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AI Earnings Predictions for Sierra Bancorp (BSRR)

Machine learning predictions based on historical earnings data and price patterns

Latest Prediction

BUY

1-Day Prediction

+2.55%

$38.08

100% positive prob.

5-Day Prediction

+3.62%

$38.47

100% positive prob.

20-Day Prediction

+5.05%

$39.00

95% positive prob.

Price at prediction: $37.13 Confidence: 100.0% Model AUC: 1.0000 Quarter: Q4 2025

Earnings Transcripts

SEC 8-K filings with transcript text

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2025
Q4

Q4 2025 Earnings

8-K BUY

Feb 2, 2026 · 100% conf.

AI Prediction BUY

1D

+2.55%

$38.08

5D

+3.62%

$38.47

20D

+5.05%

$39.00

Price: $37.13 Prob +5D: 100% AUC: 1.000
0001104659-26-008973

SIERRA BANCORP_February 2, 2026 0001130144false00011301442026-02-022026-02-02 ​ ​

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)

​ ​

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 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

​ ​ ​

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)

​ ​

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

​ ​ ​

2025
Q3

Q3 2025 Earnings

8-K

Oct 27, 2025

0001104659-25-102359

SIERRA BANCORP_October 27, 2025 0001130144false00011301442025-10-272025-10-27 ​ ​

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) October 27, 2025

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 2.02RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On October 27, 2025, Sierra Bancorp issued a press release announcing its unaudited consolidated financial results for the three- and nine-month periods ended September 30, 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

​ ​ ​

99.1 ​ Press release issued by Sierra Bancorp dated October 27, 2025

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. ​ ​ ​ ​ ​

​ Executive Vice President & Chief Financial Officer

​ ​ ​ ​ Dated: October 27, 2025

SIERRA BANCORP

By: /s/ Christopher G. Treece​ ​ Christopher G. Treece Executive Vice President & Chief Financial Officer

​ ​ ​

2025
Q2

Q2 2025 Earnings

8-K

Jul 28, 2025

0001558370-25-009640

0001130144false00011301442025-07-282025-07-28 ​ ​

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) July 28, 2025

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 2.02RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On July 28, 2025, Sierra Bancorp issued a press release announcing its unaudited consolidated financial results for the three- and six-month periods ended June 30, 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

19

Exhibit No.

Description

​ ​ ​

99.1 ​ Press release issued by Sierra Bancorp dated July 28, 2025

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. ​ ​ ​ ​ ​

​ Executive Vice President & Chief Financial Officer

​ ​ ​ ​ Dated: July 28, 2025

SIERRA BANCORP

By: /s/ Christopher G. Treece​ ​ Christopher G. Treece Executive Vice President & Chief Financial Officer

​ ​

2025
Q1

Q1 2025 Earnings

8-K

Apr 28, 2025

0001558370-25-005624

0001130144false00011301442025-04-282025-04-28 ​ ​

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 28, 2025

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 2.02RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On April 28, 2025, Sierra Bancorp issued a press release announcing its unaudited consolidated financial results for the three-month period ended March 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

19

Exhibit No.

Description

​ ​ ​

99.1 ​ Press release issued by Sierra Bancorp dated April 28, 2025

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. ​ ​ ​ ​ ​

​ Executive Vice President & Chief Financial Officer

​ ​ ​ ​ Dated: April 28, 2025

SIERRA BANCORP

By: /s/ Christopher G. Treece​ ​ Christopher G. Treece Executive Vice President & Chief Financial Officer

​ ​

2024
Q4

Q4 2024 Earnings

8-K

Jan 27, 2025

0001558370-25-000431

0001130144false00011301442025-01-272025-01-27 ​ ​

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 27, 2025

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 2.02RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On January 27, 2025, Sierra Bancorp issued a press release announcing its unaudited consolidated financial results for the quarter and year ended December 31, 2024. 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

​ ​ ​

99.1 ​ Press release issued by Sierra Bancorp dated January 27, 2025

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. ​ ​ ​ ​ ​

​ Executive Vice President & Chief Financial Officer

​ ​ ​ ​ Dated: January 27, 2025

SIERRA BANCORP

By: /s/ Christopher G. Treece​ ​ Christopher G. Treece Executive Vice President & Chief Financial Officer

