# EDGAR Filing Document

**Accession Number:** 0001053507
**File Stem:** 0001193125-25-315968
**Filing Date:** 2025-12
**Character Count:** 12774
**Document Hash:** 6918328186d5e29cb691920bf6404adf
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-315968.hdr.sgml**: 20251211

**ACCESSION NUMBER**: 0001193125-25-315968

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D/A

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20251211

**DATE AS OF CHANGE**: 20251211

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** AST SpaceMobile, Inc.
- **CENTRAL INDEX KEY:** 0001780312
- **STANDARD INDUSTRIAL CLASSIFICATION:** COMMUNICATION SERVICES, NEC [4899]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-91129
- **FILM NUMBER:** 251565143

**BUSINESS ADDRESS:**
- **STREET 1:** MIDLAND INTL. AIR & SPACE PORT
- **STREET 2:** 2901 ENTERPRISE LANE
- **CITY:** MIDLAND
- **STATE:** TX
- **ZIP:** 79706
- **BUSINESS PHONE:** 432-276-3966

**MAIL ADDRESS:**
- **STREET 1:** MIDLAND INTL. AIR & SPACE PORT
- **STREET 2:** 2901 ENTERPRISE LANE
- **CITY:** MIDLAND
- **STATE:** TX
- **ZIP:** 79706

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** New Providence Acquisition Corp.
- **DATE OF NAME CHANGE:** 20190620
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** AMERICAN TOWER CORP /MA/
- **CENTRAL INDEX KEY:** 0001053507
- **STANDARD INDUSTRIAL CLASSIFICATION:** REAL ESTATE INVESTMENT TRUSTS [6798]
- **ORGANIZATION NAME:** 05 Real Estate & Construction
- **EIN:** 650723837
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A

**BUSINESS ADDRESS:**
- **STREET 1:** 116 HUNTINGTON AVE
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02116
- **BUSINESS PHONE:** 6173757500

**MAIL ADDRESS:**
- **STREET 1:** 116 HUNTINGTON AVE
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02116

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AMERICAN TOWER SYSTEMS CORP
- **DATE OF NAME CHANGE:** 19980128

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**(Amendment No. 1)**

**AST SpaceMobile, Inc.**

*(Name of Issuer)*

**Class A Common Stock, par value $0.0001 per share**

*(Title of Class of Securities)*

**00217D100**

*(CUSIP Number)*

**American Tower Corporation**<br>222 Berkeley St.<br>Boston MA 02116<br>(617) 375-7500

*(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)*

**12/09/2025**

*(Date of Event Which Requires Filing of this Statement)*

| **CUSIP No.** | **00217D100** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**American Tower Corporation** | Name of reporting person<br>**American Tower Corporation** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**2382036.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**2382036.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**2382036.00** | Aggregate amount beneficially owned by each reporting person<br>**2382036.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**0.84%** | Percent of class represented by amount in Row (11)<br>**0.84%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**CO** | Type of Reporting Person (See Instructions)<br>**CO** | |

---

**Comment for Reporting Person:** The amount in row 11 is comprised of (i) 211,379 shares of Class A Common Stock of AST SpaceMobile, Inc. (the "Issuer") (the "Class A Common Stock") and (ii) 2,170,657 common units (the "LLC Units") of AST & Science LLC ("AST LLC"). In addition, the Reporting Persons beneficially own 2,170,657 shares of Class B Common Stock of the Issuer (the "Class B Common Stock"). Each share of Class A Common Stock carries one vote per share and each share of Class B Common Stock carries one vote per share and no economic rights. The Reporting Persons may redeem or exchange one LLC Unit for one share of Class A Common Stock or, under certain circumstances, a cash payment based on the value of Class A Common Stock. At the time of any such redemption or exchange, the Reporting Persons would forfeit an equivalent number of shares of Class B Common Stock to the Issuer.

As discussed in Item 2 of the Schedule 13D (as defined below), the other Stockholder Parties (as defined therein) 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.

