of this report, including Exhibit 99.1 hereto, shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended. The information and the accompanying exhibit shall not be incorporated by reference into filings with the U.S. Securities and Exchange Commission (the "SEC") made by the Company, except as shall be expressly se…

A copy of the Asset Purchase Agreement was filed as Exhibit 2.1 to the Current Report on Form 8-K filed by the Company with the SEC on February 4, 2026, and is incorporated herein by reference. The foregoing description of the Asset Purchase Agreement does not purport to be complete and is qualified in its entirety by reference to the Asset Purchase Agreement.

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The disclosure set forth in

Unregistered Sale of Equity Securities. The disclosure set forth in the Introductory Note and

Credit Agreement On June 30, 2026 (the “Effective Date”), the Company entered into a credit agreement (the “Credit Agreement”) by and among the Company as borrower, the lenders from time to time party thereto (the “Lenders”) and Wells Fargo Bank, National Association, as administrative agent and collateral agent for the Lenders. The Credit Agreement provides for a senior secured revolving credit facility in an aggregate principal amount of $200,000,000 (the “Revolving Credit Facility”; and an…

The company adopted a deferred compensation plan for directors and certain employees.

Entry into a Material Agreement. Completion of Convertible Senior Notes Offering On May 22, 2026, SiTime Corporation (the “ Company ”) completed its registered underwritten public offering (the “ Offering ”) of $1.35 billion aggregate principal amount of 0% Convertible Senior Notes due 2031 (the “ Notes ”), pursuant to the Underwriting Agreement (the “ Underwriting Agreement ”) with Wells Fargo Securities, LLC and Goldman Sachs & Co. LLC as representatives of the several underwriters (the “ U…

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information set forth under

below, which includes $150.0 million aggregate principal amount of Notes sold pursuant to the full exercise of the Underwriters’ option to purchase additional Notes, solely to cover over-allotments. The Notes were offered and sold in a public offering registered under the Securities Act of 1933, as amended (the “ Securities Act ”), pursuant to a registration statement on Form S-3 filed with the Securities and Exchange Commission (the “ SEC ”) on February 26, 2024, which automatically became e…

Other Events. As previously disclosed, on February 4, 2026, SiTime Corporation, a Delaware corporation (the “Company”) entered into an Asset Purchase Agreement (the “Asset Purchase Agreement”) with Renesas Electronics America Inc., a California corporation (“Renesas”). Pursuant to the Asset Purchase Agreement, Renesas will and will cause certain of its affiliates to sell, transfer, assign and convey to the Company all of their right, title and interest in, to and under certain assets related…

of this report, including Exhibit 99.1 hereto, shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended. The information and the accompanying exhibit shall not be incorporated by reference into filings with the U.S. Securities and Exchange Commission (the "SEC") made by the Company, except as shall be expressly se…

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information set forth in

Entry into a Material Definitive Agreement. On March 23, 2026, SiTime Corporation (the "Company") entered into a lease agreement (the "Lease") with 3250 Jay Street Owner LLC, a Delaware limited liability company (the "Landlord") under which the Company will lease approximately 149,300 square feet of space in two adjacent buildings located at 3250 Jay Street, Santa Clara, California, 95054 and 3260 Jay Street, Santa Clara, California 95054 (collectively, the "Buildings"). The Buildings will se…

of this report, including Exhibit 99.1 hereto, shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended. The information and the accompanying exhibit shall not be incorporated by reference into filings with the U.S. Securities and Exchange Commission (the "SEC") made by the Company, except as shall be expressly se…

Entry into a Material Definitive Agreement Asset Purchase Agreement On February 4, 2026, SiTime Corporation, a Delaware corporation (“SiTime” or the “Company”) entered into an Asset Purchase Agreement (the “Asset Purchase Agreement”) with Renesas Electronics America Inc., a California corporation (“Renesas”), pursuant to which Renesas will and will cause certain of its affiliates to sell, transfer, assign and convey to SiTime all of their right, title and interest in, to and under certain ass…

Director — Faraj Aalaei: The filing discloses the appointment of a new independent director to the board, which is a routine governance action and not a departure of an executive officer.

of this report, including Exhibit 99.1 hereto, shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended. The information and the accompanying exhibit shall not be incorporated by reference into filings with the U.S. Securities and Exchange Commission (the "SEC") made by the Company, except as shall be expressly se…

Director — Tom Yiu: Mr. Tom Yiu resigned as a Class II director, and Ganesh Moorthy was appointed to fill the vacancy.

of this report, including Exhibit 99.1 hereto, shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended. The information and the accompanying exhibit shall not be incorporated by reference into filings with the U.S. Securities and Exchange Commission (the "SEC") made by the Company, except as shall be expressly se…

Other Information On June 25, 2025, SiTime Corporation (the “Company”) entered into an Underwriting Agreement (the “Underwriting Agreement”) with UBS Securities LLC and Stifel, Nicolaus & Company, Incorporated, as representatives of the several underwriters named in Schedule I thereto (the “Underwriters”), relating to the offering and sale (the “Offering”) of 1,750,000 shares of the Company’s common stock, par value $0.0001 per share (“Common Stock”). The price to the public in the Offering i…

of this report, including Exhibit 99.1 hereto, shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended. The information and the accompanying exhibit shall not be incorporated by reference into filings with the U.S. Securities and Exchange Commission (the "SEC") made by the Company, except as shall be expressly se…

of this report, including Exhibit 99.1 hereto, shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended. The information and the accompanying exhibit shall not be incorporated by reference into filings with the U.S. Securities and Exchange Commission (the "SEC") made by the Company, except as shall be expressly se…

of this report, including Exhibit 99.1 hereto, shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended. The information and the accompanying exhibit shall not be incorporated by reference into filings with the U.S. Securities and Exchange Commission (the "SEC") made by the Company, except as shall be expressly se…

of this report, including Exhibit 99.1 hereto, shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended. The information and the accompanying exhibit shall not be incorporated by reference into filings with the U.S. Securities and Exchange Commission (the "SEC") made by the Company, except as shall be expressly se…

Changes in Registrant’s Certifying Accountant. The Audit Committee (the “Committee”) of the Board of Directors of SiTime Corporation (the “Company”) has conducted a competitive selection process to determine the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2024. As a result of this process, following the review and evaluation of proposals from participating firms, on June 10, 2024 , the Committee approved the appointment of Deloitte & Touche…