Exhibit 99.1

Synaptics Reports Fourth Quarter Fiscal 2021 Results

Q4’21 Financial Results and Recent Business Highlights

SAN JOSE, Calif., – August 5, 2021 – Synaptics Incorporated (Nasdaq: SYNA), today reported financial results for its fourth fiscal quarter and fiscal year 2021 ended June 26, 2021.

Net revenue for the fourth quarter of fiscal 2021 was $327.8 million. GAAP net income for the fourth quarter of fiscal 2021 was $19.0 million, or $0.48 per diluted share. Non-GAAP net income for the fourth quarter of fiscal 2021 was $86.6 million, or $2.18 per diluted share.

For the full year fiscal 2021, net revenue of $1.34 billion was flat to the prior year of $1.33 billion. Gross margin for the Company’s products continued to expand with GAAP gross margin for the fiscal year 2021 of 45.6 percent compared to 40.7 percent in the prior year; and non-GAAP gross margin of 53.6 percent compared to 43.7 percent in the prior year. GAAP net income for the recently completed fiscal year was $79.6 million or $2.08 per diluted share compared to the prior year of $118.8 million or $3.41 per diluted share. Non-GAAP net income for the recently complete fiscal year was $316.4 million or $8.26 per diluted share compared to the prior year of $207.2 million or $5.95 per diluted share.

“Synaptics completed fiscal year 2021 with terrific results, including several financial records for the company, most significant of which were record GAAP and non-GAAP gross margins in the June quarter. In addition, we made progress throughout the year tilting our portfolio toward our IoT products which now represent more than 50% of our overall revenue,” said Michael Hurlston, Synaptics’ President and CEO.

Business Outlook

Dean Butler, Chief Financial Officer of Synaptics, added, “Entering our first quarter of the new fiscal year, we expect to maintain our gross margin strength as ramping design wins fuel our continued IoT growth trajectory. Our backlog remains strong with our customer demand continuing to outpace supply availability; we have once again factored in the current semiconductor supply chain constraints into our September quarter guidance.”

For the first quarter of fiscal 2022, the company expects:

Earnings Call and Supplementary Materials

The Synaptics fourth quarter and fiscal 2021 teleconference and webcast is scheduled to begin at 2:00 p.m. PT (5:00 p.m. ET), on Thursday, August 5, 2021, during which the company will provide forward-looking information.

Speakers:

To participate on the live call, analysts and investors should dial 833-614-1539 (conference ID: 9299775). Supplementary slides, a copy of the prepared remarks, and a live and archived webcast of the conference call will be accessible from the “Investor Relations” section of the company’s Website at https://investor.synaptics.com/.

About Synaptics Incorporated:

Synaptics (Nasdaq: SYNA) is changing the way humans engage with connected devices and data, engineering exceptional experiences throughout the home, at work, in the car and on the go. Synaptics is the partner of choice for the world’s most innovative intelligent system providers who are integrating

multiple experiential technologies into platforms that make our digital lives more productive, insightful, secure and enjoyable. These customers are combining Synaptics’ differentiated technologies in touch, display and biometrics with a new generation of advanced connectivity and AI-enhanced video, vision, audio, speech and security processing. Follow Synaptics on LinkedIn, Twitter and Facebook, or visit synaptics.com.

Use of Non-GAAP Financial Information

In evaluating its business, Synaptics considers and uses Non-GAAP Net Income, which we define as net income excluding share-based compensation, acquisition related costs, and certain other non-cash or recurring and non-recurring items the company does not believe are indicative of its core operating performance as a supplemental measure of operating performance. Non-GAAP Net Income is not a measurement of the company’s financial performance under GAAP and should not be considered as an alternative to GAAP net income. The company presents Non-GAAP Net Income because it considers it an important supplemental measure of its performance since it facilitates operating performance comparisons from period to period by eliminating potential differences in net income caused by the existence and timing of share-based compensation charges, acquisition related costs, and certain other non-cash or recurring and non-recurring items. Non-GAAP Net Income has limitations as an analytical tool and should not be considered in isolation or as a substitute for the company’s GAAP net income. The principal limitations of this measure are that it does not reflect the company’s actual expenses and may thus have the effect of inflating its net income and net income per share as compared to its operating results reported under GAAP. In addition, the company presents components of Non-GAAP Net Income, such as Non-GAAP Gross Margin and Non-GAAP operating expenses, and Non-GAAP operating margin, for similar reasons.

