{"filing":{"accession_number":"0001493152-26-027517","cik":"0000793524","ticker":"REFR","company_name":"RESEARCH FRONTIERS INC","form":"8-K","filing_date":"2026-06-05","report_date":null,"primary_document":"form8-k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/793524/000149315226027517/form8-k.htm"},"events":[{"id":6606,"run_id":5783,"accession_number":"0001493152-26-027517","anchor_item_number":null,"event_type":"delisting_risk","event_domain":"terminal","is_material":true,"confidence":0.98,"summary":"Research Frontiers received two deficiency notification letters from Nasdaq on June 2, 2026, advising that the Company no longer satisfies the $1.00 minimum bid price requirement and the $35 million minimum Market Value of Listed Securities requirement for continued listing on The Nasdaq Capital Market. The Company has 180 calendar days until November 30, 2026, to regain compliance, with no assurance of success. This is a classic delisting risk disclosure under Item 3.01.","company_name":"RESEARCH FRONTIERS INC","ticker":"REFR","filing_date":"2026-06-05","submitted_at":null,"items":null}],"classifications":[{"id":4922,"accession_number":"0001493152-26-027517","item_number":null,"item_title":null,"event_type":"delisting_risk","event_domain":"terminal","is_material":true,"confidence":0.98,"reasoning":"Research Frontiers received two deficiency notification letters from Nasdaq on June 2, 2026, advising that the Company no longer satisfies the $1.00 minimum bid price requirement and the $35 million minimum Market Value of Listed Securities requirement for continued listing on The Nasdaq Capital Market. The Company has 180 calendar days until November 30, 2026, to regain compliance, with no assurance of success. This is a classic delisting risk disclosure under Item 3.01.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-05T21:01:34.019399+00:00","company_name":"RESEARCH FRONTIERS INC","ticker":"REFR","filing_date":"2026-06-05"}]}