NextNav (NASDAQ: NN) registers 15.1M warrant shares at $11.50

Rhea-AI Filing Summary

NextNav Inc. registers up to 15,100,000 shares of Common Stock issuable upon exercise of outstanding warrants. The warrants have an exercise price of $11.50 per share and expire on October 28, 2026. The company will receive cash proceeds from any warrant exercises and states proceeds will be used for general corporate purposes.

The prospectus notes that market price will affect exercise likelihood and discloses: 136,436,939 shares outstanding as of May 11, 2026, Nasdaq symbols NN and NNAVW, and reported closing prices on May 22, 2026 of $21.74 (Common) and $10.14 (Warrants).

Insights

Securities Registration Analyst

Registration covers up to 15.1M common shares issuable on warrant exercise at $11.50.

The filing registers 15,100,000 Warrant Shares issuable upon exercise of outstanding warrants converted from Spartacus Warrants, with proceeds payable to the issuer and intended for general corporate purposes. The prospectus ties exercise economics to market price and discloses recent Nasdaq closing prices.

Regulatory and market dependencies are material: warrant exercise activity depends on the market price relative to the $11.50 strike and warrants expire on October 28, 2026. Subsequent prospectus supplements or post-effective amendments may alter offering mechanics or amounts.

Capital Markets Counsel

Standard S-3 shelf registration for issuer receipt of exercise proceeds; qualification mechanics described.

The prospectus is a shelf registration enabling issuance of Common Stock upon warrant exercise and includes customary undertakings and distribution mechanics. It confirms proceeds are received by the issuer on a cash exercise and that the registration covers only shares issuable upon exercise of existing warrants.

Watch for post-effective amendments or prospectus supplements that could change plan of distribution or add further terms; timing and exercise volumes are market-driven and not fixed in this filing.

Key Figures

Warrant Shares registered: 15,100,000 shares Exercise Price: $11.50 per share Warrant Expiration: October 28, 2026 +5 more

8 metrics

Warrant Shares registered 15,100,000 shares aggregate Warrant Shares issuable upon exercise of outstanding warrants

Exercise Price $11.50 per share exercise price of the outstanding warrants

Warrant Expiration October 28, 2026 warrants expire five years after the Business Combination closing

Common Stock closing price $21.74 closing sale price on Nasdaq on May 22, 2026 (Common Stock)

Warrant closing price $10.14 closing sale price on Nasdaq on May 22, 2026 (Registered Warrants)

Shares outstanding 136,436,939 shares Common Stock outstanding as of May 11, 2026

Authorized common stock 500,000,000 shares authorized Common Stock per charter

Authorized preferred stock 100,000,000 shares authorized undesignated preferred stock per charter

Key Terms

Warrant Agreement, Lower 900 MHz band, 5G NR PRS, TerraPoiNT

4 terms

Warrant Agreement financial

"governed by that certain Amended and Restated Warrant Agreement..."

A warrant agreement is the legal document that lays out the rules for stock warrants — special certificates that let their holder buy company shares at a set price within a certain time. It explains how and when warrants can be exercised, transferred, changed, or canceled, and what happens to them if the company raises money or is sold; investors care because these terms affect potential future ownership, dilution of shares, and the real value of the warrants.

Lower 900 MHz band regulatory

"Petition asks the FCC to optimize the Lower 900 MHz radio spectrum band..."

A portion of radio spectrum around 900 megahertz that mobile carriers and device makers use for wireless services like cellular, machine-to-machine links and some IoT applications. Because lower frequencies travel farther and penetrate buildings better—like a deep voice carrying across a room—this band is valuable to investors: control or access affects a network’s coverage, equipment costs, regulatory value and the ability of companies to offer reliable services in urban and rural markets.

5G NR PRS technical

"evolve our PNT solutions to use 5G New Radio ("5G NR") positioning reference signals ("PRS")"

TerraPoiNT technical

"TerraPoiNT system is a terrestrially based dedicated, complementary PNT network..."

Offering Details

primary

Offering

Offering Type primary

Use of Proceeds general corporate purposes

As filed with the Securities and Exchange Commission on May 26, 2026

Registration No. 333-

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM S-3

REGISTRATION STATEMENT

UNDER THE SECURITIES ACT OF 1933

NEXTNAV INC.

(Exact name of registrant as specified in its charter)

Delaware		87-0854654
(State or other jurisdiction of incorporation or organization)		(I.R.S. Employer Identification Number)

11911 Freedom Drive, Ste. 200

Reston, VA 20190

(800) 775-0982

(Address, including zip code, and telephone number, including area code, of registrant’s principal executive offices)

James Black

General Counsel and Secretary

11911 Freedom Drive, Ste. 200

Reston, VA 20190

(800) 775-0982

(Name, address, including zip code, and telephone number, including area code, of agent for service)

Copies to:

Randy S. Segal, Esq.

Kevin K. Greenslade, Esq.

Hogan Lovells US LLP

8350 Broad St., 17th Floor

Tysons, VA 22102

(703) 610-6100

Approximate date of commencement of proposed sale to the public: From time to time on or after the effective date of this Registration Statement.

If the only securities being registered on this Form are being offered pursuant to dividend or interest reinvestment plans, please check the following box. ☐

If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, other than securities offered only in connection with dividend or interest reinvestment plans, check the following box. ☒

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a registration statement pursuant to General Instruction I.D. or a post-effective amendment thereto that shall become effective upon filing with the Commission pursuant to Rule 462(e) under the Securities Act, check the following box. ☒

If this Form is a post-effective amendment to a registration statement filed pursuant to General Instruction I.D. filed to register additional securities or additional classes of securities pursuant to Rule 413(b) under the Securities Act, check the following box. ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	☐		Accelerated filer	☐
Non-accelerated filer	☒		Smaller Reporting Company	☐
			Emerging Growth Company	☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐

PROSPECTUS

NEXTNAV INC.

15,100,000 Shares of Common Stock issuable upon exercise of Warrants

This prospectus relates to the issuance by NextNav Inc. (“we,” “us,” or the “Company”) of up to an aggregate 15,100,000 shares (the “Warrant Shares”) of the Company’s common stock, par value $0.0001 per share (“Common Stock”), issuable upon the exercise of outstanding warrants to purchase Common Stock, at an exercise price of $11.50 per share (the “Warrants”), which were converted from Spartacus Warrants (as defined herein) in connection with the Business Combination (as defined herein). We will receive the proceeds from any exercise of any Warrants for cash.

We believe the likelihood that holders of the Warrants will exercise their Warrants, and therefore the amount of cash proceeds that we would receive, is dependent upon the market price of our Common Stock. If the Warrants are “out of the money,” meaning the exercise price is higher than the market price of our Common Stock, the holders thereof are not likely to exercise such Warrants.

The Warrants are governed by that certain Amended and Restated Warrant Agreement, by and among the Company, Spartacus Acquisition Corporation, and Continental Stock Transfer & Trust Company, as warrant agent, dated as of October 28, 2021 (the “Warrant Agreement”).

Our Common Stock and Warrants are listed on The Nasdaq Capital Market (“Nasdaq”) under the symbols “NN” and “NNAVW,” respectively. On May 22, 2026, the closing sale prices of our Common Stock and Registered Warrants as reported on Nasdaq were $21.74 and $10.14, respectively.