As presented in the “Reconciliation of GAAP Financial Measures to Non-GAAP Financial Measures” tables that follow, Non-GAAP Net Income and each of the other Non-GAAP financial measures excludes one or more of the following items:

Acquisition/divestiture related costs

Acquisition/divestiture related costs primarily consist of:

These acquisition/divestiture related costs are not factored into the company’s evaluation of its ongoing business operating performance or potential acquisitions, as they are not considered as part of the company’s principal operations. Further, the amount of these costs can vary significantly from period to period based on the terms of an earn-out arrangement, revisions to assumptions that went into developing the estimate of the contingent consideration associated with an earn-out arrangement, the size and timing of an acquisition/divestiture, the lives assigned to the acquired intangible assets, and the maturity of the business acquired. Excluding acquisition/divestiture related costs from Non-GAAP measures provides investors with a basis to compare Synaptics against the performance of other companies without the variability and potential earnings volatility associated with purchase accounting and acquisition/divestiture related items.

Share-based compensation

Share-based compensation expense relates to employee equity award programs and the vesting of the underlying awards, which includes stock options, deferred stock units, market stock units, performance stock units, phantom stock units and the employee stock purchase plan. Share-based compensation settled with stock, which includes stock options, deferred stock units, market stock units, performance stock units and the employee stock purchase plan, is a non-cash expense, while share-based compensation settled with cash, which includes phantom stock units, is a cash expense. Settlement of all employee equity award programs whether settled with cash or stock varies in amount from period to period and is dependent on market forces that are often beyond the company’s control. As a result, the company excludes share-based compensation from its internal operating forecasts and models. The company believes that Non-GAAP measures reflecting adjustments for share-based compensation provide investors with a basis to compare the company’s principal operating performance against the performance of peer companies without the variability created by share-based compensation resulting from the variety of equity-linked compensatory awards used by other companies and the varying methodologies and assumptions used.

Amortization of prepaid development costs

Amortization of prepaid development costs represents the amortization of the estimated cost to develop certain future roadmap devices designed in advance process nodes in connection with an acquisition. The amortization of prepaid development costs represents a non-cash charge. As a result, the company excludes amortization of prepaid development costs from its internal operating forecasts and models when evaluating its ongoing business performance. The company believes that Non-GAAP measures reflecting adjustments for amortization of prepaid development costs provide investors with a basis to compare the company’s principal operating performance against the performance of other companies without the variability created by the amortization of prepaid development costs.

Restructuring costs

Restructuring costs consist primarily of employee severance and office closure costs, including the reversal of such costs. These costs are cash-based and designed to address cost structure inefficiencies. As a result, the company excludes restructuring costs from its internal operating forecasts and models when evaluating its ongoing business performance. The company believes that Non-GAAP measures reflecting adjustments for restructuring costs provide investors with a basis to compare the company’s principal operating performance against the performance of other companies without the variability created by restructuring costs designed to address cost structure inefficiencies in its business.

Retention program costs

Retention program costs consist of employee retention arrangement costs designed to ensure operational continuity and support through employee retention. These costs are cash-based and designed to ensure retention of certain key engineering and management employees as we transition the company through senior level management and product focus changes. As a result, the company excludes retention program costs from its internal operating forecasts and models when evaluating its ongoing business performance. The company believes that Non-GAAP measures reflecting adjustments for retention program costs provide investors with a basis to compare the company’s principal operating performance against the performance of other companies without the variability created by retention program costs designed to ensure operational continuity and support through employee retention during a transition of senior level management and product focus changes.

In-process research and development

In-process research and development represent research and development that is not yet complete. In the context of a business combination, in-process research and development costs will be capitalized and subsequently amortized over an estimated life or impaired. In the context of an asset acquisition, in-process research and development costs will be expensed immediately unless there is an alternative future use. From time to time, we may acquire in-process research and development assets as part of an asset acquisition. If determined to have no alternative future use, these in-process research and development assets will be expensed in the period acquired. As a result, the company excludes in-process research and development costs from its internal operating forecasts and models when evaluating its ongoing business performance. The company believes that Non-GAAP measures reflecting adjustments for in-process research and development costs provide investors with a basis to compare the company’s principal operating performance against the performance of other companies without the variability created by in-process research and development costs.

