SMWB / Similarweb Ltd. - Depositi SEC, Relazione annuale, dichiarazione di delega

Similarweb announces planned CFO departure after 10 years of service

Similarweb announces planned CFO departure after 10 years of service TEL AVIV, Israel-(September 2, 2025)- Similarweb Ltd.

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2025 Commission File Number: 001-40394 Si

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2025 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant’s name into English) 33 Yitzhak Rabin Rd., Givatayim 5348303, Israel (Address of principal executive offices)

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2025 Commission File Number: 001-40394 Simil

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2025 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant’s name into English) 33 Yitzhak Rabin Rd. Givatayim 5348303, Israel (Address of principal executive offices) Ind

Similarweb Names Tamar Rapaport-Dagim to its Board of Directors

Exhibit 99.1 Similarweb Names Tamar Rapaport-Dagim to its Board of Directors TEL AVIV, Israel (August 28, 2025) — Similarweb, a leading digital market intelligence company, welcomed Tamar Rapaport-Dagim to its Board of Directors today, following her election with overwhelming support at Similarweb’s annual general meeting of shareholders. Tamar Rapaport-Dagim is Chief Financial Officer and Chief O

SIMILARWEB ANNOUNCES SECOND QUARTER 2025 RESULTS Revenue growth of 17% in the second quarter Positive non-GAAP operating profit and free cash flow Customer base increased by 18%

Exhibit 99.1 SIMILARWEB ANNOUNCES SECOND QUARTER 2025 RESULTS Revenue growth of 17% in the second quarter Positive non-GAAP operating profit and free cash flow Customer base increased by 18% TEL AVIV, ISRAEL - August 12, 2025 - Similarweb Ltd. (NYSE: SMWB) ("Similarweb" or the "Company"), a leading digital data and analytics company powering critical business decisions, today announced financial r

Exhibit 99.2 Dear Shareholders, We delivered strong results in the second quarter of 2025, and we continue to be excited about the opportunities the AI revolution presents to Similarweb. Our second quarter results reflect the value of our comprehensi

q22025smwbshareholderlet Exhibit 99.2 Dear Shareholders, We delivered strong results in the second quarter of 2025, and we continue to be excited about the opportunities the AI revolution presents to Similarweb. Our second quarter results reflect the value of our comprehensive and proprietary Digital Data which is trusted by thousands of customers to generate actionable insights that empower them

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2025 Commission File Number: 001-40394 Simil

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2025 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant’s name into English) 33 Yitzhak Rabin Rd., Givatayim 5348303, Israel (Address of principal executive offices) In

Similarweb Ltd. 33 Yitzhak Rabin St. Givatayim, 5348303, Israel

Exhibit 99.1 Similarweb Ltd. 33 Yitzhak Rabin St. Givatayim, 5348303, Israel Dear Similarweb Ltd. Shareholders: We cordially invite you to attend the Annual General Meeting of Shareholders (the “Meeting”) of Similarweb Ltd. ( the “Company”), to be held on August 28, 2025 at 4:00 p.m. (Israel time), at our headquarters at 33 Yitzhak Rabin St., Givatayim, 5348303, Israel. The Company’s Notice of Ann

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2025 Commission File Number: 001-40394 Similar

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2025 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant’s name into English) 33 Yitzhak Rabin Rd., Givatayim 5348303, Israel (Address of principal executive offices) Indi

Signature [PLEASE SIGN WITHIN BOX] Date Signature (Joint Owners) Date TO VOTE, MARK BLOCKS BELOW IN BLUE OR BLACK INK AS FOLLOWS: KEEP THIS PORTION FOR YOUR RECORDS DETACH AND RETURN THIS PORTION ONLYTHIS PROXY CARD IS VALID ONLY WHEN SIGNED AND DATE

agm2025proxy-exhibit992 Signature [PLEASE SIGN WITHIN BOX] Date Signature (Joint Owners) Date TO VOTE, MARK BLOCKS BELOW IN BLUE OR BLACK INK AS FOLLOWS: KEEP THIS PORTION FOR YOUR RECORDS DETACH AND RETURN THIS PORTION ONLYTHIS PROXY CARD IS VALID ONLY WHEN SIGNED AND DATED.

Exhibit 99.2 Dear Shareholders, We delivered solid results in the first quarter of 2025, and are excited about the opportunities the AI revolution presents to Similarweb. Revenue growth and cash generation were better than expected in the first quart

Exhibit 99.2 Dear Shareholders, We delivered solid results in the first quarter of 2025, and are excited about the opportunities the AI revolution presents to Similarweb. Revenue growth and cash generation were better than expected in the first quarter and reflect the value of our comprehensive and proprietary Digital Data that is trusted by thousands of customers to generate actionable insights t

SIMILARWEB ANNOUNCES FIRST QUARTER 2025 RESULTS Revenue growth of 14% in the first quarter compared to 12% in Q1 2024 Sixth consecutive quarter of positive free cash flow Customer base increased by 19%

Exhibit 99.1 SIMILARWEB ANNOUNCES FIRST QUARTER 2025 RESULTS Revenue growth of 14% in the first quarter compared to 12% in Q1 2024 Sixth consecutive quarter of positive free cash flow Customer base increased by 19% TEL AVIV, ISRAEL - May 13, 2025 - Similarweb Ltd. (NYSE: SMWB) ("Similarweb" or the "Company"), a leading digital data and analytics company powering critical business decisions, today

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2025 Commission File Number: 001-40394 Similarw

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2025 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant’s name into English) 33 Yitzhak Rabin Rd., Givatayim 5348303, Israel (Address of principal executive offices) Indic

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit 15.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in the following Registration Statements: 1.Registration Statement (Form F-3 No. 333-279295) of Similarweb Ltd., and 2.Registration Statements (Form S-8 Nos. 333-256324, 333-264307, 333-270793 and 333-277449) pertaining to the 2012 Incentive Option Plan, 2021 Share Incentive Plan and

As filed with the United States Securities and Exchange Commission on February 27, 2025

As filed with the United States Securities and Exchange Commission on February 27, 2025 Registration No.

EXECUTION VERSION SECOND AMENDMENT TO LOAN AND SECURITY AGREEMENT This Second Amendment to Loan and Security Agreement (this “Amendment”) is entered into and effective this 6th day of August, 2024 (“Second Amendment Effective Date”), by and among Sil

EXECUTION VERSION SECOND AMENDMENT TO LOAN AND SECURITY AGREEMENT This Second Amendment to Loan and Security Agreement (this “Amendment”) is entered into and effective this 6th day of August, 2024 (“Second Amendment Effective Date”), by and among Silicon Valley Bank, a division of First-Citizens Bank & Trust Company (“Bank”), SIMILARWEB LTD, a company organized under the laws of the State of Israel (“ISR Borrower”), SIMILARWEB UK LIMITED, a limited liability company incorporated under the laws of England and Wales with company number 08634777 and its registered address at 145 City Road, Hoxton, London, United Kingdom, EC1V 1AZ, (“UK Borrower”), and SIMILARWEB, INC.

CERTIFICATION OF THE CHIEF FINANCIAL OFFICER PURSUANT TO 18 U.S.C. § 1350 AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 13.2 CERTIFICATION OF THE CHIEF FINANCIAL OFFICER PURSUANT TO 18 U.S.C. § 1350 AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 I, Jason Schwartz, Chief Financial Officer of Similarweb Ltd. (the “Company”), certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge: 1 The Annual Report of the Compan

CALCULATION OF FEE TABLE FORM S-8 (Form Type) Similarweb Ltd. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered (1) Proposed Maximum O

Exhibit 107 CALCULATION OF FEE TABLE FORM S-8 (Form Type) Similarweb Ltd. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered (1) Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Ordinary shares, par value NIS 0.01 per

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F (Mark One) ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F (Mark One) ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934   For the fiscal year ended December 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SE

CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO 18 U.S.C. § 1350 AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 13.1 CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO 18 U.S.C. § 1350 AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 I, Or Offer, Chief Executive Officer of Similarweb Ltd. (the “Company”), certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge: 1 The Annual Report of the Company on F

CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO RULE 13a-14(a) AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 12.1 CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO RULE 13a-14(a) AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Or Offer, certify that: 1 I have reviewed this annual report on Form 20-F of Similarweb Ltd. (the “Company”); 2 Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necess

Exhibit 2.1 DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED As of December 31, 2024, Similarweb Ltd. had one class of securities registered under Section 12 of the Exchan

Exhibit 2.1 DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED As of December 31, 2024, Similarweb Ltd. had one class of securities registered under Section 12 of the Exchange Act: ordinary shares par value NIS 0.01 per ordinary share. Share capital Our authorized share capital consists of 500,000,000 ordinary shares par

SIMILARWEB LTD. INSIDER TRADING COMPLIANCE POLICY CONTENTS Page I. SUMMARY .........................................................................................................................1 II. STATEMENT OF POLICIES PROHIBITING INSIDER TRADIN

SIMILARWEB LTD. INSIDER TRADING COMPLIANCE POLICY CONTENTS Page I. SUMMARY .........................................................................................................................1 II. STATEMENT OF POLICIES PROHIBITING INSIDER TRADING ...............................1 III. EXPLANATION OF INSIDER TRADING .......................................................................2 IV. ST

