NextNav insider plans sale of 1,878 shares

A Form 144 filing discloses James Black’s planned Rule 144 sale of 1,878 shares of NEXTNAV INC. common stock.

Available on EDGAR 09/14/2026 - 04:56 PM EDT Accepted by SEC EDGAR 09/14/2026 - 04:49 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

NEXTNAV INC. (NN) received a Form 144 notice indicating that James Black plans to sell shares of its common stock under Rule 144.

The filing covers up to 1,878 shares of common stock, with an indicated aggregate market value of $28,508.04, proposed for sale on September 14, 2026 through Morgan Stanley Smith Barney LLC. The shares relate to Restricted Stock Units acquired from the issuer on September 11, 2026.

Key Figures

Shares proposed for sale: 1,878 shares Aggregate market value: $28,508.04 Proposed sale date: September 14, 2026 +1 more

4 metrics

Shares proposed for sale 1,878 shares Common stock covered by the Form 144 notice

Aggregate market value $28,508.04 Indicated value for the 1,878 shares proposed for sale

Proposed sale date September 14, 2026 Date listed for sale of the common stock on NASDAQ

Acquisition date of RSU shares September 11, 2026 Date the Restricted Stock Units from the issuer are listed as acquired

Key Terms

Rule 144, Restricted Stock Units, NASDAQ, Form 144

4 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Restricted Stock Units financial

"Common | 09/11/2026 | Restricted Stock Units | Issuer"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

NASDAQ market

"168809910 | 09/14/2026 | NASDAQ"

The Nasdaq is a stock exchange where many companies' shares are bought and sold, functioning much like a marketplace for investments. It matters to investors because it provides a platform to buy and sell ownership stakes in companies, helping them track the value of those companies and make informed decisions. As one of the largest and most technology-focused markets, it also reflects trends and developments in the business world.

Form 144 regulatory

"144: Issuer Information Name of Issuer | NextNav Inc."

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the Form 144 filing for NN disclose?

It discloses that James Black intends to sell up to 1,878 shares of NEXTNAV INC. common stock under Rule 144, with an indicated aggregate market value of $28,508.04, through Morgan Stanley Smith Barney LLC.

How many NEXTNAV INC. (NN) shares are covered by this Form 144?

The notice covers up to 1,878 shares of NEXTNAV INC. common stock. These shares are planned for sale under Rule 144, which governs resales of restricted and control securities.

What is the estimated value of the NN shares in this Form 144?

The filing lists an aggregate market value of approximately $28,508.04 for the 1,878 shares of NEXTNAV INC. common stock proposed to be sold.

When were the NN shares to be sold under this Form 144 acquired?

The shares relate to Restricted Stock Units from NEXTNAV INC. that were acquired on September 11, 2026, according to the Form 144 disclosure.

On what date are the NN shares expected to be sold under this Form 144?

The Form 144 indicates a proposed sale date of September 14, 2026 for the 1,878 shares of NEXTNAV INC. common stock on the NASDAQ market.

Which broker is named in the NN Form 144 filing?

The filing identifies Morgan Stanley Smith Barney LLC Executive Financial Services as the broker for the planned sale of NEXTNAV INC. common stock.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001945586
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	NextNav Inc.
SEC File Number	001-40985
Address of Issuer	11911 Freedom Dr., Ste. 200 Reston VIRGINIA 20190
Phone	8007750982
Name of Person for Whose Account the Securities are To Be Sold	JAMES BLACK
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	1878	28508.04	168809910	09/14/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	09/11/2026	Restricted Stock Units	Issuer			1878	09/11/2026	N/A

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	09/14/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	12/10/2025
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ James Black
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)