{"filing": {"accession": "0001171843-26-006687", "cik": "0001943421", "ticker": "RUBI", "company_name": "Rubico Inc.", "form_type": "424B5", "filing_type": "424B5", "filing_date": "2026-10-19", "accepted_datetime": null, "acceptance_datetime": null, "accepted_at": null, "primary_doc_url": "https://www.sec.gov/Archives/edgar/data/1943421/000117184326006687/0001171843-26-006687-index.htm", "filing_url": "https://www.sec.gov/Archives/edgar/data/1943421/000117184326006687/0001171843-26-006687-index.htm", "period_of_report": null}, "html_url": "/api/filings/000117184326006687/stream", "exhibits": [], "sections": [], "tables": [{"table_index": 0, "table_type": "financial", "caption": null, "header_text": "Total"}, {"table_index": 2, "table_type": "financial", "caption": null, "header_text": "Page"}, {"table_index": 3, "table_type": "financial", "caption": null, "header_text": "ABOUT THIS PROSPECTUS1"}, {"table_index": 30, "table_type": "financial", "caption": null, "header_text": "Securities Offered(i) the Notes in an aggregate initial principal amount of up to $15,000,000, (ii) common shares issuable from time to time upon conversion of the Notes, (iii) Warrants to purchase co"}, {"table_index": 31, "table_type": "financial", "caption": null, "header_text": "Note Conversion PriceOutstanding principal and accrued interest under the Notes will be convertible immediately upon issuance of the Notes, at the option of the holder, into common shares at either (i"}, {"table_index": 41, "table_type": "financial", "caption": null, "header_text": "Debt:(1) (2)Actual(3)As Adjusted(4) (8)As Further Adjusted(5)-(7)"}, {"table_index": 71, "table_type": "financial", "caption": null, "header_text": "Accounting fees and expenses15,000"}, {"table_index": 75, "table_type": "text", "caption": null, "header_text": "\u2022our Report on Form 6-K filed with the Commission onApril 21, 2026;"}, {"table_index": 76, "table_type": "text", "caption": null, "header_text": "\u2022our Report on Form 6-K filed with the Commission onJune 23, 2026;"}, {"table_index": 77, "table_type": "text", "caption": null, "header_text": "\u2022our Report on Form 6-K filed with the Commission onJuly 15, 2026;"}, {"table_index": 86, "table_type": "financial", "caption": null, "header_text": "ABOUT THIS PROSPECTUS1"}, {"table_index": 141, "table_type": "text", "caption": null, "header_text": "Debt:(1) (2)Actual(6)As Adjusted"}, {"table_index": 239, "table_type": "text", "caption": null, "header_text": "Number of Common Shares Beneficially Owned Prior to OfferingMaximum Number of Common Shares to be OfferedNumber of Common Shares to be Beneficially Owned After the Registration Statement(2)"}, {"table_index": 243, "table_type": "text", "caption": null, "header_text": "\u2022purchases by a broker-dealer, as principal, and resale by the broker-dealer for its account;"}, {"table_index": 245, "table_type": "text", "caption": null, "header_text": "\u2022trading plans entered into by us pursuant to Rule 10b5-1 under the Securities Exchange Act of 1934, as amended, or the Exchange Act, that are in place at the time of an offering pursuant to this pros"}, {"table_index": 253, "table_type": "financial", "caption": null, "header_text": "SEC registration fee$28,139"}, {"table_index": 259, "table_type": "text", "caption": null, "header_text": "\u00b7our Report on Form 6-K filed with the Commission onApril 21, 2026;"}], "exhibits_pending": false, "cdn_html": true, "response_time_ms": 30}