CERTIFICATION OF THE CHIEF FINANCIAL OFFICER PURSUANT TO RULE 13a-14(a) AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 12.2 CERTIFICATION OF THE CHIEF FINANCIAL OFFICER PURSUANT TO RULE 13a-14(a) AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Jason Schwartz, certify that: 1 I have reviewed this annual report on Form 20-F of Similarweb Ltd. (the “Company”); 2 Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2025 Commission File Number: 001-40394 Sim

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2025 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant’s name into English) 33 Yitzhak Rabin Rd., Givatayim 5348303, Israel (Address of principal executive offices)

Exhibit 99.2 Dear Shareholders, We are very proud of the profitable growth that we delivered in 2024 and we are excited about the opportunities that the AI revolution presents to Similarweb. Total revenue in 2024 increased by 15% (YoY) accelerating f

Exhibit 99.2 Dear Shareholders, We are very proud of the profitable growth that we delivered in 2024 and we are excited about the opportunities that the AI revolution presents to Similarweb. Total revenue in 2024 increased by 15% (YoY) accelerating from 13% in 2023, reflecting the strong demand for our Digital Data. Our customer base increased by 17% YoY to 5,534 ARR customers and our remaining pe

SIMILARWEB ANNOUNCES FOURTH QUARTER AND FISCAL YEAR 2024 RESULTS Revenue growth accelerated to 15% in 2024 from 13% in 2023 First full year of positive non-GAAP operating profit and free cash flow

Exhibit 99.1 SIMILARWEB ANNOUNCES FOURTH QUARTER AND FISCAL YEAR 2024 RESULTS Revenue growth accelerated to 15% in 2024 from 13% in 2023 First full year of positive non-GAAP operating profit and free cash flow TEL AVIV, ISRAEL - February 11, 2025 - Similarweb Ltd. (NYSE: SMWB) ("Similarweb" or the "Company"), a leading digital data and analytics company powering critical business decisions, today

SMWB / Similarweb Ltd. / ION Crossover Partners Ltd - SC 13G/A Passive Investment

SC 13G/A 1 zk2432398.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* Similarweb LTD (Name of Issuer) Ordinary Shares, par value 0.01 NIS per share (Title of Class of Securities) M84137 10 4 (CUSIP Number) Mr. Anthony Reich, 13th Floor, Building E, 89 Medinat Hayehudim Street, Herzliya, Is

SIMILARWEB ANNOUNCES THIRD QUARTER 2024 RESULTS Fourth consecutive quarter of accelerating revenue growth Fourth consecutive quarter of positive free cash flow Customer base increased by 21%

Exhibit 99.1 SIMILARWEB ANNOUNCES THIRD QUARTER 2024 RESULTS Fourth consecutive quarter of accelerating revenue growth Fourth consecutive quarter of positive free cash flow Customer base increased by 21% TEL AVIV, ISRAEL - November 12, 2024 - Similarweb Ltd. (NYSE: SMWB) ("Similarweb" or the "Company"), a leading digital data and analytics company powering critical business decisions, today announ

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2024 Commission File Number: 001-40394 Sim

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2024 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant’s name into English) 33 Yitzhak Rabin Rd., Givatayim 5348303, Israel (Address of principal executive offices)

Exhibit 99.2 Dear Shareholders, In the third quarter of 2024 (Q3-24), revenue growth continued to accelerate and we delivered a fourth consecutive quarter of positive free cash flow. Our customer base increased by 21% YoY and our remaining performanc

Exhibit 99.2 Dear Shareholders, In the third quarter of 2024 (Q3-24), revenue growth continued to accelerate and we delivered a fourth consecutive quarter of positive free cash flow. Our customer base increased by 21% YoY and our remaining performance obligations (RPO) increased by 27% YoY, faster than revenue growth. Our overall dollar-based net retention rate (NRR) increased to 101% and NRR for

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2024 Commission File Number: 001-40394 Si

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2024 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant’s name into English) 33 Yitzhak Rabin Rd. Givatayim 5348303, Israel (Address of principal executive offices)

SIMILARWEB LTD. ANNOUNCES FULL EXERCISE OF THE UNDERWRITERS’ OPTION TO PURCHASE ADDITIONAL ORDINARY SHARES

Exhibit 99.1 SIMILARWEB LTD. ANNOUNCES FULL EXERCISE OF THE UNDERWRITERS’ OPTION TO PURCHASE ADDITIONAL ORDINARY SHARES TEL AVIV, Israel – September 18, 2024 — Similarweb Ltd. (“Similarweb”) (NYSE: SMWB), a leading digital market intelligence company, today announced that in connection with the previously announced underwritten public offering by a selling shareholder (the “Offering”), the underwr

SIMILARWEB LTD. ANNOUNCES CLOSING OF SECONDARY OFFERING BY A SELLING SHAREHOLDER

Exhibit 99.1 SIMILARWEB LTD. ANNOUNCES CLOSING OF SECONDARY OFFERING BY A SELLING SHAREHOLDER TEL AVIV, Israel – September 16, 2024 — Similarweb Ltd. (“Similarweb”) (NYSE: SMWB), a leading digital market intelligence company, today announced the closing of a previously announced underwritten public offering by a selling shareholder (the “Offering”) of 3,500,000 ordinary shares of the Company at a

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2024 Commission File Number: 001-40394 Si

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2024 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant’s name into English) 33 Yitzhak Rabin Rd. Givatayim 5348303, Israel (Address of principal executive offices)

Execution Version UNDERWRITING AGREEMENT SIMILARWEB LTD. 3,500,000 Ordinary Shares September 12, 2024 Goldman Sachs & Co. LLC As Representative of the several Underwriters listed in Schedule 1 hereto 200 West Street, New York, New York 10282 Ladies a

Execution Version UNDERWRITING AGREEMENT SIMILARWEB LTD. 3,500,000 Ordinary Shares September 12, 2024 Goldman Sachs & Co. LLC As Representative of the several Underwriters listed in Schedule 1 hereto 200 West Street, New York, New York 10282 Ladies and Gentlemen: The shareholders of Similarweb Ltd., a company organized under the laws of the State of Israel (the “Company”) named in Schedule 2 heret

Similarweb Ltd. 3,500,000 Ordinary Shares

Filed Pursuant to Rule 424(b)(3) Registration No. 333-279295 PROSPECTUS SUPPLEMENT (To Prospectus dated May 31, 2024) Similarweb Ltd. 3,500,000 Ordinary Shares The selling shareholder identified in this prospectus supplement is offering 3,500,000 ordinary shares par value NIS 0.01 per ordinary share (“Ordinary Shares”) in this offering (the “Shares”). We will not receive any of the proceeds from t

SIMILARWEB LTD. ANNOUNCES LAUNCH OF SECONDARY OFFERING BY A SELLING SHAREHOLDER

Exhibit 99.1 SIMILARWEB LTD. ANNOUNCES LAUNCH OF SECONDARY OFFERING BY A SELLING SHAREHOLDER TEL AVIV, Israel – September 12, 2024 — Similarweb Ltd. (“Similarweb”) (NYSE: SMWB), a leading digital market intelligence company, today announced the launch of an underwritten public offering by a selling shareholder (the “Offering”) of 3,500,000 ordinary shares of the Company. The selling shareholder in

SIMILARWEB LTD. ANNOUNCES PRICING OF SECONDARY OFFERING BY A SELLING SHAREHOLDER

Exhibit 99.2 SIMILARWEB LTD. ANNOUNCES PRICING OF SECONDARY OFFERING BY A SELLING SHAREHOLDER TEL AVIV, Israel – September 13, 2024 — Similarweb Ltd. (“Similarweb”) (NYSE: SMWB), a leading digital market intelligence company, today announced the pricing of an underwritten public offering by a selling shareholder (the “Offering”) of 3,500,000 ordinary shares of the Company at a public offering pric

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2024 Commission File Number: 001-40394 Si

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2024 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant’s name into English) 33 Yitzhak Rabin Rd. Givatayim 5348303, Israel (Address of principal executive offices)

Subject to completion, dated September 12, 2024

The information in this preliminary prospectus supplement is not complete and may be changed.

