Exhibit 99.1

Teradyne Reports Fourth Quarter and Fiscal Year 2022 Results

NORTH READING, Mass. – January 25, 2023 – Teradyne, Inc. (NASDAQ: TER) reported revenue of $732 million for the fourth quarter of 2022 of which $481 million was in Semiconductor Test, $100 million in System Test, $40 million in Wireless Test and $110 million in Industrial Automation (IA). GAAP net income for the fourth quarter was $172.3 million or $1.04 per diluted share. On a non-GAAP basis, Teradyne’s net income in the fourth quarter was $150.8 million, or $0.92 per diluted share, which excluded pension actuarial gains, acquired intangible asset amortization, restructuring and other charges, and included the related tax impact on non-GAAP adjustments.

“We delivered better than expected results in the fourth quarter on higher revenue and gross margins and lower expenses than planned,” said Teradyne CEO Mark Jagiela. “Increased shipments of our Eagle products serving the automotive and industrial chip markets combined with stronger demand for UR cobots in the quarter drove the improved results.”

Teradyne President Greg Smith added, “Balancing those positive Q4 results, we expect a step down in demand in our Semiconductor and Storage Test markets which will persist at least through the first half of the year as device manufacturers adjust their production to rebalance supply, demand, and inventory levels. This near-term slow-down is consistent with past industry cycles and we believe the long-term drivers of test demand remain firmly in place supported by expanding applications for complex semiconductor devices in compute, mobility, automotive and across the global economy.”

Teradyne’s Board of Directors declared a quarterly cash dividend of $0.11 per share, payable on March 17, 2023 to shareholders of record as of the close of business on February 17, 2023. The Board also authorized a $2 billion share repurchase program and the company expects to repurchase up to $500 million of its common stock in 2023.

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Guidance for the first quarter of 2023 is revenue of $550 million to $630 million, with GAAP net income of $0.26 to $0.49 per diluted share and non-GAAP net income of $0.28 to $0.52 per diluted share. Non-GAAP guidance excludes acquired intangible asset amortization and includes the related tax impact on non-GAAP adjustments.

Webcast

A conference call to discuss the fourth quarter results, along with management’s business outlook, will follow at 8:30 a.m. ET, Thursday, January 26. Interested investors should access the webcast at www.teradyne.com and click on “Investors” at least five minutes before the call begins. Presentation materials will be available starting at 8:30 a.m. ET. A replay will be available on the Teradyne website at https://investors.teradyne.com/events-presentations.

Non-GAAP Results

In addition to disclosing results that are determined in accordance with GAAP, Teradyne also discloses non-GAAP results of operations that exclude certain income items and charges and discloses certain revenue at constant currency. These results are provided as a complement to results provided in accordance with GAAP. Non-GAAP income from operations and non-GAAP net income exclude acquired intangible assets amortization, restructuring and other, pension actuarial gains and losses, losses on convertible debt conversions, non-cash convertible debt interest, discrete income tax adjustments, and includes the related tax impact on non-GAAP adjustments. GAAP requires that these items be included in determining income from operations and net income. Non-GAAP income from operations, non-GAAP net income, non-GAAP income from operations as a percentage of revenue, non-GAAP net income as a percentage of revenue, and non-GAAP net income per share are non-GAAP performance measures presented to provide meaningful supplemental information regarding Teradyne’s baseline performance before gains, losses or other charges that may not be indicative of Teradyne’s current core business or future outlook. Constant currency revenue excludes the impact of changes in foreign currency exchange rates, which are required by GAAP. These non-GAAP performance measures are used to make operational decisions, to determine employee compensation, to forecast future operational results, and for comparison with Teradyne’s business plan, historical operating results and the operating results of Teradyne’s competitors. Non-GAAP diluted shares include the impact of Teradyne’s call option on its shares. Management believes each of these non-GAAP performance measures provides useful supplemental information for investors, allowing greater transparency to the information used by management in its operational decision making and in the review of Teradyne’s financial and operational performance, as well as facilitating meaningful comparisons of Teradyne’s results in the current period compared with those in prior and future periods. A reconciliation of each available GAAP to non-GAAP financial measure discussed in this press release is contained in the attached exhibits and on the Teradyne website at www.teradyne.com by clicking on “Investor Relations” and then selecting “Financials” and the “GAAP to Non-GAAP Reconciliation” link. The non-GAAP performance measures discussed in this press release may not be comparable to similarly titled measures used by other companies. The presentation of non-GAAP measures is not meant to be considered in isolation, as a substitute for, or superior to, financial measures or information provided in accordance with GAAP.

