Other Events. On July 15, 2026 Plumas Bancorp ’ s Board of Directors declared a quarterly cash dividend in the amount of $0.33 per common share payable on August 17, 2026 to shareholders of record at the close of business day on August 3, 2026. SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. July 15, 2026 PLUMAS BANCORP By: /s/ Richard L. Belstock N…

Results of Operations and Financial Condition". The information contained herein and in the accompanying Exhibit 99.1 shall not be incorporated by reference into any filing of the Registrant, whether made before or after the date hereof, regardless of any general incorporation language in such filing, unless expressly incorporated by specific reference to such filing. The information in this report, including the exhibit hereto, shall not be deemed to be "filed" for purposes of Section 18 of…

Principal Accounting Officer — Kelsey Cassinelli: The company hired a new Principal Accounting Officer from an external firm.

Other Events. On April 15, 2026 Plumas Bancorp ’ s Board of Directors declared a quarterly cash dividend in the amount of $0.33 per common share payable on May 15, 2026 to shareholders of record at the close of business day on May 1, 2026. SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. April 15, 2026 PLUMAS BANCORP By: /s/ Richard L. Belstock Name:…

Results of Operations and Financial Condition". The information contained herein and in the accompanying Exhibit 99.1 shall not be incorporated by reference into any filing of the Registrant, whether made before or after the date hereof, regardless of any general incorporation language in such filing, unless expressly incorporated by specific reference to such filing. The information in this report, including the exhibit hereto, shall not be deemed to be "filed" for purposes of Section 18 of…

The filing describes a change in the form of restricted stock unit award agreement, not a management change.

Entry into a Material Definitive Agreement. On February 18, 2026, the Board of Directors of Plumas Bancorp (the “Company”) and its subsidiary, Plumas Bank (the “Bank”), entered into indemnification agreements for Kevin Kaiser, EVP/Chief Credit Officer, appointed on January 1, 2026. The indemnification agreements require the Company and the Bank to indemnify their directors and executive officers and to advance expenses on their behalf to the fullest extent permitted by applicable law and esta…

Other Events Plumas Bancorp today announced that its Board of Directors has authorized a share repurchase program authorizing the Company to repurchase up to $25 million of the Company’s common stock through the fourth quarter of 2026. The Company may affect repurchases from time to time through open market purchases, privately negotiated transactions, block trades, or other means in accordance with applicable securities laws. The actual timing, number, and value of shares repurchased will de…

The filing describes a new incentive plan for employees, not a management change.

Other Events. On January 21, 2026 Plumas Bancorp ’ s Board of Directors declared a quarterly cash dividend in the amount of $0.33 per common share payable on February 18, 2026 to shareholders of record at the close of business day on February 4, 2026. SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. January 21, 2026 PLUMAS BANCORP By: /s/ Richard L.…

Results of Operations and Financial Condition". The information contained herein and in the accompanying Exhibit 99.1 shall not be incorporated by reference into any filing of the Registrant, whether made before or after the date hereof, regardless of any general incorporation language in such filing, unless expressly incorporated by specific reference to such filing. The information in this report, including the exhibit hereto, shall not be deemed to be "filed" for purposes of Section 18 of…

Executive Vice President and Chief Credit Officer (CCO) — Kevin Kaiser: Kevin Kaiser was promoted to Executive Vice President and Chief Credit Officer.

Entry into a Material Definitive Agreement. On December 17, 2025, the Board of Directors of Plumas Bancorp (the “Company”) and its subsidiary, Plumas Bank (the “Bank”), entered into indemnification agreements for Jack Prescott, EVP/Chief Banking Officer, appointed on July 21, 2025, and Matt Moseley, EVP/Regional Market President, appointed on July 1, 2025. The indemnification agreements require the Company and the Bank to indemnify their directors and executive officers and to advance expense…

Other Events. On November 19, 2025, Plumas Bank, a wholly-owned subsidiary of Plumas Bancorp (the “Company”), completed the sale of two administrative offices in Quincy, California (the “Properties”) to BBS Branch III, LLC, a Delaware limited liability company (“BBS”), for an aggregate cash purchase price of $5,550,000 pursuant to a previously announced Real Estate Purchase and Sale Agreement dated as of March 28, 2025 (the “Purchase Agreement”). Concurrent with the closing of the sale, Pluma…

