# EDGAR Filing Document

**Accession Number:** 0001842731
**File Stem:** 0001842731-26-000031
**Filing Date:** 2026-5
**Character Count:** 35644
**Document Hash:** 932ebd52b9c7f0d05515529f516aca99
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001842731-26-000031.hdr.sgml**: 20260513

**ACCESSION NUMBER**: 0001842731-26-000031

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20260331

**FILED AS OF DATE**: 20260513

**DATE AS OF CHANGE**: 20260513

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** SIMILARWEB LTD.
- **CENTRAL INDEX KEY:** 0001842731
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-COMPUTER PROGRAMMING, DATA PROCESSING, ETC. [7370]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 000000000
- **STATE OF INCORPORATION:** L3
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 6-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-40394
- **FILM NUMBER:** 26970878

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 33 YITZHAK RABIN RD.
- **CITY:** GIVATAYIM
- **PROVINCE COUNTRY:** L3
- **BUSINESS PHONE:** 972 (73) 320-4086

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 33 YITZHAK RABIN RD.
- **CITY:** GIVATAYIM
- **PROVINCE COUNTRY:** L3

**FORM 6-K**

___________________________

**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 May 2026**

**Commission File Number: 001-40394**

___________________________

**Similarweb Ltd.**

**(Translation of registrant's name into English)**

___________________________

**33 Yitzhak 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): [ ]

------

**EXHIBIT INDEX** 

On May 13, 2026, Similarweb Ltd. will hold a conference call regarding its financial results for the first quarter ended March 31, 2026. A copy of the related press release is furnished as Exhibit 99.1 hereto.

Exhibit 99.1, other than the portions of Exhibit 99.1 under the caption "Financial Outlook", is 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), 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).

---

| | |
|:---|:---|
| **Exhibit No.** | **Description** |
| [99.1](a6-kxexhibit991xq131032026.htm) | <u>[Press Release of Similarweb Ltd., dated May 13, 202](a6-kxexhibit991xq131032026.htm)[6](a6-kxexhibit991xq131032026.htm)</u> |

---

**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.** | **Similarweb Ltd.** |
| Date: May 13, 2026 | By: | <u>/s/ Ran Vered</u> |
|  |  | Ran Vered<br>Chief Financial Officer |

---

## Exhibit 99.1

**Exhibit 99.1**

**SIMILARWEB ANNOUNCES FIRST QUARTER 2026 RESULTS**

*Revenue and non-GAAP operating profit at the top end of the guidance range*

*Raising the lower end of the 2026 guidance range for both revenue and Non-GAAP operating profit*

*Tenth consecutive quarter of positive normalized free cash flow*

*Multi-year subscriptions increase to 64% of ARR up from 52% in 2025* 

**TEL AVIV, ISRAEL** -- May 13, 2026 -- Similarweb Ltd. (NYSE: SMWB) ("Similarweb" or the "Company"), a leading digital data and analytics company powering critical business decisions, today announced financial results for its first quarter ended March 31, 2026.

"I am proud of the first quarter financial results that reflect solid execution and the resilience of the Similarweb team during an eventful quarter," stated Or Offer, Co-Founder and CEO of Similarweb. "We delivered revenue and non-GAAP operating profit at the top end of our guidance range. Sales productivity improved for the third consecutive quarter and contributed to our strongest first quarter ARR increase since 2022." Offer concluded, "Commercial interest in our AI-related data and solutions continues to expand, and our growing pipeline of opportunities provides us with confidence in our strategy to build an AI-driven data powerhouse that delivers profitable growth."

**<u>First Quarter 2026 Financial Highlights</u>**

*(All results compared with the first quarter of 2025)*

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Total revenue was $73.9 million, an increase of 10% compared to $67.1 million.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• GAAP loss from operations was $(4.4) million or (6)% of revenue, compared to $(9.3) million or (14)% of revenue. GAAP net loss was $(6.4) million compared to $(9.3) million. GAAP net loss per share was $(0.07), compared to $(0.11).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Non-GAAP operating profit was $2.4 million or 3% of revenue, compared to non-GAAP operating loss of $(1.3) million or (2)% of revenue. Non-GAAP net income was $1.0 million or 1% of revenue, compared to non-GAAP net loss of $(2.4) million or (4)% of revenue. Non-GAAP diluted net income per share was $0.01, compared to non-GAAP diluted loss per share of $(0.03).

