CITIZENS & NORTHERN CORP 10-Q

Item 5. Other Information During the three months ended March 31, 2024, no director or officer of the Corporation adopted or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement”, as each term is defined in Item 408(a) of Regulation S-K. ​ On September 25, 2023, the Corporation entered into a Rule 10b5-1 Issuer Repurchase Plan with a registered broker to effect repurchases of the Corporation’s common stock under the Corporation’s treasury stock repurchase program. The 10b5-1 issuer repurchase plan will terminate upon the earlier of all 750,000 shares of common stock authorized for repurchase having been repurchased or September 22, 2026. ​ . ​ ​ 55 Table of Contents CITIZENS & NORTHERN CORPORATION – FORM 10-Q ​ Item 6. Exhibits ​ 3.1 Articles of Incorporation Incorporated by reference to Exhibit 3.1 of The Corporation’s Form 10-Q filed May 6, 2022 ​ 3.2 By-laws Incorporated by reference to Exhibit 3.1 of The Corporation’s Form 8-K filed February 18, 2022 ​ 31. Rule 13a-14(a)/15d-14(a) certifications: ​ ​ ​ ​ 31.1 Certification of Chief Executive Officer Filed herewith ​ ​ ​ ​ 31.2 Certification of Chief Financial Officer Filed herewith ​ 32. Section 1350 certifications Filed herewith ​ 101.INS Inline XBRL Instance Document. Filed herewith ​ 101.SCH Inline XBRL Schema Document. ​ Filed herewith ​ 101.CAL Inline XBRL Calculation Linkbase Document. ​ Filed herewith ​ ​ ​ ​ 101.DEF Inline XBRL Definition Linkbase Document. ​ Filed herewith ​ ​ ​ ​ 101.LAB Inline XBRL Label Linkbase Document. ​ Filed herewith ​ ​ ​ ​ 101.PRE Inline XBRL Presentation Linkbase Document. ​ Filed herewith ​ ​ ​ ​ 104 The cover page of the Corporation’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2024, formatted in Inline XBRL (contained in Exhibit 101). ​ Filed herewith ​ ​ ​ ​ 56 Table of Contents CITIZENS & NORTHERN CORPORATION – FORM 10-Q SIGNATURES 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, thereunto duly authorized. CITIZENS & NORTHERN CORPORATION May 7, 2024 By: /s/ J. Bradley Scovill Date President and Chief Executive Officer May 7, 2024 By: /s/ Mark A. Hughes Date Treasurer and Chief Financial Officer ​ ​ ​ ​ 57