0000817720-25-000073 | 10-K | XBRL Viewer

Share-Based Compensation

12 Months Ended

Jun. 28, 2025

Share-Based Payment Arrangement [Abstract]

Share-Based Compensation Plans

As of the end of fiscal 2025, we had the following equity compensation plans under which equity securities were authorized for issuance to our employees and directors:

2025 Inducement Equity Plan

Effective January 27, 2025, we adopted the 2025 Inducement Equity Plan (“2025 Inducement Plan”) which provides for the issuance of option or appreciation rights, restricted stock units (“RSU”) or dividend equivalents to our employees. Awards granted under the 2025 Inducement Plan will not exceed 1,700,000 shares of common stock. As of June 2025, 693,494 shares of our common stock are reserved for issuance under the 2025 Inducement Plan. Equity awards granted under the 2025 Inducement Plan generally vest ratably over two years from the vesting commencement date.

Amended and Restated 2019 Equity and Incentive Compensation Plan

Our Synaptics Incorporated Amended and Restated 2019 Equity and Incentive Compensation Plan (“2019 Incentive Plan”) provides for the grant of equity-based compensation in the form of stock options, stock appreciation rights, RSUs, cash incentive awards, shares with performance conditions (“PSU”) or market-based conditions (“MSU”) and other stock-based awards. As of June 2025, 2,675,325 shares of our common stock are reserved for issuance under the 2019 Incentive Plan. The performance metrics of PSU and MSU awards can be financial performance and/or market-based conditions. Each PSU and MSU award reflects a target number of shares that may be issued to an award recipient before adjusting based on our financial performance and/or market-based conditions. The actual number of shares that an award recipient receives at the end of the period may range from 0% to 300% of the target number of shares granted, depending upon the achievement of the performance target designated by each individual award.

Our 2025 Inducement Plan and 2019 Incentive Plan are collectively referred to as “Stock Compensation Plans.”

Restricted Stock Units

RSUs granted generally vest ratably over two to four years from the vesting commencement date. RSU activity, including RSUs granted, delivered and forfeited in fiscal 2025, and the balance and aggregate intrinsic value of RSUs as of the end of fiscal 2025 were as follows:


	RSU Awards Outstanding	Average Grant Date Fair Value
Balance as of June 2024	1,620,006	$	101.4
Granted	2,694,317	$	60.2
Vested	(882,655)	$	103.0
Forfeited	(450,388)	$	84.4
Balance as of June 2025	2,981,280	$	66.3

At the end of fiscal 2025, the aggregate intrinsic value of RSUs expected to vest was $193.1 million. Our closing stock price of $64.78 on the last day of trading in fiscal 2025 was used to calculate the intrinsic value for the RSUs.

The unrecognized share-based compensation cost for RSUs granted under Stock Compensation Plans was $157.4 million as of the end of fiscal 2025, which will be recognized over a weighted average period of 1.8 years.

Market Stock Units

MSU activity, including MSUs granted, delivered and forfeited in fiscal 2025, and the balance and aggregate intrinsic value of MSUs as of the end of fiscal 2025 were as follows:


	MSU Awards Outstanding	Weighted Average Grant Date Fair Value
Balance at June 2024	200,513	$	249.2
Granted	120,765	$	113.5
Vested	(55,603)	$	195.9
Forfeited	(160,700)	$	211.4
Balance at June 2025	104,975	$	179.1

At the end of fiscal 2025, the aggregate intrinsic value of MSUs expected to vest was $6.8 million. Our closing stock price of $64.78 on the last day of trading in fiscal 2025 was used to calculate the intrinsic value for the MSUs. The unrecognized share-based compensation cost of our outstanding MSUs was $6.4 million as of the end of fiscal 2025, which will be recognized over a weighted average period of 0.9 years.

The fair value of each MSU granted from our plans estimated at the date of grant using the Monte Carlo simulation model, assuming no expected dividends and the following assumptions:


	2025		2024		2023
Expected volatility of company	52.4	%	52.6	%	55.2	%
Expected volatility of Index	14.9%-213.7%		11.5%-762.5%		17.9% - 320.7%
Correlation coefficient	0.73		0.69		0.61
Expected life in years	2.87		2.87		2.87
Risk-free interest rate	3.86	%	4.65	%	3.24	%
Fair value per award	$71.14 - $182.80		$159.79 - $268.61		$218.15- $438.24

Performance Stock Units

PSU activity, including PSUs granted, delivered and forfeited in fiscal 2025, and the balance and aggregate intrinsic value of PSUs as of the end of fiscal 2025 were as follows:


	PSU Awards Outstanding	Weighted Average Grant Date Fair Value
Balance at June 2024	265,362	$	99.3
Granted	205,025	$	78.3
Vested	(17,757)	$	127.9
Forfeited	(261,244)	$	93.9
Balance at June 2025	191,386	$	81.5

We value PSUs using the aggregate intrinsic value on the grant date and amortize the compensation expense over the three-year service period on a ratable basis, dependent upon the probability of meeting the performance measures. The PSU awards outstanding balance at June 2025 is based on the target grant quantity and does not include any performance adjustment of shares for completed performance periods.