Similarweb Welcomes Lisa Campbell and Barak Eilam to its Board of Directors

Exhibit 99.1 Similarweb Welcomes Lisa Campbell and Barak Eilam to its Board of Directors TEL AVIV, Israel – [September 5, 2024] – Similarweb Ltd. (NYSE: SMWB), a leading digital market intelligence company, is pleased to announce the appointment of Lisa Campbell and Barak Eilam to its Board of Directors, with overwhelming support at the general meeting of shareholders earlier today. Their extensiv

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2024 Commission File Number: 001-40394 Si

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2024 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant’s name into English) 33 Yitzhak Rabin Rd. Givatayim 5348303, Israel (Address of principal executive offices)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO SECTION 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2024 Commission File Number: 001-

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO SECTION 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2024 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant’s name into English) 33 Yitzhak Rabin St., Givatayim, 5348303, Israel (Address of principal executive

Similarweb Appoints Hubspot CMO Kipp Bodnar to Board of Directors

Exhibit 99.1 Similarweb Appoints Hubspot CMO Kipp Bodnar to Board of Directors TEL AVIV, Israel – August 14, 2024 – Similarweb Ltd. (NYSE: SMWB), a leading digital market intelligence company, is proud to announce the appointment of Kipp Bodnar to its Board of Directors, effective September 5, 2024. Bodnar, currently Chief Marketing Officer at HubSpot (NYSE: HUBS), brings a wealth of experience in

Exhibit 99.2 Dear Shareholders, Three years after our IPO, we are proud that Similarweb is a growing, profitable and cash generating company. In the second quarter of 2024 (Q2-24), revenue growth continued to accelerate and we delivered another recor

Exhibit 99.2 Dear Shareholders, Three years after our IPO, we are proud that Similarweb is a growing, profitable and cash generating company. In the second quarter of 2024 (Q2-24), revenue growth continued to accelerate and we delivered another record non-GAAP operating margin, representing a fourth consecutive quarter of operating profit. Our base of annual recurring revenue customers continued t

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2024 Commission File Number: 001-40394 Simil

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2024 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant’s name into English) 33 Yitzhak Rabin Rd., Givatayim 5348303, Israel (Address of principal executive offices) In

SIMILARWEB ANNOUNCES SECOND QUARTER 2024 RESULTS Revenue growth accelerated for the third consecutive quarter Fourth consecutive quarter of non-GAAP operating profit Raising guidance for 2024 revenue and non-GAAP operating profit

Exhibit 99.1 SIMILARWEB ANNOUNCES SECOND QUARTER 2024 RESULTS Revenue growth accelerated for the third consecutive quarter Fourth consecutive quarter of non-GAAP operating profit Raising guidance for 2024 revenue and non-GAAP operating profit TEL AVIV, ISRAEL - Aug 6, 2024 - Similarweb Ltd. (NYSE: SMWB) ("Similarweb" or the "Company"), a leading digital data and analytics company powering critical

Signature [PLEASE SIGN WITHIN BOX] Date Signature (Joint Owners) Date TO VOTE, MARK BLOCKS BELOW IN BLUE OR BLACK INK AS FOLLOWS: KEEP THIS PORTION FOR YOUR RECORDS DETACH AND RETURN THIS PORTION ONLYTHIS PROXY CARD IS VALID ONLY WHEN SIGNED AND DATE

Signature [PLEASE SIGN WITHIN BOX] Date Signature (Joint Owners) Date TO VOTE, MARK BLOCKS BELOW IN BLUE OR BLACK INK AS FOLLOWS: KEEP THIS PORTION FOR YOUR RECORDS DETACH AND RETURN THIS PORTION ONLYTHIS PROXY CARD IS VALID ONLY WHEN SIGNED AND DATED.

Similarweb Ltd. 33 Yitzhak Rabin St. Givatayim, 5348303, Israel

Exhibit 99.1 Similarweb Ltd. 33 Yitzhak Rabin St. Givatayim, 5348303, Israel Dear Similarweb Ltd. Shareholders: We cordially invite you to attend the Annual General Meeting of Shareholders (the “Meeting”) of Similarweb Ltd. ( the “Company”), to be held on September 5, 2024 at 4:00 p.m. (Israel time), at our headquarters at 33 Yitzhak Rabin St., Givatayim, 5348303, Israel. The Company’s Notice of A

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2024 Commission File Number: 001-40394 Simil

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2024 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant’s name into English) 33 Yitzhak Rabin Rd., Givatayim 5348303, Israel (Address of principal executive offices) In

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO SECTION 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2024 Commission File Number: 001-40

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO SECTION 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2024 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant’s name into English) 33 Yitzhak Rabin St., Givatayim, 5348303, Israel (Address of principal executive o

Similarweb Announces Acquisition of 42matters, Strengthening Leadership in App Intelligence

Similarweb Announces Acquisition of 42matters, Strengthening Leadership in App Intelligence TEL AVIV, Israel, July 1, 2024 – Similarweb Ltd.

Similarweb Ltd. 33 Yitzhak Rabin Rd. Givatayim 5348303, Israel May 29, 2024

Similarweb Ltd. 33 Yitzhak Rabin Rd. Givatayim 5348303, Israel May 29, 2024 VIA EDGAR Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 Attention: Matthew Crispino Re: Similarweb Ltd. Registration Statement on Form F-3 File No. 333-279295 Ladies and Gentlemen: Pursuant to Rule 461 under the Securities Act of 1933, as amended, Similarweb Lt

Calculation of Filing Fee Tables FORM F-3 (Form Type) Similarweb Ltd. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities

Exhibit 107 Calculation of Filing Fee Tables FORM F-3 (Form Type) Similarweb Ltd. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit(1) Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Newl

SIMILARWEB LTD., Issuer AND [TRUSTEE], Trustee INDENTURE Dated as of [·], 20__ Debt Securities Table Of Contents

Exhibit 4.1 SIMILARWEB LTD., Issuer AND [TRUSTEE], Trustee INDENTURE Dated as of [·], 20 Debt Securities Table Of Contents Page ARTICLE 1 DEFINITIONS 1 Section 1.01 Definitions of Terms 1 ARTICLE 2 ISSUE, DESCRIPTION, TERMS, EXECUTION, REGISTRATION AND EXCHANGE OF SECURITIES 5 Section 2.01 Designation and Terms of Securities 5 Section 2.02 Form of Securities and Trustee’s Certificate 8 Section 2.0

As filed with the Securities and Exchange Commission on May 10, 2024

As filed with the Securities and Exchange Commission on May 10, 2024 Registration No.

SIMILARWEB ANNOUNCES FIRST QUARTER 2024 RESULTS Sustained momentum in both top line and bottom line performance Delivering consecutive quarters of positive free cash flow and non-GAAP operating profit

Exhibit 99.1 SIMILARWEB ANNOUNCES FIRST QUARTER 2024 RESULTS Sustained momentum in both top line and bottom line performance Delivering consecutive quarters of positive free cash flow and non-GAAP operating profit TEL AVIV, ISRAEL - May 7, 2024 - Similarweb Ltd. (NYSE: SMWB) ("Similarweb" or the "Company"), a leading digital data and analytics company powering critical business decisions, today an

Exhibit 99.2 Dear Shareholders, We kicked off 2024 with continued momentum in both top line and bottom line performance and delivered strong first quarter 2024 results. We are proud of generating $9.7 million of free cash flow in the quarter, the sec

Exhibit 99.2 Dear Shareholders, We kicked off 2024 with continued momentum in both top line and bottom line performance and delivered strong first quarter 2024 results. We are proud of generating $9.7 million of free cash flow in the quarter, the second consecutive quarter of positive free cash flow, and the third consecutive quarter of non-GAAP operating profit. Our focus on disciplined execution

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2024 Commission File Number: 001-40394 Similarw

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2024 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant’s name into English) 33 Yitzhak Rabin Rd., Givatayim 5348303, Israel (Address of principal executive offices) Indic

Similarweb Acquires Admetricks to Expand Ad Intelligence Offering

Exhibit 99.1 Similarweb Acquires Admetricks to Expand Ad Intelligence Offering Designed to assist in the optimization of advertising campaigns across platforms, Admetricks will help cement Similarweb as the comprehensive solution for Advertising Intelligence. Tel Aviv, Israel & New York (March 4, 2024) — Similarweb (NYSE: SMWB) announced today the acquisition of Admetricks, the creator of powerful

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO SECTION 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2024 Commission File Number: 001-4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO SECTION 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2024 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant’s name into English) 33 Yitzhak Rabin St., Givatayim, 5348303, Israel (Address of principal executive

CALCULATION OF FEE TABLE FORM S-8 (Form Type) Similarweb Ltd. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered (1) Proposed Maximum O

Exhibit 107 CALCULATION OF FEE TABLE FORM S-8 (Form Type) Similarweb Ltd. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered (1) Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Ordinary shares, par value NIS 0.01 per

CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO RULE 13a-14(a) AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 12.1 CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO RULE 13a-14(a) AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Or Offer, certify that: 1 I have reviewed this annual report on Form 20-F of Similarweb Ltd. (the “Company”); 2 Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necess

CERTIFICATION OF THE CHIEF FINANCIAL OFFICER PURSUANT TO 18 U.S.C. § 1350 AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 13.2 CERTIFICATION OF THE CHIEF FINANCIAL OFFICER PURSUANT TO 18 U.S.C. § 1350 AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 I, Jason Schwartz, Chief Financial Officer of Similarweb Ltd. (the “Company”), certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge: 1 The Annual Report of the Compan

CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO 18 U.S.C. § 1350 AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 13.1 CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO 18 U.S.C. § 1350 AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 I, Or Offer, Chief Executive Officer of Similarweb Ltd. (the “Company”), certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge: 1 The Annual Report of the Company on F

CERTIFICATION OF THE CHIEF FINANCIAL OFFICER PURSUANT TO RULE 13a-14(a) AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 12.2 CERTIFICATION OF THE CHIEF FINANCIAL OFFICER PURSUANT TO RULE 13a-14(a) AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Jason Schwartz, certify that: 1 I have reviewed this annual report on Form 20-F of Similarweb Ltd. (the “Company”); 2 Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F (Mark One) ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F (Mark One) ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934   For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SE

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Exhibit 15.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in the Registration Statements (Form S-8 Nos. 333-256324, 333-264307 and 333-270793) pertaining to the 2021 Share Incentive Plan and 2021 Employee Share Purchase Plan of Similarweb Ltd., of our report dated February 28, 2024, with respect to the consolidated financial statements of Si

As filed with the United States Securities and Exchange Commission on February 28, 2024

As filed with the United States Securities and Exchange Commission on February 28, 2024 Registration No.

