Material Agreement, Financial Obligation (Form 8-K)

Item 1.01 Entry into a Material Definitive Agreement

On June 9, 2026, Safety Insurance Group, Inc. (the "Company") entered into Amendment No. 7 (the "Amendment") to its Amended and Restated Revolving Credit Agreement (the "Credit Agreement") with Citizens Bank, N.A., as administrative agent, and the lenders party thereto.

The Amendment, among other things, increases the aggregate committed amount of the revolving credit facility from $50 million to $100 million and extends the maturity date of the facility to June 9, 2031. As of the date of this Current Report on Form 8-K, the Company has not drawn any of the additional amounts available under the Credit Agreement in connection with the Amendment.

Except as described above, the Amendment does not materially modify the other terms of the Credit Agreement. The obligations under the Credit Agreement continue to be secured by certain accounts receivable and related assets of the Company, as more fully described in the Credit Agreement.

The foregoing description of the Amendment is a summary and is qualified in its entirety by reference to the full text of the Amendment, which is filed as Exhibit 10.1 to this Current Report on Form 8-K and is incorporated herein by reference.

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Item 2.03 Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant.

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The information set forth under Item 1.01 is incorporated herein by reference.

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