SEC Form 4 · accession 0001554855-26-001421
NEXTNAV INC. · NN
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Neil S Subin
Director
Period of report
Jun 22, 2026
Accepted (ET)
Jun 24, 2026 · 8:10 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001865631
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common StockF3,F1 | Jun 22, 2026 | C | 502,707 | $0.00 | A | 502,707 | I | Persian Road I, LP |
| Common StockF4 | Jun 23, 2026 | X | 250,000 | $11.50 | A | 2,765,213 | I | MILFAM Investments LLC |
| Common StockF8 | holding | — | — | — | 168,892 | D |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 5.00% Senior Secured Convertible Notes due 2028F3,F1,F2 | $12.56 | Jun 22, 2026 | C | 502,707 | D | — | — | Common Stock | 502,707 | 0 | I |
| WarrantsF4,F6,F7 | $11.50 | Jun 23, 2026 | X | 250,000 | D | — | — | Common Stock | 250,000 | 0 | I |
Explanation of responses
- F1The Reporting Person is Manager of MILFAM LLC. MILFAM LLC is the manager of MILFAM GP LLC, the general partner of Persian Road I, LP, a limited partnership ("Persian Road").
- F2Pursuant to a Note Purchase Agreement with NextNav Inc. (the "Issuer"), dated March 12, 2025 (the "NPA"), Persian Road purchased $6,300,000 aggregate principal amount of the Issuer's 5.00% Senior Secured Convertible Notes due 2028 (the "2028 Notes"), at a price of 100% of the principal amount. The 2028 Notes are convertible, as of the date of issue on March 27, 2025, into the Issuer's shares of common stock, $0.0001 par value per share (the "Common Stock"), at a price of $12.56 per share. The 2028 Notes originally had a maturity date of June 30, 2028. On June 15, 2026, the Issuer elected to redeem all outstanding 2028 Notes pursuant to their terms, which accelerated the last date for their conversion to June 23, 2026. Persian Road converted the 2028 Notes prior to such redemption deadline. The Reporting Person disclaims any beneficial ownership of the reported securities other than to the extent of any pecuniary interest he may have therein, directly or indirectly.
- F3The Reporting Person previously reported beneficial ownership of 2028 Notes representing the number of shares into which the principal amount was convertible. At the time of conversion, the 2028 Notes converted into 502,707 shares of Common Stock, consisting of 501,592 shares attributable to outstanding principal and the remaining shares attributable to accrued but unpaid interest. Accordingly, the number of shares of Common Stock acquired upon conversion exceeds the number of shares initially reported as underlying the 2028 Notes.
- F4The Reporting Person is the Manager of MILFAM LLC. MILFAM LLC is the manager of MILFAM Investments LLC ("MILFAM Investments"). The Reporting Person disclaims any beneficial ownership of the reported securities other than to the extent of any pecuniary interest he may have therein, directly or indirectly.
- F5Represents the cash exercise of 250,000 warrants (the "Public Warrants") to purchase shares of the Issuer's Common Stock at an exercise price of $11.50 per share, pursuant to the terms of the Amended and Restated Warrant Agreement, dated as of October 28, 2021 (the "Warrant Agreement"), by and among Spartacus Acquisition Corporation, the Issuer, and Continental Stock Transfer & Trust Company, as warrant agent. MILFAM Investments paid the aggregate exercise price in cash and received 250,000 shares of Common Stock upon exercise. No separate consideration was received for the Public Warrants upon exercise.
- F6The Public Warrants became exercisable 30 days after the completion of the Issuer's initial business combination, which closed on October 28, 2021 (the "Business Combination").
- F7The Public Warrants originally had an expiration date five years after the completion of the Business Combination. On May 27, 2026, the Issuer announced that it elected to redeem all outstanding Public Warrants, and set a redemption date of June 26, 2026 (the "Redemption Date"). Holders of Public Warrants may exercise their Public Warrants for cash at the exercise price at any time prior to 5:00 p.m. New York City time on the Redemption Date, in accordance with the terms of the Warrant Agreement. MILFAM Investments exercised the Public Warrants prior to such redemption deadline.
- F8Includes 7,550 restricted shares, 100% of which will vest on May 1, 2027, subject to the Reporting Person's continued service through the applicable vesting date.