SIMILARWEB LTD. POLICY FOR RECOVERY OF ERRONEOUSLY AWARDED COMPENSATION

Exhibit 97.1 SIMILARWEB LTD. POLICY FOR RECOVERY OF ERRONEOUSLY AWARDED COMPENSATION Similarweb Ltd. (the “Company”) has adopted this Policy for Recovery of Erroneously Awarded Compensation (the “Policy”), effective as of November 6, 2023 (the “Effective Date”). Capitalized terms used in this Policy but not otherwise defined herein are defined in Section 11. 1.Persons Subject to Policy This Policy

SMWB / Similarweb Ltd. / Phoenix Holdings Ltd. - SC 13G/A Passive Investment

SC 13G/A 1 zk2431022.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 2*) SIMILARWEB LTD. (Name of Issuer) Ordinary Shares (Title of Class of Securities) M84137104 (CUSIP Number) February 15, 2024 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate th

SMWB / Similarweb Ltd. / Offer Or Passive Investment

SC 13G/A 1 formsc13ga.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G/A UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 2)* SIMILARWEB LTD. (Name of Issuer) Ordinary Shares (Title and Class of Securities) M84137104 (CUSIP Number) December 31, 2023 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rul

SIMILARWEB ANNOUNCES FOURTH QUARTER AND FISCAL YEAR 2023 RESULTS Delivers positive free cash for the first time since IPO Non-GAAP operating profit margin of 8%

Exhibit 99.1 SIMILARWEB ANNOUNCES FOURTH QUARTER AND FISCAL YEAR 2023 RESULTS Delivers positive free cash for the first time since IPO Non-GAAP operating profit margin of 8% TEL AVIV, ISRAEL - February 13, 2024 - Similarweb Ltd. (NYSE: SMWB) ("Similarweb" or the "Company"), a leading digital data and analytics company powering critical business decisions, today announced financial results for its

Exhibit 99.2 Dear Shareholders, We finished 2023 with excellent results. As a result of our focus on disciplined execution, we delivered an improvement of 30 percentage points year-over-year (YoY) in non-GAAP operating margin, which resulted in recor

Exhibit 99.2 Dear Shareholders, We finished 2023 with excellent results. As a result of our focus on disciplined execution, we delivered an improvement of 30 percentage points year-over-year (YoY) in non-GAAP operating margin, which resulted in record non-GAAP operating profit for the second consecutive quarter. This in turn led to us accomplishing our goal to generate positive free cash flow in t

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2024 Commission File Number: 001-40394 Sim

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2024 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant’s name into English) 33 Yitzhak Rabin Rd., Givatayim 5348303, Israel (Address of principal executive offices)

SMWB / Similarweb Ltd. / Phoenix Holdings Ltd. - SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 1*) SIMILARWEB LTD. (Name of Issuer) Ordinary Shares (Title of Class of Securities) M84137104 (CUSIP Number) December 31, 2023 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sche

SMWB / Similarweb Ltd. / Viola Growth Management Fund 2 Ltd. - AMENDMENT NO. 1 TO SCHEDULE 13G Passive Investment

SC 13G/A 1 ea193170-13ga1violasimilar.htm AMENDMENT NO. 1 TO SCHEDULE 13G SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G/A (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(b), (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2 (Amendment No. 1)* Similarweb Ltd. (Name of Issuer) Ordinary Shares, par value NIS 0.01 per share

[Unofficial Translation]

EX-99 2 exhibit1.htm EXHIBIT 1 Exhibit 1 [Unofficial Translation] December 12, 2019 Powers of Signature in The Phoenix Holdings Ltd. (hereinafter: the “Company”) In accordance with a resolution of the Board of Directors of the Company, the powers of signatures in the Company as of December 12, 2019, are as follows: General Rights of Signature 1. The signature of the Chairman of the Board of Direct

SMWB / Similarweb Ltd / Phoenix Holdings Ltd. - SC 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. *) SIMILARWEB LTD. (Name of Issuer) Ordinary Shares (Title of Class of Securities) M84137104 (CUSIP Number) November 21, 2023 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sched

Exhibit 99.2 Dear Shareholders, As a result of our focus on disciplined execution, we performed well during the third quarter of 2023 (Q3-23). We achieved new records in revenue, gross profit and gross margin, despite headwinds we experienced related

Exhibit 99.2 Dear Shareholders, As a result of our focus on disciplined execution, we performed well during the third quarter of 2023 (Q3-23). We achieved new records in revenue, gross profit and gross margin, despite headwinds we experienced related to customers shifting their priorities towards profitability. Importantly, we delivered an improvement of 29 percentage points year-over-year (YoY) i

SIMILARWEB ANNOUNCES THIRD QUARTER 2023 RESULTS Achieved company record gross profit and gross margin Achieved Non-GAAP operating profit for the first time

Exhibit 99.1 SIMILARWEB ANNOUNCES THIRD QUARTER 2023 RESULTS Achieved company record gross profit and gross margin Achieved Non-GAAP operating profit for the first time TEL AVIV, ISRAEL - November 7, 2023 - Similarweb Ltd. (NYSE: SMWB) ("Similarweb" or the "Company"), a leading digital data and analytics company powering critical business decisions, today announced financial results for its third

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2023 Commission File Number: 001-40394 Sim

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2023 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant’s name into English) 33 Yitzhak Rabin Rd., Givatayim 5348303, Israel (Address of principal executive offices)

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2023 Commission File Number: 001-40394 Simil

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2023 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant’s name into English) 33 Yitzhak Rabin Rd., Givatayim 5348303, Israel (Address of principal executive offices) In

Exhibit 99.2 Dear Shareholders, Our dedication to disciplined execution continued to serve us well during the second quarter of 2023. We delivered an improvement of more than 35 percentage points year-over-year in non-GAAP operating margin. We remain

a6-kxex992xq22023smwbsha Exhibit 99.2 Dear Shareholders, Our dedication to disciplined execution continued to serve us well during the second quarter of 2023. We delivered an improvement of more than 35 percentage points year-over-year in non-GAAP operating margin. We remain on track to generate sustained positive free cash flow by the end of this year. During the quarter, 25 million unique visito

SIMILARWEB ANNOUNCES SECOND QUARTER 2023 RESULTS Non-GAAP operating margin improved by more than 35 percentage points

Exhibit 99.1 SIMILARWEB ANNOUNCES SECOND QUARTER 2023 RESULTS Non-GAAP operating margin improved by more than 35 percentage points TEL AVIV, ISRAEL - August 8, 2023 - Similarweb Ltd. (NYSE: SMWB) ("Similarweb" or the "Company"), a leading digital data and analytics company powering critical business decisions, today announced financial results for its second quarter ended June 30, 2023. The Compan

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2023 Commission File Number: 001-40394 Similar

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2023 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant’s name into English) 33 Yitzhak Rabin Rd. Givatayim 5348303, Israel (Address of principal executive offices) Indic

11 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 NAME THE COMPANY NAME INC. - COMMON 123,456,789,012.12345 THE COMPANY NAME INC. - CLASS A 123,456,789,012.12345 THE COMPANY NAME INC. - CLASS B 123,456,789,012.12345 THE COMPA

exhibit992-proxycardagm2 11 12345678 12345678 12345678 12345678 12345678 12345678 12345678 12345678 NAME THE COMPANY NAME INC.

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2023 Commission File Number: 001-40394 Similar

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2023 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant’s name into English) 33 Yitzhak Rabin Rd., Givatayim 5348303, Israel (Address of principal executive offices) Indi

Similarweb Ltd. 33 Yitzhak Rabin St. Givatayim, 5348303, Israel

Exhibit 99.1 Similarweb Ltd. 33 Yitzhak Rabin St. Givatayim, 5348303, Israel Dear Similarweb Ltd. Shareholders: We cordially invite you to attend the Annual General Meeting of Shareholders of Similarweb Ltd. (the “Meeting”), to be held on July 31, 2023 at 4:00 p.m. (Israel time), at our headquarters at 33 Yitzhak Rabin St., Givatayim, 5348303, Israel. The Company’s Notice of Annual General Meeting

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2023 Commission File Number: 001-40394 Similarw

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2023 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant’s name into English) 33 Yitzhak Rabin Rd., Givatayim 5348303, Israel (Address of principal executive offices) Indic

Exhibit 99.2 Dear Shareholders, We continued to navigate through the challenging macroeconomic environment during the first quarter of 2023. Our dedication to disciplined execution served us well delivering a 34 percentage point year-over-year improv

a6-kxex992xq12023smwbsha Exhibit 99.2 Dear Shareholders, We continued to navigate through the challenging macroeconomic environment during the first quarter of 2023. Our dedication to disciplined execution served us well delivering a 34 percentage point year-over-year improvement in GAAP operating margin and a 31 percentage point year-over-year improvement in non-GAAP operating margin. This exempl

SIMILARWEB ANNOUNCES FIRST QUARTER 2023 RESULTS First quarter 2023 revenue grew 19% year-over-year to $52.8 million Non-GAAP operating margin improved by 31 percentage points

Exhibit 99.1 SIMILARWEB ANNOUNCES FIRST QUARTER 2023 RESULTS First quarter 2023 revenue grew 19% year-over-year to $52.8 million Non-GAAP operating margin improved by 31 percentage points TEL AVIV, ISRAEL - May 9, 2023 - Similarweb Ltd. (NYSE: SMWB) ("Similarweb" or the "Company"), a leading digital data and analytics company powering critical business decisions, today announced financial results

Principal Executive Officer Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 13.1 CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO 18 U.S.C. § 1350 AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 I, Or Offer, Chief Executive Officer of Similarweb Ltd. (the “Company”), certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge: 1 The Annual Report of the Company on F

As filed with the United States Securities and Exchange Commission on March 23, 2023

As filed with the United States Securities and Exchange Commission on March 23, 2023 Registration No.