------

**Exhibit 99.1**

**<u>First Quarter 2026 Operational Highlights</u>**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**•** Number of customers with annual recurring revenue (ARR) of $100,000 or more grew to 461, as of March 31, 2026, an increase of 12% year-over-year.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Customers with ARR of $100,000 or more contributed 64% of the total ARR as of March 31, 2026, up from 61% as of March 31, 2025.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**•** Dollar-based net retention rate (NRR), for customers with ARR of $100,000 or more was 103% in the first quarter of 2026, compared to 111% in the first quarter of 2025.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**•** Overall NRR was 98% in the first quarter of 2026, compared to 101% in the first quarter of 2025.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• 64% of our overall ARR is contracted under multi-year subscriptions as of March 31, 2026, increased from 52% as of March 31, 2025.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Remaining performance obligations (RPO) , increased 18% year-over-year, to $297.7 million as of March 31, 2026, as compared to $252.7 million as of March 31, 2025.

**<u>Recent Business Highlights</u>**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**•** The company recently expanded its ecommerce offering with the launch of Similarweb Retail Intelligence, a unified suite that combines Amazon IQ with Cross-Retail IQ to give brands and retailers a more complete view of shopper behavior and digital shelf performance. The product extends Similarweb's coverage across Amazon marketplaces and more than 650 online stores and marketplaces, enabling customers to analyze product mix, availability, pricing, competitive positioning, and emerging retail trends in a single intelligence layer.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• In May, Similarweb expanded its partnership with Manus, embedding additional keyword, referral, landing page and popular page datasets into Manus's AI agent experience. Building on the January integration of Similarweb traffic and engagement data, Manus users can now ask plain-language business questions and generate competitive intelligence briefs that explain not only who is winning online, but why. The expansion strengthens Similarweb's role as an AI-native intelligence layer, grounding agent-driven workflows in trusted, real-world digital data.

------

**Exhibit 99.1**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• During the first quarter, the company signed a seven digit LLM data training contract with an existing big tech customer. This was one of the two contracts that was deferred from the fourth quarter. We expect a second large LLM data contract to be signed over the coming quarters.

**<u>Balance Sheet and Cash Flow</u>**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• In the first quarter of 2026, net cash provided by operating activities was $0.2 million, compared to $4.9 million for the first quarter of 2025. Free cash flow was $(0.3) million, compared to $4.4 million for the first quarter of 2025. Normalized free cash flow was $6.6 million, compared to $4.9 million for the first quarter of 2025.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**•** Cash and cash equivalents was $65.3 million as of March 31, 2026, compared to $72.4 million as of December 31, 2025.

"We delivered revenue and non-GAAP operating profit at the top end of our guidance range, while generating $6.6 million of normalized free cash flow in the first quarter," said Ran Vered, Chief Financial Officer of Similarweb. "This was our tenth consecutive quarter of positive normalized free cash flow, reinforcing our commitment to disciplined execution, profitable growth and durable cash generation. Our first quarter performance provides a solid base for 2026, and we are raising the low end of our full year guidance to reflect increased confidence in our outlook."

**<u>Financial Outlook</u>**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• FY 2026 Guidance

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;◦ Total revenue for fiscal year 2026 estimated between $307.0 million and $315.0 million, representing approximately 10% growth year-over-year at the mid-point of the range.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;◦ Non-GAAP operating profit for fiscal year 2026 estimated between $17.0 million and $19.0 million.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Q2 2026 Guidance

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;◦ Total revenue estimated between $74.5 million and $76.5 million, representing approximately 6% growth year-over-year at the mid-point of the range.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;◦ Non-GAAP operating profit estimated between $3.0 million and $5.0 million.

------

**Exhibit 99.1**

The Company's second quarter and full year 2026 financial outlook is based upon a number of assumptions that are subject to change and many of which are outside the Company's control. Actual results may vary from these assumptions, and the Company's expectations may change. There can be no assurance that the Company will achieve these results.

The Company does not provide guidance for operating loss, the most directly comparable GAAP measure to non-GAAP operating loss, and similarly cannot provide a reconciliation of this measure to their closest GAAP equivalent without unreasonable effort due to the unavailability of reliable estimates for certain items. These items are not within the Company's control and may vary greatly between periods and could significantly impact future financial results.