We are an “emerging growth company,” as defined under the federal securities laws, and, as such, may elect to comply with certain reduced public company reporting requirements for future filings.

Investing in our securities involves a high degree of risk. See the section titled “Risk Factors” beginning on page 9. You should carefully consider these risk factors, as well as other information contained in this prospectus, before making an investment decision. You should rely only on the information contained in this prospectus, as well as the information incorporated by reference into this prospectus and any applicable prospectus supplement or amendment thereto. We have not authorized anyone to provide you with different information.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

The date of this prospectus is May 26, 2026.

Table of Contents

TABLE OF CONTENTS

	Page
ABOUT THIS PROSPECTUS	1
CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS	2
MARKET, RANKING AND OTHER INDUSTRY DATA	4
TRADEMARKS, SERVICE MARKS AND TRADE NAMES	4
PROSPECTUS SUMMARY	5
THE OFFERING	8
RISK FACTORS	9
USE OF PROCEEDS	10
DESCRIPTION OF CAPITAL STOCK	11
PLAN OF DISTRIBUTION	15
LEGAL MATTERS	15
EXPERTS	15
WHERE YOU CAN FIND MORE INFORMATION; INCORPORATION BY REFERENCE	16
SIGNATURES	22

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ABOUT THIS PROSPECTUS

This prospectus relates to the issuance by the Company of the Warrant Shares, issuable upon exercise of the Warrants.

This prospectus contains summaries of certain provisions contained in some of the documents described herein, but reference is made to the actual documents for complete information. All of the summaries are qualified in their entirety by the actual documents. Copies of some of the documents referred to herein have been filed, will be filed, or will be incorporated by reference as exhibits to the registration statement of which this prospectus is a part, and you may obtain copies of those documents as described herein under the section titled “Where You Can Find More Information; Incorporation by Reference.”

Any prospectus supplement or post-effective amendment to the registration statement that we file may add, update or change information included in this prospectus. Any statement contained in this prospectus will be deemed to be modified or superseded for purposes of this prospectus to the extent that a statement contained in such prospectus supplement modifies or supersedes such statement. Any statement so modified will be deemed to constitute a part of this prospectus only as so modified, and any statement so superseded will be deemed not to constitute a part of this prospectus.

We have not authorized anyone to provide any information or to make any representations other than those contained in this prospectus, any accompanying prospectus supplement or any free writing prospectus we have prepared. We do not take any responsibility for, and can provide no assurance as to the reliability of, any other information that others may give you. This prospectus is an offer to sell only the securities offered hereby and only under circumstances and in jurisdictions where it is lawful to do so. No dealer, salesperson or other person is authorized to give any information or to represent anything not contained in this prospectus, any applicable prospectus supplement or any related free writing prospectus. This prospectus is not an offer to sell securities, and it is not soliciting an offer to buy securities, in any jurisdiction where the offer or sale is not permitted. You should assume that the information appearing in this prospectus, or any prospectus supplement is accurate only as of the date on the front of those documents only, regardless of the time of delivery of this prospectus or any applicable prospectus supplement, or any sale of a security. Our business, financial condition, results of operations and prospects may have changed since those dates.

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CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

Certain statements in this prospectus (including the documents incorporated by reference herein) may constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995 and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Forward-looking statements include, but are not limited to, statements regarding our management team’s expectations, hopes, beliefs, intentions or strategies regarding the future, projections, forecasts or other characterizations of future events or circumstances, including any underlying assumptions, and are not guarantees of future performance. The words “may,” “will,” “anticipate,” “believe,” “continue,” “could,” “estimate,” “future,” “expect,” “intend,” “might,” “plan,” “possible,” “potential,” “aim,” “strive,” “predict,” “project,” “should,” “would” and similar expressions may identify forward-looking statements, but the absence of these words does not mean that a statement is not forward-looking.

Forward-looking statements in this prospectus may include, for example, statements about:

 expectations related to the successful resolution and timing of our petition before the Federal Communications Commission (“FCC”) to modify our Lower 900 MHz licenses;

 expectations regarding our strategies and future financial performance, including our future business plans or objectives;

 expected functionality of our geolocation services;

 anticipated timing and level of deployment of our services;

 anticipated demand and acceptance of our services;

 prospective performance and commercial opportunities and competitors;

 the timing of obtaining regulatory approvals, the achievement of certain FCC related milestones and FCC approvals;

 our ability to finance our research and development activities, commercial partnership acquisition and retention, products and services, pricing, marketing plans, operating expenses, market trends, revenue, liquidity, cash flows and uses of cash, capital expenditures, and our ability to invest in growth initiatives;

 our ability to evolve our technology to be compatible with 5G New Radio (“5G NR”) technologies, and realize the technical benefits of such proposed evolution;

 our ability to recognize the anticipated benefits associated with Asset Purchase Agreement (as defined in Note 5 in the notes to the consolidated financial statements below) and any subsequent asset purchases, mergers, acquisitions, or other similar transactions, which may be affected by, among other things, competition, and the ability of the combined business to grow and manage growth profitably;

 factors relating to our future operations, projected capital resources and financial position, estimated revenue and losses, projected costs and capital expenditures, prospects and plans, including the potential increase in customers and expectations about international markets;

 projections of market growth and size, including the level of market acceptance for our services;

 our ability to adequately protect key intellectual property rights or proprietary technology;

 our ability to evolve our technology to be compatible with 5G NR, and realize the technical benefits of such proposed evolution;

 our ability to maintain our Location and Monitoring Service (“LMS”) licenses and obtain additional LMS and other licenses as necessary;

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 our ability to maintain adequate operational financial resources or raise additional capital or generate sufficient cash flows, including the adequacy of our financial resources to meet our operational and working capital requirements for the 12 month period following the issuance of this report;

 our ability to maintain an effective system of internal controls;

 our success in recruiting and/or retaining officers, key employees or directors;

 our statements regarding the factors that may impact our financial results and stock price; and

 other factors detailed herein, including those incorporated herein by reference.

These forward-looking statements are based on information available as of the date of this prospectus, and current expectations, forecasts and assumptions, and involve a number of judgments, risks and uncertainties. Accordingly, forward-looking statements should not be relied upon as representing our views as of any subsequent date, and we do not undertake any obligation to update or revise any forward-looking statements to reflect events or circumstances after the date they were made, whether as a result of new information, future events or otherwise, except as may be required under applicable securities laws.

You should not place undue reliance on these forward-looking statements. As a result of a number of known and unknown risks and uncertainties, our actual results or performance may be materially different from those expressed or implied by these forward-looking statements.

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MARKET, RANKING AND OTHER INDUSTRY DATA

Certain market, ranking and industry data included in this prospectus, including the size of certain markets and our size or position and the positions of our competitors within these markets, including our products and services relative to our competitors, are based on estimates by our management. These estimates have been derived from our management’s knowledge and experience in the markets in which we operate, as well as information based on research, industry and general publications, including surveys and studies conducted by third parties. Industry publications, surveys and studies generally state that they have been obtained from sources believed to be reliable.