Gain on sale of audio technology assets

Gain on sale of audio technology assets, includes the sale of certain intangible assets related to our audio products. From time to time, we may enter into a transaction to sell certain intangible assets from our intangible asset portfolio that we believe can be monetized in a manner that does not impact our product roadmap. Excluding the gain on sale of audio technology assets from our Non-GAAP measures provides

investors with a basis to compare the company’s principal operating performance against the performance of other companies without the variability created by infrequent transactions that are not considered to be part of our core business.

Other non-cash items

Other non-cash items include non-cash amortization of debt discount and issuance costs. These items are excluded from Non-GAAP results as they are non-cash. Excluding other non-cash items from Non-GAAP measures provides investors with a basis to compare Synaptics against the performance of other companies without the variability associated with other non-cash items.

Equity investment loss

Equity investment loss represents an adjustment in the book value of an equity investment in a minority owned company. The equity investment loss is a non-cash item. As a result, the company excludes equity investment loss from its internal operating forecasts and models when evaluating its ongoing business performance. The company believes that Non-GAAP measures reflecting adjustments for equity investment loss provide investors with a basis to compare the company’s principal operating performance against the performance of other companies without the variability created by non-cash items.

Non-GAAP tax adjustments

The company forecasts its long-term Non-GAAP tax rate in order to provide investors with improved long-term modeling accuracy and consistency across financial reporting periods by eliminating the effects of certain items in our Non-GAAP net income and Non-GAAP net income per share, including the type and amount of share-based compensation, the taxation of post-acquisition intercompany intellectual property cross-licensing or transfer transactions, and the impact of other acquisition items that may or may not be tax deductible. The company intends to evaluate its long-term Non-GAAP tax rate annually for significant events, including material tax law changes in the major tax jurisdictions in which the company operates, corporate organizational changes related to acquisitions or tax planning opportunities, and substantive changes in our geographic earnings mix.

Forward-Looking Statements

This press release contains forward-looking statements that are subject to the safe harbors created under the Securities Act of 1933, as amended, and the Securities Exchange Act of 1934, as amended. Forward-looking statements give our current expectations and projections relating to our financial condition, results of operations, plans, objectives, future performance and business, including our expectations regarding the potential impacts on our business of the COVID-19 pandemic, and can be identified by the fact that they do not relate strictly to historical or current facts. Such forward-looking statements may include words such as “expect,” “anticipate,” “intend,” “believe,” “estimate,” “plan,” “target,” “strategy,” “continue,” “may,” “will,” “should,” variations of such words, or other words and terms of

similar meaning. All forward-looking statements reflect our best judgment and are based on several factors relating to our operations and business environment, all of which are difficult to predict and many of which are beyond our control. Such factors include, but are not limited to, the risk that our business, results of operations and financial condition and prospects may be materially and adversely affected by the COVID-19 pandemic and that significant uncertainties remain related to the impact of COVID-19 on our business operations and future results, including our first quarter fiscal 2022 business outlook; global supply chain disruptions and component shortages that are currently affecting the semiconductor industry as a whole; the risks as identified in the “Risk Factors,” “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and “Business” sections of our most recent Annual Report on Form 10-K and our most recent Quarterly Report on Form 10-Q (including that the impact of the COVID-19 pandemic may also exacerbate the risks discussed therein); and other risks as identified from time to time in our Securities and Exchange Commission reports. Forward-looking statements are based on information available to us on the date hereof, and we do not have, and expressly disclaim, any obligation to publicly release any updates or any changes in our expectations, or any change in events, conditions, or circumstances on which any forward-looking statement is based. Our actual results and the timing of certain events could differ materially from the forward-looking statements. These forward-looking statements do not reflect the potential impact of any mergers, acquisitions, or other business combinations that had not been completed as of the date of this release.

For more information contact:

Synaptics Investor Relations

IR@synaptics.com

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