Roman DBDR Acquisition Corp. II 10-Q

Item 5. Other Information N o n e Item 6. Exhibits The following exhibits are filed as part of this Quarterly Report on Form 10-Q. ​ ​ ​ No. Description of Exhibit 31.1* Certification of Principal Executive Officer Pursuant to Securities Exchange Act Rules 13a-14(a), as adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 31.2* Certification of Principal Financial Officer Pursuant to Securities Exchange Act Rules 13a-14(a), as adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 32.1** 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 32.2** Certification of Principal Financial Officer Pursuant to 18 U.S.C. Section 1350, as adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 101.INS* XBRL Instance Document 101.SCH* XBRL Taxonomy Extension Schema Document 101.CAL* XBRL Taxonomy Extension Calculation Linkbase Document 101.DEF* XBRL Taxonomy Extension Definition Linkbase Document 101.LAB* XBRL Taxonomy Extension Labels Linkbase Document 101.PRE* 104 XBRL Taxonomy Extension Presentation Linkbase Document Cover Page Interactive Data File (Embedded as Inline XBRL document and contained in Exhibit 101) ​ * Filed herewith. ** Furnished herewith ​ 27 Table of Contents SIGNATURES In accordance with the requirements of the Exchange Act, the registrant caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. ​ ​ ​ ROMAN DBDR ACQUISITION CORP. II Date:May 21, 2025 By: /s/ John C. Small Name: John C. Small Title: Chief Financial Officer ​ ​ ​ ​ 28