SEC Form 4 reporting owner

Offer Or

Offer Or has filed 28 Form 4 transactions reported between May 18, 2026 and September 24, 2026, as Chief Executive Officer of SIMILARWEB LTD..

Name as filed: Offer Or

Open-market buys, 24 mo

$407K

4 lines

Open-market sales, 24 mo

$6.7M

16 lines

Companies

with Form 4 filings

Latest transaction

Sep 24, 2026

transaction date

Roles and reported holdings

SMWBSIMILARWEB LTD.
May 18, 2026 – Sep 24, 2026
Chief Executive Officer
Held directly3,930,481 sh as of Sep 24, 2026 · Form 4
24 months: $407K bought · $6.7M sold

Transaction history

All 28 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

Date	Company	Type	Shares	Price	Value	Owned after	Filing
Sep 24, 2026	SMWBChief Executive Officer	Open-market saleCode S · direct	400	$8.37	$3K@ $8.37	3,930,481	Form 4
Sep 24, 2026	SMWBChief Executive Officer	Open-market saleCode S · direct	113,900	$7.69	$876K@ $7.69	3,930,881	Form 4
Sep 23, 2026	SMWBChief Executive Officer	Open-market saleCode S · direct	28,400	$8.54	$242K@ $8.54	4,044,781	Form 4
Sep 22, 2026	SMWBChief Executive Officer	Open-market saleCode S · direct	34,500	$8.38	$289K@ $8.38	4,073,181	Form 4
Sep 21, 2026	SMWBChief Executive Officer	Open-market saleCode S · direct	32,200	$8.40	$271K@ $8.40	4,107,681	Form 4
Sep 18, 2026	SMWBChief Executive Officer	Open-market saleCode S · direct	37,500	$8.25	$309K@ $8.25	4,139,881	Form 4
Sep 17, 2026	SMWBChief Executive Officer	Open-market saleCode S · direct	30,400	$8.35	$254K@ $8.35	4,177,381	Form 4
Sep 16, 2026	SMWBChief Executive Officer	Open-market saleCode S · direct	45,719	$8.40	$384K@ $8.40	4,207,781	Form 4
Sep 15, 2026	SMWBChief Executive Officer	Open-market saleCode S · direct	26,691	$8.53	$228K@ $8.53	4,253,500	Form 4
Sep 14, 2026	SMWBChief Executive Officer	Open-market saleCode S · direct	52,900	$8.54	$452K@ $8.54	4,280,191	Form 4
Sep 11, 2026	SMWBChief Executive Officer	Open-market saleCode S · direct	59,000	$8.05	$475K@ $8.05	4,333,091	Form 4
Sep 10, 2026	SMWBChief Executive Officer	Open-market saleCode S · direct	59,200	$8.06	$477K@ $8.06	4,392,091	Form 4
Sep 9, 2026	SMWBChief Executive Officer	Open-market saleCode S · direct	86,300	$8.06	$695K@ $8.06	4,451,291	Form 4
Sep 8, 2026	SMWBChief Executive Officer	Open-market saleCode S · direct	60,700	$8.33	$506K@ $8.33	4,537,591	Form 4
Aug 26, 2026	SMWBChief Executive Officer	Option exerciseCode M · direct	140,008	$3.04	$426K@ $3.04	4,738,299	Form 4
Aug 26, 2026	SMWBChief Executive Officer	Option exerciseCode M · direct	39,000	$0.4000	$16K@ $0.4000	4,637,291	Form 4
Aug 26, 2026	SMWBChief Executive Officer	Option exerciseCode M · direct	39,302	$2.71	$107K@ $2.71	4,637,593	Form 4
Aug 26, 2026	SMWBChief Executive Officer	Option exerciseCode M · direct	164,817	$2.71	$447K@ $2.71	4,763,108	Form 4
Aug 14, 2026	SMWBChief Executive Officer	Option exerciseCode M · direct	75,000	$0.4000	$30K@ $0.4000	4,673,291	Form 4
Aug 14, 2026	SMWBChief Executive Officer	Option exerciseCode M · direct	59,992	$3.04	$182K@ $3.04	4,658,283	Form 4
Aug 13, 2026	SMWBChief Executive Officer	Open-market saleCode S · direct	40,000	$8.90	$356K@ $8.90	4,598,291	Form 4
Aug 13, 2026	SMWBChief Executive Officer	Open-market saleCode S · direct	106,105	$8.75	$928K@ $8.75	4,638,291	Form 4
Aug 13, 2026	SMWBChief Executive Officer	Option exerciseCode M · direct	200,000	$0.4000	$80K@ $0.4000	4,944,396	Form 4
Aug 13, 2026	SMWBChief Executive Officer	Option exerciseCode M · direct	228,500	$3.04	$695K@ $3.04	4,972,896	Form 4
Jun 1, 2026	SMWBChief Executive Officer	Open-market purchaseCode P · direct	50,000	$4.15	$208K@ $4.15	4,744,396	Form 4
May 19, 2026	SMWBChief Executive Officer	Open-market purchaseCode P · direct	3,000	$3.55	$11K@ $3.55	4,694,396	Form 4
May 19, 2026	SMWBChief Executive Officer	Open-market purchaseCode P · direct	50,000	$3.58	$179K@ $3.58	4,691,396	Form 4
May 18, 2026	SMWBChief Executive Officer	Open-market purchaseCode P · direct	3,105	$3.20	$10K@ $3.20	4,641,396	Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.