# EDGAR Filing Document

**Accession Number:** 0001264542
**File Stem:** 0001104659-25-115535
**Filing Date:** 2025-11
**Character Count:** 12346
**Document Hash:** b03d70c51d061a93fc555c8de1169942
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-115535.hdr.sgml**: 20251124

**ACCESSION NUMBER**: 0001104659-25-115535

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

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20251124

**DATE AS OF CHANGE**: 20251124

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** NEXTNAV INC.
- **CENTRAL INDEX KEY:** 0001865631
- **STANDARD INDUSTRIAL CLASSIFICATION:** SEARCH, DETECTION, NAVIGATION, GUIDANCE, AERONAUTICAL SYS [3812]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13G/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-93005
- **FILM NUMBER:** 251514663

**BUSINESS ADDRESS:**
- **STREET 1:** 11911 FREEDOM DRIVE
- **STREET 2:** STE 200
- **CITY:** RESTON
- **STATE:** VA
- **ZIP:** 20190
- **BUSINESS PHONE:** 800-775-0982

**MAIL ADDRESS:**
- **STREET 1:** 11911 FREEDOM DRIVE
- **STREET 2:** STE 200
- **CITY:** RESTON
- **STATE:** VA
- **ZIP:** 20190

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Spartacus Acquisition Shelf Corp.
- **DATE OF NAME CHANGE:** 20210603
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** SAMBERG JOSEPH D
- **CENTRAL INDEX KEY:** 0001264542

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

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

**MAIL ADDRESS:**
- **STREET 1:** C/O HAWKES FINANCIAL, LLC
- **STREET 2:** 77 BEDFORD ROAD
- **CITY:** KATONAH
- **STATE:** NY
- **ZIP:** 10536

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

## SCHEDULE 13G

### Under the Securities Exchange Act of 1934

**(Amendment No. 5)**

**Issuer:** NextNav Inc.

**Title of Class of Securities:** Common Stock, $0.0001 par value

**CUSIP Number:** 65345N106

**Date of Event Which Requires Filing of this Statement:** 11/21/2025

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

- [ ] Rule 13d-1(b)

- [x] Rule 13d-1(c)

- [ ] Rule 13d-1(d)

---

| 1. | Names of Reporting Persons<br>Joseph D. Samberg | Names of Reporting Persons<br>Joseph D. Samberg |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>X1 | Citizenship or Place of Organization<br>X1 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>13755600.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>13755600.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>13755600.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>13755600.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>10.09% | Percent of Class Represented by Amount in Row (9)<br>10.09% |
| 12. | Type of Reporting Person (See Instructions)<br>IN | Type of Reporting Person (See Instructions)<br>IN |

**Comment for Type of Reporting Person:** The numbers in Rows 6, 8 and 9 include 1,500,000 shares of the common stock of the Issuer (the "Common Stock") issuable upon the exercise of publicly traded warrants (the "Public Warrants"), held by entities that could be deemed to be controlled by Mr. Samberg, with an exercise price of $11.50 per share of Common Stock that are immediately exercisable and expire on October 28, 2026.

The percentage in Row 11 is based upon 136,329,088 shares of Common Stock outstanding (1) 134,829,088 shares of Common Stock outstanding as of November 3, 2025 as reported on the Issuer's Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission (the "SEC") on November 6, 2025 and (2) 1,500,000 shares of Common Stock issuable upon the exercise of the Public Warrants.

---

| 1. | Names of Reporting Persons<br>The Joseph D. Samberg Revocable Trust | Names of Reporting Persons<br>The Joseph D. Samberg Revocable Trust |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>NY | Citizenship or Place of Organization<br>NY |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>11145600.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>11145600.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>11145600.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>11145600.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>8.18% | Percent of Class Represented by Amount in Row (9)<br>8.18% |
| 12. | Type of Reporting Person (See Instructions)<br>OO | Type of Reporting Person (See Instructions)<br>OO |

**Comment for Type of Reporting Person:** The numbers in Rows 6, 8 and 9 include 1,400,000 shares of Common Stock issuable upon the exercise of the Public Warrants held by the Revocable Trust (as defined below).

