HARTFORD INSURANCE GROUP, INC.

Reportable Segment and Corporate Operating Summaries

Business Insurance - Results of Operations

[1]For additional information on current accident year catastrophes and prior accident year development, see MD&A - Critical Accounting Estimates, Property & Casualty Insurance Product Reserves, Net of Reinsurance and Note 9 - Reserve for Unpaid Losses and Loss Adjustment Expenses of Notes to Condensed Consolidated Financial Statements.

[3]Includes integration costs in connection with the 2019 acquisition of Navigators Group.

[4]For discussion of income taxes, see Note 12 - Income Taxes of Notes to Condensed Consolidated Financial Statements.

Premium Measures

[1]Except for net new business premium, metrics for middle market exclude loss sensitive and programs businesses.

[2]Excludes Global Re and is before ceded reinsurance.

[3]Excludes Global Re, offshore energy policies, credit and political risk insurance ("CPRI") policies, political violence and terrorism ("PV&T") policies, and any business under which the managing agent of our Lloyd's Syndicate delegates underwriting authority to coverholders and other third parties.

Underwriting Ratios

Net income increased primarily due to higher net investment income and lower net realized losses. For further discussion of investment results, see MD&A - Investment Results.

Underwriting Gain

Underwriting gain decreased slightly due to unfavorable prior accident year development in the current year, higher underwriting expenses, and a slightly higher underlying loss and LAE ratio, largely offset by earned premium growth and lower CAY catastrophe losses.

Expense ratio is generally consistent with the prior year, with staffing costs and investments in our business being partially offset by the impact of earned premium growth.

[1]Other earned premiums of $16 and $18 for the three months ended March 31, 2025, and 2026, respectively.

Written Premiums

[1]Other written premiums of $16 and $18 for the three months ended March 31, 2025, and 2026, respectively.

Earned premiums increased due to written premium increases over the prior twelve months.

Written premiums increased driven by growth across small business, middle & large business and global specialty.

•Small business written premium increased driven by renewal written price increases in almost all lines, as well as higher new business premium. Written premium grew across all lines of business.

•Middle & large business written premium increased driven by renewal written price increases in almost all lines. Written premium grew across industry verticals and the large and complex lines, partially offset by decreases in general industries and large property.

•Global specialty written premium increased, driven by growth in the global reinsurance portfolio, primarily within credit risk and specialty casualty. Excluding global reinsurance, written premium declined modestly, reflecting lower construction-related volumes. This was partially offset by growth in non-construction new business and renewal pricing increases.

Renewal written price increases were recognized in most lines, though have moderated from the prior year.

•In small business, renewal written price increases were lower than prior year levels overall, with single-digit price increases across package business and automobile. Workers' compensation pricing was slightly negative.

•In middle market, renewal written price increases were lower than prior year levels overall, with mid single-digit to low double-digit price increases in most lines. Workers' compensation pricing was positive.

•In global specialty, renewal written price increases were lower than prior year levels with mid single-digit price increases overall.

Underlying Loss and Loss Adjustment Expense Ratio

Underlying Loss and Loss Adjustment Expense Ratio increased primarily due to a slightly higher loss ratio in a few lines.

Catastrophes and Unfavorable (Favorable) Prior Accident Year Development

Current accident year catastrophe losses for the three months ended March 31, 2026 included losses from winter storms across several regions, but concentrated in the Northeast, and to a lesser extent, the South, Mid Atlantic and Southeast regions, as well as losses from tornado, wind and hail events across several regions, but concentrated in the Midwest region, and to a lesser extent, the South region.

Current accident year catastrophe losses for the three months ended March 31, 2025 included a loss of $207 from the January 2025 California Wildfire Event, as well as tornado, wind and hail events primarily in the South and Midwest regions.

Prior accident year development was net unfavorable for the three months ended March 31, 2026 and included reserve increases for general liability related to exposures from the 1970s and 1980s, partially offset by decreases in workers' compensation.

Prior accident year development was net favorable for the three months ended March 31, 2025 and primarily included reserve decreases for workers' compensation. Also included is a benefit of $32 related to amortization of the Navigators ADC deferred gain.The Navigators' ADC deferred gain has been fully amortized as of September 30, 2025. For additional information regarding the Navigators ADC reinsurance agreement, refer to Note 9 - Reserve for Unpaid Losses and Loss Adjustment Expenses of Notes to Condensed Consolidated Financial Statements.