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BSRR · Current Report (Form 8-K) · Filed April 20, 2026

Sierra Bancorp — Current Report (Form 8-K)

Form
8-K
Filed
April 20, 2026
Period
Apr 20, 2026
Ticker
BSRR
Accession
0001104659-26-045351
Boardroom Alpha · Filing insights

Executive leadership realignment: Wade terminated as COO with severance; Treece elevated to COO; Wolfe named Principal Accounting Officer.

About Sierra Bancorp
Market cap
$501M
1Y TSR
+39.1%
3Y TSR
+35.1%
Board grade
B-
Sector
Financial Services
CEO
Kevin J McPhaill
Last annual meeting: May 20, 2026 · View full Sierra Bancorp profile →
SIERRA BANCORP_April 20, 2026

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) April 20, 2026

SIERRA BANCORP

(Exact name of registrant as specified in its charter)

California

000-33063

33-0937517

(State or other jurisdiction of incorporation)

(Commission File Number)

(IRS Employer Identification No.)

86 North Main Street, Porterville, CA 93257

(Address of principal executive offices)

(Zip code)

(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:

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.

Item 5.02Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

On April 17, 2026, Registrant and its wholly owned subsidiary, Bank of the Sierra (collectively, the “Company”), terminated the employment of William J. Wade II, Executive Vice President & Chief Operations Officer, as part of an organizational realignment. In connection with the termination and in accordance with his employment agreement dated July 7, 2025, Mr. Wade is entitled to severance of a payment equal to twelve (12) months’ salary and reimbursement for health insurance premiums for a period of twelve (12) months.  As a condition to receiving this severance, Mr. Wade must sign a release and waiver agreement in favor of the Company, the form of which was attached to his employment agreement, within 21 days of employment termination.

In connection with Mr. Wade’s termination, Christopher Treece, age 57, Executive Vice President & Chief Financial Officer will also assume the role of Chief Operations Officer. Mr. Treece has served as Executive Vice President and Chief Financial Officer of the Company since January 2020.  The Board of Directors of the Company approved an amendment to the employment agreement of Mr. Treece to reflect his new role and adjusted compensation of an increase of base salary by $25,000 per year to $466,000 per year as a result of his appointment as Chief Operations Officer. The amendment was signed and became effective on April 17, 2026.

On April 17, 2026, Marc Wolfe was appointed Principal Accounting Officer of the Company.  Mr. Wolfe, currently 35 years old, holds both a Bachelor of Business Administration and a Master of Business Administration from National University. Mr. Wolfe has been with the Company since September 2015, serving in roles of increasing responsibility within accounting and finance, including Assistant Controller and Financial Reporting Officer. On January 1, 2026, Mr. Wolfe was promoted to Senior Vice President and Corporate Controller. 

There are no arrangements or undertakings pursuant to which Mr. Wolfe was selected as Principal Accounting Officer. There are no family relationships among any of the Company’s directors or executive officers and Mr. Wolfe. There are no related party transactions between the Company and Mr. Wolfe.

Item 9.01financial Statements and Exhibits

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

EXHIBIT INDEX

Exhibit No.

  ​ ​ ​

Description

10.1

Second amendment to employment agreement effective as of April 17, 2026 for Christopher G. Treece, Chief Financial Officer & Chief Operating Officer

104

Cover Page Interactive Data File (formatted in Inline XBRL and contained in Exhibit 101)

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.

SIERRA BANCORP

Dated: April 20, 2026

By: 

/s/ Christopher G. Treece

Christopher G. Treece

Executive Vice President &

Chief Financial Officer

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Reference

Frequently asked questions

When did Sierra Bancorp file this 8-K?
Sierra Bancorp (BSRR) filed this Current Report (Form 8-K) with the SEC on April 20, 2026. The accession number assigned by EDGAR is 0001104659-26-045351.
What does an 8-K disclose?
Form 8-K is the SEC's current-report form, used to disclose material events between periodic reports (10-K / 10-Q). Triggers include CEO/CFO departures, acquisitions, bankruptcies, earnings releases, auditor changes, changes in fiscal year, and amendments to corporate governance. Each 8-K is keyed to one or more Item numbers (1.01 through 9.01).
What is the key takeaway from this filing?
Executive leadership realignment: Wade terminated as COO with severance; Treece elevated to COO; Wolfe named Principal Accounting Officer. This is Boardroom Alpha's one-line summary of the current report; see the full filing text above for the formal disclosure.
What Item codes does an 8-K cover?
An 8-K's Item codes (1.01 through 9.01) specify what kind of event is being disclosed — e.g. Item 1.01 for entering a material agreement, Item 5.02 for departure/election of directors and executive officers, Item 8.01 for other events. The Item codes for this 8-K appear in the filing text above.
Where can I find Sierra Bancorp's prior current reports on EDGAR?
The SEC EDGAR browser lists every 8-K Sierra Bancorp has filed under CIK 1130144, sortable by date. Use the "View on SEC EDGAR" link in the page header, or browse directly via https://www.sec.gov/cgi-bin/browse-edgar.
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