{"filings":[{"id":1195398,"accession_number":"0001104659-26-076400","cik":1918102,"company_name":"DEEP FISSION, INC.","ticker":"FISN","form_type":"8-K","filed_at":"2026-06-22T20:20:56+00:00","items":["8.01"],"status":"ready","headline":"Deep Fission completes IPO, raises $40M at $16.00 per share; stock begins trading on Nasdaq","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Offered 2.5M shares at $16.00/share; gross proceeds of $40M.","Underwriters have 30-day option to purchase up to 375,000 additional shares.","Stock began trading on Nasdaq Global Market on June 18, 2026 under symbol FISN.","Net proceeds to fund working capital, engineering, R&D, licensing, and construction of first pilot nuclear reactor."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"positive","materiality_score":0.75,"calibrated_materiality_score":0.75,"market_cap_usd":null,"market_cap_bucket":null,"market_cap_source":null,"market_cap_as_of_date":null,"daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":359469,"accession_number":"0001213900-22-042318","cik":1918102,"company_name":"DEEP FISSION, INC.","ticker":"FISN","form_type":"8-K","filed_at":"2022-07-28T23:59:59+00:00","items":["4.01"],"status":"ready","headline":"Surfside Acquisition appoints Grassi & Co. as new independent auditor for FY2022","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Grassi & Co. appointed as independent registered public accounting firm for fiscal year ending Dec 31, 2022.","No prior consultations with Grassi on accounting principles or audit opinions.","No disagreements or reportable events with the predecessor auditor occurred.","Change effective July 22, 2022."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"market_cap_usd":null,"market_cap_bucket":null,"market_cap_source":null,"market_cap_as_of_date":null,"daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":359468,"accession_number":"0001213900-22-040363","cik":1918102,"company_name":"DEEP FISSION, INC.","ticker":"FISN","form_type":"8-K","filed_at":"2022-07-19T23:59:59+00:00","items":["4.01","9.01"],"status":"ready","headline":"Surfside Acquisition's auditor REM resigns; audit report includes going concern paragraph","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Raich Ende Malter & Co. resigned as independent auditor effective July 13, 2022.","REM's audit report on 2021 financials included a going concern explanatory paragraph.","No disagreements or reportable events occurred between the company and REM during the period.","REM provided a letter to the SEC agreeing with the company's disclosures."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"negative","materiality_score":0.65,"calibrated_materiality_score":0.65,"market_cap_usd":null,"market_cap_bucket":null,"market_cap_source":null,"market_cap_as_of_date":null,"daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null}],"next_cursor":null}