At the end of fiscal 2025, the aggregate intrinsic value of PSUs expected to vest was $12.4 million. Our closing stock price of $64.78 on the last day of trading in fiscal 2025 was used to calculate the intrinsic value for the PSUs.

The unrecognized share-based compensation cost of our outstanding PSUs was $8.9 million as of June 2025, which will be recognized over a weighted average period of 0.8 years.

Employee Stock Purchase Plan

Our employee stock purchase plan (“2019 ESPP”) allows employees to designate up to 15% of their base compensation, subject to legal restrictions and limitations, to purchase shares of common stock at 85% of the lesser of the fair market value at the beginning of the offering period or the exercise date. Under the 2019 ESPP, the offering period extends for up to one year and includes two exercise dates occurring at six-month intervals. Under the terms of our 2019 ESPP, if the fair market value at an exercise date is less than the fair market value at the beginning of the offering period, the current offering period will terminate and a new offering period will commence. As of June 2025, 449,103 shares of our common stock are reserved for issuance under the 2019 ESPP Plan.

Shares purchased, weighted average purchase price, cash received and the aggregate intrinsic value for employee stock purchase plan purchases were as follows:


	2025		2024		2023
Shares purchased	237,508		211,425		172,044
Weighted average purchase price	$	58.53	$	74.22	$	91.88
Cash received	$	13.9	$	15.7	$	15.8
Aggregate intrinsic value	$	2.5	$	4.1	$	2.8

The fair value of each award granted under our 2019 ESPP was based on the Black-Scholes option pricing model. The fair value per award for fiscal 2025, 2024 and 2023 was $22.58, $34.54 and $40.70, respectively. Unrecognized share-based compensation costs for awards granted under our 2019 ESPP at the end of fiscal 2025 were $4.9 million that will be amortized over the next 8 months.

Stock-Based Compensation Expense

Share-based compensation and the related tax benefit for our stock-based awards recognized in the accompanying consolidated statements of income were as follows:


	2025		2024		2023
Cost of revenue	$	(1.7)	$	4.1	$	4.0
Research and development	68.8		61.0		52.7
Selling, general and administrative	45.7		53.7		65.9
Total	$	112.8	$	118.8	$	122.6
Income tax benefit on share-based compensation	$	8.4	$	8.6	$	13.2

Net Income Per Share

12 Months Ended

Jun. 28, 2025

Earnings Per Share [Abstract]

Net Income Per Share

The computation of basic and diluted net income per share was as follows:


	2025		2024		2023
Numerator:
Net (loss)/income	$	(47.8)	$	125.6	$	73.6
Denominator:
Shares, basic	39.3		39.2		39.6
Effect of dilutive share-based awards and convertible notes	0.0		0.5		0.6
Shares, diluted	39.3		39.7		40.2
Net (loss)/income per share:
Basic	$	(1.22)	$	3.20	$	1.86
Diluted	$	(1.22)	$	3.16	$	1.83

The following potentially dilutive securities were excluded from the computation of diluted net (loss)/income per share as their effect would have been antidilutive:


	2025	2024	2023
Share-based awards	3.3	0.2	0.7
Convertible senior notes	4.5	—	—
Total	7.8	0.2	0.7

Our basic net income per share amounts for each period presented have been computed using the weighted average number of shares of common stock outstanding. Our diluted net income per share amounts for each period presented include the weighted average effect of potentially dilutive shares. We used the “treasury stock” method to determine the dilutive effect of outstanding share-based awards. We used the if-converted method for calculating any potential dilutive effect of our 2031 Notes.

Cash, Cash Equivalents and Short-Term Investments

12 Months Ended

Jun. 28, 2025

Cash, Cash Equivalents, and Short-Term Investments [Abstract]

Cash, Cash Equivalents and Short-Term Investments

Cash, cash equivalents and short-term investments were as follows:


	2025						2024
	Amortized Cost		Gross unrealized gain/(loss)		Fair Value		Amortized Cost		Gross unrealized gain/(loss)		Fair Value
Cash	$	360.7	$	—	$	360.7	$	238.4	$	—	$	238.4
Cash equivalents:
Money market funds	16.7		—		16.7		600.4		—		600.4
Certificates of deposit	14.1		—		14.1		38.1		—		38.1
Total cash and cash equivalents	$	391.5	$	—	$	391.5	$	876.9	$	—	$	876.9
Short-term investments:
Certificates of deposit	$	61.0	$	—	$	61.0	$	—	$	—	$	—

As of June 2025, all of our short-term investments mature within one year.

Restructuring Activities (Tables)

12 Months Ended

Jun. 28, 2025

Restructuring and Related Activities [Abstract]

Schedule of Restructuring Cost and Liability

A summary of restructuring costs as presented in our consolidated statements of operations is as follows:


	2025		2024
Employee severance and related costs	$	15.5	$	10.5
Write-off of assets:
Property and equipment	1.4		—
	$	16.9	$	10.5

The following table presents the beginning and ending restructuring liability balances for each restructuring action:



	Fiscal 2023 and earlier Restructuring		Fiscal 2024 Restructuring		Fiscal 2025 Restructuring		Total
Balance, June 2023	$	1.4	$	—	$	—	$	1.4
Charges	—		10.5		—		10.5
Payments	(1.4)		(9.1)		—		(10.5)
Balance, June 2024	—		1.4		—		1.4
Charges (1)	—		0.5		15.0		15.5
Payments	—		(1.9)		(15.0)		(16.9)
Balance, June 2025	$	—	$	—	$	—	$	—

(1) Write-off of property and equipment charges of $1.4 million recognized in fiscal 2025 are not included in the restructuring liability balance above.