Other Events. On October 15, 2025 Plumas Bancorp ’ s Board of Directors declared a quarterly cash dividend in the amount of $0.30 per common share payable on November 17, 2025 to shareholders of record at the close of business day on November 3, 2025. SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. PLUMAS BANCORP October 16, 2025 By: /s/ Richard L.…

Results of Operations and Financial Condition". The information contained herein and in the accompanying Exhibit 99.1 shall not be incorporated by reference into any filing of the Registrant, whether made before or after the date hereof, regardless of any general incorporation language in such filing, unless expressly incorporated by specific reference to such filing. The information in this report, including the exhibit hereto, shall not be deemed to be "filed" for purposes of Section 18 of…

Entry into a Material Definitive Agreement. On August 22, 2025, Plumas Bancorp (the “Company”) and its wholly-owned bank subsidiary, Plumas Bank (the “Bank”), entered into a Change in Control Agreement (each such agreement, a “CIC Agreement”) with each of Richard Belstock, Executive Vice President and Chief Financial Officer; Mathew Moseley, Executive Vice President and Market President; Aaron Boigon, Executive Vice President and Chief Information Officer; Jeff Moore, Executive Vice President…

Entry into a Material Definitive Agreement. On July 21, 2025, Plumas Bancorp (the “Company”) and its wholly-owned bank subsidiary, Plumas Bank (the “Bank”), entered into a Change in Control Agreement (each such agreement, a “CIC Agreement”) with each of Richard Belstock, Executive Vice President and Chief Financial Officer; Mathew Moseley, Executive Vice President and Market President; Aaron Boigon, Executive Vice President and Chief Information Officer; Jeff Moore, Executive Vice President a…

Executive Vice President and Chief Banking Officer (CBO) — Jack Prescott: Jack Prescott was promoted to Executive Vice President and Chief Banking Officer.

Other Events. On July 16, 2025 Plumas Bancorp ’ s Board of Directors declared a quarterly cash dividend in the amount of $0.30 per common share payable on August 15, 2025 to shareholders of record at the close of business day on August 1, 2025. SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. July 17, 2025 PLUMAS BANCORP By: /s/ Richard L. Belstock N…

Results of Operations and Financial Condition". The information contained herein and in the accompanying Exhibit 99.1 shall not be incorporated by reference into any filing of the Registrant, whether made before or after the date hereof, regardless of any general incorporation language in such filing, unless expressly incorporated by specific reference to such filing. The information in this report, including the exhibit hereto, shall not be deemed to be "filed" for purposes of Section 18 of…

Regulation FD Disclosure On June 3, 2025, Cornerstone Community Bancorp (“Cornerstone”) announced the results of its Special Meeting of Shareholders held on June 2, 2025, at which Cornerstone shareholders approved the principal terms of the Agreement and Plan of Merger and Reorganization dated January 28, 2025, providing for the merger of Cornerstone with and into Plumas Bancorp (the “Company”) and the conversion of each outstanding share of Cornerstone common stock into the right to receive…

Other Events. On April 16, 2025 Plumas Bancorp ’ s Board of Directors declared a quarterly cash dividend in the amount of $0.30 per common share payable on May 15, 2025 to shareholders of record at the close of business day on May 1, 2025. SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. April 17, 2025 PLUMAS BANCORP By: /s/ Richard L. Belstock Name:…

Results of Operations and Financial Condition". The information contained herein and in the accompanying Exhibit 99.1 shall not be incorporated by reference into any filing of the Registrant, whether made before or after the date hereof, regardless of any general incorporation language in such filing, unless expressly incorporated by specific reference to such filing. The information in this report, including the exhibit hereto, shall not be deemed to be "filed" for purposes of Section 18 of…

Entry into a Material Definitive Agreement. On March 28, 2025, Plumas Bank (the “Bank”), a wholly-owned subsidiary of Plumas Bancorp (the “Company”), entered into a Real Estate Purchase and Sale Agreement (the “Sale Agreement”) providing for the sale of two administrative offices in Quincy, California (the “Properties”) to Brookline Branch Services, LLC, a Delaware limited liability company (“Brookline”), for an aggregate cash purchase price of $5,550,000. The Agreement provides for a 50-day…