Andretti Acquisition Corp. II 10-Q

Item 5. Other Information Trading Arrangements During the quarterly period ended June 30, 2026, none of our directors or officers (as defined in Rule 16a-1(f) promulgated under the Exchange Act) adopted or terminated any “Rule 10b5-1 trading arrangement” or any “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408 of Regulation S-K. Additional Information None. 23 Item 6. Exhibits The following exhibits are filed as part of, or incorporated by reference into, this Quarterly Report. No. Description of Exhibit 31.1* Certification of the Principal Executive Officer pursuant to Rule 13a-14(a) and Rule 15d-14(a) under the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. 31.2* Certification of the Principal Financial Officer pursuant to Rule 13a-14(a) and Rule 15d-14(a) under the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. 32** Certification of the Principal Executive and Principal Financial Officer pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. 101.INS* Inline XBRL Instance 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 (Embedded as Inline XBRL document and contained in Exhibit 101). * Filed herewith. ** This certification is furnished to the SEC pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and is deemed not filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such filing. 24 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. ANDRETTI ACQUISITION CORP. II Date: August 6, 2026 By: /s/ William M. Brown Name: William M. Brown Title: Chief Executive Officer, Principal Financial and Accounting Officer (Principal Executive Officer and Principal Financial and Accounting Officer) 25