We are responsible for all of the disclosure in this prospectus and while we believe the data from these sources to be accurate and complete, we have not independently verified all data from these sources or obtained third-party verification of market share data and this information may not be reliable. In addition, these sources may use different definitions of the relevant markets. Data regarding our industry is intended to provide general guidance but is inherently imprecise. Market share data is subject to change and cannot always be verified with certainty due to limits on the availability and reliability of raw data, the voluntary nature of the data gathering process and other limitations and uncertainties inherent in any statistical survey of market shares. In addition, customer preferences can and do change. As a result, you should be aware that market share, ranking and other similar data set forth herein, and estimates and beliefs based on such data, may not be reliable. References herein to us being a leader in a market or product category refers to our belief that we have a leading market share, expertise or thought leadership position in each specified market, unless the context otherwise requires. In addition, the discussion herein regarding our various markets is based on how we define the markets for our products or services, which products or services may be either part of larger overall markets or markets that include other types of products and services. Assumptions and estimates regarding our current and future performance are necessarily subject to a high degree of uncertainty and risk due to a variety of factors. These and other factors could cause our future performance to differ materially from our assumptions and estimates. See the section titled “Cautionary Note Regarding Forward-Looking Statements.”

TRADEMARKS, SERVICE MARKS AND TRADE NAMES

This prospectus may contain some trademarks, service marks and trade names of the Company or of third parties. Each one of these trademarks, service marks or trade names is either (1) our registered trademark, (2) a trademark for which we have a pending application, or (3) a trade name or service mark for which we claim common law rights. All other trademarks, trade names or service marks of any other company appearing in this prospectus belong to their respective owners. Solely for convenience, the trademarks, service marks and trade names referred to in this prospectus are presented without the TM, SM and ® symbols, but such references are not intended to indicate, in any way, that we will not assert, to the fullest extent under applicable law, our respective rights or the rights of the applicable licensors to these trademarks, service marks and trade names.

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PROSPECTUS SUMMARY

This summary highlights selected information contained elsewhere in this prospectus. This summary does not contain all of the information you should consider before investing in our securities. Before making an investment decision regarding our securities, you should read this entire prospectus carefully, including the sections titled “Risk Factors” and “Cautionary Note Regarding Forward-Looking Statements” included elsewhere in this prospectus and the information incorporated herein by reference and any applicable prospectus supplement.

Our Business

We are the market leader in delivering resilient, next generation, complementary positioning, navigation and timing (“PNT”) solutions designed to overcome the limitations and vulnerabilities of existing space-based Global Navigation Satellite Systems, including the Global Positioning System (“GPS”). PNT services are used in nearly every facet of our economy. Cellular and electrical distribution systems depend on GPS-based timing, and the mobile app economy relies on location to create innovative services and to drive data and advertising revenue. Public safety and enhanced 911 save lives every day with the use of location services. GPS has powered the global economy for nearly 40 years. Without high-precision timing from GPS, cellular systems would fail, the distribution of electricity would be impacted, and other aspects of everyday life would be adversely affected. Recent international events have demonstrated that having viable systems to backup and complement GPS is a national security issue.

Our PNT solutions address these needs and issues in several ways. Our technology consists of a ground-based transmitter network operating on low-band spectrum assets in a manner similar to the function of GPS satellites. Unlike satellites, our network signals are designed to be much stronger and extremely difficult to jam or spoof. In addition, because the signals are terrestrial and low-band, they can penetrate buildings. As a result, our technology can act as a complement to satellite-based GPS, especially in urban canyons or deep indoors, and as a backup in case traditional GPS fails due to jamming, spoofing, technical failures, solar flares or other risks to satellite-based services. In addition, our location-based services are three-dimensional. Our core Pinnacle technology uses barometric sensors in smartphones and other communications devices and a network of sensors to determine vertical, or “z-axis”, location. This technology can provide accurate vertical location data to assist first responders, dispatchers and others, or could be used for autonomous systems, such as drones, in need of precise 3D mapping in urban areas, among other uses.

Our complementary PNT solutions are built on our asset base of FCC licenses that cover 12 MHz of low-band spectrum available for use. This spectrum consists of a contiguous 8 MHz block of 900 MHz spectrum covering over 90% of the U.S. population and an additional 4 MHz of complementary spectrum covering part of the U.S. population that was transferred to us in 2025 as a result of a transaction with Telesaurus and Skybridge Spectrum Foundation. That transaction also gave us potential rights to an additional 2 MHz of related spectrum covered by terminated Skybridge Spectrum Foundation licenses. These licenses are subject to a Skybridge and Telesaurus petition for reconsideration seeking reinstatement of these licenses. For more information, refer to Note 5 to our condensed consolidated financial statements for the three months ended March 31, 2026 included in this Quarterly Report on Form 10-Q.

We are evolving our PNT solutions to use 5G New Radio (“5G NR”) positioning reference signals (“PRS”), under the 3GPP global standard, to determine location and timing - a platform we refer to as NextGen. We believe the evolution of our existing technologies and services to a 5G NR PRS capability will improve the efficiency, flexibility, and scale of our operations. 5G NR technologies drive enhanced network performance, capacity, and efficiency across multiple industry verticals. 5G NR enables low-latency, high-throughput connectivity and also improves spectral efficiency, which allows operators to increase returns on investment in licensed spectrum and, with respect to our technology, to improve both the density and availability of PNT signals. 5G NR can also support many different applications, including ultra-reliable low-latency communications (URLLC), enhanced mobile broadband (eMBB), and massive machine-type communications (mMTC). These capabilities permit 5G NR to support high-performance broadband services as well as emerging use cases in autonomous systems, industrial automation, and the Internet of Things (IoT). As a result, spectrum that can support 5G technologies and services is important to broadband providers and their customers.

To enable our evolution to 5G NR, we have filed a Petition for Rulemaking (the “Petition”) asking the FCC to optimize the Lower 900 MHz radio spectrum band to enable 5G NR operations, the delivery of PNT via a 5G broadband network and in turn support such 5G technologies and services. Our Petition requests the FCC allow us to use a single, nationwide 15 MHz spectrum configuration for both PNT and 5G broadband. The Petition is subject to an ongoing FCC regulatory review process, and was referenced in the FCC’s March 27, 2025 PNT Notice of Inquiry.

Under our proposal, the FCC would create a 5 MHz uplink and 10 MHz downlink suitable for 5G operations. We believe modernizing the Lower 900 MHz band will simultaneously enable a high-quality terrestrial PNT network to complement and back up GPS, addressing a critical national security vulnerability, and add 5G broadband capacity. As such, our NextGen capability is being designed with the goal of enabling one or more mobile network operators or other partners to integrate this optimized Lower 900 MHz spectrum into their 5G network deployments. We expect that these partnerships would result in wide-scale availability of our complementary PNT services and, for our potential partners, additional 5G broadband capacity.

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The backbone of wireless data services, electromagnetic spectrum, is a finite resource. Our spectrum licenses, which lie in the Lower 900 MHz band, are referred to as “low-band spectrum.” There is a finite amount of low-band spectrum available, and low-band spectrum has favorable coverage characteristics compared to higher frequencies, including the ability to provide services indoors and over greater distances. These characteristics result in its ability to be used for coverage and to be deployed more economically, with higher-frequency spectrum often used to provide additional capacity in targeted locations. The transition to 5G NR for our PNT services will provide a technical capability to support broadband data services, which, subject to appropriate regulatory approvals, would allow the spectrum to be used to help meet the continued, growing demand for wireless data capacity.