Consent of Kost, Forer, Gabbay & Kasierer, a member of Ernst & Young Global, an independent registered public accounting firm

Exhibit 15.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in the Registration Statements on Form S-8 (File No. 333-256324 and 333-264307) pertaining to the 2021 Share Incentive Plan and 2021 Employee Share Purchase Plan of Similarweb Ltd., of our report dated March 23, 2023, with respect to the consolidated financial statements of Similarweb

Principal Financial Officer Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 13.2 CERTIFICATION OF THE CHIEF FINANCIAL OFFICER PURSUANT TO 18 U.S.C. § 1350 AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 I, Jason Schwartz, Chief Financial Officer of Similarweb Ltd. (the “Company”), certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge: 1 The Annual Report of the Compan

Principal Executive Officer Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 12.1 CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO RULE 13a-14(a) AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Or Offer, certify that: 1 I have reviewed this annual report on Form 20-F of Similarweb Ltd. (the “Company”); 2 Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necess

, between Silicon Valley Bank, Similarweb Ltd., Similarweb UK Ltd. and Similarweb, Inc.

exhibit415-loanmodificat SimilarWeb – First LMA to LSA LOAN MODIFICATION AGREEMENT This Loan Modification Agreement (this “Loan Modification Agreement”) is entered into as of November 13, 2022 (the “LMA Effective Date”), by and among (a) SILICON VALLEY BANK, a California corporation, with its principal place of business at 3003 Tasman Drive, Santa Clara, California 95054, USA and with a loan produ

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F (Mark One) ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F (Mark One) ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934   For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SE

Filing Fee Calculation.

Exhibit 107 CALCULATION OF FEE TABLE FORM S-8 (Form Type) Similarweb Ltd. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered (1) Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Ordinary shares, par value NIS 0.01 per

Principal Financial Officer Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 12.2 CERTIFICATION OF THE CHIEF FINANCIAL OFFICER PURSUANT TO RULE 13a-14(a) AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Jason Schwartz, certify that: 1 I have reviewed this annual report on Form 20-F of Similarweb Ltd. (the “Company”); 2 Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2023 Commission File Number: 001-40394 Sim

6-K 1 a6-kcoverxq431122022.htm 6-K FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2023 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant’s name into English) 33 Yitzhak Rabin Rd., Givatayim 5348303, Israel (Addre

SIMILARWEB ANNOUNCES FOURTH QUARTER 2022 RESULTS Fourth quarter 2022 revenue grew 28% year-over-year to $51.3 million Non-GAAP operating margin improved by 25 percentage points Annual Recurring Revenue Exceeds $200 Million

Exhibit 99.1 SIMILARWEB ANNOUNCES FOURTH QUARTER 2022 RESULTS Fourth quarter 2022 revenue grew 28% year-over-year to $51.3 million Non-GAAP operating margin improved by 25 percentage points Annual Recurring Revenue Exceeds $200 Million TEL AVIV, ISRAEL - February 14, 2023 - Similarweb Ltd. (NYSE: SMWB) ("Similarweb" or the "Company"), a leading digital intelligence company, today announced financi

SMWB / Similarweb Ltd. / Offer Or Passive Investment

SC 13G/A 1 formsc13ga.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G/A UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 1)* SIMILARWEB LTD. (Name of Issuer) Ordinary Shares (Title and Class of Securities) M84137104 (CUSIP Number) December 31, 2022 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rul

Exhibit 99.2 Dear Shareholders, We navigated the challenges of 2022 well, especially those impacting our bottom line, which reflect our continued focus on disciplined execution. We finished 2022 positioned to achieve sustained positive free cash flow

a6-kxex992xq42022smwbsha Exhibit 99.2 Dear Shareholders, We navigated the challenges of 2022 well, especially those impacting our bottom line, which reflect our continued focus on disciplined execution. We finished 2022 positioned to achieve sustained positive free cash flow during 2023. Our unique digital data and its applications continue to be extremely powerful in the current environment. We c

SIMILARWEB ANNOUNCES STRONG THIRD QUARTER 2022 RESULTS Third quarter 2022 revenue grew 41% year-over-year to $50.0 million Non-GAAP operating margin improved by over 12 percentage points Remaining performance obligations increased 39% year-over-year

Exhibit 99.1 SIMILARWEB ANNOUNCES STRONG THIRD QUARTER 2022 RESULTS Third quarter 2022 revenue grew 41% year-over-year to $50.0 million Non-GAAP operating margin improved by over 12 percentage points Remaining performance obligations increased 39% year-over-year to $158.0 million TEL AVIV, ISRAEL - November 15, 2022 - Similarweb Ltd. (NYSE: SMWB) ("Similarweb" or the "Company"), a leading digital

Exhibit 99.2 Dear Shareholders, We delivered solid results in the third quarter of 2022, especially on the bottom line, in an increasingly volatile environment for businesses globally, reflecting our focus on disciplined execution. During the quarter

a6-kxex992xq32022smwbsha Exhibit 99.2 Dear Shareholders, We delivered solid results in the third quarter of 2022, especially on the bottom line, in an increasingly volatile environment for businesses globally, reflecting our focus on disciplined execution. During the quarter, we began to experience a broad-based change in the tone of our conversations with decision-makers at businesses around the

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2022 Commission File Number: 001-40394 Sim

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2022 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant’s name into English) 33 Yitzhak Rabin Rd., Givatayim 5348303, Israel (Address of principal executive offices)

Exhibit 99.2 1 Similarweb Q2 2022 Shareholder Letter Dear Shareholders, We performed well in the second quarter of 2022, crossing the midpoint of the year ahead of where we expected to be. We achieved excellent results during a challenging time for b

Exhibit 99.2 1 Similarweb Q2 2022 Shareholder Letter Dear Shareholders, We performed well in the second quarter of 2022, crossing the midpoint of the year ahead of where we expected to be. We achieved excellent results during a challenging time for businesses globally. Over this period, we have seen an increased interest for our products from decision-makers at many companies, which is key to driv

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2022 Commission File Number: 001-40394 Simil

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2022 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant?s name into English) 33 Yitzhak Rabin Rd., Givatayim 5348303, Israel (Address of principal executive offices) In

SIMILARWEB ANNOUNCES SECOND QUARTER 2022 RESULTS Second quarter 2022 revenue grew 46% year-over-year to $47.6 million NRR for $100K+ ARR customers remains strong at 127% Remaining performance obligations increased 53% year-over-year to $160.5 million

Exhibit 99.1 SIMILARWEB ANNOUNCES SECOND QUARTER 2022 RESULTS Second quarter 2022 revenue grew 46% year-over-year to $47.6 million NRR for $100K+ ARR customers remains strong at 127% Remaining performance obligations increased 53% year-over-year to $160.5 million TEL AVIV, ISRAEL - August 9, 2022 - Similarweb Ltd. (NYSE: SMWB) ("Similarweb" or the "Company"), a leading digital intelligence company

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2022 Commission File Number: 001-40394 Simil

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2022 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant?s name into English) 33 Yitzhak Rabin Rd. Givatayim 5348303, Israel (Address of principal executive offices) Ind

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2022 Commission File Number: 001-40394 Similar

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2022 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant?s name into English) 121 Menachem Begin Rd., Tel Aviv-Yafo 6701203, Israel (Address of principal executive offices

Exhibit 99.2 SCAN TO VIEW MATERIALS & VOTE SIMILARWEB LTD. 33 YITZHAK RABIN ST. GIVATAYIM, 5348303 ISRAEL VOTE BY INTERNET - www.proxyvote.com or scan the QR Barcode above Use the Internet to transmit your voting instructions and for electronic deliv

Exhibit 99.2 SCAN TO VIEW MATERIALS & VOTE SIMILARWEB LTD. 33 YITZHAK RABIN ST. GIVATAYIM, 5348303 ISRAEL VOTE BY INTERNET - www.proxyvote.com or scan the QR Barcode above Use the Internet to transmit your voting instructions and for electronic delivery of information up until 11:59 p.m. ET on July 31, 2022. Have your proxy card in hand when you access the web site and follow the instructions to o

Similarweb Ltd. 33 Yitzhak Rabin St. Givatayim, 5348303, Israel

Exhibit 99.1 Similarweb Ltd. 33 Yitzhak Rabin St. Givatayim, 5348303, Israel Dear Similarweb Ltd. Shareholders: We cordially invite you to attend the Annual General Meeting of Shareholders of Similarweb Ltd. (the ?Meeting?), to be held on August 1, 2022 at 4:00 p.m. (Israel time), at our headquarters at 33 Yitzhak Rabin St., Givatayim, 5348303, Israel. The Company?s Notice of Annual General Meetin

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2022 Commission File Number: 001-40394 Similarw

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2022 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant?s name into English) 121 Menachem Begin Rd., Tel Aviv-Yafo 6701203, Israel (Address of principal executive offices)

Dear Shareholders, Building off our excellent momentum and performance in 2021, we started this year strong and delivered very positive first quarter 2022 results. Our growth trended robustly in the first quarter of 2022. Revenue reached $44.3 millio

Dear Shareholders, Building off our excellent momentum and performance in 2021, we started this year strong and delivered very positive first quarter 2022 results.

