NEXTNAV Insider James Black Files Form 4 on 3/19/26

TL;DR

**NEXTNAV insider James Black filed a Form 4, but the details of the transaction aren't in this summary.**

AI Summary

This Form 4 filing indicates that James S. Black, a reporting insider, had a change in beneficial ownership of securities in NEXTNAV INC. as of March 19, 2026. While the filing details the reporting person and the issuer, it does not specify the nature of the transaction (buy or sell) or the number of shares involved. This matters to investors because insider transactions can signal management's confidence (or lack thereof) in the company's future, but without transaction details, its impact is unclear.

Why It Matters

Insider filings like this can signal management's view on the company's prospects, but without transaction specifics, its immediate impact on stock valuation is minimal.

Risk Assessment

Risk Level: low — This filing is a routine disclosure of a change in beneficial ownership, not an event that inherently carries high risk.

Analyst Insight

An investor should note the filing but await the full document to understand the nature and size of the transaction before making any investment decisions, as the summary lacks critical details.

Key Players & Entities

• Black James S (person) — Reporting insider
• NEXTNAV INC. (company) — Issuer of securities
• 0001945586 (person) — CIK of Black James S
• 0001865631 (company) — CIK of NEXTNAV INC.

FAQ

Key Financial Figures

• $17.51 — ple transactions at prices ranging from $17.51 to $18.33 per share, inclusive. The Rep
• $18.33 — ctions at prices ranging from $17.51 to $18.33 per share, inclusive. The Reporting Per

Filing Documents

• primary_doc.html (4)
• primary_doc.xml (4) — 12KB
• 0001554855-26-000394.txt ( ) — 13KB

From the Filing

SEC FORM 4 SEC Form 4 FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 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 * Black James S (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) General Counsel 2a. Foreign Trading Symbol 3. Date of Earliest Transaction (Month/Day/Year) 03/19/2026 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 03/19/2026 A (1) 8,862 A $ 0 75,641 D Common Stock 03/19/2026 A (2) 27,354 A $ 0 102,995 D Common Stock 03/20/2026 S (3) 6,678 D $ 17.9107 (4) 96,317 D Common Stock 03/20/2026 S (5) 2,751 D $ 18.11 93,566 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 Stock Option (Right to Buy) $ 20.39 03/19/2026 A 40,231 (6) 03/19/2036 Common Stock 40,231 $ 0 40,231 D Explanation of Responses: 1. 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"). 2. 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. 3. 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. 4. 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. 5. The proceeds of this sale are intended to be used to satisfy tax withholding obligations in connection with the vesting of the Bonus RSUs. 6. 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. /s/ James Black 03/23/2026 ** Signa

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