A core element of our strategy is to pursue such partnerships to offset the costs of deploying and operating a widescale, terrestrial PNT network that can act as a complement and backup to GPS. While GPS is fully supported by the U.S. government, we believe it is unlikely that the U.S. government would subsidize an extensive, standalone terrestrial PNT network and other revenue-generating opportunities are limited, given existing use of GPS. However, there is a financially viable path to a widescale terrestrial PNT network that meets critical national security needs through the spectrum optimization proposed by our Petition that would allow it to be used for 5G.

Simultaneously, demand for wireless data services continues to grow. The backbone of wireless data services, electromagnetic spectrum, is a finite resource. Our spectrum licenses, which lie in the Lower 900 MHz band, are referred to as “low-band spectrum.” There is a finite amount of low-band spectrum available, and low-band spectrum has favorable coverage characteristics compared to higher frequencies, including the ability to provide services indoors and over greater distances. These characteristics result in its ability to be used for coverage and to be deployed more economically, with higher-frequency spectrum often used to provide additional capacity in targeted locations. The transition to 5G NR for our PNT services will provide a technical capability to support broadband data services, which, subject to appropriate regulatory approvals, may allow the spectrum to be utilized to help meet the continued, growing demand for wireless data capacity.

As we evolve our technology platform to NextGen and pursue regulatory changes to the Lower 900 MHz band and our spectrum licenses, we continue to deliver high-quality PNT services through our Pinnacle and TerraPoiNT solutions. Our Pinnacle solution, launched in partnership with AT&T Services, Inc. as part of its FirstNet® initiative, can provide accurate altitude service to any device with a barometric pressure sensor and covers over 90% of commercial structures over three stories in the U.S. Our Pinnacle system is primarily used for public safety applications, including enhanced 911 for Verizon Communications, Inc., and a growing number of devices operating on the remaining national cellular network providers.

Our TerraPoiNT system is a terrestrially based dedicated, complementary PNT network designed to overcome the limitations inherent in the space-based nature of GPS. GPS is a faint, unencrypted signal, which is often unavailable indoors, distorted in urban areas, and vulnerable to both jamming and spoofing. TerraPoiNT overcomes these limitations through a network of wide-area location transmitters that broadcast a PNT signal on our licensed Lower 900 MHz M-LMS spectrum. Unlike GPS, the TerraPoiNT signal can be reliably received indoors and in urban areas, is difficult to jam or spoof compared to GPS, and can support signal authentication (e.g., encryption). Further, the TerraPoiNT signal can embed Pinnacle information to provide a full three-dimensional PNT solution. TerraPoiNT received the highest scores in testing by the DoT reported in 2021 regarding potential PNT backup solutions, in each category tested, and was the only solution evaluated capable of providing the full set of services provided by GPS. Continuing our engagement with the DoT, in 2024 we were awarded a contract to establish performance characteristics for TerraPoiNT to allow DoT to incorporate our solutions into a clearinghouse of solutions defined in the DoT Complementary PNT Action Plan, for potential use by Federal government customers.

Emerging Growth Company Status

Section 102(b)(1) of the JOBS Act exempts emerging growth companies from being required to comply with new or revised financial accounting standards until private companies are required to comply with the new or revised financial accounting standards. The JOBS Act provides that a company can choose not to take advantage of the extended transition period and comply with the requirements that apply to non-emerging growth companies, and any such election to not take advantage of the extended transition period is irrevocable. Spartacus Acquisition Corp. (a Delaware special purpose acquisition company with which we consummated a business combination in 2021) previously elected to avail itself of the extended transition period, and following the consummation of such 2021 business combination, we became an emerging growth company (for the period described in the immediately succeeding paragraph) and will continue to take advantage of the benefits of the extended transition period emerging growth company status permits. During the extended transition period, it may be difficult or impossible to compare our financial results with the financial results of another public company that complies with public company effective dates for accounting standard updates because of the potential differences in accounting standards used.

We will remain an emerging growth company under the JOBS Act until December 31, 2026.

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Company History and Corporate Information

We were incorporated under the laws of the State of Delaware in May 2021 under the name “Spartacus Acquisition Shelf Corp.” by Spartacus Acquisition Corporation, a Delaware special purpose acquisition company (“Spartacus”), for the purpose of effecting a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or other similar business combinations with one or more businesses or assets. On October 28, 2021, in connection with the closing of a business combination pursuant to the terms of the Agreement and Plan of Merger, dated as of June 9, 2021, by and among us, Spartacus, NextNav Holdings, LLC, a Delaware limited liability company (“Holdings”) and the other parties thereto (the “Business Combination”), we changed our name to “NextNav Inc.”

Our principal executive office is located at 11911 Freedom Drive, Ste. 200, Reston, VA 20190. Our telephone number is (800) 775-0982, and our website address is www.nextnav.com. Information contained on, or accessible through, our website is provided for textual reference only and does not constitute part of, and is not incorporated by reference into, this prospectus or the registration statement of which it forms a part.

Our operating subsidiary, NextNav, LLC (a wholly owned subsidiary of Holdings), was formed in October 2007 under the laws of the State of Delaware. In connection with the Business Combination, the various operating subsidiaries of Holdings became our wholly owned subsidiaries.

Warrants

In connection with the Business Combination, we entered into the Warrant Agreement, and each of the outstanding public warrants (collectively, the “Spartacus Warrants”) to purchase one share of Class A common of Spartacus (a “Spartacus Share”) were, pursuant to their terms, converted into warrants to acquire the number of shares of NextNav Common Stock equal to the number of Spartacus Shares for which such Spartacus Warrants shall have been exercisable.

Holders of the Warrants are entitled to purchase one whole share of our Common Stock at a price of $11.50 per share for each whole warrant; subject to adjustment as discussed herein. The Warrants expire on October 28, 2026 (five years after completion of the Business Combination), at 5:00 p.m., New York City time, or earlier upon redemption or liquidation. The Warrants were issued in registered form under the Warrant Agreement between Continental Stock Transfer & Trust Company, as warrant agent, and us.

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THE OFFERING

Issuer		NextNav Inc.
Common Stock to be issued upon exercise of the Warrants		Up to 15,100,000 shares
Exercise Price		$11.50 per Warrant Share
Use of proceeds		We will receive the proceeds from the exercise of the Warrants on a cash basis, if any. See the section entitled “Use of Proceeds.”
Risk factors		You should read the section entitled “Risk Factors” and the other information included or incorporated by reference in this prospectus for a discussion of factors to consider carefully before deciding to invest in our securities.
The Nasdaq Capital Market symbol — Common Stock		“NN”
The Nasdaq Capital Market symbol — Warrants		“NNAVW”

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RISK FACTORS

An investment in our securities involves a high degree of risk. You should carefully consider the risk factors incorporated by reference to our most recent Annual Report on Form 10-K, and any subsequent Quarterly Reports on Form 10-Q or Current Reports on Form 8-K, and all other information contained or incorporated by reference into this prospectus, as updated by our subsequent filings under the Exchange Act, and the risk factors and other information contained in any applicable prospectus supplement and any applicable free writing prospectus before you decide whether to invest in our securities. We may face additional risks and uncertainties that are not presently known to us, or that we currently deem immaterial, which may also impair our business. You should consult your own financial and legal advisors as to the risks entailed by an investment in our securities and the suitability of investing in our securities in light of your particular circumstances. Some statements in this prospectus, including such statements in the following risk factors, constitute forward-looking statements. See the section titled “Cautionary Note Regarding Forward-Looking Statements.”