SIMILARWEB ANNOUNCES RECORD FIRST QUARTER 2022 RESULTS First quarter 2022 revenue grew 51% year-over-year to $44.3 million NRR for $100K+ ARR customers increased to 127% Remaining performance obligations increased 68% year-over-year to $159.1 million

Exhibit 99.1 SIMILARWEB ANNOUNCES RECORD FIRST QUARTER 2022 RESULTS First quarter 2022 revenue grew 51% year-over-year to $44.3 million NRR for $100K+ ARR customers increased to 127% Remaining performance obligations increased 68% year-over-year to $159.1 million TEL AVIV, ISRAEL - May 10, 2022 - Similarweb Ltd. (NYSE: SMWB) ("Similarweb" or the "Company"), a leading digital intelligence company,

As filed with the United States Securities and Exchange Commission on April 15, 2022

As filed with the United States Securities and Exchange Commission on April 15, 2022 Registration No.

Filing Fee Calculation.

Exhibit 107 CALCULATION OF FEE TABLE FORM S-8 (Form Type) Similarweb Ltd. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered(1) Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Ordinary shares, par value NIS 0.01 per

Description of Securities

Exhibit 2.2 DESCRIPTION OF THE REGISTRANT?S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED As of December 31, 2021, Similarweb Ltd. had one class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended: our ordinary shares. References herein to ?we,? ?us,? ?our? and the ?Company? refer to Similarweb Ltd. and not

Principal Executive Officer Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 13.1 CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO 18 U.S.C. ? 1350 AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 I, Or Offer, Chief Executive Officer of Similarweb Ltd. (the ?Company?), certify, pursuant to 18 U.S.C. ? 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge: 1 The Annual Report of the Company on F

Consent of Kost, Forer, Gabbay & Kasierer, a member of Ernst & Young Global, an independent registered public accounting firm

EX-15.1 8 ex151-consentofindependent.htm EX-15.1 Exhibit 15.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in the Registration Statement (Form S-8 No. 333-256324) pertaining to the 2021 Share Incentive Plan, 2021 Employee Share Purchase Plan, and 2012 Incentive Option Plan SimilarWeb Ltd. of our report dated March 25, 2022, with respect to t

Lease Agreement, dated as of August 5, 2021 by and between the Registrant and Eilot Haskhaot (Ramat-Vered) 1994 Ltd. See Exhibit 14.4 for an English language summary of this lease agreement.

Exhibit 4.14 Summary of Hebrew Language Lease Agreement ? Yitzchak Rabin 33, Givatayim The following is a summary of the main terms and provisions as set forth in the lease agreement between Eilot Haskhaot (Ramat-Vered) 1994 Ltd. (the ?Lessor?) and Similarweb Ltd. (the ?Company?), dated August 5, 2021, (the ?Agreement?), which in its original form is in Hebrew. 1.The Lease Space: The space shall b

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F (Mark One) ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F (Mark One) ??REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ??ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934?? For the fiscal year ended December 31, 2021 OR ??TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SE

Principal Executive Officer Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 12.1 CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO RULE 13a-14(a) AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Or Offer, certify that: 1 I have reviewed this annual report on Form 20-F of Similarweb Ltd. (the “Company”); 2 Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necess

Principal Financial Officer Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 12.2 CERTIFICATION OF THE CHIEF FINANCIAL OFFICER PURSUANT TO RULE 13a-14(a) AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Jason Schwartz, certify that: 1 I have reviewed this annual report on Form 20-F of Similarweb Ltd. (the “Company”); 2 Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact

Principal Financial Officer Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 13.2 CERTIFICATION OF THE CHIEF FINANCIAL OFFICER PURSUANT TO 18 U.S.C. ? 1350 AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 I, Jason Schwartz, Chief Financial Officer of Similarweb Ltd. (the ?Company?), certify, pursuant to 18 U.S.C. ? 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge: 1 The Annual Report of the Compan

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO SECTION 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2022 Commission File Number: 00

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO SECTION 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2022 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant?s name into English) 121 Menachem Begin Rd., Tel Aviv-Yafo 6701203, Israel (Address of principal ex

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2021 Commission File Number: 001-40394 Sim

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of February 2021 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant?s name into English) 121 Menachem Begin Rd., Tel Aviv-Yafo 6701203, Israel (Address of principal executive off

SIMILARWEB ANNOUNCES FOURTH QUARTER 2021 RESULTS ABOVE PRIOR GUIDANCE AND STRONG PROGRESS ON ALL KEY METRICS Fourth quarter 2021 revenue grew 51% year-over-year to $40.2 million NRR for $100K+ ARR customers increases to 125% Introduces strong guidanc

Exhibit 99.1 SIMILARWEB ANNOUNCES FOURTH QUARTER 2021 RESULTS ABOVE PRIOR GUIDANCE AND STRONG PROGRESS ON ALL KEY METRICS Fourth quarter 2021 revenue grew 51% year-over-year to $40.2 million NRR for $100K+ ARR customers increases to 125% Introduces strong guidance for Q1 and 2022 with revenue growth over 40% TEL AVIV, ISRAEL - February 16, 2021 - Similarweb Ltd. (NYSE: SMWB) ("Similarweb" or the "

Similarweb to Add Mobile Market Data from App Annie, Bringing Together Digital Insights from Web and Mobile App Leaders for the First Time in a Single Platform

Exhibit 99.1 Similarweb to Add Mobile Market Data from App Annie, Bringing Together Digital Insights from Web and Mobile App Leaders for the First Time in a Single Platform Companies Looking to Accelerate Digital Growth Will Benefit from Unified, Comprehensive Web and App Insights Tel Aviv ? February 16, 2022 ? Similarweb (NYSE: SMWB), a leading digital intelligence company, announced a data licen

SMWB / Similarweb Ltd. / Offer Or Passive Investment

SC 13G 1 formsc13g.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 SIMILARWEB LTD. (Name of Issuer) Ordinary Shares (Title and Class of Securities) M84137104 (CUSIP Number) December 31, 2021 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this

SMWB / Similarweb Ltd. / Prosus N.V. - SC 13G Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1 (b), (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2 (b) (Amendment No. )* Similarweb Ltd. (Name of Issuer) Common Stock, par value NIS 0.01 (Title of Class of Securities) M84137104 (CUSIP Number) December 31, 2021 (Date of Event Wh

SMWB / Similarweb Ltd. / ION Crossover Partners Ltd - SC 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Similarweb LTD (Name of Issuer) Ordinary Shares, par value 0.01 NIS per share (Title of Class of Securities) M84137 10 4 (CUSIP Number) Mr. Anthony Reich, 13th Floor, Building E, 89 Medinat Hayehudim Street, Herzliya, Israel. +972-9-9703614 (Name, Address

Exhibit 1 – Joint Filing Agreement pursuant to Rule 13d-1(k)(1)

Exhibit 1 JOINT FILING AGREEMENT The undersigned parties hereby agree that this Statement on Schedule 13G filed herewith, and any amendments thereto filed hereafter by any of the undersigned parties, relating to the ordinary shares, par value NIS 0.

SMWB / Similarweb Ltd. / Viola Growth Management Fund 2 Ltd. - SC 13G Passive Investment

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO ? 240.13d-1(b), (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO ? 240.13d-2 (Amendment No. )* Similarweb Ltd. (Name of Issuer) Ordinary Shares, par value NIS 0.01 per share (Title of Class of Securities) M84137 10 4 (CUSIP Number) December 31, 2021 (

Agreement of Joint Filing

CUSIP # M84137104 Page 9 of 9 EXHIBIT A Agreement of Joint Filing The undersigned hereby agree that a single Schedule 13G (or any amendment thereto) relating to the Common Stock of the Issuer shall be filed on behalf of each of the undersigned and that this Agreement shall be filed as an exhibit to such Schedule 13G.