**<u>Conference Call Information</u>**

The financial results and business highlights will be discussed on a conference call and webcast scheduled at 8:30 a.m. Eastern Time on Wednesday, May 13, 2026. A live webcast of the call can be accessed from Similarweb's Investor Relations website at https://ir.similarweb.com. An archived webcast of the conference call will also be made available on the Similarweb website following the call. The live call may also be accessed via telephone at (877) 407-0726 toll-free and at +1 (201) 689-7806 internationally.

------

**Exhibit 99.1**

**Forward-Looking Statements**

This press release contains "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933, as amended, or the Securities Act, and Section 21E of the Securities Exchange Act of 1934, as amended, including statements relating to our guidance for the second quarter and full year of 2026 described under "Financial Outlook" and the expected performance of our business, future financial results, strategy, long-term growth and overall future prospects. Forward-looking statements include all statements that are not historical facts. Such statements may be preceded by the words "intends," "may," "will," "plans," "expects," "anticipates," "projects," "predicts," "estimates," "aims," "believes," "hopes," "potential" or similar words. These forward-looking statements reflect our current views regarding our intentions, products, services, plans, expectations, strategies and prospects, which are based on information currently available to us and assumptions we have made. Actual results may differ materially from those described in such forward-looking statements and are subject to a number of known and unknown risks, uncertainties, other factors and assumptions that are beyond our control. Such risks and uncertainties include, without limitation, risks and uncertainties associated with: (i) our expectations regarding our revenue, expenses and other operating results; (ii) our ability to acquire new customers and successfully retain existing customers; (iii) our ability to successfully develop and market AI solutions and to increase usage of our solutions and upsell and cross-sell additional solutions; (iv) our ability to sustain profitability; (v) anticipated trends, growth rates, changes in currency exchange rates, rising interest rates, rising global inflation and current macroeconomic conditions, challenges in our business and in the markets in which we operate, and the impact of geopolitical and macroeconomic conditions or on our company and business; (vi) future investments in our business, our anticipated capital expenditures and our estimates regarding our capital requirements; (vii) the costs and success of our sales and marketing efforts and our ability to promote our brand; (viii) our reliance on key personnel and our ability to identify, recruit and retain skilled personnel; (ix) our ability to effectively manage our growth, including continued international expansion; (x) our reliance on certain third party platforms and sources for the collection of data necessary for our solutions; (xi) our ability to protect our intellectual property rights and any costs associated therewith; (xii) our ability to identify and complete acquisitions that complement and expand our reach and platform; (xiii) our ability to comply or remain in compliance with laws and regulations that currently apply or become applicable to our business, including in Israel, the United States, the European Union, the United Kingdom and other jurisdictions where we elect to do business; (xiv) our ability to compete effectively with existing competitors and new market entrants; and (xv) the growth rates of the markets in which we compete.

These risks and uncertainties are more fully described in our filings with the Securities and Exchange Commission, including in the section entitled "Risk Factors" in our Form 20-F filed with the Securities and

------

**Exhibit 99.1**

Exchange Commission on March 2, 2026, and subsequent reports that we file with the Securities and Exchange Commission. Moreover, we operate in a very competitive and rapidly changing environment. New risks emerge from time to time. It is not possible for our management to predict all risks, nor can we assess the impact of all factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements we may make. In light of these risks, uncertainties and assumptions, we cannot guarantee future results, levels of activity, performance, achievements, or events and circumstances reflected in the forward-looking statements will occur.

Forward-looking statements represent our beliefs and assumptions only as of the date of this press release. Except as required by law, we undertake no duty to update any forward-looking statements contained in this release as a result of new information, future events, changes in expectations or otherwise.

------

**Exhibit 99.1**

**Non-GAAP Financial Measures**

This press release contains certain financial measures that are expressed on a non-GAAP basis. We use these non-GAAP financial measures internally to facilitate analysis of our financial and business trends and for internal planning and forecasting purposes. We believe these non-GAAP financial measures, when taken collectively, may be helpful to investors because they provide consistency and comparability with past financial performance by excluding certain items that may not be indicative of our business, results of operations, or outlook. However, non-GAAP financial measures have limitations as an analytical tool and are presented for supplemental informational purposes only. They should not be considered in isolation from, or as a substitute for, financial information prepared in accordance with GAAP or as a measure of liquidity. Free cash flow represents net cash provided by (used in) operating activities less capital expenditures and capitalized internal-use software costs. Normalized free cash flow represents free cash flow less capital investments related to the Company's new headquarters, payments received in connection with these capital investments and deferred payments related to business combinations. Non-GAAP operating income (loss), non-GAAP gross profit, non-GAAP gross margin, non-GAAP operating margin, non-GAAP research and development expenses, non-GAAP sales and marketing expenses, non-GAAP general and administrative expenses, non-GAAP net income (loss) and non-GAAP net income (loss) per share represent the comparable GAAP financial figure operating income (loss) or expense, less share-based compensation, adjustments and payments related to business combinations, amortization of intangible assets and certain other non-recurring items, non-operating foreign exchange gains or losses and the relevant net tax effect as applicable and indicated in the below tables.

