# EDGAR Filing Document

**Accession Number:** 0001865631
**File Stem:** 0001554855-26-000537
**Filing Date:** 2026-4
**Character Count:** 2406
**Document Hash:** 99aa6d54a4115a232065ed6c7873ab02
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001554855-26-000537.hdr.sgml**: 20260408

**ACCESSION NUMBER**: 0001554855-26-000537

**CONFORMED SUBMISSION TYPE**: DEFA14A

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20260408

**DATE AS OF CHANGE**: 20260408

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** NEXTNAV INC.
- **CENTRAL INDEX KEY:** 0001865631
- **STANDARD INDUSTRIAL CLASSIFICATION:** SEARCH, DETECTION, NAVIGATION, GUIDANCE, AERONAUTICAL SYS [3812]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** DEFA14A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-40985
- **FILM NUMBER:** 26848531

**BUSINESS ADDRESS:**
- **STREET 1:** 11911 FREEDOM DRIVE
- **STREET 2:** STE 200
- **CITY:** RESTON
- **STATE:** VA
- **ZIP:** 20190
- **BUSINESS PHONE:** 800-775-0982

**MAIL ADDRESS:**
- **STREET 1:** 11911 FREEDOM DRIVE
- **STREET 2:** STE 200
- **CITY:** RESTON
- **STATE:** VA
- **ZIP:** 20190

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Spartacus Acquisition Shelf Corp.
- **DATE OF NAME CHANGE:** 20210603

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**SCHEDULE 14A**<br>

Proxy Statement Pursuant to Section 14(a) of

the Securities Exchange Act of 1934

Filed by the Registrant ☒

Filed by a Party other than the Registrant ☐

Check the appropriate box:

☐&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Preliminary Proxy Statement

☐&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))**

☐&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Definitive Proxy Statement

☒ Definitive Additional Materials

☐&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Soliciting Material under §240.14a-12

# NEXTNAV INC.
(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check all boxes that apply)

☒ No fee required

☐ Fee paid previously with preliminary materials

☐ Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11

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