SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 6)

NextNav Inc.

(Name of Issuer)

Common Stock, $0.0001 par value

(Title of Class of Securities)

65345N106

(CUSIP Number)

06/30/2026

(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 13G

CUSIP Number(s):

65345N106

Names of Reporting Persons

Joseph D. Samberg

Check the appropriate box if a member of a Group (see instructions)

(a)

(b)

Sec Use Only

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 13,110,000.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 13,110,000.00

Aggregate Amount Beneficially Owned by Each Reporting Person

13,110,000.00

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

Checkbox not checked

Percent of class represented by amount in row (9)

7.77 %

Type of Reporting Person (See Instructions)

Comment for Type of Reporting Person: The percentage in Row 11 is based upon 168,809,910 shares of Common Stock outstanding as of August 7, 2026 as reported on the Issuer's Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission on August 11, 2026 (the "Form 10-Q").

SCHEDULE 13G

CUSIP Number(s):

65345N106

Names of Reporting Persons

The Joseph D. Samberg Revocable Trust

Check the appropriate box if a member of a Group (see instructions)

(a)

(b)

Sec Use Only

Citizenship or Place of Organization

NEW YORK

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 10,500,000.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 10,500,000.00

Aggregate Amount Beneficially Owned by Each Reporting Person

10,500,000.00

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

Checkbox not checked

Percent of class represented by amount in row (9)

6.22 %

Type of Reporting Person (See Instructions)

Comment for Type of Reporting Person: The percentage in Row 11 is based upon 168,809,910 shares of Common Stock outstanding as of August 7, 2026 as reported on the Issuer's Form 10-Q.

SCHEDULE 13G

Item 1.

(a)

Name of issuer:

NextNav Inc.

(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. 6 to this Schedule 13G pursuant to Rule 13d-2(b).

(b)

Address or principal business office or, if none, residence:

1091 Boston Post Road, Rye, New York 10580

(c)

Citizenship:

See Row 4 of cover page for each Reporting Person

(d)

Title of class of securities:

Common Stock, $0.0001 par value

(e)

CUSIP No.:

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 10,500,000 shares of Common Stock and entities that could be deemed to be controlled by Mr. Samberg (the "Entities") directly hold 2,610,000 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 5 Percent or Less of a Class.

Not Applicable

Item 6.

Ownership of more than 5 Percent on Behalf of Another Person.

Not Applicable

Item 7.

Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.

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.

Certifications:

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

Signature:	/s/ Joseph D. Samberg
Name/Title:	Joseph D. Samberg
Date:	08/13/2026

The Joseph D. Samberg Revocable Trust

Signature:	/s/ Joseph D. Samberg
Name/Title:	Joseph D. Samberg/Trustee
Date:	08/13/2026