Sierra Bancorp posts Q4 and 2025 results update

Sierra Bancorp filed a current report to let investors know it has released unaudited consolidated financial results for the quarter and year ended December 31, 2025.

Rhea-AI Filing Summary

Sierra Bancorp filed a current report to let investors know it has released unaudited consolidated financial results for the quarter and year ended December 31, 2025. The results are contained in a press release dated February 2, 2026, attached as Exhibit 99.1.

The company is furnishing this information under Item 2.02 of the Exchange Act, meaning it is not treated as formally filed for liability purposes. The report is signed by Executive Vice President and Chief Financial Officer Christopher G. Treece.

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, or exhibit attachments filed with this report.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did Sierra Bancorp (BSRR) disclose in this 8-K filing?

Sierra Bancorp disclosed that it issued a press release with unaudited consolidated financial results. The report covers the quarter and full year ended December 31, 2025, and the press release is attached as Exhibit 99.1 to the Form 8-K.

Which period do Sierra Bancorp’s latest financial results cover?

The financial results cover the quarter and year ended December 31, 2025. These unaudited consolidated results are summarized in a press release dated February 2, 2026, which Sierra Bancorp furnished as Exhibit 99.1 to its Form 8-K current report.

How did Sierra Bancorp make its Q4 and 2025 results available to investors?

Sierra Bancorp made its results available through a press release dated February 2, 2026. That press release, containing unaudited consolidated financial results for the quarter and year ended December 31, 2025, is attached to the Form 8-K as Exhibit 99.1.

Are Sierra Bancorp’s disclosed results considered filed or furnished?

The results are considered furnished, not filed, under Item 2.02 of the Exchange Act. This means the press release in Exhibit 99.1 is not subject to certain liabilities that apply to filed information, such as those under Section 18 of the Exchange Act.

Who signed Sierra Bancorp’s Form 8-K for the Q4 and 2025 results?

Executive Vice President and Chief Financial Officer Christopher G. Treece signed the Form 8-K. His signature indicates the report, including the attached press release with unaudited consolidated financial results, was authorized on behalf of Sierra Bancorp.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 02/02/2026 - 08:01 AM EST Learn about SEC filing dates

0001130144false00011301442026-02-022026-02-02

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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) February 2, 2026

SIERRA BANCORP

(Exact name of registrant as specified in its charter)

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California	000-33063	33-0937517
(State or other jurisdiction of incorporation)	(Commission File Number)	(IRS Employer Identification No.)

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86 North Main Street, Porterville, CA 93257
(Address of principal executive offices)	(Zip code)

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(559) 782-4900

(Registrant’s telephone number including area code)

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 (see General Instruction A.2. below):

☐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 Act:

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Title of each class	​	Trading Symbol(s)	​	Name of each exchange on which registered
Common Stock, no par value	​	BSRR	​	NASDAQ Global Select Market

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 2.02RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On February 2, 2026, Sierra Bancorp issued a press release announcing its unaudited consolidated financial results for the quarter and year ended December 31, 2025. A copy of the press release is attached as Exhibit 99.1 to this Current Report.

The information in this report (including Exhibit 99.1) is being furnished pursuant to Item 2.02 and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, (the “Exchange Act”) or otherwise subject to the liabilities of that section, nor shall it be deemed to be incorporated by reference in any filing under the Securities Act of 1933 or the Exchange Act.

ITEM 9.01FINANCIAL STATEMENTS AND EXHIBITS

(d)Exhibits. The information required to be furnished pursuant to this item is set forth in the Exhibit Index which appears below, immediately before the signatures.

EXHIBIT INDEX

Exhibit No.	​ ​ ​	Description
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99.1	​	Press release issued by Sierra Bancorp dated February 2, 2026
104	​	Cover Page Interactive Data File (formatted in Inline XBRL and contained in Exhibit 101)

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SIGNATURES

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

​ ​ ​ ​ ​	​ Executive Vice President & Chief Financial Officer
​ ​ ​ ​ Dated: February 2, 2026	SIERRA BANCORP By: /s/ Christopher G. Treece​ ​ Christopher G. Treece Executive Vice President & Chief Financial Officer

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