Similarweb Ltd. filings document the reporting obligations of a foreign private issuer whose ordinary shares trade on the NYSE. Its Form 6-K reports furnish quarterly and annual-result materials, shareholder letters, annual general meeting notices, proxy statements, voting results and current governance updates.
The filing record also covers board and finance leadership changes, ordinary-share matters, equity compensation registration references on Form S-8, shelf-registration references on Form F-3 and selected insider share activity. These disclosures connect Similarweb's digital intelligence business with formal reporting on operating results, corporate governance, shareholder approvals and capital-structure administration.
SIMILARWEB LTD. (SMWB) reported that Chief Executive Officer Offer Or sold a total of 79,591 Ordinary Shares in two open-market transactions on September 14 and September 15, 2026. The sales were carried out under a Rule 10b5-1 trading plan adopted on June 1, 2026 and used weighted-average pricing across multiple trade executions.
SIMILARWEB LTD. (SMWB) reported that Chief Executive Officer Offer Or sold a total of 118,200 Ordinary Shares in open-market transactions under a pre-arranged Rule 10b5-1 trading plan adopted on June 1, 2026. The sales on September 10 and 11, 2026 were executed at weighted average prices with specified intra-day price ranges.
SIMILARWEB LTD. (SMWB) reported that Chief Executive Officer Offer Or sold a total of 147,000 ordinary shares in two open-market transactions on September 8 and 9, 2026 under a Rule 10b5-1 trading plan adopted on June 1, 2026, at weighted average prices around $8 per share.
SIMILARWEB LTD. (SMWB) received a notice that company officer Or Offer plans to sell ordinary shares under SEC Rule 144 through Oppenheimer & Co. Inc. The notice covers up to 1,000,000 ordinary shares, with a stated aggregate market value of $8,840,000, to be sold pursuant to a pre-arranged Rule 10b5-1 trading plan adopted on June 1, 2026.
The filing also reports recent Rule 144 sales of Similarweb ordinary shares over the prior three months, providing context on the scale and timing of Or Offer’s ongoing share-disposition program relative to the company’s total of 86,962,202 ordinary shares outstanding.
SIMILARWEB LTD. (SMWB) reported that Chief Executive Officer Offer Or exercised several option grants and sold the resulting ordinary shares on August 26, 2026. He exercised options covering 383,127 ordinary shares at exercise prices of $0.40, $2.71, and $3.04 per share and acquired the corresponding shares. On the same date, he sold all 383,127 ordinary shares in a series of open market or private transactions at weighted average prices ranging from about $9.00 to just over $9.05 per share. The form does not report his post-transaction share or option holdings.
SIMILARWEB LTD. (SMWB) received a Rule 144 notice from officer Or Offer covering planned sales of ordinary shares. The shares are to be sold through Oppenheimer & Co. Inc. on or after August 26, 2026 and will come from ordinary shares acquired upon cash exercise of employee stock options in four separate blocks.
The notice also lists prior sales by Or Offer during the past three months: ordinary shares sold on August 13, 2026 and August 14, 2026 for stated share amounts and dollar values. This filing is a disclosure of potential resale activity by an existing holder rather than a new share issuance by SIMILARWEB LTD.
SIMILARWEB LTD. Chief Executive Officer Offer Or reported multiple transactions in the company’s Ordinary Shares on August 13–14, 2026. He exercised options covering 563,492 Ordinary Shares at exercise prices of $0.40 and $3.04 per share, and the underlying shares were acquired and then sold on the same dates.
Across these transactions, he sold a total of 709,597 Ordinary Shares in market sales at weighted average prices generally in the $8.66–$9.005 range, according to the price footnotes. The filing does not state his resulting share ownership after these transactions.
Similarweb Ltd. filed a notice of proposed sale of ordinary shares by an affiliated holder. The filing lists a planned sale of 134,992 ordinary shares through Oppenheimer & Co. Inc., with an aggregate market value of $1,216,277.92. Ordinary shares outstanding were 86,962,202 as of the notice date; this is a baseline figure, not the amount being sold. The shares to be sold were originally acquired upon exercise of employee stock options in 2014 and 2021. Over the prior three months, the same holder sold 574,605 ordinary shares for $5,057,419.85.
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.