Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 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 that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * SAMBERG JOSEPH D 2. Issuer Name and Ticker or Trading Symbol NEXTNAV INC. [NN] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 1901 BOSTON POST ROAD 3. Date of Earliest Transaction (Month/Day/Year) 11/13/2025 (Street) RYE, NY 10580 4. If Amendment, Date Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 11/13/2025 S 540,000 D $12.35 9,660,000 I By The Joseph D. Samberg Revocable Trust(1) Common Stock 11/13/2025 S 60,000 D $12.35 760,000 I By JDS TMT, LP(1) Common Stock 1,000,000 I By The Joe & Sandy Samberg Foundation, Inc.(1) Common Stock 400,000 I By NHW Ventures LLC(1) Common Stock 125,000 I By Zachary Abram Samberg Trust DTD 1/7/99(1) Common Stock 125,000 I By Max H Samberg Trust DTD 2/14/01(1) Common Stock 100,000 I By Acadia Woods Partners, LLC(1)

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Call Option (Right to Buy)

$20

11/14/2025

S

4,000

(2)

06/18/2026

Common Stock

400,000

$2.095(3)

0

I

By The Joseph D. Samberg Revocable Trust(1)

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
SAMBERG JOSEPH D 1901 BOSTON POST ROAD RYE, NY 10580		X

Signatures

/s/ Joseph Samberg		11/17/2025
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.
(2)	The call options expiring on June 18, 2026 were acquired in a series of transactions. These options were all immediately exercisable from the applicable date of purchase until their expiration.
(3)	The price reported in Column 8 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.05 to $2.20, inclusive. The reporting person undertakes to provide to NextNav Inc., any security holder of NextNav Inc., 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 footnote (3) to this Form 4.
Remarks: The exit box is checked because, after the sale of the 600,000 shares of the common stock of NextNav Inc. (the "Common Stock") and the sale of the call options representing 400,000 shares of Common Stock reflected in this Form 4, the reporting person is no longer a 10% owner.

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