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About Teradyne

Teradyne (NASDAQ:TER) brings high-quality innovations such as smart devices, life-saving medical equipment and data storage systems to market, faster. Its advanced test solutions for semiconductors, electronic systems, wireless devices and more ensure that products perform as they were designed. Its Industrial Automation offerings include collaborative and mobile robots that help manufacturers of all sizes improve productivity and lower costs. In 2022, Teradyne had revenue of $3.2 billion and today employs over 6,500 people worldwide. For more information, visit teradyne.com. Teradyne^® is a registered trademark of Teradyne, Inc. in the U.S. and other countries.

Safe Harbor Statement

This release contains forward-looking statements regarding Teradyne’s future business prospects, the impact of the global pandemic of the novel strain of the coronavirus (COVID-19), results of operations, market conditions, earnings per share, the impact of supply chain conditions on the business, customer sales expectations, the payment of a quarterly dividend, the repurchase of Teradyne common stock pursuant to a share repurchase program, sanctions against Russia and Russian companies, and the impact of U.S. and Chinese export and tariff laws, including new regulations published by the U.S. Department of Commerce on October 7, 2022. Such statements are based on the current assumptions and expectations of Teradyne’s management and are neither promises nor guarantees of future performance, events, customer sales, supply chain conditions or improvements, earnings per share, use of cash, payment of dividends, repurchases of common stock, payment of the senior convertible notes, the impact of the COVID-19 pandemic, the impact of cost increases from inflation on materials, employee wages, third party labor, and contract manufacturing, sanctions against Russia and Russian companies, the impact of any tariffs or export controls imposed by the U.S. or China, compliance with trade protection measures or export restrictions, the impact of U.S. Department of Commerce or other government agency regulations relating to Huawei, HiSilicon and other customers or potential customers, the impact of U.S. Department Commerce export control regulations for certain U.S. products and technology sold to military end users or for military end-use in China, Russia and Venezuela, or the impact of regulations published by the U.S. Department of Commerce relating to the export of semiconductors and semiconductor manufacturing equipment destined to certain end users and for certain end uses in China. There can be no assurance that management’s estimates of Teradyne’s future results or other forward-looking statements will be achieved. Specifically, Teradyne’s 2026 earnings model is aspirational and includes many assumptions. There can be no assurance that these assumptions will be accurate or that model results will be achieved. As set forth below, there are many factors that could cause our 2026 earnings model and actual results to differ materially from those presently expected. Additionally, the current dividend and share repurchase programs may be modified, suspended or discontinued at any time.

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On October 7, 2022, the U.S. Department of Commerce published new regulations restricting the export to China of advanced semiconductors, supercomputer technology, equipment for the manufacturing of advanced semiconductors and components and technology for the manufacturing in China of certain semiconductor manufacturing equipment. The new restrictions are lengthy and complex. Teradyne continues to assess the impact of these regulations on its business. At this time, the Company has determined that restrictions on the sale of semiconductor testers in China to test certain advanced semiconductors will impact Teradyne’s sales to certain companies in China. Several multinational companies manufacturing these advanced semiconductors in China have obtained one-year licenses allowing suppliers such as Teradyne to continue to provide testers to the facilities operated by these companies. We expect that other companies manufacturing advanced semiconductors in China will not receive licenses, thereby restricting Teradyne’s ability to provide testers to the facilities operated by these companies that do not receive a license. The Company also is assessing the filing of license requests to sell to and support certain customers in China for certain end uses that, if granted, may reduce the impact of these restrictions on the Company’s business. At this time, Teradyne does not know the impact these end user and end use restrictions will have on its business in China or on future revenues. In addition to the specific restrictions impacting Teradyne’s business, the regulations may have an adverse impact on certain actual or potential customers and on the global semiconductor industry. To the extent the regulations impact actual and potential customers or disrupt the global semiconductor industry, Teradyne’s business and revenues will be adversely impacted.

The Company also has determined that the restrictions on the export of certain US origin components and technology for use in the development and production in China of certain semiconductor manufacturing equipment impact its manufacturing and development operations in China. Teradyne has received a temporary authorization from the Department of Commerce allowing the Company to continue its manufacturing and development operations in China until the Department of Commerce issues a license to replace this temporary authorization. The Company cannot assess the likelihood or timing of receiving this license. In addition to requesting a license, the Company is implementing procedures for minimizing the impact of these new regulations, but there is no assurance that these procedures will succeed.

