RLI CORP

For the period ended Oct 19, 2026. Filed Oct 19, 2026.

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A notice of a major event between regular reports, such as results, a deal or a change of executives. It is often the first formal record of the news.

Oct 19, 2026 · Filed Oct 19, 2026

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RLI$68.35-2.0%Stored close · as of Nov 6, 2026

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Contents

EX-99.1 · UNDERWRITING SEGMENT DATA

UNDERWRITING SEGMENT DATA


Three Months Ended September 30,
· · · GAAP · · · GAAP · · GAAP · · · GAAP ·
· · Casualty · · Ratios · · Property · · Ratios · · Surety · · Ratios · · Total · · Ratios
2026

Gross premiums written	$330,937		$152,373		$38,937		$522,247
Net premiums written	275,573		118,302		35,408		429,283
Net premiums earned	262,177		126,520		36,217		424,914
Net loss & settlement expenses	168,087	64.1%	31,103	24.6%	2,151	5.9%	201,341	47.4%
Net operating expenses	93,050	35.5%	44,991	35.5%	26,763	73.9%	164,804	38.8%
Underwriting income (1)	$1,040	99.6%	$50,426	60.1%	$7,303	79.8%	$58,769	86.2%

2025

Gross premiums written	$317,063		$154,631		$38,527		$510,221
Net premiums written	263,395		109,007		34,924		407,326
Net premiums earned	243,508		126,689		37,498		407,695
Net loss & settlement expenses	150,912	62.0%	32,815	25.9%	4,271	11.4%	187,998	46.1%
Net operating expenses	88,110	36.2%	43,450	34.3%	27,592	73.6%	159,152	39.0%
Underwriting income (1)	$4,486	98.2%	$50,424	60.2%	$5,635	85.0%	$60,545	85.1%


Nine Months Ended September 30,
· · · GAAP · · · GAAP · · GAAP · · GAAP
· · Casualty · · Ratios · · Property · · Ratios · · Surety · · Ratios · · Total · · Ratios
2026

Gross premiums written	$976,950		$506,412		$122,421		$1,605,783
Net premiums written	821,080		398,369		112,188		1,331,637
Net premiums earned	767,665		376,684		109,047		1,253,396
Net loss & settlement expenses	480,605	62.6%	91,682	24.3%	12,193	11.2%	584,480	46.6%
Net operating expenses	276,985	36.1%	132,892	35.3%	82,574	75.7%	492,451	39.3%
Underwriting income (1)	$10,075	98.7%	$152,110	59.6%	$14,280	86.9%	$176,465	85.9%

2025

Gross premiums written	$902,127		$536,500		$124,981		$1,563,608
Net premiums written	755,247		391,662		114,567		1,261,476
Net premiums earned	707,194		389,897		110,853		1,207,944
Net loss & settlement expenses	438,007	61.9%	103,999	26.7%	7,808	7.0%	549,814	45.5%
Net operating expenses	254,341	36.0%	129,048	33.1%	81,420	73.5%	464,809	38.5%
Underwriting income (1)	$14,846	97.9%	$156,850	59.8%	$21,625	80.5%	$193,321	84.0%

(1)	See discussion above: Non-GAAP and Performance Measures.

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