NextNav (NN) COO sells 3,396 shares to cover tax obligations

Rhea-AI Filing Summary

NextNav Inc. Chief Operating Officer Susan Brasse Insley sold 3,396 shares of common stock on March 17, 2026 in an open-market transaction at a weighted average price of $16.8536 per share. The sale was made under a Rule 10b5-1 plan adopted on August 19, 2025, and the proceeds are intended to cover tax withholding obligations related to vesting equity awards. Following this transaction, she directly holds 125,485 shares of NextNav common stock.

Insider Trade Summary 10b5-1

Net Seller: 3,396 shares ($57,235)

Net Sell 1 txn

Insider Insley Susan Brasse

Role Chief Operating Officer

Sold 3,396 shs ($57K)

Type	Security	Shares	Price	Value
Sale	Common Stock	3,396	$16.8536	$57K

Holdings After Transaction: Common Stock — 125,485 shares (Direct)

Footnotes (1)

1. This sale was effected pursuant to a Rule 10b5-1 sales plan adopted by the Reporting Person on August 19, 2025 and the proceeds are intended to be used to satisfy tax withholding obligations in connection with the vesting of the underlying equity awards. The reported price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.73 to $17.03 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Form 4 Insider Transactions: What Each Field Means →

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Insley Susan Brasse

(Last) (First) (Middle)

11911 FREEDOM DRIVE

SUITE 200

(Street)

RESTON VIRGINIA 20190

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
NEXTNAV INC. [ NN ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Operating Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/17/2026

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

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

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

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	03/17/2026		S(1)		3,396	D	$16.8536(2)	125,485	D

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. This sale was effected pursuant to a Rule 10b5-1 sales plan adopted by the Reporting Person on August 19, 2025 and the proceeds are intended to be used to satisfy tax withholding obligations in connection with the vesting of the underlying equity awards.

2. The reported price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.73 to $17.03 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

	/s/ James Black, by power of attorney	03/19/2026
	** Signature of Reporting Person	Date
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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did NextNav (NN) report for Susan Brasse Insley?

NextNav reported that COO Susan Brasse Insley sold 3,396 shares of common stock. The sale occurred on March 17, 2026 at a weighted average price of $16.8536 per share in an open-market transaction disclosed on Form 4.

Was the recent NextNav (NN) COO share sale under a Rule 10b5-1 plan?

Yes, the COO’s sale was executed under a Rule 10b5-1 trading plan. The plan was adopted on August 19, 2025, indicating the transactions were pre-arranged rather than timed discretionarily around short-term market movements.

How many NextNav (NN) shares does the COO hold after the reported sale?

After the sale, COO Susan Brasse Insley directly holds 125,485 NextNav shares. This reflects her remaining equity position following the 3,396-share open-market sale disclosed in the Form 4 filing.

At what prices were the NextNav (NN) shares sold in the COO’s Form 4 filing?

The reported weighted average sale price was $16.8536 per share. Footnotes state the 3,396 shares were sold in multiple transactions at prices ranging from $16.73 to $17.03 per share, inclusive, in the open market.

Why did the NextNav (NN) COO sell shares according to the Form 4 footnotes?

The proceeds from the COO’s sale are intended to satisfy tax withholding obligations. Footnotes explain the sale relates to tax withholding connected with the vesting of underlying equity awards, rather than a discretionary liquidation of her entire position.

How large was the NextNav (NN) COO’s sale compared with her remaining holdings?

The COO sold 3,396 shares and retained 125,485 shares afterward. This indicates the transaction represents a relatively small portion of her overall direct ownership as reported in the Form 4 filing.