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USE OF PROCEEDS

This prospectus relates to the issuance by us of up to 15,100,000 Warrant Shares issuable upon exercise of the Warrants. We intend to use the proceeds received from the cash exercise of the Warrants, if any, for general corporate purposes.

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DESCRIPTION OF CAPITAL STOCK

General

Our authorized capital stock consists of 500,000,000 shares of Common Stock, par value $0.0001 per share, and 100,000,000 shares of undesignated preferred stock, par value $0.0001 per share. As of May 11, 2026, there were approximately 136,436,939 shares of our Common Stock outstanding and no shares of preferred stock outstanding. The following description of our capital stock is intended as a summary only and is qualified in its entirety by reference to our amended and restated certificate of incorporation (“charter”) and our bylaws, which are filed as exhibits to the registration statement of which this prospectus forms a part, and to the applicable provisions of the Delaware General Corporation Law (the “DGCL”).

Common Stock

Dividend Rights

Subject to preferences that may apply to shares of preferred stock outstanding at the time, holders of outstanding shares of Common Stock are entitled to receive dividends and other distributions (payable in cash, property or our capital stock) when, as and if declared thereon by our board of directors (our “Board”) from time to time out of any assets or funds legally available therefor and shall share equally on a per share basis in such dividends and distributions.

Voting Rights

Except as otherwise required by law or our charter (including any preferred stock designation), (i) the holders of Common Stock possess all voting power with respect to the Company and (ii) each outstanding share of Common Stock entitles the holder to one vote on any matter properly submitted to the stockholders.

Preemptive Rights

Holders of outstanding shares of our Common Stock are not entitled to preemptive or other similar subscription rights to purchase any of our securities.

Conversion or Redemption Rights

Our Common Stock is neither convertible nor redeemable.

Liquidation Rights

Subject to applicable law and the rights, if any, of the holders of any outstanding series of the preferred stock upon our liquidation, the holders of our Common Stock are entitled to receive all of our remaining assets available for distribution to our stockholders, ratably in proportion to the number of shares of our Common Stock held by each stockholder.

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Preferred Stock

Our Board may, without further action by our stockholders, from time to time, direct the issuance of up to 100,000,000 shares of preferred stock in one or more series and may, at the time of issuance, fix the voting powers, if any, and determine the designations, powers, preferences, and relative, participating, optional, special and other rights, if any, of each such series and any qualifications, limitations and restrictions thereof. Accordingly, our Board, without stockholder approval, may issue preferred stock with voting, conversion, or other rights that could adversely affect the voting power and other rights of the holders of our Common Stock. Preferred stock could be issued quickly with terms calculated to delay or prevent a change of control or make removal of management more difficult. Additionally, the issuance of preferred stock may have the effect of decreasing the market price of our Common Stock, may adversely affect the voting and other rights of the holders of our Common Stock, and could have the effect of delaying, deferring or preventing a change of control of us or other corporate action.

Anti-Takeover Effects of our Charter and Bylaws

Our charter, our bylaws and the DGCL contain provisions, which are summarized in the following paragraphs, that are intended to enhance the likelihood of continuity and stability in the composition of our Board. These provisions are intended to avoid costly takeover battles, reduce our vulnerability to a hostile change of control and enhance the ability of our Board to maximize stockholder value in connection with any unsolicited offer to acquire us. However, these provisions may have an anti-takeover effect and may delay, deter or prevent a merger or acquisition of us by means of a tender offer, a proxy contest or other takeover attempt that a stockholder might consider in its best interest, including those attempts that might result in a premium over the prevailing market price for the shares of our Common Stock held by stockholders.

These provisions include:

Special Meetings of Stockholders

Our charter and bylaws provide that, subject to applicable law and the rights, if any, of the holders of any outstanding series of the preferred stock, special meetings of our stockholders may be called only by the chairman of our Board, our chief executive officer, or our Board pursuant to a resolution adopted by a majority of the Board. Our bylaws also prohibit the conduct of any business at a special meeting other than as specified in the notice for such meeting. These provisions may have the effect of deferring, delaying or discouraging hostile takeovers, or changes in control or management of the Company.

Advance Notice Procedures

Our bylaws establish an advance notice procedure for stockholders’ proposals to be brought before an annual meeting, including proposed nominations of persons for election to our Board. Stockholders at an annual meeting will only be able to consider proposals or nominations specified in the notice of meeting or brought before the meeting by or at the direction of our Board or by a stockholder who was a stockholder of record entitled to vote at such annual meeting on the date of the giving of the notice and on the record date for the meeting, who has given our Secretary timely written notice, in proper form, of the stockholder’s intention to bring that business before the meeting. Additionally, our bylaws provide that if the stockholder does not appear at the annual meeting of stockholders to present the proposed business, such proposed business shall not be transacted, notwithstanding that proxies in respect of such matter may have been received by us. Although our bylaws will not give our Board the power to approve or disapprove stockholder nominations of candidates or proposals regarding other business to be conducted at a special or annual meeting, the bylaws may have the effect of precluding the conduct of certain business at a meeting if the proper procedures are not followed or may discourage or deter a potential acquirer from conducting a solicitation of proxies to elect its own slate of directors or otherwise attempting to obtain control of us.

Removal of Directors; Vacancies

Our charter and bylaws provide that, subject to the rights of any holders of any class or series of capital stock then outstanding, any or all of the directors may be removed from office, with or without cause, by the affirmative vote of holders of at least two-thirds (2/3) of the voting power of all then outstanding shares of capital stock entitled to vote generally in the election of directors, voting together as a single class.

In addition, our bylaws provide that, subject to the rights granted to one or more series of preferred stock then outstanding, any newly created directorship on our Board that results from an increase in the number of directors and any vacancies on our Board resulting from death, resignation, retirement, disqualification, removal or other cause may be filled solely and exclusively by a majority vote of the remaining directors then in office, even if less than a quorum, by a sole remaining director (and not by stockholders).

Supermajority Approval Requirements

Our charter and bylaws provide that our Board is expressly authorized to adopt, amend, alter or repeal our bylaws without any action on the part of the stockholders, subject to limited exceptions. The affirmative vote of a majority of the Board shall be required to adopt, amend, alter or repeal the bylaws. The bylaws also may be adopted, amended, altered or repealed by the affirmative vote of the holders of at least two-thirds (2/3) of the voting power of all of the then-outstanding shares entitled to vote on the election of directors, in addition to any vote of the holders of any class or series of capital stock required by law (or any preferred stock designation).

The DGCL provides generally that the affirmative vote of a majority of the outstanding shares entitled to vote thereon, voting together as a single class, is required to amend a corporation’s certificate of incorporation, unless the certificate of incorporation requires a greater percentage.

