Every Form 4 that Similarweb Ltd. (SMWB) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow SMWB and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full SMWB filings page.
SIMILARWEB LTD. (SMWB) reported that Chief Executive Officer Offer Or sold a total of 76,119 Ordinary Shares in open-market transactions on September 16 and 17, 2026 at weighted average prices of $8.3976 and $8.3460 per share, respectively. These sales were effectuated pursuant to a Rule 10b5-1 trading plan adopted on June 1, 2026, and the prices reflect weighted averages over multiple trades within stated price ranges.
SIMILARWEB LTD. (SMWB) reports that Chief Executive Officer Offer Or sold a total of 79,591 Ordinary Shares in open‑market transactions on September 14 and 15, 2026 under a pre‑arranged Rule 10b5-1 trading plan. An earlier pair of Forms 4 had inadvertently double‑reported these sales; this amendment clarifies that only one set of transactions occurred.
SIMILARWEB LTD. (SMWB) reported that Chief Executive Officer Offer Or sold a total of 79,591 Ordinary Shares in open-market or private transactions on September 14 and 15, 2026. The sales were made under a Rule 10b5-1 trading plan adopted on June 1, 2026 and reported at weighted-average prices.
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) 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. 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. Chief Executive Officer Offer Or reported an open-market purchase of the company’s Ordinary Shares. He bought 50,000 shares on 2026-06-01 at an average price of $4.15 per share. After this transaction, he directly owns 4,744,396 Ordinary Shares.
SIMILARWEB LTD. director Eilam Barak made an open-market purchase of Ordinary Shares. He bought 50,000 shares on May 21, 2026 at a weighted average price of $3.86 per share, bringing his direct holdings to 101,315 shares. The price is reported as a weighted average, and Barak has undertaken to provide full trade details, including individual prices and share amounts, upon request.
SIMILARWEB LTD. director Beit-On Harel Moshe reported an open-market purchase of 75,000 Ordinary Shares on May 20, 2026. The shares were bought at a weighted average price of $3.89 per share, and his direct holdings increased to 10,885,778 Ordinary Shares. The price represents an average across multiple trade executions, as noted in the filing.
SIMILARWEB LTD. Chief Executive Officer Offer Or reported open-market purchases of the company’s Ordinary Shares. On May 18–19, 2026, he bought a total of 56,105 shares at prices ranging from $3.20 to $3.58 per share. Following these transactions, he directly owns 4,694,396 Ordinary Shares. The filing notes that the reported prices are weighted averages and that detailed trade breakdowns are available on request.
SIMILARWEB LTD. director Tamar Rapaport-Dagim reported an open-market purchase of Ordinary Shares. On May 18, 2026, she bought 40,000 Ordinary Shares at a weighted average price of $3.222 per share.
After this transaction, Rapaport-Dagim directly holds 63,584 Ordinary Shares of Similarweb. The reported price is an average; she has undertaken to provide the full breakdown of share amounts and prices upon request.