Amendments to Bylaws Form 8 K

Item 5.03 Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year

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As previously announced on November 7, 2024, the Board of Directors of RLI Corp. (the "Company") authorized a 2-for-1 forward split (the "Stock Split") of its common stock, par value $0.01 per share (the "Common Stock"), to be effected through the filing of a Certificate of Amendment to the Company's Amended and Restated Certificate of Incorporation (the "Certificate of Amendment"). The Certificate of Amendment, which the Company filed on November 20, 2024, will become effective at 5:00 p.m., Eastern Time, on January 15, 2025, and is filed as Exhibit 3.1 to this Current Report on Form 8-K.

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The Certificate of Amendment will effect the Stock Split and also proportionately increase the number of shares of authorized Common Stock from 200,000,000 to 400,000,000. The two-for-one stock split is for shareholders of record as of December 31, 2024, and will be effective and shares distributed after the close of business on January 15, 2025. Trading in the Common Stock is expected to commence on a split-adjusted basis on January 16, 2024.

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