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Our charter provides that, in addition to any vote of the holders of any class or series of our stock required by law or by the charter, the affirmative vote of the holders of at least two-thirds (2/3) of the voting power of all of the then-outstanding shares entitled to vote generally in the election of directors, voting together as a single class, shall be required to amend Article V (Board of Directors), Article VI (Bylaws), Article VII (Special Meeting of Stockholders; Action by Written Consent), Article VIII (Limited Liability; Indemnification), Article IX (Amendment of the Amended and Restated Certificate of Incorporation) or Article X (Exclusive Forum from Certain Lawsuits; Consent to Jurisdiction) of the charter; provided that if two-thirds (2/3) of the Board has approved such amendment or repeal or adoption, then only the affirmative vote of the holders of at least a majority of the voting power of all of the then-outstanding shares entitled to vote generally in the election of directors shall be required to amend or repeal, or adopt any provision inconsistent with, the Articles listed in this sentence.

Authorized but Unissued Shares

Delaware law does not require stockholder approval for any issuance of authorized shares. However, the listing requirements of Nasdaq, which would apply if and so long as our Common Stock is listed on Nasdaq, require stockholder approval of certain issuances equal to or exceeding 20% of the then outstanding voting power or then outstanding number of shares of our Common Stock. Additional shares that may be issued in the future may be used for a variety of corporate purposes, including future public offerings, to raise additional capital, to facilitate acquisitions and for employee benefit plans.

One of the effects of the existence of unissued and unreserved Common Stock may be to enable our Board to issue shares to persons friendly to current management, which issuance could render more difficult or discourage an attempt to obtain control of us by means of a merger, tender offer, proxy contest or otherwise, and thereby protect the continuity of management and possibly deprive stockholders of opportunities to sell their shares at prices higher than prevailing market prices.

Business Combinations

We are and will continue to be subject to the provisions of Section 203 of the DGCL. In general, Section 203 of the DGCL prohibits a publicly held Delaware corporation from engaging in a “business combination” with an “interested stockholder” for a three-year period following the time that the person becomes an interested stockholder, unless the business combination is approved in a prescribed manner. A “business combination” includes, among other things, a merger, asset or stock sale or other transaction resulting in a financial benefit to the interested stockholder. An “interested stockholder” is a person who, together with affiliates and associates, owns, or did own within three years prior to the determination of interested stockholder status, 15% or more of the corporation’s voting stock.

Under Section 203 of the DGCL, a business combination between a corporation and an interested stockholder is prohibited unless it satisfies one of the following conditions: (1) before the stockholder became an interested stockholder, the board of directors approved either the business combination or the transaction which resulted in the stockholder becoming an interested stockholder; (2) upon consummation of the transaction which resulted in the stockholder becoming an interested stockholder, the interested stockholder owned at least 85% of the voting stock of the corporation outstanding at the time the transaction commenced, excluding for purposes of determining the voting stock outstanding, shares owned by persons who are directors and also officers, and certain employee stock plan; or (3) at or after the time the stockholder became and interested stockholder, the business combination was approved by the board of directors and authorized at an annual or special meeting of the stockholders by the affirmative vote of at least two-thirds (2/3) of the outstanding voting stock which is not owned by the interested stockholder.

Under certain circumstances, Section 203 of the DGCL will make it more difficult for a person who would be an “interested stockholder” to effect various business combinations with us for a three-year period. This provision may encourage companies interested in acquiring us to negotiate in advance with our Board because the stockholder approval requirement would be avoided if our Board approves either the business combination or the transaction which results in the stockholder becoming an interested stockholder. These provisions also may have the effect of preventing changes in our Board and may make it more difficult to accomplish transactions which stockholders may otherwise deem to be in their best interests.

Dissenters’ Rights of Appraisal and Payment

Under the DGCL, with certain exceptions, our stockholders will have appraisal rights in connection with a merger or consolidation of us. Pursuant to the DGCL, stockholders who properly request and perfect appraisal rights in connection with such merger or consolidation will have the right to receive payment of the fair value of their shares as determined by the Delaware Court of Chancery.

Stockholders’ Derivative Actions

Under the DGCL, any of our stockholders may bring an action in our name to procure a judgment in our favor, also known as a derivative action, provided that the stockholders bringing the action is a holder of our shares at the time of the transaction to which the action relates or such stockholders’ stock thereafter devolved by operation of law.

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Exclusive Forum

Our charter provides that, unless the Company consents in writing to the selection of an alternative forum, the Court of Chancery of the State of Delaware will be the sole and exclusive forum for (1) any derivative action or proceeding brought on our behalf, (2) any action asserting a claim of breach of a fiduciary duty owed by any of our directors, officers or other employees to us or our stockholders, (3) any action asserting a claim against us or any director, officers or employees arising pursuant to any provision of the DGCL, our charter, or our bylaws or (4) any action asserting a claim against us, our directors, officers or employees that is governed by the internal affairs doctrine and, if brought outside of Delaware, the stockholder bringing the suit will be deemed to have consented to service of process on such stockholder’s counsel, except for, as to each of (1) though (4) above, any action (A) as to which the Court of Chancery in the State of Delaware determines that there is an indispensable party not subject to the jurisdiction of the Court of Chancery (and the indispensable party does not consent to the personal jurisdiction of the Court of Chancery within ten days following such determination), (B) which is vested in the exclusive jurisdiction of a court or forum other than the Court of Chancery, or (C) for which the Court of Chancery does not have subject matter jurisdiction. Notwithstanding the foregoing, (i) the exclusive forum provisions will not apply to suits brought to enforce any liability or duty created by the Exchange Act or any other claim for which the federal courts have exclusive jurisdiction and (ii) unless we consent in writing to the selection of an alternative forum, the federal district courts of the United States of America shall, to the fullest extent permitted by law, be the exclusive forum for the resolution of any complaint asserting a cause of action arising under the Securities Act or the rules and regulations promulgated thereunder. Although we believe these provisions benefit us by providing increased consistency in the application of Delaware law for the specified types of actions and proceedings, the provisions may have the effect of discouraging lawsuits against us or our directors and officers.

Limitations on Liability and Indemnification of Officers and Directors

The DGCL authorizes corporations to limit or eliminate the personal liability of directors to corporations and their stockholders for monetary damages for breaches of directors’ fiduciary duties, subject to certain exceptions. Our charter includes a provision that eliminates the personal liability of directors for monetary damages for any breach of fiduciary duty as a director, except to the extent such exemption from liability or limitation thereof is not permitted under the DGCL. The effect of these provisions will be to eliminate the rights of us and our stockholders, through stockholders’ derivative suits on our behalf, to recover monetary damages from a director for breach of fiduciary duty as a director, including breaches resulting from grossly negligent behavior. However, exculpation will not apply to any director if the director has acted in bad faith, knowingly or intentionally violated the law, authorized illegal dividends or redemptions or derived an improper benefit from his or her actions as a director.

Our bylaws provide that we must indemnify and advance expenses to our directors and officers to the fullest extent authorized by the DGCL and our charter and we have entered into indemnification agreements with each of our officers and directors, which require us to indemnify our directors and officers for expenses (including, without limitation, attorneys’ fees, judgments, fines, ERISA excise taxes and penalties and amounts paid in settlement) in any action or proceeding arising out of their services as one of our directors or officers or as a director or officer of any other company or enterprise to which the person provides services at our request. We also are expressly authorized to carry directors’ and officers’ liability insurance providing indemnification for our directors, officers and certain employees for some liabilities. We believe that these indemnification and advancement provisions and insurance will be useful to attract and retain qualified directors and officers.

