Allegro MicroSystems Inc 2024年度报告

☒ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year endedMarch 28,2025 OR ☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934For the transition period from _______________ to _______________Commission File Number:001-39675 ALLEGRO MICROSYSTEMS, INC. (Exact name of registrant as specified in its charter) Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.Yes☒No☐ Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during thepreceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past90 days.Yes☒No☐ Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of RegulationS-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).Yes☒No☐ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerginggrowth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2of the Exchange Act. Large accelerated filer☒Non-accelerated filer☐ Accelerated filer☐Smaller reporting company☐Emerging growth company☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revisedfinancial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐ Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control overfinancial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its auditreport.☒ If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflectthe correction of an error to previously issued financial statements.☐ Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any ofthe registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b).☐ Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes☐No☒ As of September 27, 2024, the last business day of the registrant’s most recently completed second fiscal quarter, the aggregate market value of the voting and non-voting common equity held by non-affiliates was$2,996,240,853based on the closing sale price as reported on The NASDAQ Stock Market LLC on such date. As of May 19, 2025, the registrant had184,901,228shares of common stock, $0.01 par value per share, outstanding. DOCUMENTS INCORPORATED BY REFERENCE Portions of the registrant’s proxy statement for its 2025 Annual Meeting of Stockholders to be filed pursuant to Regulation 14A within 120 days of the end of theregistrant’s fiscal year ended March 28, 2025 are incorporated by reference into Part III of this Annual Report on Form 10-K to the extent stated herein. TABLE OF CONTENTS Forward Looking Statements PART I. BusinessRisk FactorsUnresolved Staff CommentsCybersecurityPropertiesLegal ProceedingsMine Safety Disclosures Item 1.Item 1A.Item 1B.Item 1C.Item 2.Item 3.Item 4.PART II. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of EquitySecurities39Reserved40Management’s Discussion and Analysis of Financial Condition and Results of Operations41Quantitative and Qualitative Disclosures About Market Risk54Financial Statements and Supplementary Data54Changes in and Disagreements with Accountants on Accounting and Financial Disclosure54Controls and Procedures55Other Information55Disclosure Regarding Foreign Jurisdictions that Prevent Inspections55 Item 6.Item 7.Item 7A.Item 8.Item 9.Item 9A.Item 9B.Item 9C. PART III. Directors, Executive Officers and Corporate GovernanceExecutive CompensationSecurity Ownership of Certain Beneficial Owners and Management and Related Stockholder MattersCertain Relationships and Related Transactions, and Director IndependencePrincipal Accountant Fees and Services PART IV. Exhibit and Financial Statement Schedules58Form 10-K Summary61Signatures62Index to Consolidated Financial StatementsF-1Report of Independent Registered Public Accounting FirmF-2Consolidated Balance SheetsF-4Consolidated Statements of Operatio