Exhibit 99.1

Ambarella, Inc. Announces Fourth Quarter and Fiscal Year 2026 Financial Results

February 26, 2026 —Santa Clara, Calif. – Ambarella, Inc. (NASDAQ: AMBA), an edge AI semiconductor company, today announced fourth quarter and full year fiscal 2026 financial results for the period ended January 31, 2026.

Financial results on a non-GAAP basis for the fourth quarter and full year fiscal 2026 are as follows:

Based on information available as of today, Ambarella is offering the following guidance for the first quarter of fiscal year 2027, ending April 30, 2026:

Ambarella reports gross margin, net income (loss) and earnings (losses) per share in accordance with GAAP and, additionally, on a non-GAAP basis. Non-GAAP financial information excludes the impact of stock-based compensation and acquisition-related costs adjusted for the associated tax impact, which includes the effect of any benefits or shortfalls recognized. A reconciliation of the GAAP to non-GAAP gross margin, net income (loss) and earnings (losses) per share for the periods presented, as well as a description of the items excluded from the non-GAAP calculations, is included in the financial statements portion of this press release.

Total cash, cash equivalents and marketable debt securities on hand at the end of the fourth quarter of fiscal 2026 was $312.6 million, compared with $295.3 million at the end of the prior quarter and $250.3 million at the end of the same quarter a year ago.

“Our F2026 revenue grew 37%, achieving an annual revenue record. Edge AI SoCs represented 80% of revenue, all of which is generated from a broad range of physical AI applications leveraging our deep learning AI accelerator. We expect total revenue growth of 10% to 15% in F2027,” said Fermi Wang, President & CEO. “We continue to build upon our edge AI leadership as we execute on new products, enhance our Cooper Development Platform, build an indirect sales channel and establish a semi-custom/custom ASIC model. Our edge AI leadership stands out, with approximately $1 billion in cumulative edge AI revenue, a portfolio of 12 AI SoCs covering a wide variety of edge AI use cases, support for up to 34 billion parameter models, more than 370 unique customer AI projects in production, and at least 200 different model architectures implemented successfully on our AI SoCs.”

Stock Repurchase

During the second quarter of fiscal year 2026, Ambarella’s Board of Directors approved an extension of the current share repurchase program for an additional twelve months ending June 30, 2026. In the fourth quarter of fiscal year 2026, the company did not repurchase shares. In the first quarter of fiscal year 2026, the company repurchased a total of 24,152 shares for total consideration of approximately $1.0 million. The repurchased shares were recorded as authorized but unissued shares. As of today, there is approximately $48.0 million available for repurchase under the company’s stock repurchase program. The repurchase program does not obligate the company to acquire any particular amount of ordinary shares, and it may be suspended at any time at the company’s discretion.

Quarterly Conference Call

Ambarella plans to hold a conference call at 4:30 p.m. Eastern Time / 1:30 p.m. Pacific Time today with Fermi Wang, President and Chief Executive Officer, and John Young, Chief Financial Officer, to discuss the fourth quarter of fiscal year 2026 results. A live and archived webcast of the call will be available on Ambarella’s website at http://www.ambarella.com/ for up to 30 days after the call.

About Ambarella

With an installed base of more than 42 million AI SoC units, Ambarella’s products are utilized in a wide variety of physical edge AI applications, spanning edge endpoint and edge infrastructure use cases including physical security, vehicle safety, telematics, autonomy, portable video, aerial drones, and other emerging robotic applications. Building on this footprint, Ambarella offers a full-stack edge AI platform, from highly optimized silicon and programmable software to AI agentic frameworks that coordinate perception, decision-making and control across devices. Ambarella’s low-power systems-on-chip (SoCs) integrate proprietary and highly efficient perception and deep learning neural network AI accelerators, enabling electronic systems to become more productive with partial or complete levels of machine autonomy. For more information, please visit www.ambarella.com.

“Safe harbor” statement under the Private Securities Litigation Reform Act of 1995

This press release contains forward-looking statements that are not historical facts and often can be identified by terms such as “outlook,” “projected,” “intends,” “will,” “estimates,” “anticipates,” “expects,” “believes,” “could,” “should,” or similar expressions, including the guidance for the first quarter of fiscal year 2027 ending April 30, 2026, and the comments of our CEO relating to our expectation of future revenue growth, including for the full year of fiscal 2027, our ability to sustain our edge AI R&D investment and new product development, the breadth of our opportunities in edge AI applications, and our ability to build an indirect sales channel and establish a semi-custom/custom ASIC model. The achievement or success of the matters covered by such forward-looking statements involves risks, uncertainties and assumptions. Our actual results could differ materially from those predicted or implied and reported results should not be considered as an indication of our future performance.

