{"schema_version":"secwatch.filing_event.v1","accession":"0001829126-26-002190","form_type":"8-K","ticker":"QSEA","cik":"0002047455","company_name":"Quartzsea Acquisition Corp","filed_at":"2026-03-11T23:59:59+00:00","discovered_at":"2026-05-14T18:02:37.113658+00:00","generated_at":"2026-05-15T15:14:39.648067+00:00","sec_items":["1.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.45,"calibrated_materiality_score":0.45,"confidence":"high","headline":"Quartzsea Acquisition amends underwriting agreement to revise deferred commission terms","bullets":["Deferred underwriting commission set at 4% of gross proceeds from firm units ($2,880,000) and option units (up to $432,000).","Commission payable from trust account only upon consummation of initial business combination, capped at 4% of trust funds after redemptions.","Underwriters may waive the deferred commission prior to business combination via written notice.","If no business combination, underwriters forfeit deferred commission; trust proceeds distributed pro-rata to public shareholders."],"urls":{"canonical":"https://secwatch.observer/filing/0001829126-26-002190","json":"https://secwatch.observer/filing/0001829126-26-002190.json","markdown":"https://secwatch.observer/filing/0001829126-26-002190.md","text":"https://secwatch.observer/filing/0001829126-26-002190.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/2047455/000182912626002190/0001829126-26-002190-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/2047455/000182912626002190/quartzsea_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-15T15:14:39.648067+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"a90095d3f07ef00191499f0bfdac5ff9b3763544","claim":"Quartzsea Acquisition Corp amended Amendment No. 1 to the Underwriting Agreement with Polaris Advisory Partners, LLC (f/k/a SPAC Advisory Partners), a division of Kingswood Capital Partners LLC (effective 2026-03-03).","evidence_excerpt":"On March 3, 2026, Quartzsea Acquisition Corporation (the “Company”) entered into Amendment No. 1 to the Underwriting Agreement (the “Amendment”) with Polaris Advisory Partners, LLC (f/k/a SPAC Advisory Partners), a division of Kingswood Capital Partners LLC, as representative of the several underwriters (the “Representative”), and Kingswood Capital Partners LLC.","evidence_source":"SEC 8-K Item 1.01/1.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/2047455/000182912626002190/0001829126-26-002190-index.htm","confidence":0.9,"family_label":"Material Agreements","details":[{"label":"Action","value":"amendment"},{"label":"Agreement","value":"underwriting"},{"label":"Counterparty","value":"Polaris Advisory Partners, LLC (f/k/a SPAC Advisory Partners), a division of Kingswood Capital Partners LLC"},{"label":"Effective","value":"2026-03-03"}]}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}