{"url_path":"/sec/hfwa/10-q/2026/item-6","section_key":"item-6","section_title":"Item 6 EXHIBITS","topic":"sec","document":{"doc_type":"10-Q","doc_date":"2026-05-08","source_url":"https://www.sec.gov/Archives/edgar/data/1046025/0001628280-26-032682-index.html","accession_number":"0001628280-26-032682","cik":"0001046025","ticker":"HFWA","issuer_name":"HERITAGE FINANCIAL CORP /WA/","edgar_url":"https://www.sec.gov/Archives/edgar/data/1046025/0001628280-26-032682-index.html","primary_entity_key":"0001046025","primary_entity_name":"HERITAGE FINANCIAL CORP /WA/"},"word_count":339,"has_tables":true,"body_markdown":"ITEM 6.     EXHIBITS\n\nIncorporated by Reference\n\nExhibit No.\nDescription of ExhibitFormExhibitFiling Date/Period End Date\n\n2.1\n\n[Agreement and Plan of Merger, by and between Heritage Financial Corporation and Olympic Bancorp, Inc., dated September 25, 2025*](https://www.sec.gov/ix?doc=/Archives/edgar/data/0001046025/000162828025042858/hfwa-20250925.htm)\n\n8-K\n2.109/26/2025\n\n3.1\n\n[Amended and Restated Articles of Incorporation of Heritage Financial Corporation](https://www.sec.gov/Archives/edgar/data/1046025/000119312510122992/dex31b.htm)\n\n8-K\n\n3.1(B)\n05/18/2010\n\n3.2\n\n[Amendment to Amended and Restated Articles of Incorporation of Heritage Financial Corporation](https://www.sec.gov/Archives/edgar/data/1046025/000119312511070719/ddef14a.htm)\n\nDEF-14A\n\n_\n03/18/2011\n\n3.3\n\n[Amended and restated Bylaws of Heritage Financial Corporation](https://www.sec.gov/Archives/edgar/data/1046025/000104602520000157/ex33-hfcbylawsamended0.htm)\n\n8-K\n3.306/30/2020\n\n10.1\n\n[Form of Heritage Bank 2026 Endorsement Method Split Dollar Agreement](https://www.sec.gov/Archives/edgar/data/1046025/000162828026012703/ex-10ormofheritagebank20.htm)\n\n10-K\n10.402/27/2026\n\n31.1\n[Certification of Principal Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002](ex-311q126.htm) (1)\n\n31.2\n[Certification of Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002](ex-312q126.htm) (1)\n\n54\n\n[Table of Contents](#i551fd7b5d6f4451e9c8139ab417579bd_7)\n\nIncorporated by Reference\n\nExhibit No.\nDescription of ExhibitFormExhibitFiling Date/Period End Date\n\n32.1\n[Certification of Principal Executive Officer and Principal Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002](ex-321q126.htm) (1)\n\n101.INS\nXBRL Instance Document (1)\n\n101.SCH\nXBRL Taxonomy Extension Schema Document (1)\n\n101.CAL\nXBRL Taxonomy Extension Calculation Linkbase Document (1)\n\n101.DEF\nXBRL Taxonomy Extension Definition Linkbase Document (1)\n\n101.LAB\nXBRL Taxonomy Extension Label Linkbase Document (1)\n\n101.PRE\nXBRL Taxonomy Extension Presentation Linkbase Document (1)\n\n104Cover Page Interactive Data File (formatted in Inline XBRL and contained in Exhibit 101)\n\n* The Company has omitted schedules and similar attachments to the subject agreement pursuant to Item 601(b) of Regulation S-K. The Company will furnish a copy of any omitted schedule or similar attachment to the SEC upon request.\n\n** Indicates management contract or compensatory plan or arrangement.\n\n(1) Filed herewith.\n\nSIGNATURES\n\nPursuant 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.\n\nHERITAGE FINANCIAL CORPORATION\n\nDate:\n\nMay 8, 2026/S/ BRYAN D. MCDONALD\n\nBryan D. McDonald\n\nPresident and Chief Executive Officer\n\n(Principal Executive Officer)\n\nDate:\n\nMay 8, 2026/S/ DONALD J. HINSON\n\nDonald J. Hinson\n\nExecutive Vice President and Chief Financial Officer\n\n(Principal Financial Officer)\n\n55"}