RLI Corp. (RLI) outlines Q4 and full-year 2025 results release

Rhea-AI Filing Summary

RLI Corp. filed a current report stating that it has released its financial results for the fourth quarter and full year ended December 31, 2025. The company reported that these results were announced on January 21, 2026 and are detailed in a press release.

The press release is furnished as Exhibit 99.1 to the report and is incorporated by reference, but is not deemed filed for liability purposes under the Exchange Act. No specific revenue, earnings, or balance sheet figures are included in this report itself.

8-K Event Classification

2 items: 2.02, 9.01

2 items

Item 2.02 Results of Operations and Financial Condition Financial

Disclosure of earnings results, typically an earnings press release or preliminary financials.

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, and exhibit attachments filed with this report.

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of

The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): January 21, 2026

RLI Corp.

(Exact name of registrant as specified in its charter)

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Delaware	​	001-09463	​	37-0889946
(State or other jurisdiction	​	(Commission	​	(IRS Employer
of incorporation)	​	File Number)	​	Identification No.)

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9025 North Lindbergh Drive, Peoria, IL	​	61615
(Address of principal executive offices)	​	(Zip Code)

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Registrant’s telephone number, including area code: (309) 692-1000

Not applicable

(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Securities Exchange Act of 1934:

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Title of each class	​ ​ ​	Trading Symbol	​ ​ ​	Name of each exchange on which registered
Common Stock $0.01 par value	​	RLI	​	New York Stock Exchange

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Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

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Item 2.02 Results of Operations and Financial Condition.

On January 21, 2026, RLI Corp. announced its results of operations for the fourth quarter and year ended December 31, 2025. Furnished as Exhibit 99.1 and incorporated herein by reference is the press release issued by RLI Corp.

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Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

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Exhibit No.	​ ​ ​	Description
​	​	​
99.1	​	Press Release dated January 21, 2026. This Exhibit is furnished pursuant to Item 2.02 hereof and should not be deemed to be “filed” under the Securities Exchange Act of 1934.
104	​	Cover Page Interactive Data File (embedded within the Inline XBRL document).

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

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​	RLI CORP.
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Date: January 21, 2026	By:	/s/ Aaron P. Diefenthaler
​	​	Aaron P. Diefenthaler
​		Chief Financial Officer

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FAQ

What did RLI (RLI) disclose in this Form 8-K?

RLI Corp. disclosed that it announced its results of operations for the fourth quarter and full year ended December 31, 2025, with details provided in a furnished press release.

Which period’s results are covered by RLI Corp.’s latest announcement?

The announcement covers RLI Corp.’s financial results for the fourth quarter and the full year ended December 31, 2025.

Where can investors find the detailed Q4 and full-year 2025 results for RLI Corp.?

Detailed results are contained in the press release furnished as Exhibit 99.1, which is incorporated by reference into the report.

Are the RLI Corp. earnings figures considered filed with the SEC?

The press release with the results is furnished as Exhibit 99.1 and is specifically stated as not being deemed “filed” under the Securities Exchange Act of 1934.

What SEC item does RLI Corp. use for this earnings disclosure?

RLI Corp. reports its earnings announcement under Item 2.02, Results of Operations and Financial Condition.

Who signed the RLI Corp. Form 8-K for the Q4 and 2025 results?

The report was signed on behalf of RLI Corp. by Aaron P. Diefenthaler, Chief Financial Officer.