Business Combinations and Asset Acquisitions - Schedule of Fair Values of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions	Jun. 28, 2025	Mar. 29, 2025	Jan. 30, 2025	Jun. 29, 2024	Jun. 24, 2023
Business Combination [Line Items]
Goodwill	$ 872.3			$ 816.4	$ 816.4
Broadcom Business Acquisition
Business Combination [Line Items]
Long-term assets for product roadmap intellectual properties	96.8
Acquired intangible assets	85.2		$ 85.2
Goodwill	52.3		$ 52.3
Deferred tax asset	11.3
Property and equipment, net	2.3
Net assets acquired	247.9
Broadcom Business Acquisition \| Previously reported as of March 2025
Business Combination [Line Items]
Long-term assets for product roadmap intellectual properties		$ 96.8
Acquired intangible assets		85.2
Goodwill		52.3
Deferred tax asset		11.3
Property and equipment, net		0.0
Net assets acquired		$ 245.6
Broadcom Business Acquisition \| Purchase Price Allocation Measurement Period Adjustment
Business Combination [Line Items]
Long-term assets for product roadmap intellectual properties	0.0
Acquired intangible assets	0.0
Goodwill	0.0
Deferred tax asset	0.0
Property and equipment, net	2.3
Net assets acquired	$ 2.3

Restructuring Activities - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 28, 2025	Jun. 29, 2024	Jun. 24, 2023
Restructuring Cost And Reserve [Line Items]
Restructuring charges	$ 16.9	$ 10.5	$ 0.0
Fiscal 2025 Restructuring
Restructuring Cost And Reserve [Line Items]
Restructuring charges		0.0
Fiscal 2025 Restructuring \| Employee Severance And Asset Write-Off Costs
Restructuring Cost And Reserve [Line Items]
Restructuring charges	16.4
Fiscal 2024 Restructuring
Restructuring Cost And Reserve [Line Items]
Restructuring charges	$ 0.5	$ 10.5

Share-Based Compensation - Restricted Stock Units - Additional Information (Details) - Restricted Stock Units $ / shares in Units, $ in Millions	12 Months Ended
	Jun. 28, 2025 USD ($) $ / shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Aggregate intrinsic value expected to vest	$ 193.1
Closing stock price (in dollars per share) \| $ / shares	$ 64.78
Unrecognized share-based compensation cost for RSUs granted	$ 157.4
Unrecognized share-based compensation, period for recognition	1 year 9 months 18 days
Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period (in years)	2 years
Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period (in years)	4 years

Insider Trading Policies and Procedures	12 Months Ended
Insider Trading Policies and Procedures	Jun. 28, 2025
Insider Trading Policies and Procedures [Line Items]
Insider Trading Policies and Procedures Adopted	true

Supplemental Financial Statement Information - Schedule of Non-Current Other Assets (Details) - USD ($) $ in Millions	Jun. 28, 2025	Jun. 29, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Prepayment of intangible assets	$ 139.3	$ 42.5
Right-of-use assets	45.2	46.8
Other	32.6	47.5
Non-current other assets, total	$ 217.1	$ 136.8

Stockholders' Equity - Schedule of Shares Reserved for Future Issuance (Details)	Jun. 28, 2025 shares
Class Of Stock [Line Items]
Awards available for grant under all share-based compensation plans (in shares)	3,817,922
Reserved for future issuance (in shares)	7,095,563
Restricted stock units outstanding
Class Of Stock [Line Items]
Awards available for grant under all share-based compensation plans (in shares)	2,981,280
Market Stock Units
Class Of Stock [Line Items]
Awards available for grant under all share-based compensation plans (in shares)	104,975
Performance Stock Units
Class Of Stock [Line Items]
Awards available for grant under all share-based compensation plans (in shares)	191,386

Leases - Schedule of Future Minimum Lease Payments for Operating Leases (Details) - USD ($) $ in Millions	Jun. 28, 2025	Jun. 29, 2024
Leases [Abstract]
2026	$ 14.0
2027	10.1
2028	8.3
2029	7.4
2030	3.9
Thereafter	11.9
Total future minimum operating lease payments	55.6
Less: interest	(7.5)
Total lease liabilities	$ 48.1	$ 49.4
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Total lease liabilities	Total lease liabilities

Supplemental Financial Statement Information - Schedule Of Other Accrued Liabilities (Details) - USD ($) $ in Millions	Jun. 28, 2025	Jun. 29, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Customer-related liabilities	$ 67.2	$ 58.2
Accrued compensation and benefits	58.9	27.4
Income taxes payable	0.9	42.2
Other	45.4	55.9
Accrued Liabilities, total	$ 172.4	$ 183.7

