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Debt and Credit Facilities
6 Months Ended
Jun. 30, 2026
Debt Disclosure [Abstract]  
Debt and Credit Facilities Debt and Credit Facilities
Debt

On June 10, 2025, Hamilton Group entered into a $150 million term loan credit arrangement (the "Facility") with various lenders as arranged by Wells Fargo Securities, LLC. The Facility replaces Hamilton Group's $150 million term loan credit agreement, as amended through and including June 23, 2022, between Hamilton Group and the lenders thereto (as amended the "Existing Loan Agreement"). The Facility will be used to refinance the indebtedness outstanding under the Existing Loan Agreement. All or a portion of the loan issued under the Facility bears interest, at the option of Hamilton Group, at either (a) a base rate plus an applicable margin or (b) the Adjusted Term Secured Overnight Financing Rate ("SOFR") plus an applicable margin, in each case with the applicable margin determined with reference to the Company's long-term issuer default rating as assigned by Fitch. The Facility matures on June 9, 2028, unless accelerated pursuant to the terms of the Facility, and it contains usual and customary representations, warranties, conditions and covenants for bank loan facilities of this type. The Facility also includes financial covenants, including a financial strength rating test, a minimum consolidated tangible net worth test and a maximum consolidated indebtedness to total capitalization ratio. As at June 30, 2026, the Company was in compliance with all covenants.

The following table presents the gross outstanding loan balance, loan fair value and unamortized loan issuance costs:

($ in thousands)June 30,
2026
December 31,
2025
Outstanding loan balance$150,000 $150,000 
Loan fair value150,396 150,280 
Unamortized loan issuance costs$205 $257 

Debt issuance costs are amortized over the period during which the Facility is outstanding, as an offset to net investment income (loss). The Company amortized debt issuance costs of $0.1 million or less in each of the three and six months ended June 30, 2026 and 2025. The Company’s debt is classified as Level 3 within the fair value hierarchy because it is valued using an income approach, which utilizes a discounted cash flow technique that considers the credit profile of the Company.

Credit Facilities

The Company has several available letter of credit ("LOC") facilities and a revolving loan facility provided by commercial banks. The LOC facilities are utilized to provide collateral to reinsureds of Hamilton Re and its affiliates to the extent required under insurance and reinsurance agreements and to support capital requirements at Lloyd’s.

On December 5, 2018 and December 27, 2018, Hamilton Re entered into a Master Agreement for Issuance of Payment Instruments and a Facility Letter for Issuance of Payment Instruments with CitiBank Europe Plc ("CitiBank Europe"), under which CitiBank Europe agreed to provide an uncommitted secured letter of credit facility for the issuance of standby letters of credit or similar instruments in multiple currencies. On November 15, 2024, letter of credit capacity under this facility was increased to $250 million. At all times during which it is a party to the facility, Hamilton Re is obligated to pledge to CitiBank Europe cash and/or securities with a value that equals or exceeds the aggregate face amount of its then-outstanding letters of credit. The Master Agreement contains events of default customary for facilities of this type. In the facility letter, Hamilton Re makes representations and warranties that are customary for facilities of this type and agrees that it will comply with certain informational and other undertakings.

On June 10, 2025, Hamilton Group and Hamilton Re entered into a $450 million credit agreement with a syndication of lenders (the "Unsecured Facility"). Under the Unsecured Facility, the lenders have agreed to provide up to an aggregate of $450 million of letter of credit capacity for Hamilton Re, up to $150 million of which may be utilized for revolving loans to be issued to Hamilton Group. At June 30, 2026, there were no loan amounts outstanding under the Unsecured Facility. Letters of credit issued under the Unsecured Facility bear interest at a rate determined by Hamilton Group’s long-term issuer default rating, while revolving loans, if drawn, accrue interest at the option of Hamilton Group at either (a) a base rate plus an applicable margin or (b) Adjusted Term SOFR plus an applicable margin. In each case, the applicable margin is determined based on Hamilton Group’s long-term issuer default rating as assigned by Fitch. Currently, any letters of credit issued under the facility bear interest at a rate of 125 basis points. Revolving loans, if issued, are subject to a fee equal to the prime rate plus 50 basis points or Adjusted Term SOFR plus a margin of 150 basis points. To the extent such loans are issued, the available letter of
credit capacity shall decrease proportionally, such that the aggregate credit exposure for the lenders under the Unsecured Facility is $450 million. Amounts unutilized under the Unsecured Facility are subject to a fee based upon Hamilton Group's long-term issuer default rating as assigned by Fitch, currently equal to 17.5 basis points. The Unsecured Facility is subject to representations and warranties, affirmative and negative covenants and events of default that the Company considers customary for similar facilities. The Unsecured Facility also includes financial covenants, including a financial strength rating test, a minimum consolidated tangible net worth test and a maximum consolidated indebtedness to total capitalization ratio. Capacity is provided by Wells Fargo, National Association, Truist Bank, Commerzbank AG, New York Branch, Citizens Bank, N.A., HSBC Bank USA, National Association, and Barclays Bank PLC. Unless renewed or otherwise terminated in accordance with its terms, the Unsecured Facility has a maturity date of June 9, 2028.

On October 23, 2025, Hamilton Re amended its letter of credit facility agreement with UBS AG ("UBS") under which UBS and certain of its affiliates agreed to make available to Hamilton Re a secured letter of credit facility in an amount that is equal to the greater of (i) $25 million and (ii) the LOC amount issued and outstanding, provided that the amount shall not at any time be greater than $75 million, for a term that will expire on October 23, 2026. The facility bears a fee of 140 basis points on the total available capacity.

In addition, on October 20, 2025, Hamilton Re amended the unsecured letter of credit facility agreement that it utilizes to provide Funds at Lloyd's ("FAL") ("FAL LOC Facility") to support the FAL requirements of Syndicate 4000. Capacity is provided by ING Bank N.V., London Branch, Commerzbank AG, New York Branch, and Deutsche Bank AG, London Branch. The FAL LOC Facility was renewed in the amount of $260 million for a term that expires on December 31, 2029. The facility bears a fee of 150 basis points on the borrowed amount.

The Company’s obligations under its credit facilities require Hamilton Group, Hamilton Re and the other parties thereto to comply with various financial and reporting covenants. All applicable entities were in compliance with all such covenants at June 30, 2026.

Certain of the Company's credit facilities are secured by pledged interests in the TS Hamilton Fund, the Company's fixed income security portfolio, or cash. The Company’s credit facilities and associated securities pledged, were as follows:

($ in thousands)
June 30,
2026
Available letter of credit and revolving loan facilities - commitments
$1,001,584
Available letter of credit and revolving loan facilities - in use
787,552

Security pledged under letter of credit and revolving loan facilities:
   Pledged interests in TS Hamilton Fund
$106,459
   Pledged interests in fixed income portfolio
253,230
Cash(1)
2,269
(1) Cash pledged as security under letter of credit and revolving loan facilities is included in restricted cash securing other underwriting obligations under Pledged Assets in Note 3, Investments.
The Company has recognized interest expense related to its debt and credit facilities of $4.8 million and $4.7 million for the three months ended June 30, 2026 and 2025, respectively, and $9.5 million and $10.3 million for the six months ended June 30, 2026 and 2025, respectively.