Core Commercial
Core Commercial net premiums written were $536.0 million for the three months ended June 30, 2025, compared to $513.4 million for the three months ended June 30, 2024. The $22.6 million increase in net premiums written was primarily driven by renewal price increases.
Core Commercial underwriting profit for the three months ended June 30, 2025 was $37.2 million, compared to $42.8 million for the three months ended June 30, 2024, a decrease of $5.6 million. Catastrophe losses for the three months ended June 30, 2025 were $22.7 million, compared to $16.4 million for the three months ended June 30, 2024, an increase of $6.3 million. Net favorable development on prior years’ loss reserves for the three months ended June 30, 2025 was $3.0 million, compared to $2.1 million for the three months ended June 30, 2024, an increase of $0.9 million.
Core Commercial current accident year underwriting profit, excluding catastrophes, was $56.9 million for the three months ended June 30, 2025, compared to $57.1 million for the three months ended June 30, 2024.
We continue to manage underwriting performance through rate actions, risk selection and mitigation, pricing segmentation, specific underwriting actions and targeted new business growth. Our ability to achieve overall rate increases is affected by many factors, including regulatory activity and the competitive pricing environment, particularly within the workers’ compensation line.
Specialty
Specialty net premiums written were $368.2 million for the three months ended June 30, 2025, compared to $352.1 million for the three months ended June 30, 2024. The $16.1 million increase in net premiums written was primarily due to renewal price increases.
Specialty underwriting profit for the three months ended June 30, 2025 was $47.8 million, compared to $22.0 million for the three months ended June 30, 2024, an increase of $25.8 million. Catastrophe losses for the three months ended June 30, 2025 were $14.6 million, compared to $22.1 million for the three months ended June 30, 2024, a decrease of $7.5 million. Net favorable development on prior years’ loss reserves for the three months ended June 30, 2025 was $12.5 million, compared to $11.3 million for the three months ended June 30, 2024, an increase of $1.2 million.
Specialty current accident year underwriting profit, excluding catastrophes, was $49.9 million for the three months ended June 30, 2025, compared to $32.8 million for the three months ended June 30, 2024. The $17.1 million increase in underwriting results was primarily driven by lower current accident year losses, primarily in our Specialty P&C, Marine and Professional and Executive lines of business.
We continue to manage underwriting performance through rate actions, risk selection and mitigation, pricing segmentation, specific underwriting actions and targeted new business growth. Our ability to achieve overall rate increases is affected by many factors, including regulatory activity and the competitive pricing environment.
Personal Lines
Personal Lines net premiums written were $679.6 million for the three months ended June 30, 2025, compared to $655.6 million for the three months ended June 30, 2024. The $24.0 million increase in net premiums written was primarily due to renewal price increases, improving retention, and increased new business, partially offset by fewer policies available to renew year over year from margin recapture actions taken.
Net premiums written in the personal automobile line of business were $389.3 million for the three months ended June 30, 2025, compared to $382.8 million for the three months ended June 30, 2024, an increase of $6.5 million. Personal automobile PIF decreased by 3.6% since June 30, 2024. Net premiums written in the homeowners and other lines of business for the three months ended June 30, 2025 were $290.3 million, compared to $272.8 million for the three months ended June 30, 2024, an increase of $17.5 million. Homeowners PIF decreased by 2.7% since June 30, 2024.
Personal Lines underwriting profit for the three months ended June 30, 2025 was $25.2 million, compared to an underwriting loss of $58.6 million for the three months ended June 30, 2024, an improvement in underwriting results of $83.8 million. Catastrophe losses for the three months ended June 30, 2025 were $70.2 million, compared to $118.6 million for the three months ended June 30, 2024, a decrease of $48.4 million. Net favorable development on prior years’ loss reserves for the three months ended June 30, 2025 was $2.6 million, compared to $4.0 million for the three months ended June 30, 2024, a decrease of $1.4 million.
Personal Lines current accident year underwriting profit, excluding catastrophes, was $92.8 million for the three months ended June 30, 2025, compared to $56.0 million for the three months ended June 30, 2024. The $36.8 million increase in underwriting results was primarily due to lower current accident year losses in our homeowners and personal automobile lines and, to a lesser extent, earned premium growth. The improved Personal Lines current accident year underwriting results were primarily due to the benefit of earned pricing outpacing loss trends in both homeowners and personal automobile lines, and moderated frequency trends, particularly in homeowners and automobile collision coverages.
We have been taking actions to improve financial results and reduce volatility within our Personal Lines segment. These actions include increasing pricing, changing certain policy terms and conditions, and being more selective on new business quoting, where permissible, around certain geographies, driver and vehicle history, and building and roof condition type. We were able to obtain pricing increases of