FORM 6-K

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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~~September 2025

Commission File Number: 001-40394

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Similarweb Ltd.

(Translation of registrant’s name into English)

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33 Yitzhak Rabin Rd.,

Givatayim 5348303, Israel

(Address of principal executive offices)

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Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F [ X ] Form 40-F [ ]

~~Indicate~~Explanatory ~~by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): [ ]~~Note

~~Indicate~~On bySeptember ~~check~~2, ~~mark~~2025, ifSimilarweb ~~the~~Ltd. ~~registrant~~(“Similarweb” isor ~~submitting~~the “Company”) announced the ~~Form~~planned ~~6-K~~departure of its Chief Financial Officer, Jason Schwartz. The Company has initiated a search for a new CFO. Mr. Schwartz will continue in ~~paper~~his asrole ~~permitted~~until byhis ~~Regulation~~departure ~~S-T~~or ~~Rule~~until ~~101(b)(7):~~a [successor ]is appointed. The Company issued a press release titled “Similarweb announces planned CFO departure after 10 years of service.” A copy of the press release is furnished as Exhibit 99.1 herewith.

~~EXPLANATORY~~Exhibit ~~NOTE~~99.1 is hereby expressly incorporated by reference into the registrant’s registration statements on Form S-8 filed with the Securities and Exchange Commission on February 27, 2025 (File no. 333-285314), February 28, 2024 (File no. 333-277449), on March 23, 2023 (File no. 333-270793), on April 15, 2022 (File no. 333-264307) and on May 20, 2021 (File No. 333-256324) and registration statement on Form F-3 filed with the Securities and Exchange Commission on May 10, 2024 (File no. 333-279295).

Similarweb Ltd. (the “Company”) today announced the results of its annual general shareholders meeting (the “Meeting”), which was held at 4:00 p.m. (Israel time) on August 28, 2025, at the Company’s offices at 33 Yitzhak Rabin Rd., Givatayim, 5348303, Israel.


Exhibit No.						Description

99.1						Similarweb announces planned CFO departure after 10 years of service

~~At the Meeting, the Company’s shareholders voted upon and approved, by the respective requisite majority in accordance with the Israeli Companies Law, 5759~~-~~1999,~~ ~~and~~2 the Company’s articles of association, all proposals that were described in the Company’s proxy statement related to the Meeting, which was attached as Exhibit 99.1 to the Company’s Report of Foreign Private Issuer on Form 6-~~K furnished to the Securities and Exchange Commission on July 24, 2025.~~

This Report of Foreign Private Issuer on Form 6-K is incorporated by reference into the Company’s registration statements on Form S-3 (Registration No. 333-279295) and Form S-8 (Registration Nos. 333-256324, 333-264307, 333-270793, 333-277449 and 333-285314).

Election of New Board Member.

At the Meeting, the Company’s shareholders voted upon and approved, the election of Ms. Tamar Rapaport-Dagim as a Class I director.

The press release announcing this election is appended as Exhibit 99.1 to this Form 6-K.

The information in Exhibit 99.1 attached hereto is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section, nor shall it be deemed incorporated by reference in any filing made by the Company under the Securities Act of 1933, as amended, or the Exchange Act, except as otherwise set forth herein or as shall be expressly set forth by specific reference in such a filing.

Exhibit Number						Description
99.1						Similarweb Names Tamar Rapaport-Dagim to its Board of Directors

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned, ~~thereunto~~hereunto duly authorized.

Similarweb Ltd.

Date: August 28, 2025

By:

/s/ Jason Schwartz

Date: September 2, 2025

By:

/s/ Or Offer

Jason Schwartz Chief Financial Officer

Or OfferChief Executive Officer

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