The limitation of liability, indemnification and advancement provisions included in our charter and bylaws and the indemnification agreements may discourage stockholders from bringing a lawsuit against directors for breaches of their fiduciary duty. These provisions also may have the effect of reducing the likelihood of derivative litigation against directors and officers, even though such an action, if successful, might otherwise benefit us and our stockholders. In addition, your investment may be adversely affected to the extent we pay the costs of settlement and damage awards against directors and officers pursuant to these indemnification provisions.

There is currently no pending material litigation or proceeding involving any of our directors, officers or employees for which indemnification is sought.

Transfer Agent and Registrar

The transfer agent and registrar for our Common Stock is Continental Stock Transfer & Trust Company. The transfer agent’s address is 1 State Street, 30th Floor, New York, New York 10004.

Listing

Our Common Stock and Warrants are listed on Nasdaq under the symbols “NN” and “NNAVW,” respectively.

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PLAN OF DISTRIBUTION

We are registering the Warrant Shares covered by this prospectus to be delivered upon the exercise of the outstanding Warrants. All costs, expenses and fees connected with the registration of the Warrant Shares will be borne by us.

LEGAL MATTERS

The validity of the Registered Shares being offered by this prospectus will be passed upon for us by Hogan Lovells US LLP, Tysons, Virginia.

EXPERTS

The consolidated financial statements of NextNav Inc. appearing in NextNav Inc.’s Annual Report (Form 10-K) for the year ended December 31, 2025, have been audited by Ernst & Young LLP, independent registered public accounting firm, as set forth in their report thereon, included therein, and incorporated herein by reference. Such consolidated financial statements are incorporated herein by reference in reliance upon such report given on the authority of such firm as experts in accounting and auditing.

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WHERE YOU CAN FIND MORE INFORMATION; INCORPORATION BY REFERENCE

Available Information

We have filed with the SEC a registration statement under the Securities Act with respect to the securities offered by this prospectus. This prospectus does not contain all of the information included in the registration statement. For further information pertaining to us and our securities, reference is made to the registration statement and the exhibits and any schedules filed therewith. Statements contained in this prospectus concerning any of our contracts, agreements or other documents are not necessarily complete. If a contract or document has been filed as an exhibit to the registration statement, we refer you to the copy of the contract or document that has been filed. Each statement in this prospectus relating to a contract or document filed as an exhibit is qualified in all respects by the filed exhibit.

We are subject to the informational requirements of the Exchange Act, and file periodic and current reports, proxy statements and other information with the SEC as required by the Exchange Act. You can read the Company’s SEC filings, including this prospectus, over the Internet at the SEC’s website at www.sec.gov. Those filings are also available to the public at no cost on, or accessible through, our website under the heading “Investors” at www.nextnav.com. The information we file with the SEC or contained on or accessible through our corporate website or any other website that we may maintain is not incorporated by reference into and are not part of this prospectus or the registration statement of which this prospectus is a part.

If you would like additional copies of this prospectus, you should contact us by telephone or in writing:

NextNav Inc.

Attn: Investor Relations

11911 Freedom Drive, Ste. 200

Reston, VA 20190

Telephone: (800) 775-0982

Incorporation by Reference

The SEC allows us to “incorporate by reference” into this prospectus the information in other documents that we file with it. This means that we can disclose important information to you by referring you to those documents. The information incorporated by reference is considered to be a part of this prospectus, and information in documents that we file later with the SEC will automatically update and supersede information contained in documents filed earlier with the SEC or contained in this prospectus. We incorporate by reference in this prospectus (i) the documents listed below, (ii) all documents that we file with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act after the date of the initial filing of the registration statement of which this prospectus is included and prior to the effectiveness of such registration statement, and (iii) any future filings that we may make with the SEC under Sections 13(a), 13(c), 14, or 15(d) of the Exchange Act prior to the termination of the offering under this prospectus; provided, however, that we are not incorporating, in each case, any documents or information deemed to have been furnished and not filed, including any information that we disclose under Items 2.02 or 7.01 of any Current Report on Form 8-K, in accordance with SEC rules:

 our Annual Report on Form 10-K for the fiscal year ended December 31, 2025, filed with the SEC on March 17, 2026 (including those portions of our Definitive Proxy Statement on Schedule 14A, filed with the SEC on April 8, 2026, that are incorporated by reference into Part III of such Annual Report on Form 10-K);

 our Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2026, filed with the SEC on May 14, 2026;

 our Current Reports on Form 8-K (other than the portions thereof that are furnished and not filed) as filed with the SEC on February 27, 2026; and

 the description of our Common Stock contained in our Registration Statement on Form 8-A filed with the SEC on October 28, 2021, as updated by Exhibit 4.5 to our Annual Report on Form 10-K for the fiscal year ended December 31, 2021 filed with the SEC on March 23, 2022, including any amendments or reports filed for the purpose of updating such description.

You may request, orally or in writing, a copy of any or all of the documents incorporated herein by reference. These documents will be provided to you at no cost by contacting: NextNav Inc., Investor Relations, at 11911 Freedom Drive, Ste. 200, Reston, VA 20190 or (800) 775-0982. In addition, copies of any or all of the documents incorporated herein by reference may be accessed at our website at www.nextnav.com. The information on such website is not incorporated by reference and is not a part of this prospectus.

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15,100,000 Shares of Common Stock issuable upon exercise of Warrants

PROSPECTUS

May 26, 2026

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PART II
INFORMATION NOT REQUIRED IN PROSPECTUS

Item 14. Other Expenses of Issuance and Distribution

The following table sets forth the expenses to be borne by the registrant in connection with the issuance and distribution of the Warrant Shares being registered hereby. All amounts are estimates except the Securities and Exchange Commission registration fee.

Securities and Exchange Commission registration fee	$	23,981.07
Accounting fees and expenses		20,000.00
Legal fees and expenses		15,000.00
Financial printing and miscellaneous expenses		2,000.00
Total	$	60,981.07

Item 15. Indemnification of Directors and Officers

Section 145 of the DGCL authorizes a court to award, or a corporation’s board of directors to grant, indemnity to directors and officers in terms sufficiently broad to permit such indemnification under certain circumstances for liabilities, including reimbursement for expenses incurred, arising under the Securities Act.

Our charter provides that our directors shall not be liable to us or our stockholders for monetary damages for breach of fiduciary duty as a director, except to the extent such exemption from liability or limitation thereof is not permitted under the DGCL, as amended. Our bylaws provide for indemnification of our directors and officers to the maximum extent permitted by the DGCL.

We have entered into indemnification agreements with each of our officers and directors. These agreements require us to indemnify our directors and officers for expenses (including, without limitation, attorneys’ fees, judgments, fines, ERISA excise taxes and penalties and amounts paid in settlement) in any action or proceeding arising out of their services as one of our directors or officers or as a director or officer of any other company or enterprise to which the person provides services at our request. We believe that these charter and bylaw provisions and indemnification agreements are necessary to attract and retain qualified persons as directors and officers.

Insofar as the foregoing provisions permit indemnification of directors, executive officers, or persons controlling us for liability arising under the Securities Act, we have been informed that, in the opinion of the Commission, such indemnification is against public policy as expressed in the Securities Act and is therefore unenforceable.