Share-Based Compensation - Performance Stock Units - Additional Information (Details) - Performance Stock Units $ / shares in Units, $ in Millions	12 Months Ended
	Jun. 28, 2025 USD ($) $ / shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Requisite service period	3 years
Aggregate intrinsic value expected to vest	$ 12.4
Closing stock price (in dollars per share) \| $ / shares	$ 64.78
Unrecognized share-based compensation cost	$ 8.9
Unrecognized share-based compensation, period for recognition	9 months 18 days

Insider Trading Arrangements	3 Months Ended
Insider Trading Arrangements	Jun. 28, 2025
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Supplemental Financial Statement Information - Schedule Of Inventories (Details) - USD ($) $ in Millions	Jun. 28, 2025	Jun. 29, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Raw materials and work-in-progress	$ 69.4	$ 69.5
Finished goods	70.1	44.5
Total Inventories	$ 139.5	$ 114.0

Share-Based Compensation - Schedule of Stock Units Activity (Details)	12 Months Ended
	Jun. 28, 2025 $ / shares shares
Restricted Stock Units
Awards Outstanding
Stock Unit Awards Outstanding, Balance as of June 2024 (in shares) \| shares	1,620,006
Stock Unit Awards, Granted (in shares) \| shares	2,694,317
Stock Unit Awards, Vested (in shares) \| shares	(882,655)
Stock Unit Awards, Forfeited (in shares) \| shares	(450,388)
Stock Unit Awards Outstanding, Balance as of June 2025 (in shares) \| shares	2,981,280
Weighted Average Grant Date Fair Value
Weighted Average Grant Date Fair Value, Balance at June 2024 \| $ / shares	$ 101.4
Weighted Average Grant Date Fair Value, Granted \| $ / shares	60.2
Weighted Average Grant Date Fair Value, Vested \| $ / shares	103.0
Weighted Average Grant Date Fair Value, Forfeited \| $ / shares	84.4
Weighted Average Grant Date Fair Value, Balance at June 2025 \| $ / shares	$ 66.3
Market Stock Units
Awards Outstanding
Stock Unit Awards Outstanding, Balance as of June 2024 (in shares) \| shares	200,513
Stock Unit Awards, Granted (in shares) \| shares	120,765
Stock Unit Awards, Vested (in shares) \| shares	(55,603)
Stock Unit Awards, Forfeited (in shares) \| shares	(160,700)
Stock Unit Awards Outstanding, Balance as of June 2025 (in shares) \| shares	104,975
Weighted Average Grant Date Fair Value
Weighted Average Grant Date Fair Value, Balance at June 2024 \| $ / shares	$ 249.2
Weighted Average Grant Date Fair Value, Granted \| $ / shares	113.5
Weighted Average Grant Date Fair Value, Vested \| $ / shares	195.9
Weighted Average Grant Date Fair Value, Forfeited \| $ / shares	211.4
Weighted Average Grant Date Fair Value, Balance at June 2025 \| $ / shares	$ 179.1
Performance Stock Units
Awards Outstanding
Stock Unit Awards Outstanding, Balance as of June 2024 (in shares) \| shares	265,362
Stock Unit Awards, Granted (in shares) \| shares	205,025
Stock Unit Awards, Vested (in shares) \| shares	(17,757)
Stock Unit Awards, Forfeited (in shares) \| shares	(261,244)
Stock Unit Awards Outstanding, Balance as of June 2025 (in shares) \| shares	191,386
Weighted Average Grant Date Fair Value
Weighted Average Grant Date Fair Value, Balance at June 2024 \| $ / shares	$ 99.3
Weighted Average Grant Date Fair Value, Granted \| $ / shares	78.3
Weighted Average Grant Date Fair Value, Vested \| $ / shares	127.9
Weighted Average Grant Date Fair Value, Forfeited \| $ / shares	93.9
Weighted Average Grant Date Fair Value, Balance at June 2025 \| $ / shares	$ 81.5

Fair Value Measurements - Schedule of Financial Assets Measured at Fair Value on a Recurring Basis (Details) - Estimate of Fair Value Measurement - USD ($) $ in Millions	Jun. 28, 2025	Jun. 29, 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total assets	$ 91.8	$ 638.5
Money market funds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	16.7	600.4
Certificates of deposit
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	14.1	38.1
Short-term investments	61.0	0.0
Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total assets	16.7	600.4
Level 1 \| Money market funds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	16.7	600.4
Level 1 \| Certificates of deposit
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	0.0	0.0
Short-term investments	0.0	0.0
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total assets	75.1	38.1
Level 2 \| Money market funds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	0.0	0.0
Level 2 \| Certificates of deposit
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	14.1	38.1
Short-term investments	$ 61.0	$ 0.0

Leases - Schedule of Components of Leases (Details) - USD ($) $ in Millions	Jun. 28, 2025	Jun. 29, 2024
Leases [Abstract]
Operating lease right-of-use assets	$ 45.2	$ 46.8
Operating lease liabilities	12.3	11.5
Operating lease liabilities, long-term	35.8	37.9
Total operating lease liabilities	$ 48.1	$ 49.4
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Non-current other assets	Non-current other assets
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Total operating lease liabilities	Total operating lease liabilities

