Results of Operations and Financial Condition. On July 23, 2026, Kinsale Capital Group, Inc. (the “Company”) issued a press release announcing its financial results for the three and six months ended June 30, 2026. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

Executive Vice President and Chief Information Officer — Diane Schnupp: Ms. Schnupp retired from her role with a severance agreement.

Executive Vice President and Chief Information Officer — Diane Schnupp: Diane Schnupp retired from her positions with the company.

Results of Operations and Financial Condition. On April 23, 2026, Kinsale Capital Group, Inc. (the “Company”) issued a press release announcing its financial results for the three months ended March 31, 2026. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

Results of Operations and Financial Condition. On February 12, 2026, Kinsale Capital Group, Inc. (the “Company”) issued a press release announcing its financial results for the fourth quarter and year ended December 31, 2025. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

Director — Frederick L. Russell, Jr.: Mr. Russell will not stand for re-election to the Board of Directors.

President and Chief Operating Officer — Brian D. Haney: The filing discloses a routine grant of restricted stock awards to an existing executive, not a change in management or departure.

Entry into a Material Definitive Agreement. On December 11, 2025, Kinsale Capital Group, Inc. (the “Company”) entered into: • the Third Amendment to the Note Purchase and Private Shelf Agreement (the “NPA Amendment”) with PGIM, Inc. and the other noteholders party thereto; and • Amendment No. 3 to the Amended and Restated Credit Agreement (the “Credit Agreement Amendment”) with JPMorgan Chase Bank, N.A., as administrative agent and as a lender, Truist Bank, as a lender, and CIBC Bank USA, as…

Other Events. On December 11, 2025, the Company issued a press release announcing that its Board of Directors authorized a share repurchase program authorizing the repurchase of up to $250 million of the Company's outstanding common stock. The shares may be repurchased from time to time in open market purchases, privately-negotiated transactions, block purchases, accelerated share repurchase agreements or a combination of methods and pursuant to safe harbors provided by Rule 10b-18 and Rule 1…

President and Chief Operating Officer — Brian D. Haney: Brian D. Haney is retiring from his role as President and Chief Operating Officer, with a successor named.

Results of Operations and Financial Condition. On October 23, 2025, Kinsale Capital Group, Inc. (the “Company”) issued a press release announcing its financial results for the three and nine months ended September 30, 2025. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

Results of Operations and Financial Condition. On July 24, 2025, Kinsale Capital Group, Inc. (the “Company”) issued a press release announcing its financial results for the three and six months ended June 30, 2025. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

The filing discloses the approval of an equity incentive plan, which is a compensatory arrangement rather than a change in management personnel.

Results of Operations and Financial Condition. On April 24, 2025, Kinsale Capital Group, Inc. (the “Company”) issued a press release announcing its financial results for the three months ended March 31, 2025. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

Director — James J. Ritchie: The filing discloses a director's decision not to stand for re-election, which is a routine board composition change rather than the departure of a senior executive officer.

Results of Operations and Financial Condition. On February 13, 2025, Kinsale Capital Group, Inc. (the “Company”) issued a press release announcing its financial results for the fourth quarter and year ended December 31, 2024. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

Results of Operations and Financial Condition. On October 24, 2024, Kinsale Capital Group, Inc. (the “Company”) issued a press release announcing its financial results for the three and nine months ended September 30, 2024. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

Director — Mary Jane B. Fortin: The filing discloses the routine election of a new director to the board in connection with a board size increase, which is a standard governance event rather than an executive departure.

Results of Operations and Financial Condition. On July 25, 2024, Kinsale Capital Group, Inc. (the “Company”) issued a press release announcing its financial results for the three and six months ended June 30, 2024. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

Results of Operations and Financial Condition. On April 25, 2024, Kinsale Capital Group, Inc. (the “Company”) issued a press release announcing its financial results for the three months ended March 31, 2024. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K.