FORM 6-K

___________________________

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

~~FORM 6-K~~___________________________

REPORT OF FOREIGN ~~PRIVATE~~ ISSUER

PURSUANT TO ~~SECTION~~ RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of ~~February~~March 2026

Commission File Number: 001-40394

___________________________

Similarweb Ltd.

(Translation of registrant’s name into English)

~~33 Yitzhak Rabin St.,~~___________________________

~~Givatayim,~~33 ~~5348303,~~Yitzhak ~~Israel~~Rabin Rd.,

Givatayim 5348303, Israel

(Address of principal executive offices)

___________________________

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 by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ☐

Explanatory Note

On March 26, 2026, Similarweb ~~CEO~~Ltd. ~~and~~(“Similarweb” Coor the “Company”) announced the appointment of Harel Beit-~~Founder~~On Oras ~~Offer~~Chairman ~~Purchases~~of its Board of Directors. The Company ~~Shares~~issued a press release titled “Similarweb Appoints Harel Beit-On as Chairman of its Board of Directors”. A copy of the press release is furnished as Exhibit 99.1 herewith.

OnExhibit ~~February~~99.1 19is hereby expressly incorporated by reference into the registrant’s registration statements on Form S-8 filed with the Securities and Exchange Commission on March 2, 2026 (File no. 333-293912), OrFebruary ~~Offer~~27, ~~CEO~~2025 ~~and~~(File Cono. 333-~~Founder~~285314), ofFebruary ~~Similarweb~~28, ~~Ltd.~~2024 (~~“Similarweb”~~File orno. ~~the “Company”~~333-277449), ~~purchased~~on 40March 23,~~000~~ ~~ordinary~~2023 ~~shares~~(File ofno. ~~the~~333-270793), ~~Company~~on inApril ~~open~~15, ~~market~~2022 ~~transactions~~(File no. ~~The~~333-264307) ~~shares~~and ~~were~~on ~~purchased~~May at20, an2021 ~~average~~(File ~~price~~No. of333-256324) ~~$2.45~~and ~~per~~registration ~~share,~~statement ~~representing~~on aForm ~~total~~F-3 ~~investment~~filed ofwith ~~approximately~~the ~~$98~~Securities and Exchange Commission on May 10,~~000~~ ~~from~~2024 ~~his~~(File ~~personal~~no. ~~funds~~333-279295).

The information in this Report on Form 6-K 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 No.						Description

99.1						Similarweb Appoints Harel Beit-On as Cha irman of its Board of Direct ors

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 hereunto duly authorized.

Similarweb Ltd.

Date: February 23, 2026

By:

/s/ Ran Vered

Date: March 26, 2026

By:

/s/ Ran Vered

Name:

Ran Vered

Ran VeredChief Financial Officer

Title:

Chief Financial Officer

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