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Item 16. Exhibits

Exhibit Number		Description
3.1*		Amended and Restated Certificate of Incorporation of NextNav Inc. (incorporated by reference to Exhibit 3.1 to the Registration Statement on Form S-1 filed by NextNav Inc. on November 2, 2021).
3.2*		Bylaws of NextNav Inc. (incorporated by reference to Exhibit 3.2 to the Current Report on Form 8-K filed by NextNav Inc. on October 28, 2021).
4.1*		Specimen Common Stock Certificate (incorporated by reference to Exhibit 4.1 to the Registration Statement on Form S-4 filed by NextNav Inc. on August 25, 2021).
4.2*		Amended and Restated Warrant Agreement, by and among Spartacus Acquisition Corporation, NextNav Inc., and Continental Stock Transfer & Trust Company, as warrant agent (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed by NextNav Inc. on October 28, 2021).
5.1		Opinion of Hogan Lovells US LLP.
23.1		Consent of Ernst & Young LLP.
23.2		Consent of Hogan Lovells LLP (included in Exhibit 5.1).
24.1		Power of Attorney (included on signature page).
107		Filing Fee Table.

* Filed previously.

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Item 17. Undertakings

(a) The undersigned registrant hereby undertakes:

(1) To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:

(i) To include any prospectus required by section 10(a)(3) of the Securities Act of 1933;

(ii) To reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the SEC pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than a 20% change in the maximum aggregate offering price set forth in the “Calculation of Filing Fee Tables” or “Calculation of Registration Fee” table, as applicable, in the effective registration statement; and

(iii) To include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement;

provided, however, that paragraphs (a)(1)(i), (a)(1)(ii) and (a)(1)(iii) do not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in reports filed with or furnished to the SEC by the registrant pursuant to Section 13 or Section 15(d) of the Exchange Act that are incorporated by reference in the registration statement, or is contained in a form of prospectus filed pursuant to Rule 424(b) that is part of the registration statement.

(2) That, for the purpose of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

(3) To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering;

(4) That, for the purpose of determining liability under the Securities Act of 1933 to any purchaser:

(i) Each prospectus filed by the registrant pursuant to Rule 424(b)(3) shall be deemed to be part of the registration statement as of the date the filed prospectus was deemed part of and included in the registration statement; and

(ii) Each prospectus required to be filed pursuant to Rule 424(b)(2), (b)(5) or (b)(7) as part of a registration statement in reliance on Rule 430B relating to an offering made pursuant to Rule 415(a)(1)(i), (vii) or (x) for the purpose of providing the information required by Section 10(a) of the Securities Act of 1933 shall be deemed to be part of and included in the registration statement as of the earlier of the date such form of prospectus is first used after effectiveness or the date of the first contract of sale of securities in the offering described in the prospectus. As provided in Rule 430B, for liability purposes of the issuer and any person that is at that date an underwriter, such date shall be deemed to be a new effective date of the registration statement relating to the securities in the registration statement to which the prospectus relates, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof. Provided, however, that no statement made in a registration statement or prospectus that is part of the registration statement or made in a document incorporated or deemed incorporated by reference into the registration statement or prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such effective date, supersede or modify any statement that was made in the registration statement or prospectus that was part of the registration statement or made in any such document immediately prior to such effective date; and

(5) That, for the purpose of determining liability of the registrant under the Securities Act of 1933 to any purchaser in the initial distribution of the securities, the undersigned registrant undertakes that in a primary offering of securities of the undersigned registrant pursuant to this registration statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities are offered or sold to such purchaser by means of any of the following communications, the undersigned registrant will be a seller to the purchaser and will be considered to offer or sell such securities to such purchaser:

(i) Any preliminary prospectus or prospectus of the undersigned registrant relating to the offering required to be filed pursuant to Rule 424;

(ii) Any free writing prospectus relating to the offering prepared by or on behalf of the undersigned registrant or used or referred to by the undersigned registrant;

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(iii) The portion of any other free writing prospectus relating to the offering containing material information about the undersigned registrant or its securities provided by or on behalf of the undersigned registrant; and

(iv) Any other communication that is an offer in the offering made by the undersigned registrant to the purchaser.

(b) The undersigned registrant hereby undertakes that, for purposes of determining any liability under the Securities Act of 1933, each filing of the registrant’s annual report pursuant to Section 13(a) of the Exchange Act that is incorporated by reference in this registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

(c) Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Securities Act of 1933 and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act of 1933 and will be governed by the final adjudication of such issue.

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SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the city of Reston, Commonwealth of Virginia, on May 26, 2026.

	NEXTNAV INC.
	By:	/s/ Mariam Sorond
	Name:	Mariam Sorond
	Title:	President and Chief Executive Officer

POWER OF ATTORNEY

Each person whose signature appears below constitutes and appoints each of Mariam Sorond and Timothy A. Gray, acting alone or together with another attorney-in-fact, as his or her true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for such person and in his or her name, place and stead, in any and all capacities, to sign any or all further amendments (including post-effective amendments) to this registration statement (and any additional registration statement related hereto permitted by Rule 462(b) promulgated under the Securities Act of 1933 (and all further amendments, including post-effective amendments, thereto)), and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent, or his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this registration statement has been signed by the following persons in the capacities and on the date indicated.

Signature		Capacity		Date
/s/Mariam Sorond		President, Chief Executive Officer and Chair of the Board of Directors		May 26, 2026
Mariam Sorond		(Principal Executive Officer)
/s/ Timothy A. Gray		Chief Financial Officer		May 26, 2026
Timothy A. Gray		(Principal Financial Officer)
/s/ Sammaad R. Shams		Chief Accounting Officer		May 26, 2026
Sammaad R. Shams		(Principal Accounting Officer)
/s/ Bandel L. Carano		Director		May 26, 2026
Bandel L. Carano
/s/ Lisa Hook		Director		May 26, 2026
Lisa Hook
/s/ H. Wyman Howard III		Director		May 26, 2026
H. Wyman Howard III
/s/ Alan B. Howe		Director		May 26, 2026
Alan B. Howe
/s/ Jonathan A. Marcus		Director		May 26, 2026
Jonathan A. Marcus
/s/ John B. Muleta		Director		May 26, 2026
John B. Muleta
/s/ Nicola Palmer		Director		May 26, 2026
Nicola Palmer
/s/ Lorin Selby		Director		May 26, 2026
Lorin Selby
/s/ Neil S. Subin		Director		May 26, 2026
Neil S. Subin

22

FAQ

What does NextNav's S-3 register for NN?

It registers up to 15,100,000 shares of Common Stock issuable upon exercise of outstanding warrants. The prospectus covers issuance upon cash exercise at the stated exercise price and related distribution mechanics.

At what price can warrants be exercised into NextNav (NN) shares?

Each warrant is exercisable at an exercise price of $11.50 per share. The prospectus notes exercise likelihood depends on the market price relative to this strike price.

Who receives proceeds if NextNav warrants are exercised?

The company will receive the cash proceeds from any warrant exercises; the prospectus states proceeds are intended for general corporate purposes.

How many NextNav shares were outstanding as disclosed in the filing?

The filing states there were approximately 136,436,939 shares outstanding as of May 11, 2026, disclosed in the Description of Capital Stock section.

When do NextNav's registered warrants expire?

The warrants expire on October 28, 2026 at 5:00 p.m. New York City time, unless earlier redeemed or liquidated as described in the Warrant Agreement.