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Sono Group N.V.

SSM · Nasdaq

3 reporting failures in the last 12 months

Companies at this level ended the following year delisted, bankrupt, restated or silent 13.1% of the time, against 4.0% for companies with a clean record.

$7Mpublic float
2026-05-15most recent failure

Score over time

01234202520262025-04-01 · score 12025-03-31 filed late (10-K) · staff or resources2025-07-01 · score 22025-05-16 filed late (10-Q) · staff or resources2025-03-31 filed late (10-K) · staff or resources2025-10-01 · score 32025-08-14 filed late (10-Q) · staff or resources2025-05-16 filed late (10-Q) · staff or resources2025-03-31 filed late (10-K) · staff or resources2026-01-01 · score 42025-11-17 filed late (10-Q) · accounts not ready2025-08-14 filed late (10-Q) · staff or resources2025-05-16 filed late (10-Q) · staff or resources2025-03-31 filed late (10-K) · staff or resources2026-04-01 · score 42026-03-31 filed late (10-K) · going concern2025-11-17 filed late (10-Q) · accounts not ready2025-08-14 filed late (10-Q) · staff or resources2025-05-16 filed late (10-Q) · staff or resources2026-07-01 · score 42026-05-15 filed late (10-Q) · going concern2026-03-31 filed late (10-K) · going concern2025-11-17 filed late (10-Q) · accounts not ready2025-08-14 filed late (10-Q) · staff or resources2026-10-01 · score 32026-05-15 filed late (10-Q) · going concern2026-03-31 filed late (10-K) · going concern2025-11-17 filed late (10-Q) · accounts not ready

Hover or tap a dot to see the filings behind that score.

Why they said they were late

Sono Group N.V.’s (the "Registrant") management has been working to finalize the Registrant’s Quarterly Report on Form 10-Q for the three months ended March 31, 2026 (the "Quarterly Report"). The preparation of the Quarterly Report presented significant accounting complexity in the current period, including: (i) the change in the Registrant’s reporting currency from the euro to the U.S. dollar effective January 1, 2026, which required the recasting of all comparative prior-period financial information presented in the Quarterly Report; (ii) the first-time presentation of the Registrant’s legacy solar operations as discontinued operations and the classification of the related assets and liabilities as held for sale; (iii) the first-time application of fair-value accounting for the Registrant’s digital asset holdings and the accounting for complex derivative instruments arising from the Registrant’s digital asset treasury strategy, including written covered call options and embedded conversion features in the Registrant’s convertible debentures; and (iv) the evaluation and disclosure of the subsequent disposition of the Registrant’s subsidiary, Sono Motors GmbH, on May 4, 2026. The preparation and review of the disclosures required in connection with the foregoing matters, including the going concern analysis and the Subsequent Events note, required additional time and coordination with the Registrant’s independent registered public accounting firm. As a result, the Registrant is unable to file its Quarterly Report within the prescribed time period without unreasonable effort or expense. The Registrant expects to be able to file within the additional time allowed by this report. 2

NT 10-Q, filed 2026-05-15 · going concern

What it filed

2026-05-15filed late (10-Q)going concern SEC →

Sono Group N.V.’s (the "Registrant") management has been working to finalize the Registrant’s Quarterly Report on Form 10-Q for the three months ended March 31, 2026 (the "Quarterly Report"). The preparation of the Quarterly Report presented significant accounting complexity in the current period, including: (i) the change in the Registrant’s reporting currency from the euro to the U.S. dollar effective January 1, 2026, which required the recasting of all comparative prior-period financial information presented in the Quarterly Report; (ii) the first-time presentation of the Registrant’s legacy solar operations as discontinued operations and the classification of the related assets and liabilities as held for sale; (iii) the first-time application of fair-value accounting for the Registrant’s digital asset holdings and the accounting for complex derivative instruments arising from the Registrant’s digital asset treasury strategy, including written covered call options and embedded conversion features in the Registrant’s convertible debentures; and (iv) the evaluation and disclosure of the subsequent disposition of the Registrant’s subsidiary, Sono Motors GmbH, on May 4, 2026. The preparation and review of the disclosures required in connection with the foregoing matters, including the going concern analysis and the Subsequent Events note, required additional time and coordination with the Registrant’s independent registered public accounting firm. As a result, the Registrant is unable to file its Quarterly Report within the prescribed time period without unreasonable effort or expense. The Registrant expects to be able to file within the additional time allowed by this report. 2