**Other Metrics**

Customer acquisition costs (CAC) represent the portion of sales and marketing expenses allocated to acquire new customers. Customer retention costs (CRC) represent the portion of sales and marketing expenses allocated to retain existing customers and to increase existing customers' subscriptions. Annual recurring revenue (ARR) represents the annualized subscription revenue we would contractually expect to receive from customers assuming no increases or reductions in their subscriptions. CAC payback period is the estimated time in months to recover CAC in terms of incremental gross profit that newly acquired customers generate. Net retention rate (NRR) represents the comparison of our ARR from the same set of customers as of a certain point in time, relative to the same point in time in the previous year ago period, expressed as a percentage.

We define Annual Recurring Revenue (ARR) as the annualized subscription revenue we would contractually expect to receive from customers assuming no increases or reductions in their subscriptions. A contract is

------

**Exhibit 99.1**

included in ARR for a particular period if it is active at the end of the applicable period and is excluded if it is not active at the end of the applicable period. Multi-year contracts are annualized by dividing the total committed contract value by the number of months in the subscription term and then multiplying by 12. ARR excludes non-recurring revenues, non-subscription revenues, revenues that are one-time in nature or revenues from subscriptions to our offerings for a period that is less than an annual subscription term.

ARR is an operational measure that management uses to evaluate the scale of our annual subscription contracts. While ARR is useful in assessing the scale of our contracted subscription business, it is not necessarily indicative of future GAAP revenue, which is subject to factors such as customer renewals, expansions, contractions, churn and upsell or cross-sell opportunities. Since ARR is not a defined measure under GAAP, investors should not consider ARR as a substitute for revenue recognized under GAAP or for other GAAP-related measures such as remaining performance obligations or deferred revenue. ARR differs from revenue recognized in accordance with GAAP because GAAP revenue is recognized as performance obligations are satisfied, includes non-recurring revenues, such as revenue that is one-time in nature, subscriptions with less than an annual term, non-subscription revenue and the effects of contract modifications.

------

**Exhibit 99.1**

**<u>Press Contact:</u>**

David Carr

Similarweb

press@similarweb.com

**<u>Investor Contact:</u>**

Rami Myerson

Similarweb

rami.myerson@similarweb.com

------

**Exhibit 99.1**

**<u>Similarweb Ltd.<br>Consolidated Balance Sheets</u>**<br> U.S. dollars in thousands (except share and per share data)