The percentage in Row 11 is based upon 136,229,088 shares of Common Stock outstanding representing (1) 134,829,088 shares of Common Stock outstanding as of November 3, 2025 as reported on the Issuer's Quarterly Report on Form 10-Q filed with the SEC on November 6, 2025, and (2) 1,400,000 shares of Common Stock issuable upon the exercise of the Public Warrants held by the Revocable Trust.

---

**Item 1(a). Name of Issuer:**
NextNav Inc.

**Item 1(b). Address of Issuer's Principal Executive Offices:**
11911 Freedom Dr., Ste. 200, Reston, VA 20190

**Item 2(a). Name of Person Filing:**
The names of the persons filing this report (each a "Reporting Person", collectively, the "Reporting Persons") are (1) Joseph D. Samberg ("Mr. Samberg"); and (2) The Joseph D. Samberg Revocable Trust (the "Revocable Trust").

The Reporting Persons are filing this Amendment No. 5 to this Schedule 13G pursuant to Rule 13d-2(d) because on November 21, 2025, entities that could be deemed to be controlled by Mr. Samberg beneficially owned, in the aggregate, more than 10% of the outstanding Common Stock as a result of the purchase of the Public Warrants exercisable for 500,000 shares of Common Stock and Mr. Samberg became subject to Section 16 following that transaction.

**Item 2(b). Address of Principal Business Office:**
1091 Boston Post Road, Rye, New York 10580

**Item 2(c). Citizenship:**
See Row 4 of cover page for each Reporting Person

**Item 2(d). Title of Class of Securities:**
Common Stock, $0.0001 par value

**Item 2(e). CUSIP Number:**
65345N106

**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) [ ] Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).

(b) [ ] Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).

(c) [ ] Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).

(d) [ ] Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).

(e) [ ] An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);

(f) [ ] An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);

(g) [ ] A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);

(h) [ ] A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

(i) [ ] 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) [ ] 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) [ ] Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).

**Item 4. Ownership:**

**(a) Amount beneficially owned:**

See Row 9 of cover page for each Reporting Person.
Mr. Samberg does not directly hold any shares of Common Stock. The Revocable Trust, of which Mr. Samberg serves as trustee, directly holds 9,745,600 shares of Common Stock and Public Warrants that are exercisable for 1,400,000 shares of Common Stock, and entities that could be deemed to be controlled by Mr. Samberg (the "Entities") directly hold 2,510,000 shares of Common Stock and Public Warrants that are exercisable for 100,000 shares of Common Stock. Mr. Samberg may be deemed to beneficially own the securities directly held by the Revocable Trust and the Entities.
The filing of this statement should not be construed as an admission that any of the Reporting Persons is, for the purposes of Sections 13 of the Securities Exchange Act of 1934, the beneficial owner of the securities reported herein.

**(b) Percent of class:**

See Row 11 of cover page for each Reporting Person and the Comments thereto.

**(c) Number of shares as to which the person has:**

**(i) Sole power to vote or to direct the vote:**

See Row 5 of cover page for each Reporting Person and the Comments thereto.

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

See Row 6 of cover page for each Reporting Person and the Comments thereto.

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

See Row 7 of cover page for each Reporting Person and the Comments thereto.

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

See Row 8 of cover page for each Reporting Person and the Comments thereto.

**Item 5. Ownership of Five Percent or Less of a Class.**

[x] If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following.

**Item 6. Ownership of More than 5 Percent on Behalf of Another Person.**

Not Applicable

**Item 7. Identification and Classification of the Subsidiary**

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. Certification:**

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.

**Joseph D. Samberg**

**Date:** 11/24/2025

**By:** /s/ Joseph D. Samberg

**Name & Title:** Joseph D. Samberg

**The Joseph D. Samberg Revocable Trust**

**Date:** 11/24/2025

**By:** /s/ Joseph D. Samberg

**Name & Title:** Joseph D. Samberg/Trustee