<SEC-DOCUMENT>0001213900-26-052899-index.html : 20260506 <SEC-HEADER>0001213900-26-052899.hdr.sgml : 20260506 <ACCEPTANCE-DATETIME>20260506171539 ACCESSION NUMBER: 0001213900-26-052899 CONFORMED SUBMISSION TYPE: 8-K PUBLIC DOCUMENT COUNT: 13 CONFORMED PERIOD OF REPORT: 20260504 ITEM INFORMATION: Entry into a Material Definitive Agreement ITEM INFORMATION: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant ITEM INFORMATION: Unregistered Sales of Equity Securities ITEM INFORMATION: Financial Statements and Exhibits FILED AS OF DATE: 20260506 DATE AS OF CHANGE: 20260506 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Eureka Acquisition Corp CENTRAL INDEX KEY: 0002000410 STANDARD INDUSTRIAL CLASSIFICATION: WATER TRANSPORTATION [4400] ORGANIZATION NAME: 01 Energy & Transportation EIN: 000000000 STATE OF INCORPORATION: E9 FISCAL YEAR END: 0930 FILING VALUES: FORM TYPE: 8-K SEC ACT: 1934 Act SEC FILE NUMBER: 001-42152 FILM NUMBER: 26949701 BUSINESS ADDRESS: ADDRESS IS A NON US LOCATION: YES STREET 1: 14 PRUDENTIAL TOWER CITY: SINGAPORE PROVINCE COUNTRY: U0 ZIP: 049712 BUSINESS PHONE: 1 949 899 1827 MAIL ADDRESS: ADDRESS IS A NON US LOCATION: YES STREET 1: 14 PRUDENTIAL TOWER CITY: SINGAPORE PROVINCE COUNTRY: U0 ZIP: 049712 </SEC-HEADER> <DOCUMENT> <TYPE>8-K <SEQUENCE>1 <FILENAME>ea0289458-8k425_eureka.htm <DESCRIPTION>CURRENT REPORT <TEXT> Document 1 - file: ea0289458-8k425_eureka.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-10.1 <SEQUENCE>2 <FILENAME>ea028945801ex10-1.htm <DESCRIPTION>EXTENSION PROMISSORY NOTE DATED MAY 4, 2026, ISSUED BY THE COMPANY TO MARINE THINKING INC <TEXT> Document 2 - file: ea028945801ex10-1.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.SCH <SEQUENCE>3 <FILENAME>eurk-20260504.xsd <DESCRIPTION>XBRL SCHEMA FILE <TEXT> Document 3 - file: eurk-20260504.xsd
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.DEF <SEQUENCE>4 <FILENAME>eurk-20260504_def.xml <DESCRIPTION>XBRL DEFINITION FILE <TEXT> Document 4 - file: eurk-20260504_def.xml
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.LAB <SEQUENCE>5 <FILENAME>eurk-20260504_lab.xml <DESCRIPTION>XBRL LABEL FILE <TEXT> Document 5 - file: eurk-20260504_lab.xml
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.PRE <SEQUENCE>6 <FILENAME>eurk-20260504_pre.xml <DESCRIPTION>XBRL PRESENTATION FILE <TEXT> Document 6 - file: eurk-20260504_pre.xml
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>8 <FILENAME>R1.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 8 - file: R1.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>9 <FILENAME>report.css <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 9 - file: report.css
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>10 <FILENAME>Show.js <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 10 - file: Show.js
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>12 <FILENAME>FilingSummary.xml <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 12 - file: FilingSummary.html
Document 12 - RAW XML: FilingSummary.xml
</DOCUMENT> <DOCUMENT> <TYPE>JSON <SEQUENCE>15 <FILENAME>MetaLinks.json <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 15 - file: MetaLinks.json
</DOCUMENT> <DOCUMENT> <TYPE>ZIP <SEQUENCE>16 <FILENAME>0001213900-26-052899-xbrl.zip <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 16 - file: 0001213900-26-052899-xbrl.zip
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>17 <FILENAME>ea0289458-8k425_eureka_htm.xml <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 17 - file: ea0289458-8k425_eureka_htm.html
Document 17 - RAW XML: ea0289458-8k425_eureka_htm.xml
</DOCUMENT> </SEC-DOCUMENT>