Cybersecurity Risk Management and Strategy Disclosure	12 Months Ended
Cybersecurity Risk Management and Strategy Disclosure	Jun. 28, 2025
Cybersecurity Risk Management, Strategy, and Governance [Line Items]
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]	Risk Management and Strategy Our cybersecurity risk management program is part of our overall approach to enterprise risk management. Our cybersecurity risk management program seeks to protect our information systems by managing and reducing material risks from cybersecurity threats and by responding to and mitigating cybersecurity incidents. We have designed our cybersecurity risk management program using certain industry practices and frameworks as a guide, including those established by the International Organization for Standardization and the National Institute of Standards and Technology, although we may not meet all technical standards, specifications or requirements. We employ a cross-functional approach to preserving the confidentiality, security and availability of the employee, customer, supplier and partner information that we collect and store. We have implemented cybersecurity processes, measures and controls to assist management in our assessment, identification and management of risks from cybersecurity threats. Our Information Security team monitors events, analyzes threats and coordinates our incident response pursuant to our incident response plan, which includes the process to be followed for reporting of incidents. Our cybersecurity risk management involves identifying information assets, assessing and prioritizing risks and employing various tools and techniques to identify and remediate threats. We also leverage third party service providers to test and validate our existing processes and procedures. We conduct annual and ongoing security awareness and behavioral change training for employees to educate them on cybersecurity best practices and train them to recognize phishing attempts. We also assess and manage cybersecurity risks associated with third-party service providers, including those in our supply chain or vendors who have access to our data or systems. Our cybersecurity process is iterative, with regular reviews and updates to help improve and respond to a dynamic and continuously evolving threat landscape. We describe whether and how risks from cybersecurity threats have materially affected or are reasonably likely to materially affect us, our business strategy, our results of operations or our financial condition under the heading “We face risks associated with security breaches or cyberattacks” included as part of our risk factors disclosures in “Item 1A. Risk Factors” of this Annual Report on Form 10-K. We have not experienced a cybersecurity incident which has been determined to be material and the expenses we have incurred from cybersecurity incidents and threats were immaterial, including penalties and settlements, of which there were none.
Cybersecurity Risk Management Processes Integrated [Flag]	true
Cybersecurity Risk Management Processes Integrated [Text Block]	Our cybersecurity risk management program is part of our overall approach to enterprise risk management. Our cybersecurity risk management program seeks to protect our information systems by managing and reducing material risks from cybersecurity threats and by responding to and mitigating cybersecurity incidents.
Cybersecurity Risk Management Third Party Engaged [Flag]	true
Cybersecurity Risk Third Party Oversight and Identification Processes [Flag]	true
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag]	false
Cybersecurity Risk Board of Directors Oversight [Text Block]	Our Board of Directors is responsible for risk management oversight and has delegated to our Audit Committee oversight responsibility for reviewing the effectiveness of our governance and management of cybersecurity risks. The Audit Committee biannually reviews our policies and practices with respect to risk management, including cybersecurity risks, and reports its findings to the full Board of Directors. The Audit Committee also receives a report containing information security risk posture details, remediation plan execution progress and pertinent threat intelligence updates from the heads of the IT Security and Internal Audit departments on a regular basis, typically biannually. At least annually, but more frequently as necessary, threats from cybersecurity risks and our action plans relating to those risks, also are considered by the full Board during meeting discussions of enterprise risks. Members of management, including the Chief Executive Officer, Chief Financial Officer, Chief Information Officer and Chief Legal Officer, may also report directly to the Board of Directors on significant risk management issues, including cybersecurity threats and incidents. We have an Information Security Management Steering Committee (“ISMS Committee”), comprised of our Chief Information Security Officer (“CISO”), as well as members of our executive team, including our Chief Information Office and Chief Legal Officer. Our Chief Information Officer and CISO, in coordination with the ISMS Committee, work collaboratively to implement our enterprise-wide cybersecurity strategy, policy, standards, architecture and processes. Our InfoSec team communicates with and reports to the CISO, enabling the CISO, Cyber Incident Response Team and ISMS Committee to monitor the prevention, detection, mitigation and remediation of cybersecurity incidents. Our CISO has significant experience managing global IT operations, including strategy, applications, infrastructure, information security, support and execution.
Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block]	Our Board of Directors is responsible for risk management oversight and has delegated to our Audit Committee oversight responsibility for reviewing the effectiveness of our governance and management of cybersecurity risks.
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block]	The Audit Committee biannually reviews our policies and practices with respect to risk management, including cybersecurity risks, and reports its findings to the full Board of Directors. The Audit Committee also receives a report containing information security risk posture details, remediation plan execution progress and pertinent threat intelligence updates from the heads of the IT Security and Internal Audit departments on a regular basis, typically biannually.
Cybersecurity Risk Role of Management [Text Block]	We have an Information Security Management Steering Committee (“ISMS Committee”), comprised of our Chief Information Security Officer (“CISO”), as well as members of our executive team, including our Chief Information Office and Chief Legal Officer. Our Chief Information Officer and CISO, in coordination with the ISMS Committee, work collaboratively to implement our enterprise-wide cybersecurity strategy, policy, standards, architecture and processes. Our InfoSec team communicates with and reports to the CISO, enabling the CISO, Cyber Incident Response Team and ISMS Committee to monitor the prevention, detection, mitigation and remediation of cybersecurity incidents. Our CISO has significant experience managing global IT operations, including strategy, applications, infrastructure, information security, support and execution.
Cybersecurity Risk Management Positions or Committees Responsible [Flag]	true
Cybersecurity Risk Management Positions or Committees Responsible [Text Block]	Our Chief Information Officer and CISO, in coordination with the ISMS Committee, work collaboratively to implement our enterprise-wide cybersecurity strategy, policy, standards, architecture and processes.
Cybersecurity Risk Management Expertise of Management Responsible [Text Block]	Our CISO has significant experience managing global IT operations, including strategy, applications, infrastructure, information security, support and execution.
Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block]	At least annually, but more frequently as necessary, threats from cybersecurity risks and our action plans relating to those risks, also are considered by the full Board during meeting discussions of enterprise risks. Members of management, including the Chief Executive Officer, Chief Financial Officer, Chief Information Officer and Chief Legal Officer, may also report directly to the Board of Directors on significant risk management issues, including cybersecurity threats and incidents.
Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag]	true

