News & Events

Other Events. ​ On May 14, 2026, RLI Corp. (“RLI”) a nnounced that its Board of Directors approved a special cash dividend on its common stock of $2.00 per share and a regular quarterly dividend on its common stock of $0.18 per share. Both dividends are payable on June 12, 2026 to shareholders of record as of May 29, 2026. ​ RLI also announced its Board of Directors approved a share repurchase program authorizing an aggregate of $250 million in share repurchases (the “Repurchase Program”). Re…

hereof and should not be deemed to be “filed” under the Securities Exchange Act of 1934. 104 ​ Cover Page Interactive Data File (embedded within the Inline XBRL document). ​ ​ ​ SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​ ​ ​ ​ RLI CORP. ​ ​ ​ ​ ​ ​ Date: April 22, 2026 By: /s/ Aaron P. Diefenthaler ​ ​ Aaron P. Diefenthaler ​ Chief Financi…

Entry into a Material Definitive Agreement. Senior Notes Offering On March 3, 2026, RLI Corp. (the “Company”) completed the public offering of $300 million in aggregate principal amount of its 5.375% Senior Notes due 2036 (the “Notes”). The Notes were issued pursuant to an indenture entered into on March 3, 2026 (the “Base Indenture”), as supplemented by a first supplemental indenture entered into on March 3, 2026 (the “First Supplemental Indenture”), in each case, between the Company and Com…

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

Other Events. ​ On February 18, 2026, RLI Corp. (“RLI”) a nnounced that its Board of Directors approved a regular quarterly dividend on its common stock of $0.16 per share. The dividends is payable on March 16, 2026 to shareholders of records as of March 2, 2026. ​ Furnished as Exhibit 99.1 and incorporated herein by reference is a copy of the press release issued by RLI announcing the dividend. ​

hereof and should not be deemed to be “filed” under the Securities Exchange Act of 1934. 104 ​ Cover Page Interactive Data File (embedded within the Inline XBRL document). ​ ​ ​ SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​ ​ ​ ​ RLI CORP. ​ ​ ​ ​ ​ ​ Date: October 20, 2025 By: /s/ Todd W. Bryant ​ ​ Todd W. Bryant ​ Chief Financial Officer ​…