James S. Black - 19 Mar 2026 Form 4 Insider Report for NEXTNAV INC. (NN)

Reporting relationship: General Counsel
Issuer ticker: NN
Reported as of: 19 Mar 2026
Net transaction value: -$169,428
SEC form: 4
Accepted by SEC: 23 Mar 2026, 20:10:24 UTC
Prior SEC filing: 13 Mar 2025
Next SEC filing: 16 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ James Black

Key filing fact

James S. Black filed Form 4 for NEXTNAV INC. (NN) on 23 Mar 2026.

Key facts

This page summarizes James S. Black's Form 4 filing for NEXTNAV INC. (NN).
5 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 23 Mar 2026, 20:10.

Change

Previous filing in this sequence was filed on 13 Mar 2025.
Current net transaction value: -$169,428.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001945586 Primary reporting owner

Black James S

Relationship: General Counsel
Address: 11911 FREEDOM DRIVE, SUITE 200, RESTON
Signature: /s/ James Black
Signature date: 23 Mar 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

NN transaction

Common Stock

Award

Transaction value
Shares: +8,862
Change %: +13%
Price: $0.000000^*
Shares after: 75,641
Date: 19 Mar 2026
Ownership: Direct
Footnotes: F1

NN transaction

Common Stock

Award

Transaction value
Shares: +27,354
Change %: +36%
Price: $0.000000^*
Shares after: 102,995
Date: 19 Mar 2026
Ownership: Direct
Footnotes: F2

NN transaction

Common Stock

Sale

Transaction value: $119,608
Shares: -6,678
Change %: -6.5%
Price: $17.91
Shares after: 96,317
Date: 20 Mar 2026
Ownership: Direct
Footnotes: F3, F4

NN transaction

Common Stock

Sale

Transaction value: $49,821
Shares: -2,751
Change %: -2.9%
Price: $18.11
Shares after: 93,566
Date: 20 Mar 2026
Ownership: Direct
Footnotes: F5

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

NN transaction Derivative

Stock Option (Right to Buy)

Award

Transaction value
Shares: +40,231
Change %
Price: $0.000000^*
Shares after: 40,231
Date: 19 Mar 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 40,231
Exercise price: $20.39
Footnotes: F6

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 6 footnotes

Footnote F1

Represents a bonus grant of restricted stock units ("RSUs"); 100% of the Bonus RSUs vested on March 19, 2026 (the grant date) (the "Bonus RSUs").

Footnote F2

Represents a grant of RSUs that will vest over a four-year period. Subject to the Reporting Person's continued service through each of the applicable vesting dates, 1/4 of the RSUs shall vest on the one-year anniversary of March 19, 2026, and 1/16 of the RSUs shall vest quarterly in substantially equal installments thereafter.

Footnote F3

This sale was effected pursuant to a Rule 10b5-1 sales plan adopted by the Reporting Person on December 11, 2025 and the proceeds are intended to be used to satisfy tax withholding obligations in connection with the vesting of the underlying equity awards.

Footnote F4

The reported price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.51 to $18.33 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.

Footnote F5

The proceeds of this sale are intended to be used to satisfy tax withholding obligations in connection with the vesting of the Bonus RSUs.

Footnote F6

Represents a grant of stock options (the "Options"). Subject to the Reporting Person's continued service through each of the applicable vesting dates, twenty five percent (25%) of the Options shall vest on the one-year anniversary of March 19, 2026, and the remaining portion shall vest in equal quarterly installments over the subsequent three years.