Sono Group N.V.

Overview

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• TickerSSM on Nasdaq¹
• IndustryFinance Services¹
• HeadquartersP7¹
• Incorporated inNetherlands²
• Business addressWaldmeisterstrasse 93, Munich, 2M 80935²
• Filer category, Emerging growth company²

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During the year ended December 31, 2025, our business consisted of our legacy solar operations conducted through the Subsidiary. Accordingly, references in this Item 1 to the terms “Sono Motors,” “Sono,” “the Companies,” “we,” “our,” “ours,” “ourselves,” “us” or similar terms, refer to Sono Group N.V. together with the Subsidiary with respect to the fiscal years ended December 31, 2025 and 2024, and refer to Sono Group N.V. with respect to subsequent developments as described below, unless the context requires otherwise.⁴ From its latest annual report

Corporate structure

Sono Group N.V. sits at the top of its group. 3 entities, 2 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

Built from subsidiaries listed in Exhibit 21 of annual reports filed with the SEC; major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

What it owns

What Sono Group N.V. reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.

Property and equipment

Inventory

Properties, in its own words

Our headquarters are located at Waldmeisterstraße 93, 80935 Munich, Germany. We have leased this 1,455-square meter property for use as an office, workshop, electronics lab and warehouse space for a fixed term until April 30, 2026. Following the expiration, we have the option to extend the term by five years.

In addition, in February 2024 we signed a lease for a 900-square foot property at 10101 Lantana Rd., Suite N, Lake Worth, Florida 33449 for use as an office space. The lease was for a fixed term of one year until February 28, 2025 and it automatically renewed for one year. Pursuant to the terms of the agreement, the Company gave 90 days’ notice in September 2025 and the agreement terminated on December 31, 2025.

Item 2 of the 10-K filed Apr 1, 2026.⁴

Leadership

Who has led Sono Group N.V., and when. Pick a name to see everywhere that person has worked.

• Chief financial officerMartin Scott Calhoun Jan 14, 2025 to Jan 14, 2025¹²

Subsidiaries and ownership

Subsidiaries (Exhibit 21)

• Sono Group S.à r.l. Luxembourg³
• Sono Motors GmbH Germany³

The subsidiaries the company lists in Exhibit 21 of its annual report, as filed.

Timeline

1. Aug 31, 20268-K Entered a material agreement; Other events¹⁶
2. May 8, 20268-K Entered a material agreement; Completed an acquisition or sale; Exit or restructuring costs¹⁷
3. Mar 19, 20268-K Exit or restructuring costs; Other events¹⁸
4. Mar 16, 20268-K Entered a material agreement; New debt or obligation; Other events¹⁹
5. Mar 10, 20268-K Entered a material agreement; Unregistered sale of shares²⁰
6. Feb 24, 20268-K Entered a material agreement; Unregistered sale of shares²¹
7. Jan 29, 20268-K Entered a material agreement; Unregistered sale of shares²²
8. Sep 9, 20258-K Executive or director change; Regulation FD disclosure²³
9. Sep 5, 20258-K Entered a material agreement; Unregistered sale of shares; Other events²⁴
10. Sep 4, 20258-K Other events²⁵
11. Sep 3, 20258-K Other events²⁶
12. Aug 14, 20258-K Shareholder vote²⁷

Calendar

Coming up

1. Nov 18, 2026Reports results for the quarter ending Sep/2026²⁸

Upcoming dates from Nasdaq's calendar; past results from the company's 8-K filings (Item 2.02). The full markets calendar

Filings

191 filings to the SEC since October 2021: 5 annual reports, 5 quarterly reports, 23 major events, 8 insider forms, 21 large holders, 129 other. The latest 20:

1. Oct 13, 2026SCHEDULE 13G/A EDGAR
2. Oct 1, 2026SCHEDULE 13D EDGAR
3. Sep 10, 2026144 EDGAR
4. Sep 8, 2026SCHEDULE 13D EDGAR
5. Sep 3, 20264 EDGAR
6. Sep 2, 2026425 EDGAR
7. Sep 2, 2026424B5 EDGAR
8. Aug 31, 20264 EDGAR
9. Aug 31, 2026425 EDGAR
10. Aug 31, 20268-K EDGAR
11. Aug 14, 2026SCHEDULE 13G/A EDGAR
12. Aug 14, 202610-Q EDGAR
13. Aug 13, 2026SCHEDULE 13G/A EDGAR
14. Aug 12, 20264 EDGAR
15. Aug 10, 2026144 EDGAR
16. Jul 8, 2026SCHEDULE 13G EDGAR
17. May 19, 202610-Q EDGAR
18. May 15, 2026SCHEDULE 13G EDGAR
19. May 15, 2026NT 10-Q EDGAR
20. May 14, 2026EFFECT EDGAR

Every filing from the last five years, summarized. The full record is on SEC EDGAR.