---

| | | |
|:---|:---|:---|
| | **December 31,** | **March 31,** |
| | **2025** | **2026** |
| | | **(Unaudited)** |
| **Assets** |  |  |
| Current assets: |  |  |
| &nbsp;&nbsp;Cash and cash equivalents | $72421 | $65257 |
| &nbsp;&nbsp;Restricted deposits | 6360 | 6432 |
| &nbsp;&nbsp;Accounts receivable, net | 54063 | 48565 |
| &nbsp;&nbsp;Deferred contract costs | 11551 | 10556 |
| &nbsp;&nbsp;Prepaid expenses and other current assets | 5949 | 7824 |
| &nbsp;&nbsp;&nbsp;&nbsp;Total current assets | 150344 | 138634 |
| Property and equipment, net | 22040 | 21410 |
| Deferred contract costs, non-current | 8177 | 8769 |
| Operating lease right-of-use assets | 34417 | 32472 |
| Goodwill and intangible assets, net | 45581 | 55790 |
| Other non-current assets | 586 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total assets** | $**261145** | $**257075** |
| **Liabilities and shareholders' equity** |  |  |
| Current liabilities: |  |  |
| &nbsp;&nbsp;Accounts payable | $13871 | $12299 |
| &nbsp;&nbsp;Payroll and benefit related liabilities | 20342 | 19544 |
| &nbsp;&nbsp;Deferred revenue | 112169 | 117474 |
| &nbsp;&nbsp;Other payables and accrued expenses | 41342 | 37476 |
| &nbsp;&nbsp;Operating lease liabilities | 8841 | 6408 |
| &nbsp;&nbsp;&nbsp;&nbsp;Total current liabilities | 196565 | 193201 |
| Deferred revenue, non-current | 1226 | 1900 |
| Operating lease liabilities, non-current | 34455 | 32983 |
| Other long-term liabilities | 5573 | 8166 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total liabilities** | 237819 | 236250 |
| Shareholders' equity |  |  |
| &nbsp;&nbsp;&nbsp; Ordinary Shares, NIS 0.01 par value 500,000,000 shares authorized as of December 31, 2025 and March 31, 2026 (Unaudited), 86,964,370 and 87,602,709 shares issued as of December 31, 2025 and March 31, 2026 (Unaudited), 86,962,202 and 87,600,541 outstanding as of December 31, 2025 and March 31, 2026 (Unaudited), respectively; | 240 | 242 |
| &nbsp;&nbsp;&nbsp;Additional paid-in capital | 419578 | 424307 |
| &nbsp;&nbsp;&nbsp;Accumulated other comprehensive income | 1000 | 126 |
| &nbsp;&nbsp;&nbsp;Accumulated deficit | (397492) | (403850) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total shareholders' equity | 23326 | 20825 |
| **Total liabilities and shareholders' equity** | $**261145** | $**257075** |

---

&nbsp;&nbsp;&nbsp;&nbsp;

------

**Exhibit 99.1**

**<u>Similarweb Ltd.<br>Consolidated Statements of Comprehensive Income (Loss)</u>**

U.S. dollars in thousands (except share and per share data)

---

| | | |
|:---|:---|:---|
| | **Three Months Ended March 31,** | **Three Months Ended March 31,** |
| | **2025** | **2026** |
| | **(Unaudited)** | **(Unaudited)** |
| Revenue | $67087 | $73878 |
| Cost of revenue | 13970 | 15184 |
| Gross profit | 53117 | 58694 |
| Operating expenses: |  |  |
| &nbsp;&nbsp;Research and development | 18004 | 19311 |
| &nbsp;&nbsp;Sales and marketing | 32156 | 30921 |
| &nbsp;&nbsp;General and administrative | 12248 | 12879 |
| &nbsp;&nbsp;&nbsp;&nbsp;Total operating expenses | 62408 | 63111 |
| **Loss from operations** | (9291) | (4417) |
| &nbsp;&nbsp;Finance income (expenses), net | 1007 | (622) |
| **Loss before income taxes** | (8284) | (5039) |
| Provision for income taxes | 975 | 1319 |
| **Net loss** | $(9259) | $(6358) |
| Net loss per share attributable to ordinary shareholders, basic and diluted | $(0.11) | $(0.07) |
| Weighted-average shares used in computing net loss per share attributable to ordinary shareholders, basic and diluted | 83135281 | 87275730 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Net loss** | $(9259) | $(6358) |
| &nbsp;&nbsp;&nbsp;&nbsp;**Other comprehensive loss, net of tax** |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Change in unrealized loss on cashflow hedges | (742) | (874) |
| &nbsp;&nbsp;&nbsp;&nbsp;Total other comprehensive loss, net of tax | (742) | (874) |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total comprehensive loss** | $(10001) | $(7232) |

---

------

**Exhibit 99.1**

**Share-based compensation costs included above:**

U.S. dollars in thousands

---

| | | |
|:---|:---|:---|
| | **Three Months Ended March 31,** | **Three Months Ended March 31,** |
| | **2025** | **2026** |
| | **(Unaudited)** | **(Unaudited)** |
| Cost of revenue | $249 | $180 |
| Research and development | 1794 | 1703 |
| Sales and marketing | 1336 | 1104 |
| General and administrative | 2430 | 1689 |
| **Total** | $**5809** | $**4676** |

