ALLEGRO MICROSYSTEMS, INC. Debt Disclosure

Revolving Credit Facility under the 2023 Revolving Credit Agreement

On June 21, 2023, the Company entered into a Credit Agreement dated as of June 21, 2023 (as amended, restated, supplemented or otherwise modified, refinanced or replaced from time to time, the “2023 Revolving Credit Agreement”) by and among the Company, Allegro MicroSystems, LLC (“AML”), Morgan Stanley Senior Funding, Inc., as the administrative agent, collateral agent, a letter of credit issuers parties thereto that provided for a $224,000 revolving credit facility, which included a $20,000 letter of credit sub-facility. On August 6, 2024, upon entry into the Amendment No. 2 (the “Second Amendment”) to the 2023 Revolving Credit Agreement, the total capacity of the revolving credit facility was increased to $256,000, and the Second Amendment also provided for a new $400,000 tranche of term loans maturing in 2030 (the “2024 Term Loans”), which were paid in full in connection with entry into the Third Amendment (as defined below). The revolving credit facility is available until, and loans made thereunder will mature on, June 21, 2028. Under the terms of the 2023 Revolving Credit Agreement, interest is calculated at a rate equal to (i) Term SOFR (as defined in the 2023 Revolving Credit Agreement) in effect, plus the applicable spread (ranging from 1.50% to 1.75%) or (ii) the highest of (x) the Federal funds rate, as published by the Federal Reserve Bank of New York, plus 0.50%, (y) the prime lending rate or (z) the one-month term SOFR plus 1.00% in effect, plus the applicable spread (ranging from 0.50% to 0.75%). The applicable spreads are based on the Company’s Total Net Leverage Ratio (as defined in the 2023 Revolving Credit Agreement) at the time of the applicable borrowing. Issuance costs related to the revolving credit facility were not significant. As of March 27, 2026, there were no outstanding borrowings under the revolving credit facility.

The Company will also pay a quarterly commitment fee of 0.20% to 0.25% on the daily amount by which the commitments under the revolving credit facility exceed the outstanding loans and letters of credit under the revolving credit facility. The 2023 Revolving Credit Agreement contains certain covenants applicable to the Company and its subsidiaries, including limitations on additional indebtedness, liens, various fundamental changes, dividends and distributions, investments (including acquisitions), transactions with affiliates, asset sales, prepayment of junior financing, changes in business and other limitations customary in senior secured credit facilities. In addition, the Company is required to maintain a Total Net Leverage Ratio of no more than 4.00 to 1.00 at the end of each fiscal quarter, which may, subject to certain limitations, be increased to 4.50 to 1.00 for any quarter in which an acquisition in excess of $500,000 is conducted and for the three subsequent quarters.

The 2023 Revolving Credit Agreement provides for customary events of default. Upon an event of default, the administrative agent with the consent of, or at the request of, the holders of more than 50% in principal amount of the loans and commitments, may terminate the commitments and accelerate the maturity of the loans and enforce certain other remedies.

The Company was in compliance with its Revolving Credit Facility covenants as of March 27, 2026.

Refinancing and Repricing of Term Loans

On February 6, 2025, the Company entered into Amendment No. 3 (the “Third Amendment”) to the 2023 Revolving Credit Agreement. The Third Amendment provided for a new $375,000 tranche of term loans maturing in 2030 (the “2025 Refinanced Loans”), the proceeds of which were used, in relevant part, to (i) refinance all outstanding borrowings under the 2024 Term Loans, (ii) pay fees and expenses in connection with the foregoing and (iii) for general corporate purposes. The 2025 Refinanced Loans amortized at a rate of 0.00% per annum. The 2025 Refinanced Loans bore interest, at the Company’s option, at a rate equal to (i) Term SOFR (as defined in the 2023 Revolving Credit Agreement) in effect from time to time plus 2.00% or (ii) the highest of (x) the Federal funds rate, as published by the Federal Reserve Bank of New York, plus 0.50%, (y) the prime lending rate or (z) the one-month Term SOFR plus 1.00% in effect from time to time plus 1.00%. The 2025 Refinanced Loans were scheduled to mature on October 31, 2030. The Company incurred costs of $1,090 in connection with the Third Amendment.

Payments of $25,000, $10,000, and $25,000 were applied to the outstanding balance of the 2025 Refinanced Loans on
April 30, 2025, May 30, 2025 and July 31, 2025, respectively.

On January 21, 2026, the Company entered into Amendment No. 4 (the “Fourth Amendment”) to the 2023 Revolving Credit Agreement. The Fourth Amendment provides for a new $285,000 tranche of term loans maturing in October 2030 (the “2026 Refinanced Loans”), the proceeds of which were used, in relevant part, to refinance all outstanding borrowing under the 2025 Refinanced Loans. The 2026 Refinanced Loans amortize at a rate of 0.00% per annum. The 2026 Refinanced Loans bear interest, at the Company’s option, at a rate equal to (i) Term SOFR in effect from time to time plus 1.75% or (ii) the highest of (x) the Federal funds rate, as published by the Federal Reserve Bank of New York, plus 0.50%, (y) the prime lending rate or (z) the one-month Term SOFR plus 1.00% in effect from time to time plus 0.75%. The 2026 Refinanced Loans will mature on October 31, 2030.

The Company was in compliance with its debt covenants as of March 27, 2026.