Insider trades

3 open-market trades by officers, directors and large owners since October 2021: 0 buys and 3 sales. Grants, option exercises and gifts are left out.

From Forms 4 filed with the SEC.

Major holders

Investors who own more than 5% of the shares must tell the SEC: a 13D if they may seek to influence the company, a 13G if they hold passively.

• 255 Ug Haftungsbeschrankt Bambino V. V.SCHEDULE 13G/A, 3 filings Jun 14, 2024 to Oct 13, 2026²⁹
• Alpine Fox Capital LLCSCHEDULE 13D, 1 filing Oct 1, 2026³⁰
• Christopher Michael KellySCHEDULE 13D, 1 filing Sep 8, 2026³¹
• Anson Funds Management LPSCHEDULE 13G/A, 2 filings May 15, 2026 to Aug 14, 2026³²
• Mizuho Financial GroupSCHEDULE 13G/A, 2 filings Nov 13, 2025 to Aug 13, 2026³³
• CantorSCHEDULE 13G, 1 filing Feb 13, 2026³⁴
• Jona Johannes ChristiansSC 13D/A, 4 filings Feb 14, 2022 to Jun 13, 2024³⁵
• Laurin Sinan Paul HahnSC 13D/A, 4 filings Feb 14, 2022 to Jun 13, 2024³⁶
• SVSE LLCSC 13D, 1 filing Apr 11, 2024³⁷
• Marita HansenSC 13G/A, 2 filings May 31, 2022 to Jun 23, 2022³⁸

SEC filer profile

How Sono Group N.V. is registered with the Securities and Exchange Commission, from its EDGAR record and the cover page of its latest annual report.

• Name on EDGARSono Group N.V.¹
• CIK0001840416
• Employer ID (EIN)98-1828632⁴
• Filer statusNon-accelerated filer an emerging growth company; a smaller reporting company; not a shell company⁴
• Incorporated inNetherlands⁴
• Fiscal year endsDecember 31¹
• Industry code (SIC)6199 Finance Services¹
• SEC reviewing officeOffice of Crypto Assets, Division of Corporation Finance¹
• Business addressWaldmeisterstrasse 93, Munich, 2M 80935¹
• Phone49-89-45205818¹
• Shares outstanding1,424,834 Ordinary Shares shares; 40,000 High Voting Shares shares as of Mar 25, 2026⁴
• Public float$7.2M as of Jun 30, 2025⁴
• Auditorauditor, Glastonbury, Connecticut PCAOB ID 606; no auditor attestation of internal control over financial reporting⁴
• On EDGAR sinceJan 20, 2021¹
• Filings199 in all: 6-K (65), 8-K (22), CORRESP (10), UPLOAD (8), EFFECT (6), 10-Q (5), 3 (5), DRSLTR (4)¹
  All 43 form types

  NT 10-Q (4), SC 13D (4), SC 13D/A (4), SCHEDULE 13G (4), 20-F (3), 4 (3), 424B3 (3), DEFA14A (3), F-1 (3), SC 13G (3), SCHEDULE 13G/A (3), 10-K (2), 144 (2), 424B4 (2), 425 (2), 6-K/A (2), 8-A12B (2), CERT (2), DRS (2), DRS/A (2), F-1/A (2), NT 10-K (2), NT 20-F (2), SCHEDULE 13D (2), 25-NSE (1), 424B5 (1), 8-K/A (1), DEF 14A (1), F-3 (1), F-3/A (1), POS AM (1), PRE 14A (1), S-3 (1), S-8 (1), SC 13G/A (1)

• Latest filingsAnnual report (10-K) Apr 1, 2026
  Quarterly report (10-Q) Aug 14, 2026
  Proxy statement (DEF 14A) Jul 24, 2025
  Latest 8-K (8-K) Aug 31, 2026

Securities registered for trading

From the cover page of the 10-K filed Apr 1, 2026 (Section 12(b) of the Exchange Act).⁴

Risk factors and legal proceedings

Legal proceedings

From time to time, we have been and may again become involved in various claims and legal proceedings that arise in the ordinary course of our business. We are currently not a party to any material legal proceedings.

Regardless of the outcome, litigation can have an adverse effect on us because of defense and settlement costs, diversion of management resources and other factors.

The opening of Item 3, Legal Proceedings.⁴