---

------

**Exhibit 99.1**

**<u>Similarweb Ltd.<br>Consolidated Statements of Cash Flows</u>**

U.S. dollars in thousands

---

| | | |
|:---|:---|:---|
| | **Three Months Ended March 31,** | **Three Months Ended March 31,** |
| | **2025** | **2026** |
| | **(Unaudited)** | **(Unaudited)** |
| **Cash flows from operating activities:** |  |  |
| &nbsp;&nbsp;&nbsp;Net loss | $(9259) | $(6358) |
| &nbsp;&nbsp;&nbsp;&nbsp;Adjustments to reconcile net loss to net cash provided by operating activities: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Depreciation and amortization | 2098 | 2074 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Finance (income) expense | (160) | 324 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Unrealized (gain) loss from hedging future transactions | (30) | 8 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Share-based compensation | 5809 | 4676 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gain from sale of equipment |  | (2) |
| &nbsp;&nbsp;&nbsp;Changes in operating assets and liabilities: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Change in operating lease right-of-use assets and liabilities, net | (813) | (1960) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Decrease in accounts receivable, net | 11759 | 5818 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Decrease in deferred contract costs | 1285 | 403 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Increase in other current assets | (1225) | (2752) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(Increase) decrease in other non-current assets | (237) | 586 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Decrease in accounts payable | (2810) | (1510) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Increase in deferred revenue | 54 | 5920 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Increase (decrease) in other non-current liabilities | 67 | (81) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Decrease in other liabilities and accrued expenses | (1652) | (6902) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net cash provided by operating activities | 4886 | 244 |
| **Cash flows from investing activities:** |  |  |
| &nbsp;&nbsp;&nbsp;Purchase of property and equipment, net | (501) | (315) |
| &nbsp;&nbsp;&nbsp;Capitalized internal-use software costs |  | (237) |
| &nbsp;&nbsp;&nbsp;Increase in restricted deposits | (135) | (72) |
| &nbsp;&nbsp;&nbsp;&nbsp;Payment for business combinations, net of cash acquired | (9274) | (6503) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net cash used in investing activities | (9910) | (7127) |
| **Cash flows from financing activities:** |  |  |
| &nbsp;&nbsp;&nbsp;Proceeds from exercise of stock options | 562 | 43 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net cash provided by financing activities | 562 | 43 |
| Effect of exchange rates on cash and cash equivalents | 160 | (324) |
| Net decrease in cash and cash equivalents | (4302) | (7164) |
| Cash and cash equivalents, beginning of period | 63869 | 72421 |
| Cash and cash equivalents, end of period | $59567 | $65257 |

---

------

**Exhibit 99.1**

---

| | | |
|:---|:---|:---|
| **Supplemental disclosure of cash flow information:** | | |
| &nbsp;&nbsp;&nbsp;Interest received, net | $(355) | $(233) |
| &nbsp;&nbsp;&nbsp;Taxes paid | $133 | $297 |
| **Supplemental disclosure of non-cash financing activities:** |  |  |
| &nbsp;&nbsp;&nbsp;Additions to operating lease right-of-use assets and liabilities | $2728 | $— |
| &nbsp;&nbsp;&nbsp;Share-based compensation included in capitalized internal-use software | $— | $18 |
| &nbsp;&nbsp;&nbsp;Deferred proceeds from exercise of share options included in other current assets | $134 | $— |
| &nbsp;&nbsp;&nbsp;Deferred costs of property and equipment incurred during the period included in accounts payable | $112 | $60 |

---

------

**Exhibit 99.1**

**Reconciliation of Non-GAAP Financial Measures to the Most Directly Comparable GAAP Financial Measures**

**Reconciliation of GAAP gross profit to non-GAAP gross profit**

---

| | | |
|:---|:---|:---|
| | **Three Months Ended March 31,** | **Three Months Ended March 31,** |
| | **2025** | **2026** |
| | **(In thousands)** | **(In thousands)** |
| GAAP gross profit | $53117 | $58694 |
| Add: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Share-based compensation expenses | 249 | 180 |
| &nbsp;&nbsp;&nbsp;&nbsp;Retention payments related to business combinations | 19 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Amortization of intangible assets related to business combinations | 325 | 455 |
| **Non-GAAP gross profit** | $**53710** | $**59329** |
| **Non-GAAP gross margin** | **80%** | **80%** |