The risks and uncertainties referred to above include, but are not limited to, global economic and political conditions; changes in government policies, including possible trade tariffs and restrictions; revenue being generated from new customers or design wins, neither of which is assured; the commercial success of our customers’ products; our customers’ ability to manage their inventory requirements; our growth strategy; our ability to anticipate future market demands and future needs of our customers, particularly for AI inference applications; our ability to introduce, and to generate revenue from, new and enhanced solutions; our ability to develop, and to generate revenue from, new advanced technologies, such as AI functionality and advanced networks, including vision-language models and GenAI; our ability to retain and expand customer relationships and to achieve design wins; the expansion of our current markets and our ability to successfully enter new markets and applications, such as edge infrastructure; anticipated trends and challenges, including competition, in the markets in which we operate; risks associated with global health conditions and associated risk mitigation measures; our ability to effectively manage growth; our ability to retain key employees; and the potential for intellectual property disputes or other litigation.

Further information on these and other factors that could affect our financial results is included in the company’s Annual Report on Form 10-K for our 2025 fiscal year, which is on file with the Securities and Exchange Commission. Additional information will also be set forth in the company’s quarterly reports on Form 10-Q, annual reports on Form 10-K and other filings the company makes with the Securities and Exchange Commission from time to time, copies of which may be obtained by visiting the Investor Relations portion of our web site at www.ambarella.com or the SEC’s web site at www.sec.gov. Undue reliance should not be placed on the forward-looking statements in this release, which are based on information available to us on the date hereof. The results we report in our Annual Report on Form 10-K for the fiscal year ended January 31, 2026 could differ from the preliminary results announced in this press release.

Ambarella assumes no obligation and does not intend to update the forward-looking statements made in this press release, except as required by law.

Non-GAAP Financial Measures

The company has provided in this release non-GAAP financial information, including non-GAAP gross margin, net income (loss), and earnings (losses) per share, as a supplement to the consolidated financial statements, which are prepared in accordance with generally accepted accounting principles (“GAAP”). Management uses these non-GAAP financial measures internally in analyzing the company’s financial results to assess operational performance and liquidity. The company believes that both management and investors benefit from referring to these non-GAAP financial measures in assessing its performance and when planning, forecasting and analyzing future periods. Further, the company believes these non-GAAP financial measures are useful to investors because they allow for greater transparency with respect to key financial metrics that the company uses in making operating decisions and because the company believes that investors and analysts use them to help assess the health of its business and for comparison to other companies. Non-GAAP results are presented for supplemental informational purposes only for understanding the company’s operating results. The non-GAAP information should not be considered a substitute for financial information presented in accordance with GAAP, and may be different from non-GAAP measures used by other companies.

With respect to its financial results for the fourth quarter of fiscal year 2026, the company has provided below reconciliations of its non-GAAP financial measures to its most directly comparable GAAP financial measures. With respect to the company’s expectations for the first quarter of fiscal year 2027, a reconciliation of non-GAAP gross margin and non-GAAP operating expenses guidance to the closest corresponding GAAP measure is not available without unreasonable efforts on a forward-looking basis due to the high variability and low visibility with respect to the charges excluded from these non-GAAP measures. We expect the variability of the above charges to have a significant, and potentially unpredictable, impact on our future GAAP financial results.

The following tables present details of stock-based compensation and acquisition-related costs included in each functional line item in the consolidated statements of operations above:

The difference between GAAP and non-GAAP gross margin was 1.4% and 2.0%, or $1.4 million and $1.7 million, for the three months ended January 31, 2026 and 2025, respectively. The difference between GAAP and non-GAAP gross margin was 1.5% and 2.2%, or $6.0 million and $6.3 million, for the fiscal years ended January 31, 2026 and 2025, respectively. The differences were due to the effect of stock-based compensation and amortization of acquisition-related costs.

Contact:

Louis Gerhardy

408.636.2310

lgerhardy@ambarella.coml