Similarweb (NYSE: SMWB) director discloses RSU and share holdings

Rhea-AI Filing Summary

SIMILARWEB LTD. director Eilam Barak filed an initial statement of beneficial ownership, detailing his equity stake in the company. He reports holdings of ordinary shares and restricted share units (RSUs), each RSU representing a right to receive one ordinary share, with future vesting schedules.

One RSU grant is scheduled to vest in three equal annual installments starting on 11/15/2025, subject to continued service. A second RSU grant is scheduled to vest in a single installment on 02/15/2027, also conditioned on his continued service with Similarweb or its subsidiaries.

Insider Trade Summary

3 transactions reported

Mixed 3 txns

Insider Eilam Barak

Role Director

Type	Security	Shares	Price	Value
holding	Restricted Share Units, each representing one Ordinary Share	--	--	--
holding	Restricted Share Units, each representing one Ordinary Share	--	--	--
holding	Ordinary Shares	--	--	--

Holdings After Transaction: Restricted Share Units, each representing one Ordinary Share — 20,877 shares (Direct); Ordinary Shares — 10,438 shares (Direct)

Footnotes (1)

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. 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 1 year installment with the first vesting date on 02/15/2027 subject to the Reporting Person's continued service to the Company or its subsidiaries through each vesting date.

Understanding Insider Trading Forms →

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

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1. Name and Address of Reporting Person^*

Eilam Barak

(Last) (First) (Middle)

C/O NICE LTD.

13 ZARHIN STREET

(Street)

RA'ANANA

(City) (State) (Zip)

ISRAEL

(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
Restricted Share Units, each representing one Ordinary Share	20,000(2)	D
Ordinary Shares	10,438	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.

2. 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 1 year installment with the first vesting date on 02/15/2027 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.

	Barak Eilam 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)

FAQ

What does the Similarweb (SMWB) Form 3 filing by Eilam Barak show?

The filing shows director Eilam Barak’s initial ownership of Similarweb equity, including ordinary shares and restricted share units. It outlines his RSU grants and vesting schedules, establishing a baseline of his beneficial ownership as of the reported date.

What type of securities does Eilam Barak report holding in Similarweb (SMWB)?

Eilam Barak reports holding Similarweb ordinary shares and restricted share units, each RSU representing a contingent right to receive one ordinary share. These RSUs are subject to specific time-based vesting conditions tied to his continued service with the company.

How do Eilam Barak’s RSUs in Similarweb (SMWB) vest over time?

One RSU grant vests in three equal annual installments starting on November 15, 2025, if he continues serving the company. A second RSU grant vests in a single installment on February 15, 2027, also contingent on his continued service with Similarweb or its subsidiaries.

Does the Similarweb (SMWB) Form 3 indicate any stock purchases or sales by Eilam Barak?

The Form 3 reflects holdings and vesting terms rather than transactions, and the summarized data do not identify any purchases or sales. It primarily establishes Barak’s existing ownership of ordinary shares and RSUs at the time of the filing.

What conditions apply to Eilam Barak’s RSU grants in Similarweb (SMWB)?

Both RSU grants require Eilam Barak to maintain continuous service with Similarweb or its subsidiaries through each vesting date. If he continues serving through those dates, the RSUs convert into ordinary shares according to the respective vesting schedules.