​ ​ ​

2024
Q3

Q3 2024 Earnings

8-K

Oct 21, 2024

0001558370-24-013406

0001130144false00011301442024-10-212024-10-21 ​ ​

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) October 21, 2024

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 2.02RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On October 21, 2024, Sierra Bancorp issued a press release announcing its unaudited consolidated financial results for the three- and nine-month periods ended September 30, 2024.  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

​ ​ ​

99.1 ​ Press release issued by Sierra Bancorp dated October 21, 2024

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. ​ ​ ​ ​ ​

​ Executive Vice President & Chief Financial Officer

​ ​ ​ ​ Dated: October 21, 2024

SIERRA BANCORP

By: /s/ Christopher G. Treece​ ​ Christopher G. Treece Executive Vice President & Chief Financial Officer

​ ​ ​

2024
Q2

Q2 2024 Earnings

8-K

Jul 22, 2024

0001558370-24-009927

0001130144false00011301442024-07-222024-07-22 ​ ​

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) July 22, 2024

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 2.02RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On July 22, 2024, Sierra Bancorp issued a press release announcing its unaudited consolidated financial results for the three- and six-month periods ended June 30, 2024.  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

19

Exhibit No.

Description

​ ​ ​

99.1 ​ Press release issued by Sierra Bancorp dated July 22, 2024

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. ​ ​ ​ ​ ​

​ Executive Vice President & Chief Financial Officer

​ ​ ​ ​ Dated: July 22, 2024

SIERRA BANCORP

By: /s/ Christopher G. Treece​ ​ Christopher G. Treece Executive Vice President & Chief Financial Officer

​ ​

2024
Q1

Q1 2024 Earnings

8-K

Apr 22, 2024

0001558370-24-005393

0001130144false00011301442024-04-222024-04-22 ​ ​

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 22, 2024

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 2.02RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On April 22, 2024, Sierra Bancorp issued a press release announcing its unaudited consolidated financial results for the three-month period ended March 31, 2024.  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

19

Exhibit No.

Description

​ ​ ​

99.1 ​ Press release issued by Sierra Bancorp dated April 22, 2024

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. ​ ​ ​ ​ ​

​ Executive Vice President & Chief Financial Officer

​ ​ ​ ​ Dated: April 22, 2024

SIERRA BANCORP

By: /s/ Christopher G. Treece​ ​ Christopher G. Treece Executive Vice President & Chief Financial Officer

​ ​

2023
Q4

Q4 2023 Earnings

8-K

Jan 29, 2024

0001558370-24-000606

0001130144false00011301442024-01-292024-01-29 ​ ​

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 29, 2024

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 2.02RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On January 29, 2024, Sierra Bancorp issued a press release announcing its unaudited consolidated financial results for the quarter and year ended December 31, 2023. 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

​ ​ ​

99.1 ​ Press release issued by Sierra Bancorp dated January 29, 2024

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. ​ ​ ​ ​ ​

​ Executive Vice President & Chief Financial Officer

​ ​ ​ ​ Dated: January 29, 2024

SIERRA BANCORP

By: /s/ Christopher G. Treece​ ​ Christopher G. Treece Executive Vice President & Chief Financial Officer

​ ​ ​

2023
Q3

Q3 2023 Earnings

8-K

Oct 23, 2023

0001558370-23-016594

0001130144false00011301442023-10-232023-10-23 ​ ​

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) October 23, 2023

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 2.02RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On October 23, 2023, Sierra Bancorp issued a press release announcing its unaudited consolidated financial results for the three- and nine-month periods ended September 30, 2023.  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

​ ​ ​

99.1 ​ Press release issued by Sierra Bancorp dated October 23, 2023

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. ​ ​ ​ ​ ​

​ Executive Vice President & Chief Financial Officer

​ ​ ​ ​ Dated: October 23, 2023

SIERRA BANCORP

By: /s/ Christopher G. Treece​ ​ Christopher G. Treece Executive Vice President & Chief Financial Officer

​ ​ ​

2023
Q2

Q2 2023 Earnings

8-K

Jul 24, 2023

0001558370-23-012116

0001130144false00011301442023-07-242023-07-24 ​ ​

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) July 24, 2023

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 2.02RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On July 24, 2023, Sierra Bancorp issued a press release announcing its unaudited consolidated financial results for the three- and six-month periods ended June 30, 2023.  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

19

Exhibit No.