---

**Reconciliation of Loss from operations (GAAP) to Non-GAAP operating (loss) profit**

---

| | | |
|:---|:---|:---|
| | **Three Months Ended March 31,** | **Three Months Ended March 31,** |
| | **2025** | **2026** |
| | **(In thousands)** | **(In thousands)** |
| Loss from operations | $(9291) | $(4417) |
| Add: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Share-based compensation expenses | 5809 | 4676 |
| &nbsp;&nbsp;&nbsp;&nbsp;Retention payments related to business combinations | 1559 | 1181 |
| &nbsp;&nbsp;&nbsp;&nbsp;Amortization of intangible assets related to business combinations | 660 | 914 |
| **Non-GAAP operating (loss) profit** | $**(1263)** | $**2354** |
| **Non-GAAP operating margin** | **(2)%** | **3%** |

---

------

**Exhibit 99.1**

**Reconciliation of GAAP operating expenses to non-GAAP operating expenses**

---

| | | |
|:---|:---|:---|
| | **Three Months Ended March 31,** | **Three Months Ended March 31,** |
| | **2025** | **2026** |
| | **(In thousands)** | **(In thousands)** |
| GAAP research and development | $18004 | $19311 |
| Less: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Share-based compensation expenses | 1794 | 1703 |
| &nbsp;&nbsp;&nbsp;&nbsp;Retention payments related to business combinations | 271 | 532 |
| **Non-GAAP research and development** | $**15939** | $**17076** |
| **Non-GAAP research and development margin** | **24%** | **23%** |
| GAAP sales and marketing | $32156 | $30921 |
| Less: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Share-based compensation expenses | 1336 | 1104 |
| &nbsp;&nbsp;&nbsp;&nbsp;Retention payments related to business combinations | 844 | 226 |
| &nbsp;&nbsp;&nbsp;&nbsp;Amortization of intangible assets related to business combinations | 335 | 459 |
| **Non-GAAP sales and marketing** | $**29641** | $**29132** |
| **Non-GAAP sales and marketing margin** | **44%** | **39%** |
| GAAP general and administrative | $12248 | $12879 |
| Less: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Share-based compensation expenses | 2430 | 1689 |
| &nbsp;&nbsp;&nbsp;&nbsp;Retention payments related to business combinations | 425 | 423 |
| **Non-GAAP general and administrative** | $**9393** | $**10767** |
| **Non-GAAP general and administrative margin** | **14%** | **15%** |

---

------

**Exhibit 99.1**

**Reconciliation of Net loss (GAAP) to non-GAAP Net (loss) income**

---

| | | |
|:---|:---|:---|
| | **Three months ended March 31,** | **Three months ended March 31,** |
| | **2025** | **2026** |
| | **(In thousands, except for share and per share amounts)** | **(In thousands, except for share and per share amounts)** |
| GAAP Net loss | $(9259) | (6358) |
| Add: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Share-based compensation expenses | 5809 | 4676 |
| &nbsp;&nbsp;&nbsp;&nbsp;Retention payments related to business combinations | 1559 | 1181 |
| &nbsp;&nbsp;&nbsp;&nbsp;Amortization of intangible assets related to business combinations | 660 | 914 |
| &nbsp;&nbsp;&nbsp;&nbsp;Non-operating foreign exchange (losses) gains | (906) | 625 |
| &nbsp;&nbsp;&nbsp;&nbsp;Tax effect of adjustments, net | (245) | (26) |
| **Non-GAAP net (loss) income** | $**(2382)** | $**1012** |
| **Non-GAAP net (loss) income margin** | **(4)%** | **1%** |
| Weighted average number of ordinary shares - basic | 83135281 | 87275730 |
| Non-GAAP basic net income per share attributable to ordinary shareholders | $(0.03) | $0.01 |
| Weighted average number of ordinary shares - diluted | 83135281 | 89035119 |
| Non-GAAP diluted net income per share attributable to ordinary shareholders | $(0.03) | $0.01 |

---

------

**Exhibit 99.1**

**Reconciliation of Net cash provided by operating activities (GAAP) to Free cash flow and Normalized free cash flow**

---

| | | |
|:---|:---|:---|
| | **Three Months Ended March 31,** | **Three Months Ended March 31,** |
| | **2025** | **2026** |
| | **(In thousands)** | **(In thousands)** |
| Net cash provided by operating activities | $4886 | $244 |
| Purchases of property and equipment, net | (501) | (315) |
| Capitalized internal use software costs |  | (237) |
| **Free cash flow** | $**4385** | $**(308)** |
| Deferred payments related to business combinations | 485 | 6900 |
| **Normalized free cash flow** | $**4870** | $**6592** |

---

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