{"url_path":"/sec/cndaw/10-q/2026/item-6","section_key":"item-6","section_title":"Item 6 Exhibits.**","topic":"sec","document":{"doc_type":"10-Q","doc_date":"2026-05-14","source_url":"https://www.sec.gov/Archives/edgar/data/1851959/0001104659-26-060465-index.html","accession_number":"0001104659-26-060465","cik":"0001851959","ticker":"CNDA","issuer_name":"Concord Acquisition Corp II","edgar_url":"https://www.sec.gov/Archives/edgar/data/1851959/0001104659-26-060465-index.html","primary_entity_key":"0001851959","primary_entity_name":"Concord Acquisition Corp II"},"word_count":624,"has_tables":true,"body_markdown":"**Item 6. Exhibits.**\n\n​\n\n**Exhibit ********Number**\n\n  ​ ​\n\n**Description**\n\n3.1(1)\n\n​\n\n[Certificate of Amendment to the Amended and Restated Certificate of Incorporation of Concord Acquisition Corp II, dated December 16, 2025.](https://www.sec.gov/Archives/edgar/data/1851959/000110465925122065/tm2533628d1_ex3-1.htm)\n\n​\n\n​\n\n​\n\n10.1(2)\n\n​\n\n[Form of Non-Redemption Agreement and Assignment of Economic Interest.](https://www.sec.gov/Archives/edgar/data/1851959/000110465924065107/tm2415558d1_ex10-1.htm)\n\n​\n\n​\n\n​\n\n10.2(3)\n\n​\n\n[Agreement and Plan of Merger, dated as of August 26, 2024, by and among Concord Acquisition Corp II, Events.com, Inc. and Concord Merger Sub Inc.](https://www.sec.gov/Archives/edgar/data/1851959/000110465924093130/tm2422691d1_ex2-1.htm)\n\n​\n\n​\n\n​\n\n10.3(3)\n\n​\n\n[Lock-Up Agreement.](https://www.sec.gov/Archives/edgar/data/1851959/000110465924093130/tm2422691d1_ex10-1.htm)\n\n​\n\n​\n\n​\n\n10.4(3)\n\n​\n\n[Sponsor Support Agreement, dated as of August 26, 2024, by and among Concord Acquisition Corp II, Events.com, Inc., Concord Sponsor Group II LLC and CA2 Co-Investment LLC.](https://www.sec.gov/Archives/edgar/data/1851959/000110465924093130/tm2422691d1_ex10-2.htm)\n\n​\n\n​\n\n​\n\n10.5(3)\n\n​\n\n[Stockholder Support Agreement, dated as of August 26, 2024, by and among Concord Acquisition Corp II and certain stockholders of Events.com, Inc.](https://www.sec.gov/Archives/edgar/data/1851959/000110465924093130/tm2422691d1_ex10-3.htm)\n\n​\n\n​\n\n​\n\n10.6(3)\n\n​\n\n[Form of Tax Receivables Agreement.](https://www.sec.gov/Archives/edgar/data/1851959/000110465924093130/tm2422691d1_ex10-4.htm)\n\n​\n\n​\n\n​\n\n10.7(3)\n\n​\n\n[Form of Registration Rights Agreement.](https://www.sec.gov/Archives/edgar/data/1851959/000110465924093130/tm2422691d1_ex10-5.htm)\n\n​\n\n​\n\n​\n\n10.8(2)\n\n​\n\n[Amended and Restated Promissory Note, dated May 31, 2024](https://www.sec.gov/Archives/edgar/data/1851959/000110465924067973/tm2415558d1_ex10-2.htm)\n\n​\n\n​\n\n​\n\n31.1\n\n \n\n[Certification of Principal Executive Officer pursuant to Rule 13a-14(a) and Rule 15d-14(a) under the Securities Exchange Act of 1934, as amended, as adopted pursuant to Section 302 of the Sarbanes Oxley Act of 2002.](cnda-20260331xex31d1.htm)\n\n​\n\n​\n\n31.2\n\n** **\n\n[Certification of Principal Financial and Accounting Officer pursuant to Rule 13a-14(a) and Rule 15d-14(a) under the Securities Exchange Act of 1934, as amended, as adopted pursuant to Section 302 of the Sarbanes Oxley Act of 2002.](cnda-20260331xex31d2.htm)\n\n​\n\n** **\n\n32.1*\n\n** **\n\n[Certification of Principal Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes Oxley Act of 2002.](cnda-20260331xex32d1.htm)\n\n** **\n\n32.2*\n\n** **\n\n[Certification of Principal Financial and Accounting Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes Oxley Act of 2002.](cnda-20260331xex32d2.htm)\n\n​\n\n \n\n101.INS\n\n​\n\nInline XBRL Instance Document.\n\n​\n\n \n\n​\n\n101.SCH\n\n \n\nInline XBRL Taxonomy Extension Schema Document.\n\n​\n\n \n\n​\n\n101.CAL\n\n \n\nInline XBRL Taxonomy Extension Calculation Link base Document.\n\n​\n\n \n\n​\n\n101.DEF\n\n​\n\nInline XBRL Taxonomy Extension Definition Linkbase Document.\n\n​\n\n​\n\n​\n\n101.LAB\n\n \n\nInline XBRL Taxonomy Extension Label Linkbase Document.\n\n​\n\n \n\n​\n\n101.PRE\n\n \n\nInline XBRL Taxonomy Extension Presentation Linkbase Document.\n\n​\n\n​\n\n​\n\n104\n\n \n\nCover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101).\n\n*\n\nThese certifications are furnished to the SEC pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and are deemed not filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, nor shall they be deemed incorporated by reference in any filing under the Securities Act of 1933, except as shall be expressly set forth by specific reference in such filing.\n\n37\n\n[Table of Contents](#TOC)\n\n(1)Incorporated by reference to an exhibit to the Registrant’s Current Report on Form 8-K, filed with the Securities and Exchange Commission on December 17, 2025.\n\n(2)\n\nIncorporated by reference to an exhibit to the Registrant’s Current Report on Form 8-K, filed with the Securities and Exchange Commission on June 3, 2024.\n\n(3)\n\nIncorporated by reference to an exhibit to the Registrant’s Current Report on Form 8-K, filed with the Securities and Exchange Commission on August 27, 2024.\n\n​\n\n38\n\n[Table of Contents](#TOC)\n\n​\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 on this 13th day of May 2026.\n\n​\n\n​\n\n**CONCORD ACQUISITION CORP II**\n\n​\n\n​\n\n​\n\nBy:\n\n/s/ Jeff Tuder\n\n​\n\nName:\n\nJeff Tuder\n\n​\n\nTitle:\n\nChief Executive Officer\n\n​\n\n​\n\n(Principal Executive Officer)\n\n​\n\n​\n\nBy:\n\n/s/ Michele Cito\n\n​\n\nName:\n\nMichele Cito\n\n​\n\nTitle:\n\nChief Financial Officer\n\n​\n\n​\n\n(Principal Financial and Accounting Officer)\n\n​\n\n39"}