# EDGAR Filing Document

**Accession Number:** 0001760624
**File Stem:** 0000950103-26-005837
**Filing Date:** 2026-4
**Character Count:** 11270
**Document Hash:** bfd434c247f1f7e95f6af28d173f2072
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000950103-26-005837.hdr.sgml**: 20260416

**ACCESSION NUMBER**: 0000950103-26-005837

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260414

**FILED AS OF DATE**: 20260416

**DATE AS OF CHANGE**: 20260416

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Rakuten Group, Inc.
- **CENTRAL INDEX KEY:** 0001294591
- **ORGANIZATION NAME:** International Corp Fin
- **STATE OF INCORPORATION:** M0
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39040
- **FILM NUMBER:** 26869142

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 1-14-1 TAMAGAWA
- **CITY:** SETAGAYA-KU
- **NON US STATE TERRITORY:** TOKYO
- **PROVINCE COUNTRY:** M0
- **ZIP:** 1580094
- **BUSINESS PHONE:** 81-50-5581-6910

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 1-14-1 TAMAGAWA
- **CITY:** SETAGAYA-KU
- **NON US STATE TERRITORY:** TOKYO
- **PROVINCE COUNTRY:** M0
- **ZIP:** 1580094

**FORMER NAME:**
- **FORMER CONFORMED NAME:** Rakuten, Inc.
- **DATE OF NAME CHANGE:** 20040619
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Rakuten Mobile, Inc.
- **CENTRAL INDEX KEY:** 0002035591

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** M0
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39040
- **FILM NUMBER:** 26869141

**BUSINESS ADDRESS:**
- **STREET 1:** CRIMSON HOUSE, 1-14-1 TAMAGAWA,
- **STREET 2:** SETAGAYA-KU
- **CITY:** TOKYO
- **STATE:** M0
- **ZIP:** 158-0094
- **BUSINESS PHONE:** 815055816910

**MAIL ADDRESS:**
- **STREET 1:** CRIMSON HOUSE, 1-14-1 TAMAGAWA,
- **STREET 2:** SETAGAYA-KU
- **CITY:** TOKYO
- **STATE:** M0
- **ZIP:** 158-0094
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Mikitani Hiroshi
- **CENTRAL INDEX KEY:** 0001760624

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39040
- **FILM NUMBER:** 26869143

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** C/O RAKUTEN MOBILE, INC.
- **STREET 2:** 1-14-1 TAMAGAWA, SETAGAYA-KU
- **CITY:** TOKYO
- **PROVINCE COUNTRY:** M0
**ISSUER**: 

**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

**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

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

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[x] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

[ ] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Mikitani Hiroshi<br><sub>(Last) (First) (Middle)</sub><br>1-14-1 TAMAGAWA<br>SETAGAYA-KU<br><sub>(Street)</sub><br>TOKYO, JAPAN 158-0094<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-04-14 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>AST SpaceMobile, Inc. [ ASTS ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Rakuten Group, Inc.<br><sub>(Last) (First) (Middle)</sub><br>1-14-1 TAMAGAWA<br>SETAGAYA-KU<br><sub>(Street)</sub><br>TOKYO, JAPAN 158-0094<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-04-14 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>AST SpaceMobile, Inc. [ ASTS ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Rakuten Mobile, Inc.<br><sub>(Last) (First) (Middle)</sub><br>1-14-1 TAMAGAWA<br>SETAGAYA-KU<br><sub>(Street)</sub><br>TOKYO, JAPAN 158-0094<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-04-14 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>AST SpaceMobile, Inc. [ ASTS ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Class A Common Stock | 2026-04-14 |  | S |  | 1690000<sup>(2)</sup> | D | 91.42<sup>(2)</sup> | 29330155<sup>(1)</sup> | I<sup>(1)</sup> | See footnote<sup>(1)</sup> |
| Class A Common Stock | 2026-04-15 |  | S |  | 1350000<sup>(3)</sup> | D | 86.22<sup>(3)</sup> | 27980155<sup>(1)</sup> | I<sup>(1)</sup> | See footnote<sup>(1)</sup> |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

---

### Footnotes:

(1) The shares of Class A Common Stock of the Issuer (the "Common Stock") set forth herein are held of record by Rakuten Mobile, Inc., a wholly-owned subsidiary of Rakuten Group, Inc. Hiroshi Mikitani is the founder, Chairman and Chief Executive Officer of Rakuten Group, Inc. and has voting and investment discretion with respect to the securities held of record by Rakuten Mobile, Inc. By reason of the provisions of Rule 13d-3 under the Securities Exchange Act of 1934, as amended, Mr. Mikitani and Rakuten Group, Inc. may be deemed to be the beneficial owner of the securities beneficially owned by Rakuten Mobile, Inc. Mr. Mikitani and Rakuten Group, Inc. hereby disclaim beneficial ownership of all such securities, except to the extent of any indirect pecuniary interest therein.

(2) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $87.50 to $103.96 per share, inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote 2 to this Form 4.

(3) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $84.04 to $88.71 per share, inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote 2 to this Form 4.

**Signature:** Hiroshi Mikitani /s/Hiroshi Mikitani  
**Date:** 2026-04-16

**Signature:** Rakuten Group, Inc. /s/Kentaro Hyakuno, Representative Director, Group Senior Executive Vice President  
**Date:** 2026-04-16

**Signature:** Rakuten Mobile, Inc. /s/Atsushi Maeda, Director, Executive Vice President and CFO  
**Date:** 2026-04-16

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**