Business Combinations and Asset Acquisitions - Narrative (Details) $ in Millions		3 Months Ended		5 Months Ended	12 Months Ended
	Jan. 19, 2025 USD ($)	Jun. 28, 2025 USD ($) productCategory	Sep. 30, 2023 USD ($) productCategory	Jun. 28, 2025 USD ($) productCategory	Jun. 28, 2025 USD ($) productCategory	Jun. 29, 2024 USD ($)	Jun. 24, 2023 USD ($)	Jan. 30, 2025 USD ($)
Business Combination [Line Items]
Goodwill		$ 872.3		$ 872.3	$ 872.3	$ 816.4	$ 816.4
Net revenue					$ 1,074.3	$ 959.4	$ 1,355.1
Broadcom Inc.
Business Combination [Line Items]
Number of technology products \| productCategory		4	4	4	4
Aggregate consideration			$ 130.0
Number of obtained technology products \| productCategory		3		3	3
Extension period for license products (in year)		3 years		3 years	3 years
Fair value of other acquired net tangible assets					$ 87.5
Broadcom Inc. \| Other Long-Term Assets
Business Combination [Line Items]
Fair value of other acquired net tangible assets					$ 42.5
Minimum \| Fair Value, Inputs, Level 3
Business Combination [Line Items]
Fair value measurements discount rate, percentage					5.80%
Maximum \| Fair Value, Inputs, Level 3
Business Combination [Line Items]
Fair value measurements discount rate, percentage					10.50%
Broadcom Business Acquisition
Business Combination [Line Items]
Cash	$ 200.3	$ 200.3
Adjustments to consideration transferred		47.6			$ 47.6
Goodwill		52.3		$ 52.3	52.3			$ 52.3
Goodwill expected to be tax deductible		$ 16.0		16.0	$ 16.0
Net revenue				$ 47.7

Share-Based Compensation - Employee Stock Purchase Plan - Additional Information (Details) $ / shares in Units, $ in Millions	12 Months Ended
	Jun. 28, 2025 USD ($) exerciseDate $ / shares shares	Jun. 29, 2024 $ / shares	Jun. 24, 2023 $ / shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Reserved for future issuance (in shares)	7,095,563
Unrecognized share-based compensation costs \| $	$ 4.9
Period over which share-based compensation is amortized duration	8 months
2019 Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock purchases under ESPP, base compensation (in percent)	15.00%
Payroll deductions under ESPP of fair market value (in percent)	85.00%
Earlier options vesting period	1 year
Number of exercise dates \| exerciseDate	2
Reserved for future issuance (in shares)	449,103
Fair value of each award granted \| $ / shares	$ 22.58	$ 34.54	$ 40.70
Share-based payment award, exercise date, intervals	6 months

Revenue - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 28, 2025	Jun. 29, 2024
Revenue from Contract with Customer [Abstract]
Contract liability	$ 16.2	$ 14.7
Revenue recognized related to contract liabilities	$ 13.8	$ 4.9

Audit Information	12 Months Ended
Audit Information	Jun. 28, 2025
Audit Information [Abstract]
Auditor Name	KPMG LLP
Auditor Location	Santa Clara, California
Auditor Firm ID	185

Leases - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 28, 2025	Jun. 29, 2024
Commitments Contingencies And Litigation [Line Items]
Operating lease expense	$ 12.7	$ 11.8
Operating lease, weighted average remaining lease term	5 years 8 months 23 days
Operating lease, weighted average discount rate	5.24%
Maximum
Commitments Contingencies And Litigation [Line Items]
Lease renewal term	7 years

Employee Benefit Plans	12 Months Ended
Employee Benefit Plans	Jun. 28, 2025
Retirement Benefits [Abstract]
Employee Benefit Plans	Employee Benefit Plans We provide retirement benefit plans in the United States and certain foreign countries. We have a 401(k) Retirement Savings Plan (“401k Plan”) for U.S. full-time employees that allows eligible employees to contribute as defined in the 401k Plan and subject to Internal Revenue Service limitations. In fiscal 2025, we provided matching funds of 25% of our employees’ contributions, excluding catch-up contributions. The employer matching funds vest immediately. We made matching contributions to the 401k Plan of $1.8 million in fiscal 2025 and $1.9 million in both fiscal 2024 and 2023.