Description

​ ​ ​

99.1 ​ Press release issued by Sierra Bancorp dated July 24, 2023

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. ​ ​ ​ ​ ​

​ Executive Vice President & Chief Financial Officer

​ ​ ​ ​ Dated: July 24, 2023

SIERRA BANCORP

By: /s/ Christopher G. Treece​ ​ Christopher G. Treece Executive Vice President & Chief Financial Officer

​ ​

2023
Q1

Q1 2023 Earnings

8-K

Apr 24, 2023

0001558370-23-006471

0001130144false00011301442023-04-242023-04-24 ​ ​

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 24, 2023

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 2.02RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On April 24, 2023, Sierra Bancorp issued a press release announcing its unaudited consolidated financial results for the three-month period ended March 31, 2023.  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

19

Exhibit No.

Description

​ ​ ​

99.1 ​ Press release issued by Sierra Bancorp dated April 24, 2023

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. ​ ​ ​ ​ ​

​ Executive Vice President & Chief Financial Officer

​ ​ ​ ​ Dated: April 24, 2023

SIERRA BANCORP

By: /s/ Christopher G. Treece​ ​ Christopher G. Treece Executive Vice President & Chief Financial Officer

​ ​

2022
Q4

Q4 2022 Earnings

8-K

Jan 30, 2023

0001558370-23-000678

0001130144false00011301442023-01-302023-01-30 ​ ​

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 30, 2023

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 2.02RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On January 30, 2023, Sierra Bancorp issued a press release announcing its unaudited consolidated financial results for the quarter and year ended December 31, 2022. 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

​ ​ ​

99.1 ​ Press release issued by Sierra Bancorp dated January 30, 2023

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. ​ ​ ​ ​ ​

​ Executive Vice President & Chief Financial Officer

​ ​ ​ ​ Dated: January 30, 2023

SIERRA BANCORP

By: /s/ Christopher G. Treece​ ​ Christopher G. Treece Executive Vice President & Chief Financial Officer

​ ​ ​

2022
Q3

Q3 2022 Earnings

8-K

Oct 24, 2022

0001558370-22-015215

0001130144false00011301442022-10-242022-10-24 ​ ​

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) October 24, 2022

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 2.02RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On October 24, 2022, Sierra Bancorp issued a press release announcing its unaudited consolidated financial results for the three- and nine-month periods ended September 30, 2022.  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

​ ​ ​

99.1 ​ Press release issued by Sierra Bancorp dated October 24, 2022

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. ​ ​ ​ ​ ​

​ Executive Vice President & Chief Financial Officer

​ ​ ​ ​ Dated: October 24, 2022

SIERRA BANCORP

By: /s/ Christopher G. Treece​ ​ Christopher G. Treece Executive Vice President & Chief Financial Officer

​ ​ ​

2022
Q2

Q2 2022 Earnings

8-K

Jul 25, 2022

0001558370-22-010948

0001130144false00011301442022-07-252022-07-25 ​ ​

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) July 25, 2022

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 2.02RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On July 25, 2022, Sierra Bancorp issued a press release announcing its unaudited consolidated financial results for the three- and six-month periods ended June 30, 2022.  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

19

Exhibit No.

Description

​ ​ ​

99.1 ​ Press release issued by Sierra Bancorp dated July 25, 2022

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. ​ ​ ​ ​ ​

​ Executive Vice President & Chief Financial Officer

​ ​ ​ ​ Dated: July 25, 2022

SIERRA BANCORP

By: /s/ Christopher G. Treece​ ​ Christopher G. Treece Executive Vice President & Chief Financial Officer

​ ​

2022
Q1

Q1 2022 Earnings

8-K

Apr 25, 2022

0001558370-22-005839

0001130144false00011301442022-04-252022-04-25 ​ ​

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 25, 2022

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 2.02RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On April 25, 2022, Sierra Bancorp issued a press release announcing its unaudited consolidated financial results for the three-month period ended March 31, 2022.  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

19

Exhibit No.

