Similarweb (SMWB) director Del Preto reports 20,000 RSUs and 37,142 shares

Rhea-AI Filing Summary

SIMILARWEB LTD. director Joseph Del Preto filed an initial ownership report, showing both equity awards and direct share holdings in the company. He holds 20,000 Restricted Share Units, each representing one ordinary share, which vest in a one-year installment, with the first vesting date on 02/15/2027 subject to continued service. He also directly holds 37,142 ordinary shares following this report. The filing does not reflect any new share purchases or sales, but establishes his baseline ownership position as a director.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Del Preto Joseph

Role Director

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

Holdings After Transaction: Restricted Share Units, each representing one Ordinary Share — 20,000 shares (Direct); Ordinary Shares — 37,142 shares (Direct)

Footnotes (1)

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Key Figures

Restricted Share Units: 20,000 RSUs Ordinary shares held: 37,142 shares First RSU vesting date: 02/15/2027

3 metrics

Restricted Share Units 20,000 RSUs Each RSU represents one ordinary share, subject to vesting

Ordinary shares held 37,142 shares Direct ownership reported following the Form 3

First RSU vesting date 02/15/2027 RSUs vest in 1-year installment, subject to continued service

Key Terms

Restricted Share Units, Ordinary Shares, Form 3, vesting

4 terms

Restricted Share Units financial

"Restricted Share Units, each representing one Ordinary Share"

Restricted share units (RSUs) are a promise from a company to give an employee or service provider actual shares or cash equal to the shares after certain conditions are met, typically staying with the company for a set time or hitting performance targets. Think of them like a time-locked gift card that becomes usable only after you’ve earned it. For investors, RSUs matter because they align employee incentives with company performance and can increase the number of shares outstanding over time, diluting existing ownership and affecting earnings per share.

Ordinary Shares financial

"Ordinary Shares, total shares following transaction 37142.0000"

Ordinary shares are a type of ownership stake in a company, giving shareholders a right to participate in the company’s profits and decision-making through voting. They are similar to owning a piece of a business, and their value can rise or fall based on the company's performance. Investors buy ordinary shares to potentially earn dividends and benefit from the company's growth over time.

Form 3 regulatory

"INSIDER FILING DATA (Form 3)"

Form 3 is the initial public filing that officers, directors and large shareholders must submit to report their ownership of a company’s securities when they become insiders. It acts like an opening inventory sheet that gives investors a starting point to see who holds significant stakes and to spot later trades or potential conflicts of interest, helping assess insider confidence and transparency.

vesting financial

"The RSUs vest in 1 year installment with the first vesting date on 02/15/2027"

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

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

OMB APPROVAL

OMB Number:			3235-0104
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1. Name and Address of Reporting Person^*

Del Preto Joseph

(Last) (First) (Middle)

600 WEST CHICAGO AVENUE

SUITE 850

(Street)

CHICAGO ILLINOIS 60610

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
04/10/2026

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	20,000(1)	D
Ordinary Shares	37,142	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 share of ordinary stock 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.

	Joseph Michael Del Preto by: Oppenheimer Israel, as Attorney-in-fact	04/10/2026
	** 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 SIMILARWEB (SMWB) director Joseph Del Preto report in this Form 3?

Joseph Del Preto reports an initial ownership position in Similarweb. The filing shows 20,000 Restricted Share Units and 37,142 ordinary shares held directly, establishing his baseline equity stake as a director without indicating any recent share purchases or sales.

How many RSUs does Joseph Del Preto hold in Similarweb (SMWB)?

He holds 20,000 Restricted Share Units in Similarweb. Each RSU represents a contingent right to receive one ordinary share, subject to vesting conditions that require his continued service with the company or its subsidiaries through specified vesting dates.

When do Joseph Del Preto’s Similarweb (SMWB) RSUs start vesting?

His Restricted Share Units begin vesting on 02/15/2027. The RSUs vest in a one-year installment schedule, and vesting is conditioned on his continued service to Similarweb Ltd. or its subsidiaries through each applicable vesting date described in the award terms.

How many Similarweb (SMWB) ordinary shares does Joseph Del Preto directly own?

He directly owns 37,142 ordinary shares of Similarweb. This figure represents his direct share ownership reported in the Form 3 and is separate from the 20,000 Restricted Share Units, which are contingent and subject to future vesting conditions.

Does this Similarweb (SMWB) Form 3 show any insider buying or selling by Joseph Del Preto?

The Form 3 does not show insider buying or selling activity. Instead, it records his existing holdings: 37,142 ordinary shares and 20,000 RSUs. It functions as an initial ownership snapshot rather than a record of recent transactions in the company’s stock.