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| Exhibit # | | Description |
| 3.1 | | Restated Articles of Incorporation of Sierra Bancorp (1) |
| 3.2 | | Amended and Restated By-laws of Sierra Bancorp (2) |
| 4.1 | | Description of Securities (3) |
| 4.2 | | 3.25% Fixed to Floating Subordinated Debt issued September 24, 2021 (4) |
| 4.3 | | Indenture dated as of March 17, 2004, between U.S. Bank N.A., as Trustee, and Sierra Bancorp, as Issuer (7) |
| 4.4 | | Indenture dated as of June 15, 2006, between Wilmington Trust Co., as Trustee, and Sierra Bancorp, as Issuer (8) |
| 4.5 | | Indenture dated as of September 20, 2007, between Wilmington Trust Co., as Trustee, and Coast Bancorp, as Issuer (12) |
| 4.6 | | First Supplemental Indenture dated as of July 8, 2016, between Wilmington Trust Co. as Trustee, Sierra Bancorp as the “Successor Company”, and Coast Bancorp (12) |
| 10.1 | | Salary Continuation Agreement for James C. Holly (5)* |
| 10.2 | | Split Dollar Agreement and Amendment thereto for James C. Holly (6)* |
| 10.3 | | Director Retirement and Split dollar Agreements Effective October 1, 2002, for Albert Berra, Morris Tharp, and Gordon Woods (6)* |
| 10.4 | | 401 Plus Non-Qualified Deferred Compensation Plan (6)* |
| 10.5 | | Amended and Restated Declaration of Trust of Sierra Statutory Trust II, dated as of March 17, 2004 (7) |
| 10.6 | | Amended and Restated Declaration of Trust of Sierra Capital Trust III, dated as of June 15, 2006 (8) |
| 10.7 | | 2007 Stock Incentive Plan (9) |
| 10.8 | | Sample Retirement Agreement Entered into with Each Non-Employee Director Effective January 1, 2007 (10)* |
| 10.9 | | Salary Continuation Agreement for Kevin J. McPhaill (10)* |
| 10.10 | | First Amendment to the Salary Continuation Agreement for Kevin J. McPhaill (11)* |
| 10.11 | | Amended and Restated Declaration of Trust of Coast Bancorp Statutory Trust II, dated as of September 20, 2007 (12) |
| 10.12 | | 2017 Stock Incentive Plan (13)* |
| 10.13 | | Employment agreements dated as of December 27, 2018, for Kevin McPhaill, CEO and Michael Olague, Chief Banking Officer (14)* |
| 10.14 | | Employment agreement dated as of November 15, 2019, for Christopher Treece, Chief Financial Officer (15)* |
| 10.15 | | Employment agreement dated as of December 14, 2020, for Hugh Boyle, Chief Credit Officer (16)* |
| 10.16 | | Form Indemnification Agreement dated as of January 28, 2021, for Directors and Executive Officers (17)* |
| 10.17 | | Split Dollar Master Agreement and Election Form Effective October 1, 2002, for Kevin McPhaill (18)* |
| 10.18 | | First Amendments to employment agreements dated as of January 19, 2023 for Kevin McPhaill, CEO, Christopher Treece, CFO, Hugh Boyle, CCO, and Michael Olague, CBO (23)* |
| 10.19 | | Split Dollar Agreement for Albert Berra (19)* |
| 10.20 | | 2023 Equity Based Compensation Plan (20) * |
| 10.21 | | Employment agreement dated as of August 25, 2023, for Natalia Coen, Chief Risk Officer (21)* |
| 10.22 | | Employment agreement dated as of July 01, 2025, for William Wade, Chief Operating Officer (22)* |
| 31.1 | | Certification of Chief Executive Officer (Section 302 Certification) |
| 31.2 | | Certification of Chief Financial Officer (Section 302 Certification) |
| 32 | | Certification of Periodic Financial Report (Section 906 Certification) |
| 101.INS | | Inline XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document. |
| 101.SCH | | Inline XBRL Taxonomy Extension Schema Document |
| 101.CAL | | Inline XBRL Taxonomy Extension Calculation Linkbase Document |
| 101.DEF | | Inline XBRL Taxonomy Extension Definition Linkbase Document |
| 101.LAB | | Inline XBRL Taxonomy Extension Label Linkbase Document |
| 101.PRE | | Inline XBRL Taxonomy Extension Presentation Linkbase Document |
| 104 | | Cover Page Interactive Data File - The cover page interactive data file does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document. |