Similarweb (NYSE: SMWB) affiliate to sell 40,000 shares

Rhea-AI Filing Summary

Similarweb Ltd. (symbol SMWB) filed an amendment to report a planned sale of 40,000 ordinary shares through broker Virtu on the NYSE. The shares have an aggregate market value of $351,600.00. As context, 86,962,202 ordinary shares were outstanding as of 08/13/2026. The shares to be sold were acquired on 02/20/2026 via an open market purchase for cash.

Key Figures

Shares to be sold: 40,000 shares Aggregate market value of shares to be sold: $351,600.00 Shares outstanding: 86,962,202 shares +1 more

4 metrics

Shares to be sold 40,000 shares Ordinary shares planned for sale under the Form 144/A amendment

Aggregate market value of shares to be sold $351,600.00 Market value of the 40,000 ordinary shares to be sold

Shares outstanding 86,962,202 shares Ordinary shares outstanding as of 08/13/2026

Date of acquisition of shares 02/20/2026 Acquisition date of the 40,000 ordinary shares via open market purchase

Key Terms

ordinary shares, aggregate market value, open market, securities to be sold

4 terms

ordinary shares financial

"Ordinary shares | Virtu 1633 broadway NEW YORK NY 10019 | 40000"

Ordinary shares are a type of ownership stake in a company, giving shareholders a right to participate in the company’s profits and decision-making through voting. They are similar to owning a piece of a business, and their value can rise or fall based on the company's performance. Investors buy ordinary shares to potentially earn dividends and benefit from the company's growth over time.

aggregate market value financial

"40000 | 351600.00 | 86962202 | 08/13/2026 | NYSE"

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.

open market financial

"Purchase in open market | Open Market | | | 40000"

An open market is a system where buying and selling of goods, services, or financial assets happen freely without restrictions or special controls. For investors, it means they can trade assets easily and quickly, which helps determine fair prices based on supply and demand. This environment encourages transparency and competition, making it easier to buy or sell with confidence.

securities to be sold regulatory

"144/A: Securities To Be Sold"

FAQ

What does Similarweb (SMWB) report in this Form 144/A amendment?

Similarweb reports a planned sale of 40,000 ordinary shares by an affiliate under Rule 144. The shares are expected to be sold on the NYSE through Virtu, with an aggregate market value of $351,600.00.

How many SMWB shares are planned to be sold and on which exchange?

The filing states that 40,000 ordinary shares of SMWB are planned to be sold. The shares are listed for sale on the NYSE, with Virtu identified as the broker handling the transactions.

What is the aggregate market value of the SMWB shares to be sold?

The aggregate market value of the 40,000 SMWB ordinary shares planned for sale is $351,600.00. This reflects the market value at the time referenced in the filing for the proposed open market transactions.

How many Similarweb (SMWB) shares were outstanding at the referenced date?

The filing lists 86,962,202 ordinary shares of SMWB as outstanding as of 08/13/2026. This figure provides context for the proposed 40,000-share sale relative to the company’s total outstanding equity.

When and how were the SMWB shares to be sold originally acquired?

The 40,000 SMWB ordinary shares were acquired on 02/20/2026. They were obtained via a purchase in the open market, with the consideration paid in cash, according to the acquisition details disclosed.

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

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Available on EDGAR 08/17/2026 - 07:43 AM Accepted by SEC EDGAR 08/17/2026 - 07:42 AM 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/A

144/A: Filer Information

Filer CIK
Filer CCC
Previous Accession Number Of The Filing
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144/A: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

144/A: 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
Ordinary shares	Virtu 1633 broadway NEW YORK NY 10019	40000	351600.00	86962202	08/13/2026	NYSE

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/A: 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 *
Ordinary shares	02/20/2026	Purchase in open market	Open Market			40000	02/20/2026	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/A: Securities Sold During The Past 3 Months

Nothing to Report

144/A: Remarks and Signature

Remarks

Date of Notice

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)