Commitments and Contingencies - Schedule of Future Unconditional Purchase Commitments (Details) $ in Millions	Jun. 28, 2025 USD ($)
Commitments and Contingencies Disclosure [Abstract]
2026	$ 40.0
2027	8.4
2028	5.5
Total	$ 53.9

Fair Value Measurements - Schedule of Carrying Amounts and Estimated Fair Values of the Senior Notes and Term Debt (Details) - USD ($) $ in Millions	Jun. 28, 2025	Nov. 26, 2024	Nov. 19, 2024	Jun. 29, 2024
Debt Instrument [Line Items]
Carrying Amount	$ 850.0			$ 1,000.0
Level 2
Debt Instrument [Line Items]
Carrying Amount	834.8			972.9
Estimated Fair Value	788.9			936.6
Senior Notes due 2029
Debt Instrument [Line Items]
Carrying Amount	400.0			400.0
Senior Notes due 2029 \| Level 2
Debt Instrument [Line Items]
Carrying Amount	397.0			396.3
Estimated Fair Value	373.2			359.6
Term Loan Facility due 2028
Debt Instrument [Line Items]
Carrying Amount	0.0			600.0
Term Loan Facility due 2028 \| Level 2
Debt Instrument [Line Items]
Carrying Amount	0.0			576.6
Estimated Fair Value	0.0			577.0
2031 Notes \| Convertible Senior Notes due 2031
Debt Instrument [Line Items]
Carrying Amount	450.0	$ 50.0	$ 400.0	0.0
2031 Notes \| Level 2 \| Convertible Senior Notes due 2031
Debt Instrument [Line Items]
Carrying Amount	437.8			0.0
Estimated Fair Value	$ 415.7			$ 0.0

Segment and Other Information - Long-Lived Assets within Geographic Areas (Details) - USD ($) $ in Millions	Jun. 28, 2025	Jun. 29, 2024
Long Lived Assets By Geographical Areas [Line Items]
Long-lived assets	$ 1,251.8	$ 1,227.1
North America
Long Lived Assets By Geographical Areas [Line Items]
Long-lived assets	559.5	523.1
EMEA
Long Lived Assets By Geographical Areas [Line Items]
Long-lived assets	453.6	499.3
Asia Pacific
Long Lived Assets By Geographical Areas [Line Items]
Long-lived assets	$ 238.7	$ 204.7

Consolidated Statements of Stockholders Equity - USD ($) $ in Millions	Total	Common Stock	Additional Paid-In Capital	Treasury Stock	Accumulated Other Comprehensive Income	Retained Earnings
Beginning balance (in shares) at Jun. 25, 2022		67,745,800
Beginning balance at Jun. 25, 2022	$ 1,266.4	$ 0.1	$ 924.1	$ (694.5)	$ (1.8)	$ 1,038.5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	73.6					73.6
Other comprehensive income	1.8				1.8
Issuance of common stock for share-based award compensation plans (in shares)		941,711
Issuance of common stock for share-based award compensation plans	17.6		17.6
Payroll taxes related to net share settlement of share-based awards	(54.5)		(54.5)
Common stock repurchased	(183.5)			(183.5)
Share-based compensation	122.0		122.0
Ending balance at Jun. 24, 2023	1,243.4	$ 0.1	1,009.2	(878.0)	0.0	1,112.1
Ending balance (in shares) at Jun. 24, 2023		68,687,511
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	125.6					125.6
Other comprehensive income	0.0
Issuance of common stock for share-based award compensation plans (in shares)		996,480
Issuance of common stock for share-based award compensation plans	15.9		15.9
Payroll taxes related to net share settlement of share-based awards	(36.9)		(36.9)
Share-based compensation	118.8		118.8
Ending balance at Jun. 29, 2024	1,466.8	$ 0.1	1,107.0	(878.0)	0.0	1,237.7
Ending balance (in shares) at Jun. 29, 2024		69,683,991
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(47.8)					(47.8)
Other comprehensive income	0.0
Issuance of common stock for share-based award compensation plans (in shares)		927,854
Issuance of common stock for share-based award compensation plans	13.9		13.9
Payroll taxes related to net share settlement of share-based awards	(19.6)		(19.6)
Purchase of capped calls related to the 2031 convertible senior notes	(49.9)		(49.9)
Common stock repurchased	(128.9)			(128.9)
Share-based compensation attributable to acquisition	47.6		47.6
Share-based compensation	112.8		112.8
Ending balance at Jun. 28, 2025	$ 1,394.9	$ 0.1	$ 1,211.8	$ (1,006.9)	$ 0.0	$ 1,189.9
Ending balance (in shares) at Jun. 28, 2025		70,611,845