Following Russia’s invasion of Ukraine in February 2022, the U.S. and other countries imposed significant sanctions against the Russian government and many Russian companies and individuals. Although Teradyne does not have significant operations in Russia, the sanctions could impact Teradyne’s business in other countries and could have a negative impact on the Company’s supply chain, either of which could adversely affect Teradyne’s business and financial results.

COVID-19 has resulted in authorities implementing numerous measures to try to contain the virus, such as travel bans and restrictions, quarantines, government vaccination mandates and other government regulations. These measures have impacted and may further impact Teradyne’s workforce and operations, the operations of its customers, and those of its contract manufacturers and suppliers. As Teradyne implements measures to comply with additional regulations, the Company may experience increased compliance costs, increased risk of non-compliance and increased risk of employee attrition.

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The COVID-19 pandemic has adversely impacted the Company’s results of operations, including increased costs company-wide and constraints within the Company’s supply chain. The Company cannot accurately estimate the amount of the impact on Teradyne’s 2022 financial results and to its future financial results. The COVID-19 outbreak has significantly increased economic and demand uncertainty in Teradyne’s markets. This uncertainty resulted in a significant decrease in demand for certain Teradyne products and could continue to impact demand for an uncertain period of time. The spread of COVID-19 has caused Teradyne to modify its business practices (including employee travel, employees working remotely, and cancellation of in person participation in meetings, events and conferences) and the Company may take further actions as may be required by government authorities or that it determines are in the best interests of its employees, customers, contract manufacturers and suppliers. There is uncertainty that such measures will be sufficient to mitigate the risks posed by the virus, and Teradyne’s ability to perform critical functions could be impacted. The degree to which COVID-19 continues to impact Teradyne’s results will depend on future developments, which are highly uncertain and cannot be predicted, including, but not limited to, the duration and continued spread of the virus, its severity, the actions to contain the virus or the availability and impact of vaccines in countries where the Company does business, and how quickly and to what extent normal economic and operating conditions can resume.

Important factors that could cause actual results, the 2026 earnings model, earnings per share, use of cash, dividend payments, repurchases of common stock, or payment of the senior convertible notes to differ materially from those presently expected include: conditions affecting the markets in which Teradyne operates; decreased or delayed product demand from one or more significant customers; development, delivery and acceptance of new products; the ability to grow the Industrial Automation business; increased research and development spending; deterioration of Teradyne’s financial condition; the continued impact of the COVID-19 pandemic and related government responses on the market and demand for Teradyne’s products, on its contract manufacturers and supply chain, and on its workforce; the impact of the global semiconductor supply shortage on our supply chain and contract manufacturers; the consummation and success of any mergers or acquisitions; the impact of cost increases from inflation on materials, employee wages, third party labor, and contract manufacturing; unexpected cash needs; insufficient cash flow to make required payments and pay the principal amount on the senior convertible notes; the business judgment of the board of directors that a declaration of a dividend or the repurchase of common stock is not in the Company’s best interests; additional U.S. tax regulations or IRS guidance; the impact of any tariffs or export controls imposed by the U.S. or China; compliance with trade protection measures or export restrictions; the impact of U.S. Department of Commerce or other government agency regulations relating to Huawei, HiSilicon and other customers or potential customers; the impact of U.S. Department Commerce export control regulations for certain U.S. products and technology sold to military end users or for military end-use in China, Russia and Venezuela; sanctions imposed against the Russian government and certain Russian companies and individuals by the U.S., and other countries; the impact of regulations published by the U.S. Department of Commerce relating to semiconductors and semiconductor

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manufacturing equipment destined for certain end uses in China; and other events, factors and risks disclosed in filings with the SEC, including, but not limited to, the “Risk Factors” sections of Teradyne’s Annual Report on Form 10-K for the fiscal year ended December 31, 2021 and Quarterly Report on Form 10-Q for the fiscal quarter ended October 2, 2022. The forward-looking statements provided by Teradyne in this press release represent management’s views as of the date of this release. Teradyne anticipates that subsequent events and developments may cause management’s views to change. However, while Teradyne may elect to update these forward-looking statements at some point in the future, Teradyne specifically disclaims any obligation to do so. These forward-looking statements should not be relied upon as representing Teradyne’s views as of any date subsequent to the date of this release.

TERADYNE, INC. REPORT FOR FOURTH FISCAL QUARTER OF 2022

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

CONDENSED CONSOLIDATED BALANCE SHEETS (In thousands)

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (In thousands)

GAAP to Non-GAAP Earnings Reconciliation

(In millions, except per share amounts)

GAAP to Non-GAAP Reconciliation of First Quarter 2023 guidance: