SimilarWeb Ltd.'s Chief Executive Officer filed a Form 4 on September 14, 2026, disclosing the sale of 118,200 ordinary shares across two transactions on September 10 and September 11, 2026, executed under a pre-established Rule 10b5-1 trading plan.

Key Highlights

  • September 10 sale: 59,200 ordinary shares were disposed of at a weighted average price of $8.0631, with individual transactions ranging from $7.89 to $8.18.
  • September 11 sale: 59,000 ordinary shares were disposed of at a weighted average price of $8.0493, with individual transactions ranging from $7.94 to $8.12.
  • Remaining ownership: Following both transactions, the reporting person directly holds 4,333,091 ordinary shares.
  • 10b5-1 plan: Both sales were made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 1, 2026.
  • Reporting person: The filer is listed as the Chief Executive Officer of SimilarWeb Ltd. (NYSE:SMWB).

SimilarWeb CEO Share Sales Under Pre-Planned Trading Program

According to the filing, SimilarWeb Ltd.'s Chief Executive Officer sold a combined total of 118,200 ordinary shares over two consecutive trading days. On September 10, 2026, 59,200 shares were disposed of (transaction code S) at a weighted average price of $8.0631 per share. The filing notes that these shares were sold across multiple transactions with prices ranging from $7.89 to $8.18. Following that sale, the reporting person directly held 4,392,091 shares.

On September 11, 2026, an additional 59,000 ordinary shares were sold at a weighted average price of $8.0493, with individual transaction prices ranging from $7.94 to $8.12, according to the filing. After this second disposal, the reporting person's direct beneficial ownership stood at 4,333,091 ordinary shares. Both transactions are reported as direct holdings with no indirect ownership indicated in Table I.

The filing discloses that both sales "were effectuated pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 1st, 2026." The form also notes that the reporting person undertakes to provide full information regarding the number of shares sold at each separate price upon request. The Form 4 was signed by Meirav Shemesh on behalf of Oppenheimer Israel, acting as attorney-in-fact, and bears a filing date of September 14, 2026. No derivative securities transactions were reported.

What Was Disclosed

SimilarWeb Ltd.'s CEO reported the disposal of 118,200 ordinary shares on September 10-11, 2026, at weighted average prices of $8.0631 and $8.0493 respectively, under a Rule 10b5-1 plan adopted June 1, 2026. Remaining direct ownership totals 4,333,091 shares.