Goodwill and Acquired Intangible Assets - Schedule of Expected Annual Aggregate Amortization Expense (Details) - USD ($) $ in Millions	Jun. 28, 2025	Jun. 29, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
2026	$ 112.5
2027	62.2
2028	42.5
2029	19.4
2030	9.8
Thereafter	9.0
To be determined	6.8
Net Carrying Value	$ 262.2	$ 288.4

Commitments and Contingencies - Narrative (Details) $ in Millions	Jun. 28, 2025 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Purchase obligation commitment	$ 53.9

Basis of Presentation and Significant Accounting Policies (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 28, 2025	Jun. 29, 2024
Summary Of Significant Accounting Policies [Line Items]
Remaining unsatisfied performance obligation	$ 0.0
Account receivable bad debt	$ 4.2	$ 4.2
Minimum
Summary Of Significant Accounting Policies [Line Items]
Intangible asset, useful life	1 year
Maximum
Summary Of Significant Accounting Policies [Line Items]
Intangible asset, useful life	8 years

Document and Entity Information - USD ($)	12 Months Ended
Document and Entity Information - USD ($)	Jun. 28, 2025	Aug. 12, 2025	Dec. 28, 2024
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Jun. 28, 2025
Current Fiscal Year End Date	--06-28
Document Transition Report	false
Entity File Number	000-49602
Entity Registrant Name	SYNAPTICS INCORPORATED
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	77-0118518
Entity Address, Address Line One	1109 McKay Drive
Entity Address, City or Town	San Jose
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	95131
City Area Code	408
Local Phone Number	904-1100
Title of 12(b) Security	Common Stock, par value $.001 per share
Trading Symbol	SYNA
Security Exchange Name	NASDAQ
Entity Well Known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 1,829,646,353
Entity Common Stock, Shares Outstanding		38,656,442
Documents Incorporated by Reference	Portions of Part III of this Form 10-K are incorporated by reference from the registrant’s definitive proxy statement for its 2025 annual meeting of stockholders, which will be filed with the Securities and Exchange Commission within 120 days after the end of the fiscal year covered by this Form 10-K.
Entity Central Index Key	0000817720
Amendment Flag	false
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	FY

Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 28, 2025	Jun. 29, 2024
Current Assets:
Cash and cash equivalents	$ 391.5	$ 876.9
Short-term investments	61.0	0.0
Receivables, net	130.3	142.4
Inventories	139.5	114.0
Prepaid expenses and other current assets	29.6	29.0
Total current assets	751.9	1,162.3
Property and equipment, net	72.1	75.5
Goodwill	872.3	816.4
Acquired intangible assets	262.2	288.4
Deferred tax assets	408.8	345.6
Non-current other assets	217.1	136.8
Total assets	2,584.4	2,825.0
Current Liabilities:
Accounts payable	98.5	87.5
Accrued liabilities	172.4	183.7
Current portion of long-term debt	0.0	6.0
Total current liabilities	270.9	277.2
Long-term debt	834.8	966.9
Other long-term liabilities	83.8	114.1
Total liabilities	1,189.5	1,358.2
Stockholders’ Equity:
$0.001 par value; 10,000,000 shares authorized; no shares issued and outstanding	0.0	0.0
$0.001 par value; 120,000,000 shares authorized, 70,611,845 and 69,683,991 shares issued, 38,642,761 and 39,567,552 shares outstanding, at June 2025 and June 2024, respectively	0.1	0.1
Additional paid-in capital	1,211.8	1,107.0
Treasury stock: 31,969,084 and 30,116,439 common shares at June 2025 and June 2024, respectively, at cost	(1,006.9)	(878.0)
Retained earnings	1,189.9	1,237.7
Total stockholders’ equity	1,394.9	1,466.8
Total liabilities and stockholders’ equity	$ 2,584.4	$ 2,825.0

Fair Value Measurements - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 28, 2025	Jun. 29, 2024
Defined Benefit Plan Disclosure [Line Items]
Cash held in bank	$ 360.7	$ 238.4
Level 1, 2 or 3 Member
Defined Benefit Plan Disclosure [Line Items]
Asset transfer	$ 0.0	$ 0.0

Concentrations of Credit Risk and Significant Customers	12 Months Ended
Concentrations of Credit Risk and Significant Customers	Jun. 28, 2025
Risks and Uncertainties [Abstract]
Concentrations of Credit Risk and Significant Customers	Concentrations of Credit Risk and Significant Customers Financial instruments that potentially subject us to concentrations of credit risk consist primarily of cash equivalents, short-term investments and accounts receivable. Our cash and cash equivalents and short-term investments are maintained with high-quality financial institutions. We believe that the concentration of credit risk in our accounts receivable is substantially mitigated by our credit evaluation process, relatively short collection terms and the level of credit worthiness of our customers. We extend credit based on an evaluation of a customer’s financial condition and generally do not require collateral. We perform ongoing credit evaluations on our customers and limit the amount of credit extended when deemed necessary based upon payment history and current credit worthiness. We regularly review the allowance for credit losses by considering factors such as historical experience, credit quality, age of accounts receivable balances and current economic conditions that may negatively impact our customers’ ability to pay. At June 2025 and June 2024, three customers comprised a total of 45% and 42% our accounts receivable, respectively.