2026-03-31filed late (10-K)going concern SEC →

Sono Group N.V.'s (the "Registrant") management has been working to finalize the Registrant's Annual Report on Form 10-K for the fiscal year ended December 31, 2025. The Registrant experienced turnover of certain key members of its internal accounting staff, which required additional time to complete the preparation and review of the financial statements and related disclosures. In addition, subsequent to December 31, 2025, the Registrant underwent a significant strategic transformation, including the adoption of a digital asset treasury strategy, the completion of multiple financing transactions, and the initiation of its exit from the legacy solar operations. The preparation of the disclosures required in connection with these subsequent events, including the going concern analysis and the Subsequent Events note, required additional time and coordination with the Registrant's independent registered public accounting firm. As a result, the Registrant is unable to file its Annual Report on Form 10-K within the prescribed time period without unreasonable effort or expense. The Registrant expects to be able to file within the additional time allowed by this report

2025-11-17filed late (10-Q)accounts not ready SEC →

Sono Group N.V.’s (the “Registrant”) management has been working to finalize the accounting adjustments resulting from the Registrant’s initial transition from International Financial Reporting Standards (“IFRS”) to U.S. Generally Accepted Accounting Principles (“U.S. GAAP”). In addition, the Company is finalizing the accounting for the September 5, 2025 exchange of outstanding convertible debentures into preferred shares, including classification, measurement and related EPS and disclosure impacts. As a result, the Registrant is unable to file its Quarterly Report on Form 10-Q within the prescribed time period without unreasonable effort or expense. The Registrant expects to be able to file within the additional time allowed by this report. 2

2025-08-14filed late (10-Q)staff or resources SEC →

Sono Group N.V.’s (the “Registrant”) management has been working to finalize the accounting adjustments resulting from the Registrant’s initial transition from International Financial Reporting Standards (“IFRS”) to U.S. Generally Accepted Accounting Principles (“U.S. GAAP”). In addition, the Company experienced a turnover of certain key members of the internal accounting staff, including the chief financial officer and controller. As a result, the Registrant is unable to file its Quarterly Report on Form 10-Q within the prescribed time period without unreasonable effort or expense. The Registrant expects to be able to file within the additional time allowed by this report. 2

2025-05-16filed late (10-Q)staff or resources SEC →

Sono Group N.V.’s (the “Registrant”) management has been working to finalize the accounting adjustments resulting from the Registrant’s initial transition from International Financial Reporting Standards (“IFRS”) to U.S. Generally Accepted Accounting Principles (“U.S. GAAP”). In addition, the Company experienced a turnover of certain key members of the internal accounting staff, including the chief financial officer and controller. As a result, the Registrant is unable to file its Quarterly Report on Form 10-Q within the prescribed time period without unreasonable effort or expense. The Registrant expects to be able to file within the additional time allowed by this report. 2

2025-03-31filed late (10-K)staff or resources SEC →

Sono Group N.V.’s (the “Registrant”) management has been working to finalize the accounting adjustments resulting from the Registrant’s initial transition from International Financial Reporting Standards (“IFRS”) to U.S. Generally Accepted Accounting Principles (“U.S. GAAP”). In addition, the Company experienced a turnover of certain key members of the internal accounting staff, including the chief financial officer and controller. As a result, the Registrant is unable to file its Annual Report on Form 10-K within the prescribed time period without unreasonable effort or expense. The Registrant expects to be able to file within the additional time allowed by this report

About this score

reportingrisk.com scores every active US filer on three things a company tells the SEC about itself: late-filing notices on Form NT, 8-K item 4.02 (past accounts declared unreliable) and 4.01 (auditor changes). 1,012 are flagged today.

Every score is frozen and checked twelve months later. Across 91,452 of them, a company scoring 4 or more ended that year delisted, bankrupt, restated or silent 17.2% of the time, against 4.0% for a clean record. Scores before 2026-09-27 were reconstructed from the filing history as it stood at each date, so the record is a backtest rather than years of live calls.

See the ledger → Every company the score flagged that later failed, what it told the SEC on the way down, and the ones it missed.

Every item above is a filing this company made with the SEC.
Snapshot 2026-11-04 · data from SEC EDGAR (public domain) · not investment advice

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