SMWB / Similarweb Ltd. / Vardi Joseph Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. ) SIMILARWEB LTD. (Name of Issuer) Common Stock (Title of Class of Securities) M84137104 (CUSIP Number) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ? Rule 13d-1(b) ? Rule 13d-1(c) ? Rule 13d-1(d) *The remainder o

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO SECTION 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2022 Commission File Number: 001

6-K 1 a6-kxappointmentofjoedelpr.htm 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO SECTION 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2022 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant’s name into English) 121 Menachem Begin Rd., Tel Aviv-Yafo

Joe Del Preto joins Similarweb Board of Directors

Exhibit 99.1 Joe Del Preto joins Similarweb Board of Directors TEL AVIV, Israel, January 13, 2022 - Similarweb (NYSE: SMWB), a leading digital intelligence company, today announced the appointment of veteran social-media executive Joe Del Preto to its board of directors, effective immediately. "Joe is joining the Similarweb board at a time of strong momentum in our business,? said Or Offer, CEO, S

SIMILARWEB ANNOUNCES THIRD QUARTER 2021 RESULTS ABOVE GUIDANCE RANGE Third quarter 2021 revenue grew 46% year-over-year to $35.6 million. Exceeds $150M of ARR NRR for customers with ARR of $100K or more increases to 122%. 245 customers with ARR of $1

Exhibit 99.1 SIMILARWEB ANNOUNCES THIRD QUARTER 2021 RESULTS ABOVE GUIDANCE RANGE Third quarter 2021 revenue grew 46% year-over-year to $35.6 million. Exceeds $150M of ARR NRR for customers with ARR of $100K or more increases to 122%. 245 customers with ARR of $100K or more, an increase of 48% year-over-year. Raises revenue guidance for full-year 2021. TEL AVIV, ISRAEL - November 10, 2021 - Simila

Similarweb acquires leading mobile-insights provider Embee Mobile

Exhibit 99.1 Similarweb acquires leading mobile-insights provider Embee Mobile Embee Mobile?s data and proprietary measurement approach will enhance Similarweb?s mobile app intelligence Tel Aviv ? November 10, 2021 ? Similarweb (NYSE: SMWB), a leading digital intelligence company, today announced its acquisition of Embee Mobile, a San Francisco-based mobile insights provider and market leader in m

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO SECTION 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2021 Commission File Number: 00

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO SECTION 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2021 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant?s name into English) 121 Menachem Begin Rd., Tel Aviv-Yafo 6701203, Israel (Address of principal ex

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2021 Commission File Number: 001-40394 Sim

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2021 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant?s name into English) 121 Menachem Begin Rd., Tel Aviv-Yafo 6701203, Israel (Address of principal executive off

Tzipi Ozer-Armon Joins Similarweb Board of Directors

Exhibit 99.1 Tzipi Ozer-Armon Joins Similarweb Board of Directors Oct 7, 2021 ?Tel Aviv, Israel ?Similarweb (NYSE: SMWB), a leading digital intelligence company, today announced the appointment of Tzipi Ozer-Armon to its board of directors, effective immediately. ?We are thrilled to welcome Tzipi, a long-time force in the tech industry, to the Similarweb board of directors,? said Or Offer, CEO and

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO SECTION 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2021 Commission File Number: 001

6-K 1 a6-kxappointmentoftzipiarm.htm 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO SECTION 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2021 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant’s name into English) 121 Menachem Begin Rd., Tel Aviv-Yafo

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2021 Commission File Number: 001-40394 Simil

FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2021 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant?s name into English) 121 Menachem Begin Rd., Tel Aviv-Yafo 6701203, Israel (Address of principal executive offic

SIMILARWEB ANNOUNCES SECOND QUARTER 2021 RESULTS Second quarter 2021 revenue grew 49% year-over-year to $32.5 million. Gross margin improved by 253 basis points year-over-year to 78.5%. 220 customers with ARR of $100K or more, an increase of 52% year

Exhibit 99.1 SIMILARWEB ANNOUNCES SECOND QUARTER 2021 RESULTS Second quarter 2021 revenue grew 49% year-over-year to $32.5 million. Gross margin improved by 253 basis points year-over-year to 78.5%. 220 customers with ARR of $100K or more, an increase of 52% year-over-year. Company introduces strong guidance for Q3 and full-year 2021. TEL AVIV, ISRAEL - August 11, 2021 - Similarweb Ltd. (NYSE: SMW

Sanju Bansal joins Similarweb board of directors

Exhibit 99.1 Sanju Bansal joins Similarweb board of directors June 21, 2021 ? Similarweb Ltd. (NYSE: SMWB), a leading digital market intelligence company, today announced the appointment of Sanju Bansal to its board of directors, effective immediately. ?We are thrilled to welcome Sanju to our board of directors,? said Or Offer, CEO and founder of Similarweb. ?Sanju brings decades of experience as

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO SECTION 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2021 Commission File Number: 001-40

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO SECTION 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2021 Commission File Number: 001-40394 Similarweb Ltd. (Translation of registrant?s name into English) 121 Menachem Begin Rd., Tel Aviv-Yafo 6701203, Israel (Address of principal execut

Registration Statement on Form S-8 (File No. 333-256324)

As filed with the United States Securities and Exchange Commission on May 20, 2021 Registration No.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. _____)* Similarweb LTD (Name of Issuer) Common Stock (Title of Class of Securities) M84137 10 4 (CUSIP Numbe

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Similarweb LTD (Name of Issuer) Common Stock (Title of Class of Securities) M84137 10 4 (CUSIP Number) Mr. Reich, 13th Floor, Building E, 89 Medinat Hayehudim Street, Herzliya, Israel. +972-9-9703614 (Name, Address and Telephone Number of Person Authorize

Filed Pursuant to Rule 424(b)(4) Registration No. 333-255262 Prospectus 8,000,000 Ordinary shares Similarweb Ltd. (incorporated in Israel) This is the initial public offering of Similarweb Ltd. Prior to this offering, there has been no public market

Filed Pursuant to Rule 424(b)(4) Registration No. 333-255262 Prospectus 8,000,000 Ordinary shares Similarweb Ltd. (incorporated in Israel) This is the initial public offering of Similarweb Ltd. Prior to this offering, there has been no public market for our ordinary shares. We are selling 7,500,000 ordinary shares and the selling shareholder, our Chief Executive Officer, is selling an additional 5

- F-1/A

As Filed with the Securities and Exchange Commission on May 10, 2021 Registration No.

Similarweb Ltd. 121 Menachem Begin Rd. Tel Aviv-Yafo, Israel 6701203

Similarweb Ltd. 121 Menachem Begin Rd. Tel Aviv-Yafo, Israel 6701203 May 7, 2021 Division of Corporation Finance United States Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 Attn: Jeff Kauten, Staff Attorney Jan Woo, Legal Branch Chief Lisa Etheredge, Senior Staff Accountant Robert Littlepage, Accounting Branch Chief Re: Similarweb Ltd. Registration Statement on Form

[SIGNATURE PAGES FOLLOW]

VIA EDGAR May 7, 2021 Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.

Form 8-A filed on May 7,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 Similarweb Ltd. (Exact name of registrant as specified in its charter) Israel 98-1543671 (State of incorporation or organization) (I.R.S. Employer Identification No.) 121 Menachem Begin Rd., Tel Av

Specimen share certificate

Exhibit 4.1 SIMILARWEB LTD. INCORPORATED UNDER THE LAWS OF THE STATE OF ISRAEL CUSIP ORDINARY SHARES THIS CERTIFIES THAT *SPECIMEN* Is The Owner of ***SPECIMEN*** FULLY PAID AND NON-ASSESSABLE ORDINARY SHARES OF SIMILARWEB LTD. Transferable on the books of the Corporation in person or by duly authorized attorney upon surrender of this Certificate properly endorsed. This Certificate is not valid un

2021 Employee Share Purchase Plan

Exhibit 10.4 SIMILARWEB LTD. 2021 EMPLOYEE SHARE PURCHASE PLAN ARTICLE I. PURPOSE 1.1 The purpose of this Plan is to assist Eligible Employees of the Company and its Designated Subsidiaries in acquiring a share ownership interest in the Company. 1.2 The Plan consists of two components: (i) the Section 423 Component and (ii) the Non-Section 423 Component. The Section 423 Component is intended to qu

- F-1/A

As Filed with the Securities and Exchange Commission on May 3, 2021 Registration No.

Form of Underwriting Agreement

Exhibit 1.1 UNDERWRITING AGREEMENT SIMILARWEB LTD. [l] Ordinary Shares [l], 2021 J.P. Morgan Securities LLC Citigroup Global Markets Inc. Barclays Capital Inc. Jefferies LLC As Representatives of the several Underwriters listed in Schedule 1 hereto c/o J.P. Morgan Securities LLC 383 Madison Avenue New York, New York 10179 c/o Citigroup Global Markets Inc. 388 Greenwich Street New York, New York 10

2021 Share Incentive Plan

Exhibit 10.3 SIMILARWEB LTD. 2021 Share Incentive Plan Unless otherwise defined, terms used herein shall have the meaning ascribed to them in Section 2 hereof. PURPOSE; TYPES OF AWARDS; CONSTRUCTION 1.1. Purpose. The purpose of this 2021 Share Incentive Plan (as amended, this ?Plan?) is to afford an incentive to Service Providers of Similarweb Ltd., an Israeli company (together with any successor

Form of Amended and Restated Articles of Association of the Registrant

Exhibit 3.2 THE COMPANIES LAW, 1999 A LIMITED LIABILITY COMPANY - ARTICLES OF ASSOCIATION OF SIMILARWEB LTD. As Adopted on , 2021 PRELIMINARY 1. DEFINITIONS; INTERPRETATION. (a) In these Articles, the following terms (whether or not capitalized) shall bear the meanings set forth opposite them, respectively, unless the subject or context requires otherwise. "Articles" shall mean these Articles of A

- F-1/A

As Filed with the Securities and Exchange Commission on April 22, 2021 Registration No.

