Sono Group holder plans sale of 141,916 shares

Rhea-AI Filing Summary

Sono Group N.V. (SSM) has a notice from 10% stockholder Bambino 255 V V UG haftungsbeschrankt under Rule 144 indicating an intention to sell up to 141,916 shares of common stock through broker Stifel Nicolaus & Company Inc. on or about September 10, 2026 on Nasdaq, with an aggregate market value of $298,123.00.

The seller previously acquired 177,417 shares from the issuer for cash on February 1, 2024 and has reported several sales of common stock during the past three months, all for cash consideration.

Key Figures

Shares to be sold under Rule 144: 141,916 shares Aggregate market value of shares to be sold: $298,123.00 Shares of the class outstanding: 1,424,834 shares +4 more

7 metrics

Shares to be sold under Rule 144 141,916 shares Potential sale of Sono Group N.V. common stock through Stifel Nicolaus & Company Inc.

Aggregate market value of shares to be sold $298,123.00 Value associated with the 141,916 shares referenced in the Rule 144 notice

Shares of the class outstanding 1,424,834 shares Total number of Sono Group N.V. common shares of this class outstanding

Shares acquired from issuer 177,417 shares Common stock purchased for cash from Sono Group N.V. on February 1, 2024

Shares sold on August 10, 2026 20,091 shares for $65,055.00 Sale of Sono Group N.V. common stock by Bambino 255 V V UG haftungsbeschrankt

Shares sold on August 27, 2026 4,000 shares for $11,016.00 Sale of Sono Group N.V. common stock by Bambino 255 V V UG haftungsbeschrankt

Shares sold on September 1, 2026 11,410 shares for $42,371.00 Sale of Sono Group N.V. common stock by Bambino 255 V V UG haftungsbeschrankt

Key Terms

Rule 144, 10% Stockholder, aggregate market value

3 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

10% Stockholder financial

"In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice. 10% Stockholder"

aggregate market value financial

"Common Stock | Stifel Nicolaus & Company Inc ... | 141916 | 298123.00 | 1424834"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

FAQ

What does the Form 144 filing disclose for Sono Group N.V. (SSM)?

It discloses that 10% stockholder Bambino 255 V V UG haftungsbeschrankt has filed a Rule 144 notice indicating an intention to sell up to 141,916 shares of Sono Group N.V. common stock through broker Stifel Nicolaus & Company Inc. on or about September 10, 2026.

How many Sono Group N.V. (SSM) shares may be sold under this Rule 144 notice?

The notice contemplates the potential sale of up to 141,916 shares of Sono Group N.V. common stock, with an indicated aggregate market value of $298,123.00, in transactions to be executed through Stifel Nicolaus & Company Inc. on Nasdaq.

Who is selling Sono Group N.V. (SSM) shares under this Form 144?

The selling security holder is Bambino 255 V V UG haftungsbeschrankt, identified as a 10% Stockholder. Stifel Nicolaus & Company Inc. is listed as the broker handling the potential sale of Sono Group N.V. common stock under Rule 144.

What prior sales of Sono Group N.V. (SSM) shares were reported in the last three months?

Bambino 255 V V UG haftungsbeschrankt reported three sales of Sono Group N.V. common stock: 20,091 shares on August 10, 2026 for $65,055.00; 4,000 shares on August 27, 2026 for $11,016.00; and 11,410 shares on September 1, 2026 for $42,371.00.

When and how did the selling holder acquire Sono Group N.V. (SSM) shares?

The filing states that 177,417 shares of Sono Group N.V. common stock were acquired on February 1, 2024 from the issuer in a purchase for cash, which are securities now referenced in the Rule 144 notice.

On which exchange are the Sono Group N.V. (SSM) shares intended to be sold?

The shares covered by the Rule 144 notice are Sono Group N.V. common stock intended to be sold on Nasdaq, with Stifel Nicolaus & Company Inc. listed as the broker handling the transactions.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/10/2026 - 04:15 PM Accepted by SEC EDGAR 09/10/2026 - 04:14 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0002027046
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Sono Group N.V.
SEC File Number	001-41066
Address of Issuer	WALDMEISTERSTRASSE 93 MUNICH GERMANY 80935
Phone	49-89-45205818
Name of Person for Whose Account the Securities are To Be Sold	Bambino 255 V V UG haftungsbeschrankt
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	10% Stockholder

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common Stock	Stifel Nicolaus & Company Inc 501 N Broadway St. Louis MO 63102	141916	298123.00	1424834	09/10/2026	Nasdaq

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common Stock	02/01/2024	Purchase	Issuer			177417	02/01/2024	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Bambino 255 V V UG haftungsbeschrankt 301 COROMAR DRIVE SANTA BARBARA CA 93117	Common Stock	08/10/2026	20091	65055.00
Bambino 255 V V UG haftungsbeschrankt 301 COROMAR DRIVE SANTA BARBARA CA 93117	Common Stock	08/27/2026	4000	11016.00
Bambino 255 V V UG haftungsbeschrankt 301 COROMAR DRIVE SANTA BARBARA CA 93117	Common Stock	09/01/2026	11410	42371.00

144: Remarks and Signature

Remarks
Date of Notice	09/10/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Azad Daswani, as a duly authorized representative of STIFEL, as attorney-in-fact for Bambino 255 V V UG haftungsbeschrankt
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)