Lisa M. Campbell Files Form 3 for Similarweb Ltd.

TL;DR

**New insider Lisa M. Campbell just filed a Form 3 for Similarweb Ltd., signaling her initial beneficial ownership.**

AI Summary

This Form 3 filing, dated March 26, 2026, indicates that Lisa M. Campbell has become an insider at Similarweb Ltd. (0001842731). As an insider, she is now required to disclose her beneficial ownership of the company's securities. This matters to investors because insider filings can signal confidence (or lack thereof) in the company's future, as insiders typically have more information than the public.

Why It Matters

This filing signals a new insider at Similarweb Ltd., which could indicate future stock transactions that investors often monitor for insights into company health.

Risk Assessment

Risk Level: low — A Form 3 filing is an initial disclosure and doesn't inherently carry significant risk, but rather sets the stage for future potential transactions.

Analyst Insight

Smart investors should add Lisa M. Campbell to their watchlist for Similarweb Ltd. to monitor any subsequent Form 4 filings, which would detail actual purchases or sales of company stock.

Key Players & Entities

• Lisa M. Campbell (person) — Reporting Person
• SIMILARWEB LTD. (company) — Issuer
• 0001842731 (company) — Issuer CIK
• 0001775679 (person) — Reporting Person CIK

Forward-Looking Statements

• Lisa M. Campbell will file a Form 4 in the future, disclosing actual transactions of Similarweb Ltd. securities. (Lisa M. Campbell) — high confidence, target: Within 1 year of 2026-03-26

FAQ

Filing Documents

• primary_doc.html (3)
• primary_doc.xml (3) — 4KB
• poalisacampbell.htm (EX-24) — 4KB
• 0001976408-26-000288.txt ( ) — 9KB

From the Filing

SEC FORM 3 SEC Form 3 FORM 3 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940 OMB APPROVAL OMB Number: 3235-0104 Estimated average burden hours per response: 0.5 1. Name and Address of Reporting Person * Campbell Lisa M (Last) (First) (Middle) C/O DROPBOX, INC. 1800 OWENS STREET (Street) SAN FRANCISCO CALIFORNIA 94158 (City) (State) (Zip) UNITED STATES (Country) 2. Date of Event Requiring Statement (Month/Day/Year) 03/26/2026 3. Issuer Name and Ticker or Trading Symbol SIMILARWEB LTD. [ SMWB ] 3a. Foreign Trading Symbol 5. If Amendment, Date of Original Filed (Month/Day/Year) 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director 10% Owner Officer (give title below) Other (specify below) 6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person Table I - Non-Derivative Securities Beneficially Owned 1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5) Restricted Share Units, each representing one Ordinary Share 20,877 (1) D Ordinary Shares 5,219 D Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year) 3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5) Date Exercisable Expiration Date Title Amount or Number of Shares Explanation of Responses: 1. The Reporting Person was granted restricted stock units ("RSUs"), which each represent a contingent right to receive one ordinary share of Similarweb Ltd (the "Company"). The RSUs vest in 3 years period equal installments with the first vesting date on 11/15/2025 subject to the Reporting Person's continued service to the Company or its subsidiaries through each vesting date. Remarks: This Form 3 has been filed after March 18,2026 but prior to April 20,2026 in reliance on the temporary relief made available to the directors and officers of certain foreign private issuers by the Staff of the Securities and Exchange Commission in its no action letter dated March 13,2026. Lisa Campbell by: Oppenheimer Israel, as Attorney-in-fact 03/26/2026 ** Signature of Reporting Person Date Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. * If the form is filed by more than one reporting person, see Instruction 5 (b)(v). ** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a). Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure. Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number. * Form 3: SEC 1473 (03-26)

View Full Filing

View this 3 filing on SEC EDGAR