. 9"), as amended by Amendment No. 8 to Schedule 13D filed by Mr. Avellan with the SEC on August 26, 2024 ("Amendment No. 8"), Amendment No. 7 to Schedule 13D filed by Mr. Avellan with the SEC on July 11, 2024 ("Amendment No. 7"), Amendment No. 6 to Schedule 13D filed by Mr. Avellan with the SEC on June 14, 2024 ("Amendment No. 6"), Amendment No. 5 to Schedule 13D filed by Mr. Avellan with the SEC on March 6, 2024 ("Amendment No. 5"), Amendment No. 4 to Schedule 13D filed by Mr. Avellan with the SEC on January 25, 2024 ("Amendment No. 4"), Amendment No. 3 to Schedule 13D filed by Mr. Avellan with the SEC on July 6, 2023 ("Amendment No. 3"), Amendment No. 2 to Schedule 13D filed by Mr. Avellan with the SEC on May 2, 2023 ("Amendment No. 2") and Amendment No. 1 to Schedule 13D filed by Mr. Avellan with the SEC on December 13, 2022 ("Amendment No. 1"). This Amendment No. 16 amends and supplements the Original Filing, Amendment No. 1, Amendment No. 2, Amendment No. 3, Amendment No. 4, Amendment No. 5, Amendment No. 6, Amendment No. 7, Amendment No. 8, Amendment No. 9, Amendment No. 10, Amendment No. 11, Amendment No. 12, Amendment No. 13, Amendment No. 14 and Amendment No. 15 as specifically set forth herein and is being filed solely due to an increase in the Issuer's total number of outstanding shares of Class A Common Stock and not as a result of any transactions by the Reporting Person. All capitalized terms contained herein but not otherwise defined shall have the meanings ascribed as such terms in the Original Filing. Information given in response to each item shall be deemed incorporated by reference in all other items, as applicable. Class A Common Stock AST SpaceMobile, Inc. Midland Intl. Air & Space Port 2901 Enterprise Lane Midland TX 79706 Item 4 of the Schedule 13D is hereby amended to include the following: The information set forth in Item 6 of this Amendment No. 16 including without limitation information as to the rights and obligations of the Reporting Person pursuant to the terms of the agreements, instruments and other matters described therein, is hereby incorporated by reference. Item 5 is amended and restated to read as follows: As of the date hereof, the aggregate number and percentage of shares of Class A Common Stock beneficially owned by Mr. Avellan are as follows: Amount beneficially owned: 78,163,078 Percent of class: 21.9% i. Sole power to vote or direct the vote: 78,163,078 ii. Shared power to vote: 0 iii. Sole power to dispose or direct the disposition of: 78,163,078 iv. Shared power to dispose or direct the disposition of: 0 The reporting Person may be deemed to beneficially own 78,163,078 shares of Class A Common Stock issuable upon conversion of 78,163,078 AST Common Units held of record by the Reporting Person. As discussed in Item 2 of the Original Filing, the other Stockholder Parties are not included as reporting persons in the Original Filing, Amendment No. 1, Amendment No. 2, Amendment No. 3, Amendment No. 4, Amendment No. 5, Amendment No. 6, Amendment No. 7, Amendment No. 8, Amendment No. 9, Amendment No. 10, Amendment No. 11, Amendment No. 12, Amendment No. 13, Amendment No. 14, Amendment No. 15, and this Amendment No. 16, and the Reporting Person expressly disclaims beneficial ownership of the shares of Class A Common Stock held by the other Stockholder Parties. During the past 60 days (other than as set forth in this Amendment No. 16), the Reporting Person has not effected any transactions with respect to the Class A Common Stock. None Not applicable On November 19, 2025, AA Gables, LLC ("AA Gables"), a Delaware limited liability company of which the Reporting Person is the sole member and managing member, entered into an amendment agreement to its Forward Contract (the "Amendment") with an unaffiliated dealer covering up to a maximum of 2,500,000 shares of Class A Common Stock (the "Subject Shares") in order to amend the settlement dates, Floor Price (as defined below) and Cap Price (as defined below) of the Forward Contract. As amended by the Amendment, the Forward Contract obligates AA Gables to deliver to the dealer the number of Subject Shares (or, at AA Gables' election, an equivalent amount of cash) on specified dates in March of 2027. The Amendment did not involve any change to the number of Subject Shares covered by the Forward Contract or the number of Pledged Securities thereunder. The transaction is divided into four components, each comprising up to 625,000 shares of Class A Common Stock (the "Component Shares"). The number of Component Shares (or the equivalent amount of cash if AA Gables elects cash settlement), to be delivered to the dealer on the related settlement date will be based on the volume-weighted average price per share of Class A Common Stock on the related valuation date (the "Settlement Price"). The number of shares of Class A Common Stock (or, in each case, the equivalent amount of cash if AA Gables elects cash settlement), to be delivered to the dealer on the settlement date of each component will be determined, as amended pursuant to the Amendment, as follows: (A) if the Settlement Price is less than or equal to $56.0564 (the "Floor Price"), AA Gables will deliver the Component Shares; (B) if the Settlement Price is less than or equal to $79.6590 (the "Cap Price"), but greater than the Floor Price, AA Gables will deliver a number of shares of Class A Common Stock equal to (i) the Component Shares, multiplied by a fraction, the numerator of which is the Floor Price and the denominator of which is the Settlement Price; and (C) if the Settlement Price is greater than the Cap Price, AA Gables will deliver a number of shares of Class A Common Stock equal to (i) the Component Shares, multiplied by (ii) a fraction, the numerator of which is the sum of (x) the Floor Price and (y) the Settlement Price minus the Cap Price, and the denominator of which is the Settlement Price. In connection with the Amendment, AA Gables received an aggregate cash payment of approximately $10.7 million, reflecting the economic effect of the Amendment to the Forward Contract, and which is in addition to the $42.0 million aggregate upfront proceeds AA Gables received when the Forward Contract was originally entered into. The foregoing description of the Amendment and the Forward Contract does not purport to be complete and is subject to, and qualified in its entirety by reference to the Amendment, which is filed as Exhibit 8 to this Schedule 13D and to the Master Confirmation, the Supplemental Confirmation, the Pricing Notice and the Issuer Agreement, which are filed as Exhibits 4, 5, 6 and 7 to the Schedule 13D, respectively, and described in greater detail in Amendment No. 11 to the Schedule 13D. Exhibit 8 Prepaid Variable Share Forward Transaction Amendment Agreement, dated November 19, 2025* *Certain portions of this exhibit have been omitted and filed separately with the Securities and Exchange Commission under a confidential treatment request pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. Abel Avellan /s/ Abel Avellan AST SpaceMobile, Inc. Chairman and Chief Executive Officer 11/21/2025