This calculation in row 13 is based on the aggregate number of 282,230,456 shares of Class A Common Stock outstanding, which is the sum of (i) 277,628,960 outstanding shares of Class A Common Stock as of November 6, 2025, as reported by the Issuer in its Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission (the "SEC") on November 10, 2025, (ii) 2,048,849 shares of Class A Common Stock issued by the Issuer in a registered direct offering as disclosed in the Issuer's Prospectus Supplement filed pursuant to Rule 424(b)(5) filed with the SEC on November 13, 2025, (iii) 381,990 shares of Class A Common Stock issued by the Issuer in a registered direct offering as disclosed in the Issuer's Prospectus Supplement filed pursuant to Rule 424(b)(5) filed with the SEC on November 14, 2025, and (iv) 2,170,657 LLC Units beneficially owned by the Reporting Persons that are redeemable for Class A Common Stock on a one-to-one basis.

| **CUSIP No.** | **00217D100** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**ATC TRS II LLC** | Name of reporting person<br>**ATC TRS II LLC** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**2382036.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**2382036.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**2382036.00** | Aggregate amount beneficially owned by each reporting person<br>**2382036.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**0.84%** | Percent of class represented by amount in Row (11)<br>**0.84%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**CO** | Type of Reporting Person (See Instructions)<br>**CO** | |

---

**Comment for Reporting Person:** The amount in row 11 is comprised of (i) 211,379 shares of Class A Common Stock and (ii) 2,170,657 LLC Units. In addition, the Reporting Persons beneficially own 2,170,657 shares of Class B Common Stock. Each share of Class A Common Stock carries one vote per share and each share of Class B Common Stock carries one vote per share and no economic rights. The Reporting Persons may redeem or exchange one LLC Unit for one share of Class A Common Stock or, under certain circumstances, a cash payment based on the value of Class A Common Stock. At the time of any such redemption or exchange, the Reporting Persons would forfeit an equivalent number of shares of Class B Common Stock to the Issuer.

As discussed in Item 2 of the Schedule 13D (as defined below), the other Stockholder Parties (as defined therein) 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.

This calculation in row 13 is based on  282,230,456 shares of Class A Common Stock outstanding, which is the sum of (i) 277,628,960 outstanding shares of Class A Common Stock as of November 6, 2025, as reported by the Issuer in its Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission (the "SEC") on November 10, 2025, (ii) 2,048,849 shares of Class A Common Stock issued by the Issuer in a registered direct offering as disclosed in the Issuer's Prospectus Supplement filed pursuant to Rule 424(b)(5) filed with the SEC on November 13, 2025, (iii) 381,990 shares of Class A Common Stock issued by the Issuer in a registered direct offering as disclosed in the Issuer's Prospectus Supplement filed pursuant to Rule 424(b)(5) filed with the SEC on November 14, 2025, and (iv) 2,170,657 LLC Units beneficially owned by the Reporting Persons that are redeemable for Class A Common Stock on a one-to-one basis.

**Item 1. Security and Issuer**

**(a) Title of Class of Securities:**
Class A Common Stock, par value $0.0001 per share

**(b) Name of Issuer:**
AST SpaceMobile, Inc.

**(c) Address of Issuer's Principal Executive Offices:**
Midland Intl. Air & Space Port, 2901 Enterprise Lane, Midland, TX, 79706

This Amendment No. 1 to Schedule 13D ("Amendment No. 1") amends and supplements the Schedule 13D originally filed with the Securities and Exchange Commission (the "SEC") on April 16, 2021 (the "Schedule 13D"), relating to the shares of Class A Common Stock, par value $0.0001 per share (the "Class A Common Stock"), of AST SpaceMobile, Inc., a Delaware corporation (the "Issuer"). This Amendment No. 1 amends and restates Items 5(a)-(c) as set forth below. Unless specified otherwise, capitalized terms used herein without definition shall have the meanings set forth in the Schedule 13D.

**Item 5. Interest in Securities of the Issuer**

**(a)**
The responses set forth in rows 11 and 13 on the cover page to this Amendment No. 1 are incorporated by reference into this Item 5.

**(b)**
The responses set forth in rows 7 through 10 on the cover page to this Schedule 13D are incorporated by reference into this Item 5.

**(c)**
On December 9, 2025, the Reporting Persons sold an aggregate of 2,288,621 shares of Class A Common Stock pursuant to a block trade with Barclays Capital Inc. at a price of $69.75 per share.

### 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.

**Reporting Person:** American Tower Corporation

**Signature:** /s/ Rodney M. Smith

**Name/Title:** Executive Vice President, Chief Financial Officer and Treasurer

**Date:** 12/11/2025

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.

**Reporting Person:** ATC TRS II LLC

**Signature:** /s/ Rodney M. Smith

**Name/Title:** Executive Vice President, Chief Financial Officer and Treasurer

**Date:** 12/11/2025