Specimen share certificate

Exhibit 4.1 slide1 SMILARWEB LTD. INCORPORATED UNDER THE LAWS OF THE STATE OF ISRAEL CUSIP ORDINARY SHARES THIS CERTIFIES THAT *SPECIMEN* Is The Owner of ***SPECIMEN*** FULLY PAID AND NON-ASSESSABLE ORDINARY SHARES OF SIMILARWEB LTD. Transferable on the books of the Corporation in person or by duly authorized attorney upon surrender of this Certificate properly endorsed. This Certificate is not va

Compensation Policy for Officers and Directors

EX-10.5 5 exhibit105-fx1a1.htm EX-10.5 Exhibit 10.5 Similarweb Ltd. Compensation Policy for Executive Officers and Directors A. Overview and Objectives 1. Introduction This document sets forth the Compensation Policy for Executive Officers and Directors (this “Compensation Policy” or “Policy”) of Similarweb Ltd. (“Similarweb” or the “Company”), in accordance with the requirements of the Companies

Form of Indemnification Agreement entered into by and between the Registrant and each director and executive officer

Exhibit 10.1 INDEMNIFICATION AGREEMENT THIS INDEMNIFICATION AGREEMENT (the ?Agreement?), dated as of , 2021, is entered into by and between Similarweb Ltd., an Israeli company whose address is 121 Menachem Begin Rd., Tel Aviv-Yafo 6701203, Israel (the ?Company?), and the undersigned Director or Officer of the Company whose name appears on the signature page hereto officer (the ?Indemnitee?). WHERE

Form of Amended and Restated Articles of Association of the Registrant to become effective upon closing of this offering

Exhibit 3.2 THE COMPANIES LAW, 1999 A LIMITED LIABILITY COMPANY - ARTICLES OF ASSOCIATION OF SIMILARWEB LTD. As Adopted on , 2021 PRELIMINARY 1. DEFINITIONS; INTERPRETATION. (a) In these Articles, the following terms (whether or not capitalized) shall bear the meanings set forth opposite them, respectively, unless the subject or context requires otherwise. "Articles" shall mean these Articles of A

Power of Attorney (included in signature page to Registration Statement)

F-1 1 similarweb-fx1.htm F-1 As Filed with the Securities and Exchange Commission on April 15, 2021 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM F-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Similarweb Ltd. (Exact Name of Registrant as Specified in its Charter) State of Israel 7370 98-1543671 (State or Other Jurisdiction of Incorp

List of subsidiaries of the Registrant

Exhibit 21.1 LIST OF SUBSIDIARIES Company Name Jurisdiction of Incorporation Similarweb Inc. Delaware Similarweb UK Ltd. United Kingdom Similarweb Japan K.K. Japan Similarweb Australia Pty Ltd. Australia Similarweb Germany Gmbh Germany Similarweb France SAS France

Cooley LLP 500 Boylston Street Boston, MA 02116-3736 t: (617) 937-2300 f: (617) 937-2400 cooley.com

Nicole C. Brookshire Via EDGAR 1 617 937 2357 [email protected] April 15, 2021 U.S. Securities and Exchange Commission Division of Corporation Finance Office of Information Technologies and Services 100 F Street, N.E. Washington, D.C. 20549 Attention: Jeff Kauten Jan Woo Lisa Etheredge Robert Littlepage Re: Similarweb Ltd. Amendment No. 1 to Draft Registration Statement on Form F-1 Submitted

Loan and Security Agreement, dated December 30, 2020, between Silicon Valley Bank, Similarweb Ltd., Similarweb UK Ltd. and Similarweb, Inc.

Exhibit 10.6 LOAN AND SECURITY AGREEMENT THIS LOAN AND SECURITY AGREEMENT (this ?Agreement?) dated as of December 30, 2020 (the ?Effective Date?) between (a) SILICON VALLEY BANK, a California corporation (?Bank?), and (b) SIMILARWEB LTD, a private company organized under the laws of the State of Israel (?ISR Borrower?), SIMILARWEB UK LIMITED, a limited liability company incorporated under the laws

Amended and Restated Investor Rights Agreement, dated as of October 21, 2020, as amended, among the Registrant, Or Offer, Nir Cohen, and the investors named therein

Exhibit 10.8 Pursuant to 17 CFR 229.601, certain identified information marked ?[***]? has been excluded from this exhibit because it is both (i) not material and (ii) would be competitively harmful if publicly disclosed. AMENDED AND RESTATED INVESTORS' RIGHTS AGREEMENT THIS AMENDED AND RESTATED INVESTORS' RIGHTS AGREEMENT (this ?Agreement?) is made as of the 21st day of October 2020 by and among

Summary in English of the Lease Agreement, dated as of March 26, 2017 by and between the Registrant and Azrieli Group Ltd.

Exhibit 10.7 Summary of Hebrew Language Lease Agreement ? Azrieli Sarona Tower Following is a summary of the main terms and provisions set forth in that certain Lease Agreement between Azrieli Group Ltd. (the ?Lessor?) and Similarweb Ltd. (the ?Company?), dated March 26, 2017 (the ?Agreement?), which in its original form is in Hebrew. 1. The Lease: Approximately 4,734 gross square meters, which co

, by and between Myriad International Holdings BV and the Registrant

Exhibit 10.11 Pursuant to 17 CFR 229.601, certain identified information marked ?[***]? has been excluded from this exhibit because it is both (i) not material and (ii) would be competitively harmful if publicly disclosed. ADDENDUM NO. 2 TO THE DATA SUPPLY & LICENSE AGREEMENT Effective as of 10 January 2017 (?Effective Date?) WHEREAS:- A. Myriad International Holdings B.V., a corporation organized

Addendum No.1 to Data Supply & License Agreement, dated as of August 16, 2015, by and between Myriad International Holdings BV and the Registrant

Exhibit 10.10 Pursuant to 17 CFR 229.601, certain identified information marked ?[***]? has been excluded from this exhibit because it is both (i) not material and (ii) would be competitively harmful if publicly disclosed. ADDENDUM NO. I. TO A DATA SUPPLY & LICENSE AGREEMENT Effective as of August 2015 (?Effective Date?) This Addendum No. 1 (?Addendum?) to a certain Data Supply & License Agreement

2012 Incentive Option Plan

Exhibit 10.2 SIMILARWEB LTD. The 2012 Incentive Option Plan 1. PURPOSE OF THE PLAN The purpose of this 2012 Incentive Option Plan (the ?Plan?) is to promote the interests of SimilarWeb Ltd. (the ?Company?) and its shareholders by attracting and retaining the best available personnel for positions of substantial responsibility, providing additional incentive to employees, office holders and service

Articles of Association of the Registrant, as currently in effect

Exhibit 3.1 AMENDED AND RESTATED ARTICLES OF ASSOCIATION OF SIMILARWEB LTD. AS AMENDED ON OCTOBER 15, 2020 PRELIMINARY 1. DEFINITIONS. 1.1 Capitalized terms used in these Articles shall bear the meanings ascribed to such terms as set forth in this Article, unless inconsistent with the context: TERM DEFINITION Alliance Anglo-Peacock Nominees Limited or any Permitted Transferee thereof. Articles The

Mutual Licenses and Services Agreement, dated as of November 24, 2016, by and between SimilarTech Ltd. and the Registrant

Exhibit 10.12 Master License and Services Agreement This Mutual License and Services Agreement (hereinafter referred to as the ?Agreement?) is entered into as of the date of signature set forth below, to document an arrangement in place by and among SimilarWeb Ltd., an Israeli company with offices located at 23 Menachem Begin Rd. Tel Aviv, Israel (hereinafter ?SimilarWeb?) and SimilarTech Ltd. an

Addendum No. 1 to Mutual Licenses and Services Agreement, dated as of July 22, 2019, by and between SimilarTech Ltd. and the Registrant

Exhibit 10.13 Addendum No. 1 to Mutual License and Services Agreement This Addendum No. 1 to Mutual License & Services Agreement (the ?Addendum?), dated as of the signature date below (?Effective Date?), is entered herein by SimilarTech Ltd., with its principal offices at 65 Menachem Begin Road, Tel Aviv, Israel (?SimilarTech?) and SimilarWeb Ltd., with its principal offices at 121 Menachem Begin

Data Supply & License Agreement, dated as of February 14, 2014, by and between Myriad International Holdings BV and the Registrant

Exhibit 10.9 Pursuant to 17 CFR 229.601, certain identified information marked ?[***]? has been excluded from this exhibit because it is both (i) not material and (ii) would be competitively harmful if publicly disclosed. DATA SUPPLY & LICENSE AGREEMENT This Data Supply & License Agreement (this ?Agreement?) is made and entered into as of this 14 day of February, 2014 (the ?Effective Date?), by an

As confidentially submitted to the Securities and Exchange Commission on March 25, 2021. This draft registration statement has not been publicly filed with the Securities and Exchange Commission and all information herein remains strictly confidentia

DRS/A 1 filename1.htm As confidentially submitted to the Securities and Exchange Commission on March 25, 2021. This draft registration statement has not been publicly filed with the Securities and Exchange Commission and all information herein remains strictly confidential. Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM F-1 REGISTRATION STATEMENT

Cooley LLP 500 Boylston Street Boston, MA 02116-3736 t: (617) 937-2300 f: (617) 937-2400 cooley.com

Nicole C. Brookshire Via EDGAR and Overnight Courier +1 617 937 2357 [email protected] March 25, 2021 U.S. Securities and Exchange Commission Division of Corporation Finance Office of Information Technologies and Services 100 F Street, N.E. Washington, D.C. 20549 Attention: Jeff Kauten Jan Woo Lisa Etheredge Robert Littlepage Re: Similarweb Ltd. Draft Registration Statement on Form F-1 Submit

As confidentially submitted to the Securities and Exchange Commission on February 18, 2021. This draft registration statement has not been publicly filed with the Securities and Exchange Commission and all information herein remains strictly confiden

As confidentially submitted to the Securities and Exchange Commission on February 18, 2021.