Description

​ ​ ​

99.1 ​ Press release issued by Sierra Bancorp dated April 25, 2022

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. ​ ​ ​ ​ ​

​ Executive Vice President & Chief Financial Officer

​ ​ ​ ​ Dated: April 25, 2022

SIERRA BANCORP

By: /s/ Christopher G. Treece​ ​ Christopher G. Treece Executive Vice President & Chief Financial Officer

​ ​

2021
Q4

Q4 2021 Earnings

8-K

Jan 24, 2022

0001558370-22-000370

0001130144false00011301442022-01-242022-01-24 ​ ​

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 24, 2022

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 2.02RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On January 24, 2022, Sierra Bancorp issued a press release announcing its unaudited consolidated financial results for the quarter and year ended December 31, 2021.  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

​ ​ ​

99.1 ​ Press release issued by Sierra Bancorp dated January 24, 2022

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. ​ ​ ​ ​ ​

​ Executive Vice President & Chief Financial Officer

​ ​ ​ ​ Dated: January 24, 2022

SIERRA BANCORP

By: /s/ Christopher G. Treece​ ​ Christopher G. Treece Executive Vice President & Chief Financial Officer

​ ​ ​

2021
Q3

Q3 2021 Earnings

8-K

Oct 25, 2021

0001558370-21-013432

0001130144false00011301442021-10-252021-10-25 ​ ​

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) October 25, 2021

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 2.02RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On October 25, 2021, Sierra Bancorp issued a press release announcing its unaudited consolidated financial results for the three- and nine-month periods ended September 30, 2021.  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

​ ​ ​

99.1 ​ Press release issued by Sierra Bancorp dated October 25, 2021

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. ​ ​ ​ ​ ​

​ Executive Vice President & Chief Financial Officer

​ ​ ​ ​ Dated: October 25, 2021

SIERRA BANCORP

By: /s/ Christopher G. Treece​ ​ Christopher G. Treece Executive Vice President & Chief Financial Officer

​ ​ ​

2021
Q2

Q2 2021 Earnings

8-K

Jul 19, 2021

0001558370-21-009000

0001130144false00011301442021-07-192021-07-19 ​ ​

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) July 19, 2021

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 2.02RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On July 19, 2021, Sierra Bancorp issued a press release announcing its unaudited consolidated financial results for the three- and six-month periods ended June 30, 2021.  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

19

Exhibit No.

Description

​ ​ ​

99.1 ​ Press release issued by Sierra Bancorp dated July 19, 2021

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. ​ ​ ​ ​ ​

​ Executive Vice President & Chief Financial Officer

​ ​ ​ ​ Dated: July 19, 2021

SIERRA BANCORP

By: /s/ Christopher G. Treece​ ​ Christopher G. Treece Executive Vice President & Chief Financial Officer

​ ​

2021
Q1

Q1 2021 Earnings

8-K

Apr 19, 2021

0001558370-21-004452

0001130144false00011301442021-04-192021-04-19 ​ ​

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 19, 2021

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 2.02RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On April 19, 2021, Sierra Bancorp issued a press release announcing its unaudited consolidated financial results for the three-month period ended March 31, 2021.  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

19

Exhibit No.

Description

​ ​ ​

99.1 ​ Press release issued by Sierra Bancorp dated April 19, 2021

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. ​ ​ ​ ​ ​

​ Executive Vice President & Chief Financial Officer

​ ​ ​ ​ Dated: April 19, 2021

SIERRA BANCORP

By: /s/ Christopher G. Treece​ ​ Christopher G. Treece Executive Vice President & Chief Financial Officer

​ ​

About Sierra Bancorp (BSRR) Earnings

This page provides Sierra Bancorp (BSRR) earnings call transcripts from SEC 8-K filings along with AI-powered predictions for post-earnings price movements. Our machine learning models analyze historical earnings data, pre-earnings price patterns, volume changes, and volatility to predict 1-day, 5-day, and 20-day returns after each earnings release.

Earnings transcripts are sourced directly from SEC EDGAR filings. Predictions are generated using gradient boosting models trained on BSRR's historical earnings reactions. All predicted returns are shown as percentages, and predicted prices are calculated from the closing price at the time of prediction. Past performance does not guarantee future results.

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