SEC FORM 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

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

1. Name and Address of Reporting Person ^*

FIG Buyer GP, LLC

(Last)

(First)

(Middle)

1345 AVENUE OF THE AMERICAS, 46TH FLOOR

(Street)

NEW YORK

10105

(City)

(State)

(Zip)

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)

3. Date of Earliest Transaction (Month/Day/Year)
06/17/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

	Form filed by One Reporting Person
X	Form filed by More than One Reporting Person

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common stock, par value $0.0001 per share	06/17/2026		C⁽¹⁾		3,989,738	A	$ 12.56	3,989,738	I	See Footnotes ⁽²⁾ ⁽³⁾ ⁽⁴⁾ ⁽⁵⁾ ⁽⁸⁾
Common stock, par value $0.0001 per share								2,500,000	I	See Footnotes ⁽³⁾ ⁽⁴⁾ ⁽⁵⁾ ⁽⁶⁾ ⁽⁸⁾
Common stock, par value $0.0001 per share								11,678,054	I	See Footnotes ⁽³⁾ ⁽⁴⁾ ⁽⁵⁾ ⁽⁷⁾ ⁽⁸⁾

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 Securities Underlying Derivative Security (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: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
5.00% Senior Secured Convertible Notes due 2028	$ 12.56	06/17/2026		C⁽¹⁾			50,000,000	⁽¹⁾	06/30/2028	Common Stock	3,989,738	$ 0	0	I	See Footnotes ⁽²⁾ ⁽³⁾ ⁽⁴⁾ ⁽⁵⁾ ⁽⁸⁾

Explanation of Responses:

1. The 5.00% Senior Secured Notes due 2028 (the "Convertible Notes") are convertible at any time into a number of shares of Common Stock equal to (i) the sum of the then-outstanding principal amount of the Convertible Notes to be converted plus all accrued and unpaid interest to the date of the conversion divided by (ii) $12.56, subject to the terms of the Note Purchase Agreement.

2. Held directly by CF NNAV-CNV LLC ("CF NNAV-CNV"). FCOF V UL Investments LLC, a Delaware limited liability company ("FCOF V UL"), is the majority member of CF NNAV-CNV. Fortress Credit Opportunities Fund V(A) L.P., a Cayman limited partnership ("FCOF V(A)"), FCOF V B Investments LLC, a Delaware limited liability company, FCOF V CDG Investments LLC, a Delaware limited liability company ("FCOF V CDG Investments"), and Fortress Credit Opportunities Fund V(E) L.P., a Delaware limited partnership ("FCOF V(E)") collectively hold a 100% interest in FCOF V UL.

3. FCO Fund V GP LLC, a Delaware limited liability company ("FCO Fund V GP") is the general partner of FCOF V(A), Fortress Credit Opportunities Fund V(B) L.P., a Cayman limited partnership ("FCOF V(B)"), Fortress Credit Opportunities Fund V(C) L.P., a Cayman limited partnership ("FCOF V(C)"), Fortress Credit Opportunities Fund V(D) L.P., a Cayman limited partnership ("FCOF V(D)"), FCOF V(E) and Fortress Credit Opportunities Fund V(G) L.P., a Cayman limited partnership ("FCOF V(G)"). Fortress Credit Opportunities V Advisors LLC, a Delaware limited liability company ("FCO V Advisors"), is the investment advisor of FCOF V(A), FCOF V(B), FCOF V(D), FCOF V(E) and FCOF V(G). Fortress Credit Opportunities V-C Advisors LLC, a Delaware limited liability company ("FCO V-C Advisors") is the investment advisor of FCOF V(C).

4. FIG LLC, a Delaware limited liability company ("FIG") holds all of the interests in FCO V Advisors and FCO V-C Advisors. Hybrid GP Holdings (Cayman) LLC, a Delaware limited liability company ("Hybrid GP Holdings (Cayman)") holds all of the interests in FCO Fund V GP. Hybrid GP Holdings LLC, a Delaware limited liability company ("Hybrid GP Holdings") holds all of the interests in Hybrid GP Holdings (Cayman).

