Sec Form 4/A Filing - SUBIN NEIL S @ NEXTNAV INC. - 2025-03-12

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person SUBIN NEIL S 2. Issuer Name and Ticker or Trading Symbol NEXTNAV INC. [ NN] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 11911 FREEDOM DR., STE. 200 3. Date of Earliest Transaction (MM/DD/YY) 03/12/2025 (Street) RESTON, VA20190 4. If Amendment, Date Original Filed (MM/DD/YY) 03/14/2025 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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 5.00% Senior Secured Convertible Notes due 2028 $ 12.56 03/12/2025 P 501,592 ( 1 ) 03/27/2025( 2 ) 06/30/2028 Common Stock 501,592 ( 1 ) $ 6,300,000 ( 2 ) 501,592 ( 1 ) I Persian Road I, LP ( 2 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other SUBIN NEIL S 11911 FREEDOM DR., STE. 200 RESTON, VA20190 X Signatures /s/ Christian Gates by power of attorney 03/31/2025 Signature of Reporting Person Date

Explanation of Responses:

( 1 )This Form 4/A is being filed to correct (1) the number of derivative securities acquired, in Column 5 of Table II; (2) the number of shares underlying derivative security, in Column 7 of Table II; and (3) the number of derivative securities beneficially owned following reported transaction, in Column 9 of Table II, which were inadvertently reported incorrectly on the reporting person's Form 4 filed with the U.S. Securities and Exchange Commission on March 14, 2025. ( 2 )Pursuant to a Note Purchase Agreement with NextNav Inc. (the "Issuer"), dated March 12, 2025 (the "NPA"), the reporting person, through Persian Road I, LP, a limited partnership managed by thereporting person, purchased $6,300,000 aggregate principal amount of the Issuer's 5.00% Senior Secured Convertible Notes due 2028 (the "2028 Notes"), at a price of 100% of the principal amount.The 2028 Notes are convertible, as of the date the 2028 Notes are issued upon the closing of the NPA on March 27, 2025, into the Issuer's shares of common stock at a price of $12.56 per share, andshall mature on June 30, 2028.

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).

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