5. Fortress Operating Entity I LP, a Delaware limited partnership ("FOE I"), is the managing member of Hybrid GP Holdings, and the owner of all of the issued and outstanding interests of FIG. FIG Blue LLC, a Delaware limited liability company ("FIG Blue"), is the general partner of FOE I. FIG Blue is wholly owned by Fortress Investment Group LLC, a Delaware limited liability company ("Fortress Investment Group"). FINCO I Intermediate Holdco LLC, a Delaware limited liability company ("FINCO I IH"), is the sole member of Fortress Investment Group. FINCO I LLC, a Delaware limited liability company, is the sole member of FINCO I IH. FIG Parent, LLC, a Delaware limited liability company ("FIG Parent"), is the sole member of FINCO I LLC. Foundation Holdco LP, a Delaware limited partnership ("Foundation Holdco"), is the sole member of FIG Parent. FIG Buyer GP, LLC, a Delaware limited liability company is the general partner of Foundation Holdco.

6. Held directly by CF NNAV-P LLC ("CF NNAV-P"). FCOF V UB Investments L.P., a Cayman Islands limited partnership ("FCOF V UB"), is the majority member of CF NNAV-P. FCOF V(A), FCOF V(B), FCOF V(C), FCOF V(D), FCOF V(E) and FCOF V(G), collectively hold a 100% interest in FCOF V UB.

7. Held directly by CF NNAV-E LLC ("CF NNAV-E"). FCOF V UST LLC, a Delaware limited liability company ("FCOF V UST") is the majority member of CF NNAV-E. FCOF V CDG Investments is the majority member of FCOF V UST. FCOF V(G) is the majority member of FCOF V CDG Investments.

8. Each reporting person disclaims beneficial ownership of all reported securities except to the extent of its pecuniary interest therein and the inclusion of the securities in this report shall not be deemed to be an admission of beneficial ownership of the reported shares for the purposes of Section 16 or otherwise.

Remarks:

This Form 4 is one of two reports relating to the same transactions being filed jointly by FIG Buyer GP, LLC, Fortress Investment Group LLC, Hybrid GP Holdings LLC, Hybrid GP Holdings (Cayman) LLC, Fortress Operating Entity I L.P., FIG Blue LLC, FIG LLC, FCOF V CDG Investments LLC, FCO Fund V GP LLC, Fortress Credit Opportunities V Advisors LLC, Foundation Holdco LP, FIG Parent, LLC, FINCO I LLC, FINCO I Intermediate Holdco LLC, CF NNAV-E LLC and FCOF V UST LLC.

	/s/ David N. Brooks - for FIG Buyer GP, LLC, By: David N. Brooks, its Secretary	06/22/2026
	** Signature of Reporting Person	Date
	/s/ David N. Brooks - for Fortress Investment Group LLC, By: David N. Brooks, its Secretary	06/22/2026
	** Signature of Reporting Person	Date
	/s/ David N. Brooks - for Hybrid GP Holdings LLC, By: David N. Brooks, its Secretary	06/22/2026
	** Signature of Reporting Person	Date
	/s/ David N. Brooks - for Hybrid GP Holdings (Cayman) LLC, By: Hybrid GP Holdings LLC, By: David N. Brooks, its Secretary	06/22/2026
	** Signature of Reporting Person	Date
	/s/ David N. Brooks - for Fortress Operating Entity I L.P., By: David N. Brooks, its Secretary	06/22/2026
	** Signature of Reporting Person	Date
	/s/ David N. Brooks - for FIG Blue LLC, By: David N. Brooks, its Secretary	06/22/2026
	** Signature of Reporting Person	Date
	/s/ David N. Brooks - for FIG LLC, By: David N. Brooks, its Secretary	06/22/2026
	** Signature of Reporting Person	Date
	/s/ David N. Brooks - for FCOF V CDG Investments LLC, By: David N. Brooks, its Secretary	06/22/2026
	** Signature of Reporting Person	Date
	/s/ David N. Brooks - for FCO Fund V GP LLC, By: David N. Brooks, its Secretary	06/22/2026
	** Signature of Reporting Person	Date
	/s/ David N. Brooks - for Fortress Credit Opportunities V Advisors LLC, By: David N. Brooks, its Secretary	06/22/2026
	** Signature of Reporting Person	Date
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